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§ COMMITTEE REPORT REGARDING AMMENDMENT OF THE TRIPURA BUILDING RULES, 2004 August, 2016 GOVERNMENT OF TRIPURA URBAN DEVELOPMENT DEPARTMENT Page 1

COMMITTEEREPORT REGARDINGAMMENDMENTOF ... Report... · “No piece of land where a closed, sick or other industry as located or is in operation, shall be used as a site forconstruction

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Page 1: COMMITTEEREPORT REGARDINGAMMENDMENTOF ... Report... · “No piece of land where a closed, sick or other industry as located or is in operation, shall be used as a site forconstruction

§

COMMITTEE REPORT

REGARDING AMMENDMENT OF

THE TRIPURA BUILDING RULES, 2004

August, 2016

GOVERNMENT OF TRIPURAURBAN DEVELOPMENT DEPARTMENT

Page 1

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~.

BACKGROUND »

The Tripura Municipal Act. 1994 was enacted in the year I994. Linthis Act. a Rule namely the Tripura Building Rules. Z004 was drafted as_

requirement of the Section 273 read with Section I18 of the Tripura Munici

Act. I994 (Tripura Act No. 7 of I994) by the Town & Country Plarln

Organisation under Urban Development l)epartment which was finally approx

by the Government of Tripura on the 4"‘ December. 2004. The Rules 'v

subsequently amended on 27"‘ May. 201 I. Since then the amended Building Ru

are in force in all Urban area ot'Tripura. But during implementation ofthe Rul

different problems are being faced by the Urban Local Bodies (Ul-Bs). In t

regard the State Government as well as Urban Local Bodies came across sotsuggestions from different corners of the society for relaxation of some provisi

in the Rules. Accordingly, to examine the existing Tripura Building Rules. 20

and to suggest necessary changes that would be required. the Urban Developmt

Department constituted a Committee headed by the Chief lingineer. llrb

Development Department on 9"‘ February. Z016. The Notification of t

Committee is placed at ‘Annexure-A".

PROCEEDINGS

(i) The First meeting of the Committee was held on 27"‘ April. ZOI6 whe

the representative ol‘ the C hiet‘ Planner. Government of India; representati

of PWD(R&B). Government of Tripura and representative of Natior

Disaster Management Authority were present apart from the Chiel“ l<Ingine<

Urban Development Department and Town 8; Country Planner. llrb;

Development Department. I

(ii) As per recommendation of the Committee. the opinion of all ULII

PWD (Building). Disaster Management Authority ol‘ the State. Revent

Department and Director. Fire Service were invited. Opinion from people

general was also invited through press media. The opinion/suggestion :received was complied to the extend possible.

(iii) The National Building Code. Model Building Bye Laws. West Beng

Building Rules. Assam Building Rules. llaryana Building Rules are aleconsulted. The time to time suggestions received from Ministry of Urbz

Development. Government of India. are also taken into consideration.

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/ 1(iv) The Chief Engineer. PWD (Building) was also invited in the Committee

meeting for obtaining his valuable suggestions in this regard. L

(v) The provisions of the Tripura Building Rules. Z004 were scrutinized in

detail by the Committee members.

(vi) After detailed deliberations the Committee finalized its recommendations/suggestions in its last meeting held on 9"‘ August. 2016.

3.0 RECOMMENDATIONS- Following unanimous recommendations on the Tripura Building

Rules. 2004 are made for placing the same before the Government. _

(i) Sub-rule (a)(50)(i) after sub-rule (a)(50) of rule 2 of the Principal Rules

shall be inserted with thefollowing:“ "Person" means any individual Indian citizen or an organization / Department of

Government I Semi Government I Private or Corporate body or Joint Venturecompany."

(ii) Sub-rule (n)(64)(i) after sub-rule (a)(64) of rule 2 of the Principal Rules

shall be inserted with thefollowing:

“ “ULB" means Urban Local Body like Municipal Corporation / Municipal Council /Nagar Panchayat."

(iii) Sub-rule (I)(a) of rule 4 of the Principill Rules shrill be substituted by the

following:“land record is in conformity with the proposed construction and the plot of land

is at least 100 sq. mt. in area for residential purposes and minimum 40 sq. mt. for thepurposes other than residential purposes.

Provided that for plot size less than specified above, construction of not morethan single storied may be permitted not withstanding other mandatory provisions ofthe rule." ' »

(iv) Sub-rule (3) of rule 4 of the Principal Rules shall be substituted by the

following: A

Page 3

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“No piece of land where a closed, sick or other industry as located or is inoperation, shall be used as a site for construction of any building other than industrialpurpose." '

(v) Sub-rule (2) of rule 5 of the Rrincipal Rules shall be substituted by thefollowing: A

“in case of a promoter submitting site planl building plan for approval. allprovisions made in the updated version of Tripura Building Rules shall apply;"

(vi) Rule l0(A) after rule I0 of the Principal Rules shall be inserted with the

following: R

“Amalgamation of land(1) Amalgamation of plots within the ULB area shall be allowed with prior

approval of the ULB followed by registration as Society and or Joint Venture.(2) Amalgamated plot(s) should satisfy the criteria in Rule 4(1).(3) Amalgamated plot should be considered as a unit for application of relevant

Rules laid down in this Rule."

(vii) Rule 42 ofthe Principal Rules shall be deleted.

(viii) Sub-rule (2)(a) of rule 46 of the Principal Rules shall be substituted by

thefollowing:

“(i) ln the case of a residential building, with other occupancies if any on lessthan 10% of the total covered area of building, the width of such street or passageshall not be less than 1.80 metres at any part; _ ,

(ii) ln case of a building other than residential purpose having occupancy on10% or more of the total covered area of the building, the width of suchstreet orpassage shall not be less than 8.00 metres at any part."

(ix) Sub-rule (3) of rule 46 of the Principal Rules shall be substituted by thefollowing:

"Any building which is fully or partly put to assembly occupancy for the purposeof theatre, motion picture house, city hall, skating ring, auditorium, exhibition hall or forsimilar other purposes shall not be allowed on a plot located within 50 metres ofjunction of two streets, the width of each of which is 10.00 metres or more."

Page 4F

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(x) Sub-rule (I) of rule 47 of the Principal Rules shall be substituted by the

following: '

“(1) The maximum permissible ground coverage for building, when a plotcontains a single building, shall depend on the plot size and the use of the building asgiven in the table below:

'_[ABLEMaximum Permissible Ground Coverag

(Plot containing a single building)

Plot size andt pe of buildin Maximum pe'""5S“°'e iiigmylfidii_. -29y.s@s¢-,(a) Plot size up to 200 sq. metres

(i) Residential 70%I (ii) Otherthan Residential 50% ‘-__z___;ii

l (b) Plot size above 200 sq. metres i._..._._.§ui.!qin.9§.Qfall tyr>¢[email protected]§sS. . l_._5_Q_°/£_._._.....___.*,... .-.-..-.,___.-__...,_,,-___

Sh

(xi) Sub-rule (3) of rule 48 of the Principal Rules shall be substituted by the

following:

“(3) The maximum permissible height of buildings on a plot shall be asgiven in the table below:

TABLE

eta

Width of means of access R A A l Q “Maximum permissible height WW,t__i_!1Q1<-ii§_§)ss_,_.*,._-,,__ (in melYe$)__,_ ,.

a) Road width between 1.80 and 2.40 Upto 08.00 _______ ____(_______(b)”Road width above 2.4 and uptg 5.00 _ Upto 10.00 __»

aboye_§.O0 _and upto 8.00 _________ __ Upto 12.50 _above 8 O0 and upto 15 00 U to 14.50 -~ A ..._..._ P a _.

__(e) above 15.00__ 4__m_Z Wyw_ Tall buildings (i.e above 14.5 mt.)E . _ . .xplanation. - This table shall be read with rule 46 For height of build‘. ingsexceeding 14.50 meters, rule 51 shall be referred. But buildings above 14.5 mts. inheight ermission h ll b ' ' 'p s a e obtained from the State Government with the services ofgtheY,T_e_ch_nicalAppraisal§orn_rr1ttee (TAC) as indicated in rule 51..

