VIDC Phase 3 - Low Rise Buildings - Structural Basic Design Report- Bilingual 040811

7/29/2019 VIDC Phase 3 - Low Rise Buildings - Structural Basic Design Report- Bilingual 040811

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CPG Vietnam Co., Ltd Rev A August 2011Structural Basic Design Report

Structural Basic Design Report

Thuyt Minh Thit KCSHng Mc Kt Cu

Phase 3 Resident ia l Projec t - Le Trong Tan Tow nship

u TXy Dng Tiu Khu Nh 3 - Khu ThMi L Trng Tn

Low Rise Bu i ld ings (Tow nhouses)

Issue No. Date Description Issued

1 04/08/11 Structural Basic Design Rev A


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CPG Vietnam Co., Ltd Rev A August 2011Structural Basic Design Report

Phase 3 Residential Project - Le Trong Tan Townshipu TXy Dng Tiu Khu3 - Khu ThMi L Trng Tn

Structural Basic Design Report

Thuyt Minh Thit KKt Cu CS

Structural Basic Design Report carried out by the Consultant and approved by the Owner.Thuyt Minh Thit K Kt Cu CSc thc hin bin vtvn v c chp thun bi Chu t.

The Owner :Chu T:

The Consultant :n VTVn:

GENERAL DIRECTORJIMMY TSEN CHEE NAM

Attachments :nh km:

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CPG Vietnam Co., Ltd Page 1 of 7Structural Basic Design Report Rev A August 2011

CONTENTMC LC

1.0 PROJECT DESCRIPTION ........................................................................................ 2

GII THIU CNG TRNH2.0 SOIL INVESTIGATION REPORT .............................................................................. 2

BO COA CHT3.0 FOUNDATION DESIGN ............................................................................................ 2

THIT KMNG4.0 BUILDING STABILITY .............................................................................................. 2

TNHNNH CNG TRNH

5.0 STRUCTURAL FRAMING ......................................................................................... 3KHUNG KT CU

6.0 STANDARDS AND DESIGN LOADS ....................................................................... 3TI TRNG THIT K

7.0 STRUCTURAL MATERIAL PROPERTIES ............................................................... 6CC THNH PHN VT LIU KT CU

8.0 COMPUTER SOFTWARE ......................................................................................... 7PHN MM SDNG


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1.0 PROJECT DESCRIPTIONGII THIU CNG TRNH

Phase 3 Residential Development consists of low rise buildings (townhouses) and condominiumtower blocks located in Ha Dong, Ha Noi City. Low Rise buildings will be developed first andcondominium tower blocks will be developed at a later stage. This report will only be applicable toLow Rise Building development.Dn u TXy Dng Tiu Khu Nh 3 bao gm cc cng trnh thp tng ( nh ph) v ta nhcondominium ta lc ti H ng, thnh ph H Ni. Cc nh thp tng s thc hin trc v ta nhcondominium s thc hin giaion sau. Bo co ny chp dng cho cc nh thp tng

There are 32 blocks of Low Rise buildings. Within the 32 blocks, there are 13 different types of blocklayout. There are 7 different unit types and each type consists of 3 living floors plus roof.Dn c 32 khu nh thp tng. Trong 32 khu c 13 loi mt bng khu khc nhau. Trong c 7kiu cn nh khc nhau v mi cn nh bao gm 3 tngv mi.

2.0 SOIL INVESTIGATION REPORT

BO COA CHT

The site soil investigation is being carried out at present. Based on the earlier Phases of thedevelopment and knowledge and understanding of the soils in the area, the site has a sandfill ofapproximately 1.4m on top of the existing natural ground. As the soil investigation report has notbeen completed, the foundation design at this stage will be based on the soil investigation report fromthe other Phases of the development. .Cng tc kho sta chtangc thc hin. Da trn cng trnh thc hin giaion gny v theo kinh nghim hiu bit va cht khu vc ny, cng trnh c san lp mt lp ctkhong 1.4 bn trn t tnhin hin hu. Cng tc kho sta cht cha hon thnh nn vic thitk mnggiaion ny da trn kho sta cht ca giaion trc.