(xii) Sub-rule (2) of rule 49 of the Principal Rules shall be substituted by the

following: ' i '

(2) “The minimum front open spaces shall be as follows:-

'_ dingAvi_'4i'»ivi" PM Height of R Minimumifront open spacebuilding at ground level at its, __,,_._tmelr@$) Jarwwestparl (metre$)._... U i<>145<>Assembly/.-liJ.§ltt\il_i9i1€l! .l!.i2*9..14-50 10____ _ - - _ _ M.-. _--__

Page 5

Page 6: COMMITTEEREPORT REGARDINGAMMENDMENTOF ... Report... · “No piece of land where a closed, sick or other industry as located or is in operation, shall be used as a site forconstruction

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_. ...__._ _. _... ....__, ..__... ., _,_

€&iITc§£&'aTi*E;Tui:: j"W 4 soMCo’mn_iercial having built 1 Upto14.50 4.00up area more than 100 i l

__,__4i_t»____;se_...

___._l__sqm. _ __ G g_ 7 W __

lndustriall Mercantile -Upto14.5O 5.00ii§[email protected]%)/_5$9L?9E_._.- _- .__,¢,___s..s, __._ - ._Others not specified Ai Upto 14.50 ; 1.80above ___ ____M___M____;(_*{wgA{________lL_g ______M___At#__M>

Provided that any building on a plot not more than 150 sqm and upto 8.00758high of buildings should have minimum 1.20 m front open space. *1

Provided that for mixed use buildings, the minimum front open space shall bethe one applicable for that particular occupancy which gives the highest provision ofthe minimum front open space in this rule."

i_____t_

(xiii) Sub-rule (3) of rule 49 of the Principal Rules shall be substituted by the

following: ~ »“(3) The minimum rear open space shall be as fo|lows:-

Every building shall have a minimum rear open space at ground level of awidth at its narrowest part of not less than that indicated below;-

'T”TH€i§i§(E>T’b"i]T<iiii;‘TFriQFé§TWT” Witt;;n'u;a;aa?5,;aa§,;a§;rt; l-s_,._ ___.. .._... - ........Qé[L<2!.l'§.5_LQ§'LQl"§I[§§l..._ ..

*0 840° --_ - f f_.__-.i.-._ .. ..cw‘...-_._

T7“3>>1>C

@9i§§2<i§QLa@L@@1emé11@-00- - - 1-.29 .._bove 10.00 b_ut not more than 12.50“ g g ,1 _v 2.00 _l

b9)/!='é. 12_~..50..bl1.l..'F.°l..m_Q.E<#ll1€=1_l1_1.fl_§>Q. .. 2-59.. _ ,'_"’_l'

9

(xiv) Sub-rule (4)(a) of rule 49 of the Principal Rules shall be substituted b)

thefollowing: .(a) “every building shall have minimum side open spaces at ground level

of width at its narrowest past of not less than that indicated hereinafter -_ _ I _ _ _ 2, _ _ _,- _.. -;-477 ._,. .--.-____-__._.._a

Height of building <me"@s> l§l'I§l“a‘i‘lIsSl.‘l‘ii§5i.ZZisiaafietnfiiiéii"'d'*mW"'MM'""""Miiiij Ilsiidéfli “(Sideup,£@Iéj£>jZti";3.'ii§jI.;,_..-e-, _..zLQ.9... - 1 - L90. -Above 8.00 but not more than 1.20 1 ’ 1.20

_ .._v+ ___.J_._._i..._..-,__

st

(xv) Sub-rule (I)(b) of rule 50 of the Principal Rules shall be substituted by the

following:“in calculating the number of parking Spaces as per the norms laid down in

sub-rule (2) hereinafter the covered area shall be the same as the total covered area ofthe building but shall exclude the area of covered parking spaces, if any,"

(xvi) Sub-rule (I)(d) of rule 50 of the Principal Rules shall be substituted by

thefollowing:

Page 6u

Page 7: COMMITTEEREPORT REGARDINGAMMENDMENTOF ... Report... · “No piece of land where a closed, sick or other industry as located or is in operation, shall be used as a site forconstruction

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it 5 Assembly houses like restaurant, Z PM Wfivafléln/W'M_—fi PM

“the open spaces within the plot may be allowed to be utilized for car parkingspaces open to the sky provided that the minimum front, rear and side open spacesprescribed in rule 49 & 51 as the case may be, shall be kept free from parking; “

§

(xvii) Sub-rule (I)(g) of rule 50 of the Principal Rules shall be substituted by

thefollowing:“in calculating the areas of different occupancies in the same building, the areas

of common spaces of any floor, which are included in the calculation of the totalcovered area shall be distributed proportionately amongst the different occupancies;”

(xviii) Sub-rule (I)(h) of rule 50 of the Principal Rules shall be substituted by

thefollowing: r u“for plots in a scheme for Economically Weaker Section and Lower income

Group Housing under Government approved schemes, the parking requirement shallbe as indicated in Rule 54.”

(xix) Sub-rule (I)(i) of rule 50 of the Principal Rulesshall be substituted by

thefollowing:“for plots with means of access of less than 2.40 meters in width, car parking

space may not be provided;"

(xx) Sub-rule (2) of rule 50 of the Principal Rules shall be substituted by the

following: P“(ll The minimum parking requirement shall be as follows-

, . . .. _. ._ . . _. _._i - .MinI@§?i§éi%biEuiremsr1;f.l1 Useofbuilding Covered area NO" N0‘ No"= f f f

(sqmeter) cit Trciick Bciis_upt<> 10 N , i~iii__‘__ Nil , Nil;

. . Beyond 70 for 4A Res'de'“'a' every 100 or part‘ 01 Nil NilQ, ._._ ,, Mu there of l _ __Upt0 so M_fl_Nil i Nil Nil 4,

. . . Beyond 50 for A‘ Commercial/Business every 75 or part O1 N“ NHH_____M_> ____w_ A/___ there of ,

eating house, Bars, Clubs & 5:22/o1f°° °' pa“ 01 Nil NilGymkhana or such other __ i_______________WAssembly like Hotel & Boarding Every 200 or part 01 N" N" ‘

__houses or such other ,,,, ___, __,_____U there (91 ,___”__ g g__gV__,,_y_H__W_____Assembly like Theatre, Motionpicture, City hall, Town hall, tivefggfoo °' pa“ T 01 Nil Nil

_Auditorium or such other _ ( k___i _‘institutional like Hospital & Health Every 100 or part 01 N“ N“care or such other there of__ _____A_ ,,___ _ _____ __-_i.. -

Every 400 or part O1 N" N"

Educational 1 there of ~ "i-M ~~"~i—*-*4Every 1000 or N" 1 N“ O1_ _ __E€l_FU,l1§E9_f _.. ._ -. -._

Pane 7

Page 8: COMMITTEEREPORT REGARDINGAMMENDMENTOF ... Report... · “No piece of land where a closed, sick or other industry as located or is in operation, shall be used as a site forconstruction

_ _ _< _ .__~ .___*,._.._...___A__-_-__.._ 1 __._~_ __ _ .__r ._,_.__ ..___ f

Md-ifiwflwi W P P Every 400 Orpart 017- Nil iindustrial,Storage&Hazardous or there ofg__, __W_such other Every 1000 or .

_.._._.., ....._._ .s_._.s.._..-._,- .P_F£Lt.llelE9f ......-_. ,_...-_-.._i-———’_t.-———

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(xxi) Rule 5I of the Principal Rules shall be substituted by the following:51. Tall building_s (exceeding fourteen and half meters in height);

ln ULB the building height shall not normally be moreithan 14.50meters (fourteen and half). But in the case of any building exceeding 14.50meters in height, the ULB, for reasons to be recorded in writing and with theprevious approval of the State Government with the support of theTechnical Appraisal Committee (TAC) constituted as per sub-rule 8 of thisrule, may sanction such prop0sal(s) as special case if not otherwisecovered by any law for the time being in force. ln such cases the followingspecial rules shall be applicable in addition to other rules under the Act:-(1) no building exceeding 14.5 (fourteen and half) meters height

r shall be allowed on private or public street of less than 15.00 meters inwidth; -

(2) for every category of building referred to in rule 49(2) andexceeding 14.5 (fourteen and half) meters in height shall have a frontopen space of not less than 20% of the height of the building or 6 metersat its narrowest part, whichever is less subject to minimum as specifiedin rule 49(2).

(3) (a) every building exceeding fourteen and half meters but notexceeding 18.0 (eighteen) meters in height shall have a rear openspace at ground along the entire width of the building forming anintegral part of site of a minimum width of five meters;(b) every building exceeding 18.0 (eighteen) meters in height shall havea rear open space at ground along the entire width of the btiilding forming anintegral part of the site of 20% of the height of the btiilding subject to theminimum of five meters;

(4) (a) the miiiimtiin side open space of a btiilding exceeding l~l.5(t'ourteeii- and halt‘) meters but not exceeding l8.(l(eigliteen) meters in height shall be 3

meters and 50 centimeters on either side or more;

(b) the miniinuin side open space of £1 building exceeding eighteenmeters in height shall be 20% of the height of the building subject to theminimtim of four meters on either side; - P(c) in the case of a building of more than 24 meters in depth and notexceeding 18 meters in height one of the side shall be at least 4 meters inwidth;

(5) (a) in case the whole of one side or part of at least two sides of every roomexcepting bath. water-closets and store-room. is not abutting either the front.rear or side open spaces, it shall abut an inner courtyard whose mininitiinwidth shall be 20% of the height of the building or 3 meters. which ever ismore;

(b) for ventilating water closet in bathroom such water closet orbathroom or kitchen or any room not intended for human habitation, ifnot opening on to front, rear, side or interior open space, shall be up toa ventilation shaft, the size of which shall not be less than the valuesgiven below 1

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Height of buildirigm(meters) Area of ventilation Minimum width of shaft___#__ _,_____,,_,____,,_ V ,__,_ shaft (sqgmeters) (meters)Above 14.00 but not more than 6.00 2.4018.00 ‘

,,,A9<&>f,JIf§§§_1l,Iifl‘l,1f§i:W iI:—H,i:Z65:w'. M T2-40 if ?????V“For building of height of more than 14,50 meters in height a mechanicalventilation system shall be installed besides the provision of ventilationshaft;(cl) ifthere be building other than boundary wall of not more than three sides ofacourt yard. the minimum width shall be 20% of the height of the building or 2.50meters whichever is more;

(6) (a) for every building exceeding fourteen and halfmeters in height, the FloorArea Ratio shall be as specified in the table below : _

TABLE

-,, _ _ .,_M§_2it1u.m_,,Eermi§§@l@ Fl<><>r Area Rati<>lFARL_Width of means of Residential Building ‘ 4* Institutional, lAccess (meters) Commercial --- dther zone Business and

gene’ if any other Buildings1_._"A_tgo_ve__>j4.5 to 20.00 ___g__§___>__

.,2»_At2<_>xs3'<5T>5::f T 2-752.75 2.50:

V 3.00 2.75(b) while calculating the floor area under this Chapter. thefollowing shall be excluded namely :-

(i) stair cover not exceeding 2.4 meters in height,(ii) lift machine room as per latest edition of the National Building

code,(iii) roof tanks with their support. the height shall not exceeding

1.8 meters,(iv) chimney, ventilating, air-conditioning and service equipment

attached to the building:Provided thatthe aggregate area of these structures mentioned at (l)to (iv) above shall not exceed one-third area of the roof upon whichthese are erected,(v) the area of covered car parking spaces as may have been

provided for the required number of car parking, spaces inaccordance with rule 50, and for this calculation the arearequired for one car parking space shall be taken as 20 sq.meters inclusive of all circulation spaces.

' (7) for construction of-steel towers, the criteria specified for buildings above 14.5meters in height shall be followed.“(8) The Technical Appraisal Committee (TAC) shall be constituted as provided inrule 51 with following members:- r . ' '

(a) Chief Engineer, UDD - Convener(b) Chief Engineer, PWD(Building) — Member(c) Director, Fire Service - Member(d) Additional General Manager, TSECL — Member T(e) Sr. Architect, PWD — Member(f) Representative from Disaster Management Authority, Agartala — Member(g) Town & Country Planner, TCPO — Member Secretary

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(xxii) Rule 54 of the Principal Rules shall be substituted by thefollowing:“Provisions for buildings constructed under Government agproved,

schemes.-Notwithstanding anything contained elsewhere in these

rules the provision of this chapter shall apply in respect of matters provided therein.in the case of buildings constructed by Governments, or any of the statutory bodiesunder any Government approved scheme, for residential use of persons belongingto Economically Weaker Section (EWS) or Lower Income Group (LlG) or of industrialworkers. . ,,

(2) For plotted development the minimum size of a plot shall be40 square meters and the maximum size of the plot shall not be more than 65 squaremeters.

(3) (a) No building shall be constructed on a plot if the width ofthe means of access to the site is less than 1.8 meters.

(b) No building exceeding 8.0 meters in height shall be allowed on a plot ifthe width of the means of access to the site is less than 2.4 meters.

(4) The maximum permissible ground coverage shall be 75% ofthe area of the plot.)

(5) The maximum height of the building shall be‘14.5 meters.(6) The minimum front open space for a building shall be 1.0 meters.(7) The minimum rear open space for a building shall be 0.8 meter.(8) The buildings may be of the row housing type and the maximum

length of the building in a row shall be 50 meters. After every 50 meters of length ofthe building in a row, there shall be an open space of not less than 2.5 meters inwidth for the entire depth of the building ;

Provided that such open space shall not be necessary if there is astreet or passage at such location, the minimum width of which is 2.5 meters.

(9) No parking space within the plot shall be necessary.(10) ULBs shall adopt pre-approved building plans l layout plans for EWS I

LlG housing for plot size not more than 65 square meters." g

T (xxiii) Sub-rule (3) after sub-rule (2) of rule 55 of the Principal Rules shall be

inserted with thefollowing: V“(3) In case of buildings having parking provision at ground floor, the plinth

height in no case is at a height less than 15 centimeters;

(xxiv) Rule 69 of the Principal Rules shall be substituted by thefollowing:

“Boundary wall.- -No boundary wall shall exceed 2 meter in height above the centerline of the

road abutting to the plot, the solid portion of compound walls shall not exceed 1.5meters in height. The foundation of boundary wall, below ground level, shall notencroach upon any adjacent land outside the plot area."

(xxv) Rule 72 0fthe Principal Rules shall be substituted by thefollowing:“Fire protection.-Every building of more than 12.50 meter height and/or having covered area of

more than 500 sqm shall be provided with adequate means of exit and allarrangement for protection in case of fire in accordance with the provisions containedin the latest version of National Building Code. “as

L Page10

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(xxvi) Rule 79 of the Principal Rules shall be substituted by thefollowing:“No permission for erection, addition to or alteration of any building other than a

building upto 12.50 meter in height and/or having covered area upto 500 sqm shall begranted unless the ULB in consultation with the Director, Fire Service of theGovernment of Tripura or any officer specially empowered by the Director, Fire Servicefor the purpose is satisfied about the provisions or means of exits and about thearrangements for protection against fire proposed for the building."

(xxvii) Rule 81 of the Principal Rules shall be substituted by thefollowing:

“Structural design.-

(l) Structural design and safetyFor any building under the jurisdiction of these regulations structural designlretrofitting shall only be carried out by an empanelled Structural Engineer.Proof checking of various designs/reports shall be carried out by competentauthority as per Table at clause (e) below wherever applicable.

(a) Additional provisions in building regulations/bye-laws for natural hazardprone areas

Generally, the structural design of foundations, elements of masonry, timber,plain concrete. reinforced concrete, pre-stressed concrete and structural steelshall confirm to the provisions of Part 6: Structural Design -Section I Loads, Forces and EffectsSection 2 Soils and Foundations.Section ~- 3 Timber and Bamboos.Section 4 Masonry,Section 5 Concrete &Section 6 SteelSection - 7 prefabrieation System, building and Mixed/ Composite Construction ofNational Building Code of lndia (NBC ). taking into consideration the IndianStandards as amended upto date as given below: _For General Structural Safety , AI) IS: 456:2000 “Code of Practice for Plain and Reinforced Concrete.”

2) IS: 800-2007 “Code of Practice for General Construction in Steel.”

3) IS: 801-I975 “Code of Practice for Use of Cold Formal Light Gauge SteelStructural Members in General Building Construction.”

4) IS 875 (Part 2): I987 Design loads (other than earthquake) for buildings andstructures Part 2 Imposed Loads. .

(Reference of Table 4.1- “Occupant Load" may be considered for design load)

5) IS 875 (Part 3): I987 Design loads (other than earthquake) for buildings andstructures Part 3 Wind Loads.

6) IS 875 (Part 4): I987 Design loads (other than earthquake) for buildings andstructures Part 4 Snow Loads. ’

7) IS 875 (Pan S): I987 Design loads (other than earthquake) for buildings and

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structures Part 5 special loads and load combination. .

8) IS: 883:l994 “Code of Practice for Design of Structural Timber in Building."