3.0 FOUNDATION DESIGNTHIT KMNG

Based on the soil data from Phase 2 development, we are anticipating the foundation system to be asfollows;Da trn dliu a cht ca giaion 2, chng tic lng trc h mong sdng nhsau:

Townhouse structures and other low rise buildings one way strip footings founded in the soil layerachieving a net allowable bearing capacity of 120kPa. The current foundation design, bearing andsettlement will have to be re-confirmed and re-checked after receiving the soil investigation report.This may require some slight amendment to the foundation sizes and layout.Nh ph v cc nh thp tng mng bng mt phngt trn lp t c sc chu ti 120kPa.Theo thit k mong hin ti, sc chu ti v ln sc xc nhn v kim tra li sau khi c bo

co kho sta cht.iu ny c th dn n nhng thayi nh cho kch thc cng nhmtbng mong.

4.0 BUILDING STABILITYTNHNNH CNG TRNH

There are numerous methods to maintain the stability under the application of the horizontal loads(Wind or Seismic). For these simple 3 storey villas stability is achieved by reinforced concretemoment resisting beam and column frames located in both directions.C rt nhiu phng n duy trn nh di ti trng ngang (tI trng gi v a chn). i vin nh ca khu bit th2 tngn gin, ta dng khung ct v dm b tng chng un t theo c hai

phng.


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5.0 STRUCTURAL FRAMINGKHUNG KT CU

5.1 GeneralTng Qut

At all times the engineers must ensure that the structural system for the building is rational and can beconstructed within the range of the local market skills and conditions, in a fast, safe and cost effectivemanner.Ti mi thiim cc ksphi chc chn rng ta nh c b tr hp l v c thc thi cngtrong phm vi cciu kin v thtrng trong ncc thc hin nhanh, an ton v tit kim chi ph.

5.2 ColumnsCt

The column locations selected are strategically and placed to suit the architectural requirements. Thecolumn spacing leads to an efficient structural design.Vtr cc ctc quytnh ti cc vtr chin lc ph hp vi yu cu kin trc. Bc ct snhhngng kn thit k kt cu.

The columns carry all the vertical dead and live loads of the building and also act as moment framesto resist horizontal wind and seismic loads.Cc ct phi chu c tt c tnh v hot ti dc ca cng trnh v chu c c khung moment gyra bi ti trng gi v a chn.

5.3 Floor Framing SystemH Khung Sn

Traditional In-situ Reinforced Concrete

B Tng Ct Thp Ti Ch Kiu Truyn ThngBoth the column layout and room designs allow for the effective use of two way spanning reinforcedconcrete slabs supported by reinforced concrete beams. This framing system is a simple low skilltraditional way and is ideal for economical slab and beam sizes.C mt bng ct v phng thit k cho php sdng hiu qu sn b tng ct thp hai phngbi dm b tng ct thp. H khung ny thn gin v kch thc dm sn kinh t nht.

6.0 STANDARDS AND DESIGN LOADSTI TRNG THIT K

6.1 Design Codes & Standards

Cc Tiu Chun Thit K

For this project both the British (BS) and Vietnamese standards are to be used. The BS codes will bedesigned calculation of dead loads, live loads, load combinations and the elemental size andreinforcement design for all concrete items. The Vietnamese codes will be used for both wind andseismic loads as these 2 items are subject to local geographical conditions.i vi D n ny, c hai Tiu chun Anh (BS) v Tiu chun Vit Nam u c p dng. Tiuchun Anh sc thit k tnh tnh ti, hot ti, t hp ti trng, kch thc cu kin v thit kct thp cho tt c cc hng mc b tng. Cc Tiu chun Vit Nam sc p dng cho vic tnhton cc ti trng gi v ti trngngt v 2 ti trng nyu chu nh hng ca cciu kina cht trong nc.