9) IS: 1904:1986 (R 2005) “Code of Practice for Design of Structural Safety ofBuildings: Foundation” '

10) IS: 1905:1987 (R 2005) “Code of Practice for Design of Structural Safety ofBuildings: Masonry Walls” n .

I 1) IS 2911 (Part 1): Section 1: 2010 “Code of Practice for design and Constructionof Pile Foundation Section 1

Part 1: Section 2 Bored Cast-in-situ PilesPart 1: Section 3 Driven Precast Concrete PilesPart 1: Section 4 Bored Precast Concrete PilesPart 2: Timber PilesPart 3: Under Reamed PilesPart 4: Load Test on Piles

For Cyclone/Wind Storm Protection

12) IS 875 (3): 1987 “Code ofPractice for Design Loads (other than Earthquake)for Buildings and Structures, Part 3, Wind Loads"

13) Guidelines (Based on IS 875 (3)-1987) for improving the Cyclonic Resistanceof Low rise houses and other building.

For Earthquake Protection

I4) IS: 1893 (Part I)- 2002 “Criteria for Earthquake Resistant Design of Structures(Fifth Revision)”

I5) IS: 13920-I993 Ductile Detailing of Reinforced Concrete Structures subjecteto Seismic Forces -~ Code of Practice”

16) IS: 4326-2013 "Earthquake Resistant Design and Construction of Buildings ~-Code of Practice (Second Revision)”

17) IS: 13828-1993 “Improving Earthquake Resistance of Low Strength MasonryBuildings — Guidelines” .- .

18) IS: 13827-1993 “Improving Earthquake Resistance of Earthen Buildings-Guidelines” '

I9) IS: 13935-2009 “Seismic Evaluation, Repair and Seismic Strengthening ofBuildings — Guidelines” "

For Protection of Landslide Hazard20) IS 14458 (Part 1): 1998 Guidelines for retaining wall for hill area: Part l

Selection of type of wall.

21) IS 14458 (Part 2): 1997 Guidelines for retaining wall for hill area: Part 2Design of retaining/breast walls.

22) IS 14458 (Part 3): 1998 Guidelines for retaining wall for hill area: Part 3Construction of dry stone walls.

23) IS 14496 (Part 2): 1998 Guidelines for preparation of landslide -- Hazard g

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zonation maps in mountainous terrains: Part 2 Macro-Zonation.

Note: Whenever an Indian Standard including those referred in the NationalBuilding Code or the National Building Code is referred, the latest revisionof the same shall be followed except specific criteria if any, mentionedabove against that code.

(b) Structural Design Basis Report (SDBR)In compliance of the design with the above Indian Standard, the empanelledStructural Engineer will submit a structural design basis report in the Proformaattached herewith covering the essential safety requirements specified in the standard.

The “Structural Design Basis Report (SDBR)” consists of four parts -. Part l: General Information / Data _

Part 2: Load bearing Masonry Buildings :Part 3: Reinforced Concrete BuildingsPart 4: Steel Buildings -.

i) Drawings and Documents to be submitted for approval of appropriateauthorities shall include SIJBR as detailed bow:Part 1: Completed iPart 2: (if applicable) -- completedPart 3: (if applicable) — undertaking that completed Part 3 will be submittedbefore commencement of construction.Part 4: (if applicable) - undertaking that completed Part 4 will be submittedbefore commencement of construction.

ii) SDBR as detailed below shall be submitted to the appropriate authority assoon as design of foundation is completed, but not later than one month priorto commencement of construction.Part 1: CompletedPart 2: Part 3: Part 4 (if applicable) Completed

(c) Seismic strengthening /retrofittingPrior to seismic strengthening /retrofitting of any existing structure, evaluationof the existing structure as regards structural vulnerability in the specifiedwind/seismic hazard zone shall be carried out. If as per the evaluation theseismic resistance is assessed to be less than the specified minimum seismicresistance as given in the note below, action will be initiated to carry out theupgrading of the seismic resistance of the building as per applicable standardguidelines. '

Note:1. For masonry building reference shall be made to IS 4326 and IS 139352. For concrete buildings and structures reference shall be made to IS 15988: 2013 Seismic

. evaluation and strengthening ofexisting RCC buildings. _ ' . -

(d) Building with Soft Storey 'In case buildings with a flexible storeys, such as the ground storey consisting

of open spaces for parking that is“Still building” or any other storey with open halls,special arrangements are to be made to increase the lateral strength and stiffness of thesoft/open storey such as Steel bracingl Shear walls /Brick infills between columns.Dynamic analysis of building is to be carried out including the strength and stiffnesseffects of infills and inelastic deformations in the members. particularly; those in the

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soft storey and the structural members are to be designed accordingly. Alternatively.the following design criteria are to be adopted after carrying out the earthquakeanalysis, neglecting the effect of infill walls in other storeys: - R

The column and beams of the soft storey shall be designed for 2.5 times thestorey shears and moments, calculated under seismic loads specified in theother relevant clauses: or _

b. Besides the columns designed and detailed for the calculated storey shears andmoments, shears walls shall be placed symmetrically in both directions of thebuilding as far away from the centre of the building as feasible; to be designedexclusively for 1.5 times the lateral storey shear force calculated as before. Fordetails ofdesign and provisions, IS 1893, Pan 1 shall be referred.

21.

(e) Review of structural designi) The Competent Authority shall review and suggest addendum to the certificateor a new certificate in case of subsequent changes in structural design.

iii) Table below gives requirements of empanelled Structural Engineer fordifferent seismic zones namely Ill. IV and V and for structures of differentcomplexities. ~

iv) In seismic Zone ~lI, buildings & structures greater than 40m in height willrequire proof checking as per details at Sl. No. 3 of Table below.

Proof Checking Requirements for Structural Design

la SI. i I Type of Structure Submission from To be Proofempanelled Structural Checked

o-__,_En_gin¢@r._._..i.,...,. _r..l__,.,,L__-_..-_SDBR* Not to be

.._-i-L-_,..-_._LL,,-,__-,.@_<2s_1§i=L._§E;___,MwW“l£Efl§EELPreliminary design To be checked

Z LLLoad Bearing Buildingsupto three storeysBuilding upto sevenstoreys (R.C.C/Steel_t1r_;=1I11.<;=s1_-<;!r2s_I2@_>_,Building greater thanseven storey (R.C.C/Steelframed structure)

v1_.,_o___,.,.-

2 ..__ ~

______._._.._. _,_ ___....._.A ____A_.. - _ .__ __ __L__________.____ _ ______i _.,,_

_§QB_B.-L_ _,_____.. . .' To media.g Preliminary design _g _g_i To be checked MDetailed structural design To be checkedand struct_ural_d_rayv_'_ir_1_gs/g__4_____'___~ ___SDBR -' To be checked"r?rEiTf1E{5£§2i駧H:::;:To”i5?£Hé6;€3:Detailed structural design l To be checked

___ L _andStru¢tur§ld_r§W_ins§_,- L, L _,_ ’_'4__

Special Stmctures4 ___

* SDBR — Structural Design Basis ReportNotes:l. Table 4.l may be referred for Occupant Load Live load for different building types.2. At the preliminary proposal stage of a project, the objective is to undertake feasibility study

comparison of a number of possible alternatives of structural schemes and determine the mostcost effective one. detailed structural calculations are jnot necessary for each alternativescheme. However, it is conservative assumption it is possible to derive simplified calculationsfor analysis and design. This is called “Preliminary or appropriate analysis. and design"

After the most cost effective scheme is selected and signed—off by the Client, the detailedcalculations are performed on the selected scheme to determine the precise structural members and

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composition (size, di_mension and stress behavior), and this is called the “Detailed structuraldesign”.

In the aforesaid , the design of structural members is Q/pically assumed to account for all the stressloads identified from section xx to be applicable in the given project3. Special structure means large span structures as stadium, assembly halls, or tall structures such

as water tanks. TV tower, chimney, etc.

(f) Certification regarding structural safety in design 'Empanelled Structural Engineer shall give a certificate of structuralsafety of design as per standard proforma.

(g) Constructional safety

(i) SupervisionAll construction except load bearing building upto 3 storeys shall becarried out under supervision under empanelled Construction Engineer forvarious seismic zones.

(ii) Certification of structural safety in construction IEmpanelled Construction Engineer shall give a certificate of structuralsafety of construction at the time of completion.

(h) Quality control and inspectionAll material and workmanship shall be of good quality conforminggenerally to accepted standards of Public Works Department and Indianstandard specification and codes as included in part-V Building Materialsand Part-VII Construction practices and safety of National Building CodeOf India.

(i) InspectionAll the construction for high-rise buildings higher than seven storeys,public building and special structures shall be carried out under qualityinspection program prepared and implemented under the empanelledQuality Auditor in seismic zones. .

(ii) Certification of safety in quality of constructionEmpanelled Quality Auditor shall give a certificate of quality control.Quality Inspection Programme to be carried on the site shall be worked outby empanelled Quality Auditor in consultation with the owner, builder.

Note: Section (g) and (h) shall not be applicable government buildings that are designed and constructed underthe supervision of in house architect! engineer.

(I) Control and signage & outdoor display structures, cellphone towers andtelephone towers. ,Following provisions shall apply for telecommunication infrastructure-Ia) Location: The Telecommunication Infrastructure shall be either placed

on the building roof tops or on the ground or open space within thepremises subject to other regulations.

b) Type of Structurei) Steel fabricated towers or antennae’s on M.S. pole.ii) Pre-fabricated shelters of fiber glass or P.V.C. on the buildingroof top/ terrace for equipment.

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_.

iii) Masonry Structure/ Shelter on the ground for equipment.iv) D.G set with sound proof cover to reduce the noise level.

c) Requirement:i) Every applicant has to.obtain/ procure the necessary permission

from the “Standing Advisory Committee on Radio FrequencyAllocation” (SACFA) issued‘by Ministry of Telecommunication.

ii) Every applicant will have to produce the structural safety &stability certificate for the tower as well as the building from theempanelled Structural Engineer which shall be the liability of bothowner and empanelled Structural Engineer.

iii) Applicant has to produce/ submit plans of structure to be erected.d) Projection: No pager and/ or Telephone tower shall project beyond the

existing building line of the building on which it is erected in anydirection.

(2) A Structural requirements of low income housingNotwithstanding anything contained herein, for the structural safety andservices for development of low income housing, the relevant provisionof applicable IS: 8888 part l shall be enforced along with Annex C of part3 NBC.

(3) Alternative Materials, Methods of Design andjConstruction and TestsThe provision of the Bye-Laws are not intended to prevent the use of anymaterial or method of design or construction not specifically prescribed bythe bye-law provided any such alternative has been approved. The buildingmaterials approved by B.I.S. or any statutory body will form part of theapproved building material and technology as part of the Bye-Laws.The Authority shall promote and encourage use of Pre-fabricated factorymade building components for medium to large scale projects that havesignificant impact. The use of ready mix concrete (RMC) shall also beencouraged for in-situ concrete constructions.”

(4) While submitting the plan for Ground Floor / Basement floor of the building,the plan should clearly specify the height of the building for which foundationof the building has been designed and all relevant provisions of the Rulesrelated to that designed -height of the building should be followed from thebeginning.

(xxviii) Sub-rule (3) of rule 85 of the Principal Rules shall be substituted by

thefollowing: .“(3) Electrical installation in respect of any building exceeding 14.5

(fourteen point five) meters in height shall conform to the provisions of the latestedition of National Electrical Code."

(xxix) Rule I05 of the Principal Rules shall be substituted by thefollowing:“Green buildings and Sustainability_provisions:-

(1) All buildings on various plot sizes above 500 sq.m. shall comply with thegreen norms and conform to the requirements mandatory for sanction.(2) Provisions and ApplicabilityThe green building provisions on various plot sizes are indicated in the tablebelow:Provisions and applicability for various plot sizes ( Residential and Non-

Residential)

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Plot Applicable Provisions for I Provisions for sanctionCatego plot sanction as sub rule as sub rule (3)

ry area(sq.m) (3) (Non-Residential), . , ,,_,__l________,,,__, L__,,__,,, __i_. , , (Residential) ‘_ iby M g _l_,W,_WAlJj>_'t_q_5_QQ,,, W________j Nil, jg Nill ll 500 to 1000 1(a),1(c), 2(b), 3(c);"W'1(a),1(c), 2(a), 20>), 3(¢),

4(2) 4(2)1000 to 3000 1(a),1(c),1(d),2(a),2(b 1(a),1(c),1(d),2(a),2(b),-. .-..-.-__._ _ ).3(b).3(¢).4(a) 3(§).3@)/lie)lll Above3000 1(a),1(b),1(c),1(d),2(a 1(a),1(b),1(c),1(d),2(a),

).2(b).3(a).3(b>.3(¢).4( 2(b).3(a).3(b),3(<=>.4(a).. .. -__z_______---L___..., - . i?L‘flQL_.-...,_.,-_i__.______ 40>)(3) Provisions for Sanction _ -

1. Water Conservation and Managementa) Rain Water Harvestingb) Low Water Consumption Plumbing Fixturesc) Waste Water Recycle and Reused) Reduction of Hardscape D

2. Solar Energy Utilizationa) Installation of Solar Photovoltaic Panelsb) Installation of Solar assisted Water Heating Systems

3. Energy Efficiency (Concept of passive solar design of buildings)a) Low Energy Consumption Lighting Fixtures (ElectricalAppliances- BEE Star and Energy Efficient Appliances)b) Energy Efficiency in HVAC Systems.c) Lighting of Common areas by Solar Energy! LED devices.

4. Waste Managementa) Segregation of Wasteb) Organic Waste Management

ln case owners of properties desire to procure green building rating from one or morerating bodies, they may suitably incorporate any other provisions, if required.”

(.\;rx) Rule I06 of the Principal Rules shall be substituted by thefollowing:

“Minimum provisions for Differntly-abled, Elderly and Children requiredin various types of buildingg.

(1) Applicability

These regulations shall be applicable to all buildings and facilities used by thepublic such as educational, institutional, assembly, commercial, business, mercantilebuildings and group housing constructed on plots having an area of more than 2000sq.m. It shall not apply to private residential buildings.

(2) Guidelines and provisionsProvisions in the following guidelines shall apply I .1. "Guidelines and Space Standards for Barrier Free Built Environment for

Disabled and Elderly Persons (I998). Central Public Works Department, Gol.2. “Manual on Barrier Free Environment (2002), O/o the Chief

Commissioner for Persons with Disabilities, Ministry of Urban Development. Gol.3. “National Building Code (2005). Bureau of Indian Standards.

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4. “National Policy for Persons with Disabilities". (2006), Ministry oSocial Justice and Empowerment, Gol. t

5. “Harmonized Guidelines and Space Standards for Barrier Free BuiltEnvironment for Persons with Disabilities and Elderly Persons", (Draft 2014).Ministry of Urban Development, Gol.

(3) Types of buildings to adopt barrier free guidelines(a) Buildings to be designed for Ambulant Disabled PeopleHigher Secondary School, Conference Hall, Dance Halls, Youth Centers,

Youth Clubs, Sport Centers, Sport Pavilions, Boar Club Houses, Ice"Rinks, BowlingCenters, Swimming Pools, Police Stations, Law Courts, Courts Houses, SportStadiums, Theaters, Concrete Halls, Cinemas, Auditoria. Small Officers (themaximum plinth area 1400 sq.mt.) Snack Bars, Cafes and banqueting rooms (forcapacity above 50 dinners).

Note: i

a. in sport stadiums provisions shall be made for non-ambulant spectatorstsmallwheel-chair).

b. @ l:l000 up to l0,000 spectators and @ l:2000 for spectators above l(),000.c. in Theaters, Concert Halls, Cinemas and Auditoria provisions shall be made for

non-ambulant spectators (Small Wheel Chairs) @ l/250 up to l000 spectatorsand l/5000 for spectators above i000.

(b) Buildings to be designed for Non-Ambulant Disabled People.

Schools for differently abled and all other buildings and along with Botanicalgardens, Religious Buildings, Elderly People Clubs, Village Halls, Day Centers.Junior Training Centers, Post Offices, Banks, Dispensaries, Railway Stations. Shops.Super Markets, and Departmental Stores.

Note: Large wheel chair criteria shall be applicable on ground floors of the followingbuilding, post offices. banks, dispensaries, railway station. shops. supermarkets, and departmentalSlIOi'8S.

(c) Buildings to be designed for Non-Ambulant People (Using small wheel

chairs) APublic lavatories in Tourist Sports, Clubs Motels. Professional and Scientific

Institution, Museum, Art Galleries. Public Libraries, Laborites. Universities. Collegefor further Education, Teachers Training Colleges. Technical Colleges, ExhibitionHalls, Dentist Surgeries, Administrative Department of the Hospitals. ServiceStations, Car Parking, Buildings, Airports Terminals. Bus -Terminals, Factories.Employing differently abled for sedentary works, Large Offices. (with plinth areaabode 1400 sq.mt.), Tax Offices, Passport Offices, Pension Offices, and LabourOffices, Cafes, Banqueting Rooms and Snack Bars (For capacity above 100 dinners).

(d) Site development .~Level of the roads, access paths and parking areas shall be described in the

plan along with specification of the materials. ‘(i) Access Path / Walk WayAccess path from plot entry and surface parking to building entrance shall be

minimum of 1800 mm wide having even surface without any -steps. Slope, if any,shall not have gradient greater than 5%. Selection of floor material shall be madesuitably to attract or to guide visually impaired persons (limited to coloured floormaterial whose colour and brightness is conspicuously different from that of thesurrounding floor material or the material that emits different sound to guide visuallyimpaired persons; hereinafter referred “o” as “guiding floor material”. Finishes shall

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have a non-slip surface with a texture traversable by a wheel chair. Kerbs whereverprovided should blend to a common level.

(ii) Parking A

For parking of vehicles of differently-abled people, the following provisionsshall apply:

a) Surface parking for two car spaces shall be provided near entrance for thephysically differently-abled persons with maximum travel distance of 30.0 m. frombuilding entrance.

b) The width of parking bay shall be minimum 3.6 meter.c) The information stating that the space is reserved for wheel chair users

shall be conspicuously displayed. _i d) Guiding floor materials shall be provided or a device, which guidesvisually impaired persons with audible signals, or other devices, which serves thesame purpose, shall be provided. -

(4) Building requirementsThe specified facilities in buildings for differently abled persons shall be as

follows:(a) Approach to plinth level

Every building should have at least one entrance accessible to the differentlyabled and shall be indicated by proper signage. This entrance shall be approachedthrough a ramp together with the stepped entry.

i. Ramped Approach: Ramp shall be finished with non-slip material to enterthe building. Minimum width of ramp shall be 1800mm with maximum gradient l;12.Length of ramp shall not exceed 9.0 meter having 800mm high hand rail on both sidesextending 300mm beyond top and bottom of the ramp. Minimum gap from theadjacent wall to the hand rail shall be 50mm.

ii. Stepped Approach: For stepped approach size of tread shall not be lessthan 300mm and maximum riser shall be 150mm. Provision of 800mm high hand railon both sides of the stepped approach similar to the ramped approach.

iii. Exit/Entrance Door: Minimum & clear opening of the entrance doorshall be 900mm and it shall not be provided with a step that obstructs the passage of awheel chair user. Threshold shall not be raised more than 12mm.

iv. Entrance Landing: Entrance landing shall be provided adjacent to rampwith the minimum dimension 1800mm x 2000mm. The entrance landing that adjoinsthe top end of a slope shall be provided with floor materials to attract the attention ofvisually impaired person”s (limited to coloured floor material whose colour andbrightness is conspicuously different from that of the surrounding floor material or thematerial that emits different sound to guide visually impaired persons. Finishes shallhave a non-slip surface with a texture traversable by a wheel chair, Kerbs whereverprovided should blend to a common level. i ' '

(b) Corridor connecting the entrance/exit for the differently abledThe Corridor connecting the entrance / exit for differently abled leading

directlyoutdoors to a» place where information concerning the overall use of the

specified building can be provided to visually impaired pe3 rsons either by a person orby signs. shall be provided as follows:

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i) Guiding floor materials’ shall be provided or device that emits sound toguide

visually impaired persons.ii) The minimum width shall be 1500mm.iii) In case there is a difference of level. slope ways shall be provided with a ~

slope of ~l:l2.

iv) Handrails shall be provided forramps/slope ways.(5) Stair-ways e

One of the stir-ways ~ near the entrance / exist for the differently abled shallhave the following provisions:

i) The minimum width shall be 1350 mm.ii) Height of the riser shall not be more than 150 mm and width of the tread

300 mm.The steps shall not have abrupt (square) nosing.

iii) Maximum number of risers on a flight shall be limited to 12.iv) Handrails shall be provided on both sides and shall extend 300 mm on the

top and bottom of each flight of steps. -(6) Lifts .

Wherever lift is required as per bye-laws, provision of at least one lift shall bemade for the wheel chair user with the following cage dimensions of lilirecommended for passenger lift of 13 person’s capacity of NBC. BIS. Desirable Liftsize are:

Clear internal width 1100 mm.

Clear intemal depth 2000 mm.

Entrance door width 900 mm.a) A hand rail not less than 600mm long at 1000mm above floor level shall be

fixedadjacent to the control panel.

b) The lift lobby shall be of an inside measurement of 1800 mm x 2000 mmor more. .

c) The time of an automatically closing door should be minimum 5 secondsand the '

closing speed should not exceed 0.25 m/ sec.d) The interior of the cage shall be provided with adevice that audibly

indicates thefloor, the cage has reached indicates that the door of the cage of

entrance/exit is _.either open or closed.

e) Graphic/Braille signage, as per the Harmonized Guidelines, shall beprovided in

the lift lobby.(7) Toilets .

One special W.C. in a set of toilets shall be provided for the use of differently __abled with essential provision of washbasin near the entrance for the differently abled.

a) The minimum size shall be 1500 mm x 1750 mm. V

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b) Minimum clear opening of the door shall be 900mm and the door shall

swing out. i

c) Suitable arrangement of vertical/horizontal‘handrails with 50mm clearancefrom

wall shall be made in the toilet.d) The W.C. seat shall be 500 mm. from the door.(a) Provision of W.Cs in buildings without lift:

Provision of special W.C. shall be made on all floors for buildings designedfor ambulant disabled persons. For buildings designed for non-ambulant disabledspecial W.C. shall be provided at Ground Floor. Size of W.C. shall depend on the typeof wheel chair used by the disabled.

(b) Provisions of W.Cs in buildings with lift i V

Provision of Special W.C. shall be made on all floors. Size will depend on thecategory of disabled for whom it has been provided.

(c) Toilet Details: For Toilets Designed for Ambulant Disabled

i) The minimum size of W.C. shall; be 1075 x l650}mm with a minimumdepth of 1450 mm from entry door 900 mm.

ii) Long handrail on the side closer to W.C. with a clear width between thehandrails shall be 900 mm and height of handrails shall be 800 mm from floor level.

iii) Minimum size of the clear door opening shall be 780 mm.(d) ‘For Toilets Designed for Non-Ambulant Disabled Small Wheel

Chair: V

The minimum size of W.C. shall be 1350 x 1500 mm with minimum depth of1500 mm from entry door. 900 mm long handrail on the side closer to W.C. shall beprovided. To provide movement space for wheel chair, W.C. seat shall be fixedtowards one side to the opposite adjacent wall. The centerline of W.C. from theadjacent wall shall be 400 mm and minimum 950 mm from the other wall. Minimumsize of the clear door opening shall be 780 mm.

(e) For Toilets Designed for Non-Ambulant Disabled Using LargeWheel Chair: »

The minimum size of W.C. shall be 1500 x 1750 mm with minimum depth of1750 mm for entry door. 900 mm long handrail on the side closer to W.C. shall beprovided. To provide movement space for wheel chair, W.C. seat shall be fixedtowards one side to the opposite adjacent wall. The centerline of W.C. from theadjacent wall shall be 400 mm and a minimum of 1100 mm from the other wall.Minimum size of clear door opening shall be 860 mm.

(8) Designing for ChildrenIn the buildings meant for the pre-dominant use of the children, it wil be

necessary to suitably alter the height of the handrail and other fittings & fixures etc.Note ; Guiding/ Warning Floor Material: The floor material to guide or warm

the visually impaired persons with a change of colour or material texture and easilydistinguishable from the rest of the surrounding floor materials. The material withdeferent texture gives audible signals with sensory waming when a person moves onthis surface with walking stick. The guiding / warning floor material is meant to givethe directional effect or warm a person at criteria places. It should be provided in thefollowing areas:

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a. The access path to the building and to the parking area.b. The landing lobby towards the information board, reception. lifts

staircases and toilets.c. Immediately at the beginning / end of walkway where there is a

vehicular traffic.d. At the location abruptly changing in level or beginning /end of a ramp.e. Immediately in front of an entrance /exit and the landing.(9) Drinking Water:Suitable provision of drinking water shall be made for the differently abled

near the special toilet provided for them. -(10) Refuge: 'An alternative to immediate evaluation of a building via staircases and/ or lifts

is the movement of disabled persons to areas of safety within a building. If possible,they could remain there until the fire is controlled and extinguished or until rescuedby the fire fighters.

a) lt is useful to have provisions of a refuge area. usually at the fireprotected stair landing on each floor that can safely hold one or two_ wheelchairs.

b) Hand Doorways with clear opening width of 900 mm and regularcompliance

c) Have an alarm switch installed between 900 mm and 1200 mm from floorlevel. I

A (11) Proper signagea) appropriate identification of specific facilities within a building for the

differently abled persons should be done with proper signals.b) Visually impaired persons make use of other senses such as hearing and

touch to compensate for the lack of vision, whereas visual signals benefit those withhearing disabilities. Signs should be designed and located so that they are easilylegible by using suitable letter size (not less than 20 mm high)

c) For visually impaired persons. information board in brail should be installedon the wall at a suitable height and it should be possible to approach them closely.

d) To ensure safe walking, there should not be any protruding sign whichcreates obstruction in walking.

e) Public Address system may also be provided in busy public areas.f) The symbols /information should be in contrasting colour and properly

illuminated because people with limited vision may be able to differentiate amongstprimary colours. . '

g) Internal Symbol Mark for wheel chair be installed in a lift. toilet, staircase,parking areas, etc., that have been provided for the differently abled. '

(12) Public Building regulationsIn case of design regulations in public buildings (excluding domestic

buildings), provisions for differently-abled shall be adopted as below:

To Provide Facilitates in the Public Building Excluding Domestic IBuildings for

Differently-abled‘ Personsa. Definitions

Ambulant Disabled People: Disabled who are able to walk but who maydepend on prostheses (Artificial Limbs) orthoses (Calipers), Sticks, Crutches orWalking aids. _ _

Non-Ambulant Disabled People: Disabled people impamnents thatconfine them to wheelchair.

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Wheel Chair: Chair used by disabled people for mobility.

i) Size of small wheel chair: 750 x 1050 mmii) Size of large wheel chair: 800 x 1500 nfm

b. ScopeThese bye-laws are applicable to public buildings and exclude domestic

building.Building which shall provide access to ambulant disable and Non-

Ambulant disabled are listed below. Distinction is made for buildings to be designedfor the use of large wheel chairs and small wheel chairs.

c. Building to be designed for Ambulant Disabled PeopleHigher Secondary School, Conference Hall, _Dance Halls, Youth Centers,

Youth Clubs. Sport centers, Sport Pavilions, Boat Club Houses, lee Rinks, BowlingCenters, Swimming pools, Police Stations, Law Courts, Courts Houses, SportStadium, Theaters, Concert Hall. Cinemas, Auditorias, Small Offices ( themaximum plinth area 1400 sq. mt) Snack Bars, Cafes and banqueting rooms (forcapacity above 50 dinners)

Note:i) ln sport stadiums provisions shall be made for non-ambulant ‘spectators (small wheel

chair)ii) @ 121000 up to 10,000 spectators and @ 112000 for spectators above 10,000.iii) In Theaters, Concert Halls, Cinemas and Auditoria provisions shall be made for non-

ambulant spectators (Small Wheel Chairs) @ 1/ 250 up to 1000 spectators and 1/ 500 for spectatorsabove 1000.

d. Building to be designed for Non-Ambulant Disabled People:Schools for physically handicapped, cremation, buildings as mentioned in 3,

Botanical Garden, Religious Buildings. Old People Clubs, Village Halls, DayCenters, Junior Training Center, Post Offices, Banks, Dispensaries, Railway stations,Shops. Super Markets, and Departmental Stores.

Notes: Large Wheel Chair Criteria shall be applicable on ground floors of the followingbuilding. Post offices, banks, dispensaries, railway stations. shops, Supermarkets and departmentalstores.

e. Building to be designed for Non-Ambulant People (Using Small WheelChairs)

Public lavatories in Tourist Sports, Clubs Motels, Professional and ScientificInstitution, Museum, Art Galleries, Public Libraries, Laborites, Universities, Collagefor further Education, Teachers Training Collages, Technical Collages, ExhibitionHalls Dentist Surgeries, Administrative Department of the Hospitals, Service Stations,Car Parking, Buildings Airports Terminals, Bus Terminals, Factories EmployingHandicapped for sedentary works, Large Offices, (With Plinth area abode 1400 sq.mt), Tax Offices, Passport Offices, and Labour Offices, Cafes, Banqueting Roomsand Snack Bars (For Capacity Above 100 dinners).

f. Buildings Requirements:All Building requirements for building projects proposed under this category

shall be conforming to Annex D, Part 3 of NBC.” '

(xxxi) Rule I07 of the Principal Rules shall be substituted by thefollowing:

“Roof top solar energy installation.

Rooftop photovoltaic power station, or rooftop PV system, is a photovoltaicsystem that has its electricity —generating solar panels mounted on the rooftop of any

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building. The various components of such a system include photovoltaic modules,mounting systems. cables, solar inverters and other electrical accessories. Rooftop PVsystems are faster than other types of renewable power plants. They are clean. quiet.and visually unobtrusive. Table below stipulates the Nonns for Roof Top solar PVInstallation- ‘ *

_ N(ll_‘_ll1Sf0l' R0t§_:l‘opSolar PV l[l§ll§ll8tl0Il and generation _____ .Sl. Category of Area standards _ Generation requirement* Il

_ No. J buildings/area j H _ .1 Plotted Housing Plot size of 500 Minimum 5% of connectedl

A sqmt and above load or 20W/sqft for“available roof space “**.

L Mg W whicheverisless.2 Group Housing All proposals, as Minimum 5% of connected 1

per Group load or 20W/sqft forHousing Norms “available roof space “.

g_g _ “whichever is less. gV Educational Plot size of 500 Minimum 5% of connecte

Institutional sqmt and above load or 20 W/ sqft foCommercial “available roof space". iIndustrial whichever is less.

;i

OO\lQ\U1-l>L»J

-1Q-i

MercantileRecreational g _“_ #4 Mg;g__g__g___M_A___0_g__

*Area provisions on roof top shall be @ 12sqmt per 1KWp, as suggested by Ministryof New and renewable Energy.

** “available rood area” = 70% of the total roof size. considering 30 % areareserved for residents’ amenities."

(xxxii) Rule I ll) of the Principal Rules shall be substituted by thefollowing:

“Provision for rainwater harvesting and wastewater recycling:_-

Lg) 5 Rain Water Harvesting: - .(1) The RWH systemThe harvesting of rainwater simply involves the collection of water from

surfaces on which rain falls, and subsequently storing this water for use. Therainwater collected can be stored for direct use or can be recharged into theunderground aquifers. In scientific terms water harvesting (broadly) refers locollection and storage of rainwater from the rooftops. This also restricts evaporationand seepage into building foundations. All building having plinth area not less than200 sq.m., while submitting the building plans for sanction, shall mandatorily includethe complete proposal ofrainwater harvesting.

A rainwater harvesting system consists of:i. Roof catchmentii. Guttersiii. Down pipesiv. Rain water/ Storm water drains

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v. Filter chambervi. Storage Tanks/ Pits/ sumps, i -vii. Ground Water recharge structures like pit, tube well or combination of

above structure.

(2) Rainwater harvesting techniques:There are two main techniques of rain water harvestings. They are Storage of

rainwater on surface for future use and Recharge to ground water.

The technical aspects and options of Rainwater harvesting are as follows:The storage of rain water on surface is a traditional technique and the

structures used were underground tanks, ponds. check dams, weirs etc. Recharge toground water is a new concept of rain water harvesting and the structures generallyused are:-

1.

i. Pits: Recharge Pits are constructed for recharging the shallow aquifer. Theseare constructed 1 to 2m wide and to 3m deep which are back filled with boulders,gravels. coarse sand.

ii. Trenches: These are constructed when the permeable steam is available atshallow depth. Trench may be 0.5 to 1m. wide and 1 to 1.5m. deep and 10 to 20mlong depending up availability of water. These are back filled with filler materials.

iii. Dug wells: Existing dug wells may be utilized as recharge structure andwater should pass through filter media before putting into dug well.

iv. Hand pumps: The Existing hand pumps may be used for recharging theshallow/ deep aquifer. if the availability of water is limited. Water should passthrough filter media before diverting it into hand pumps.

v. Recharge wells: Recharge wells of 100 to 300 mm. diameter are generallyconstructed for recharging the deeper aquifer and water is passed through filter mediato avoid choking of recharge wells. .

vi. Recharge Shafts: For recharging the shallow aquifer which are locatedbelow clayey surface, recharge shafts of 0.5 to 3m.diameter and 10 to 15 m. deep areconstructed and back filled with boulders, gravels & coarse sand.

vii. Lateral shafts with bore wells: For recharging the upper as well asdeeper aquifers lateral shafts of 1.5 to 2 m. wide & 10 to 30 m. long depending uponavailability of water with one or two bore wells are constructed. The lateral shafts areback filled with boulders, gravels & coarse sand.

viii. Spreading techniques: When permeable strata from top then thistechnique used. Spread the water in streamsfNalas by making check dams, nala bunds,cement plugs, gabion structures or a percolation pond may be constructed.

(3) Harvesting provisions in various Building categories:All building in a city contribute to the rain water runoff during the monsoon

and hence such runoffcan be harvested for water reuse/ recharge.

Pafle

Page 26: COMMITTEEREPORT REGARDINGAMMENDMENTOF ... Report... · “No piece of land where a closed, sick or other industry as located or is in operation, shall be used as a site forconstruction

The mandatory provision of rainwater harvesting in various building types areas follows:

Provision for Rainwater harvesting by building types m _

Use a reaCategoryl P Plinth Provisions to be made I Other conditions

of ‘ '

New All sizesProposals

i 11

.-._g.__H4

i_________i_i_..__.___m._ _ __ . _.a._i_._._.,...L W _, __,i.__..__ .. ,__.____ _, .__._.A_ _ ______ . _. __l....__ H...’ ___

Group Housing_>__M_ _g H __ _ g 7 W _Y__g I ‘ ___v

hall have emphasis onoth storage and reuse.

'-I

‘_“”l 0-U,=

i) Construction of rain water Should indicate the system. , lHarvesting Structure.

ii) Concrete paving to bavoided and permeablmaterials are to be used for al

Z . i______s...-L.___or

Proposals

g Public and semi__p_ublic buildingsAll Allsizes | i

Harvesting structure an

_..n>o> gt/J

snizatkin S §_cE§;._-._..___)Shall have rain Waterl Shall have emphasis o

d l both storage and reuse.storage 1ii)ASh_al|>have Rechargefits __F.Ev,

:1ere?

of Strom Water DrainagRain Water Harvesti g

tructure and Rechargingell

Z

_ ProposalsI '1

above

1

l1

l AllsizesProposals

Industrial T7 ___

Commercial/ Mixed use ___All l so and

l

Harvesting Structure.ii)Soft landscape provisions

anPeiii

bedeof

d open spaces withrcolation pits.)Common treatment plant tomade part of the integrated

velopment, funded by salecommercial space.

i)Constructi0n of Rain water111

11l111

Should indicate the systemof Strom Water Drainage.

__..__...ii__________

building I 1(sq-m) .,_,__,__g ,___,___ ‘

Residential Plotted House g _New l 200 and Construction of Rain ware

Proposals above i Harvesting Structurei l ..___ . _ _____ .. _ _____ ___ _ i1

l

.._.____1__._._._.__.___,1

1111l

Rain Water HarvestingStructure and RechargingWell.

Shall have emphasis onboth storage and reuse.

ii Construction of Rain WaterHarvesting Structure.ii) Soft landscape provisions

and open spaces withPercolation pits.iii ) Use of abandoned borewells for recharging of groundwater.iv

IO) Common treatment plant

be made part of theintegrated developmentfunded by sale of commercialspace.

l Should indicate the systemof Strom Water Drainage.Rain Water HarvestingStructure and RechargingWell.Provisionshould be madenot to inject contaminatedwater into _ rechargestructures in industrialareas and care is to betaken to keep suchstructures away fromsewer lines. Septic tanks,soak pits, landfill and othersources of contamination; M

Other i 50 and Similarasabove_pr0p0sals __ ,al,>9v<=___, __ __ _,,,, .

Similar as above.

(4) Rain Water Harvesting Provisions for Opcl 'lhe open spacesl recreational land use generally constitute regional parks,

district parks, play ground and stadium, sports complex, monument zones, publicparking, plaza and other public open space. This may be as high as 30% to 50% of the

Page

n spaces in cities

26 _

l1

1

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Page 27: COMMITTEEREPORT REGARDINGAMMENDMENTOF ... Report... · “No piece of land where a closed, sick or other industry as located or is in operation, shall be used as a site forconstruction

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city’s geographic area. All such public open spaces above the size of 500 sq.m shallhave arrangements for complete utilization and capture of storm water with scientificrain water harvesting arrangements. s

Following ideas may also be included: ‘i) Well cum Channel cum percolation pits.ii) Use of abandoned bore wells for recharging of ground wateriii) Artificial or natural storage of storm water runoff from larger sites.

(5) Ground Water Recharge

Recharging of ground water should be made mandatory not only forresidential building but for all types of buildings, including Group Housing Societieshaving a plot area more than 500 sq. m. and above. ' .

The Ground Water Recharge should also be mandatory for open spaces likeparks, parking, plazas and playgrounds. The harvesting and recharge structures couldbe constructed by the authority with the involvement’ of community basedorganizations like Resident Welfare Associations. l '.1.

(6) Enforcement and Monitoring "i. The ULB shall constitute a rainwater Harvesting Cell which will be

responsible for enforcement and monitoring of the Provisions of RainwaterHarvesting. The cell shall employ qualified persons who are well versed with theinterpretation of Building Bye Laws and responsible for enforcement as well asmonitoring the functioning of the Rainwater Harvesting System.

ii. The Authority shall include inspection of rainwater Harvesting Structuresbefore issuing Completion Certificates or NOCs for service connections to theproperty.

iii. Set an example in the city by ensuring that Rainwater is harvested in theproperties/ assets owned by them including public building, markets, communitycenters, parking spaces, roads and parks etc.

iv. the Authority shall also establish a mechanism to monitor 100% of RWHprovisions in all the building above 1000 sq.m with annual physical verification,while building less than 1000 sq.m. can be monitored on the basis of 10% randomsurvey by competent authority. '

v) With regard to open public spaces viz., Parks, playgrounds etc, theimplementation of provision rainwater harvesting may be done with the help ofResidents Welfare Associations, Community Building Organizatin and Non-Giovernmental‘Organisations. i

vi. The “Authority shall ensure earmarking budgetary provision for the creationand maintenance of rainwater harvesting structures in public spaces owned andmaintained by them, like parking spaces, parks, plazas etc.

vii. The practice of incentives and penalties to promote rain water harvestingshall be formulated by the ULB based on best practices. ULB shall design its ownincentive and penalty systems, considering the water level and scarcity.

lb) Water Re-use and Recycling: - All non-residential buildings having adischarge of 10,000 litters and above per day shall incorporate wastewater re-cyclingsystem. Recycled water should be used for horticultural purpose."

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‘..J*'“j»

.‘._

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alt / Navar Panchayat” and "Local(xxxiii) The words “Chairman”, “Municip 1 y T D

' ll be substituted by "Mayor .-’” in the Principal Rule wherever available shaBody

“ "' ectively.Chairperson”.Q

recommendations the up

"ULB" and ULB resp g

Ufas~dated version of the Trip

Considering the above = 'h.Building Rules ~ 2004 is attached

r l up it

h€l't.Wll

Representative of-.(7\;~/>\ 7Representative of ' '

15-‘~==‘*~-U1 Disaster Magagement PWD(R&B)Govemment of Tripura" intending Efigiil Bl.

ailibmpnnn*-'-'¢Oun»0n-\Ufiflbsj

superPrillect Circle. f’\’\"-3 KR-35 *~

Agartala.

er Chief Plannerin OrganizationTown & Country PlannUrban Development Department Town & Countiy Plann g

‘ ' Government of lndiaGovernment of Tripura'" are l“'*\.=itf;‘ii;h.£'iiy%,i

~;i!'(Pm/ai_;ir:,. 1. .7'I3\r1~'.'s Ft €'}'”;i_zl‘-‘~i‘=' *‘i"i-I1-'1?' ~="'».2Q§iGV<i-'€‘.ll1{..-'=i ii-.r~~-5

Chief EnglineéUrban Development Department

Government of Tripura

A (_B.P. DAS iChzef Engineer,

Urbin Development Deptt.,Agartala,Tripura.

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