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The codes and standards are noted below;Cc tiu chun c ghi ch diy;

INTERNATIONAL DESIGN CODES & STANDARDSTIU CHUN THIT KQUC T

Eurocode 0 (BS EN 1990) Basis of Structural DesignNn tng thit k kt cu

Eurocode 1 (BS 6399) Loading for buildingsTi trng cho cng trnh

Eurocode 2 (BS 8110) Structural Use of ConcreteKt cu b tng v b tng ct thp

Eurocode 2 (BS 8007) Design of concrete structures for retainingaqueous liquidThit k cc kt cu b tng ct thp trong lnh vcmi trng

Eurocode 3 (BS 5950) Structural Use of Steelwork in BuildingKt cu thp trong cng trnh.

Eurocode 7 (BS 8004) FoundationsNn Mng

Eurocode 7 (BS 8002) Earth retaining structuresKt cu chn t

EN Eurocode 8 Design of structures for earthquake resistance

Thit k kt cu chngngt

Eurocode 9 (BS 8118) Structural Use of AluminiumKt cu nhm.

VIETNAMESE DESIGN CODES & STANDARDSTIU CHUN THIT KVIT NAM

TCXD 205:1998 Pile foundationsMng cc Tiu chun thit k

TCXDVN 338:2006 Steel structures

Kt cu thpTCXDVN 356:2005 Concrete & reinforced concrete structures

Kt cu b tng v b tng ct thp

TCXDVN 375:2006 Design of structures for earthquake resistanceThit k cng trnh chu ngt

TCVN 2737:1995 Load and EffectsTi trng v Tcng


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6.2 Superimposed Live LoadsHot Ti

In accordance with the design standards and the actual service plant areas the following design liveloads have been used;Theo tiu chun thit k v cc khu vc k thut dch v thc t, cc hot ti thit k sau ycdng;

Area kN/m2

Khu vc kN/m2

Bedroom Room 1.5Phng ng

Living Room 1.5Phng khch

Kitchen 1.5Phng bp

Stairs 1.5

Cu thangBalconies 1.5Ban cng

Others 1.5Khc

Roofs Non accessible 0.75Mi Khng sdng

Live load reduction factors can be applied to applicable areas.Cc h s gim ti hot ti c thc p dngi vi cc khu vc

6.3 Superimposed Dead LoadsTnh Ti

Material kN/m2

Vt liu kN/m2

50mm screed & floor tile 1.250mm lt nn v lt gch sn

Ceilings, services & misc. 0.6Trn, M&E v cc ti trng khc

Finished internal solid brick wall (130mm) 2.5Tng gch n rng (130mm)

Finished solid Double Brick wall (250 thick) 4.0

Tng gch i ( dy 250mm)

6.4 Wind LoadsTi Trng Gi

The basic wind pressure, Wo, is evaluated using TCVN 2737, Zone IIB is 0.95kPa.p lc gi cn bn, W0, c tnh theo TCVN2737, khu vc IIB l 0.95KPa.


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6.5 Seismic (Earthquake) LoadsTi Trngngt

In accordance with the 2006 Vietnamese design requirements the applicable lateral seismic force tobe used is 0.1131g.Theo cc yu cu thit k ca Vit Nam nm 2006, gia tc nn c p dng l 0.1131g.

6.6 Load CombinationTi Trngngt

The most severe of the following load combinations are adopted for the design of member sections:Trng hp nguy him nht ca cc t hp ti trng sau c dung thit kt tit din cu kin:

Load combinations and values of yf for ultimate limit stateT hp ti trng v gi tryfcho cc hn

Load

combinationT hp titrng

Load type

Dead GkTnh ti Live Qk

Hot ti Earth/Waterpressure Enp lct/nc

Wind Wk(reversible)+/-Gi (+/-)

Seismic AEd(reversible)+/-ngt (+/-)

01 1.4 1.6 1.4 - -

02 1.4 - - 1.4 -

03 1.0 - - 1.4 -

04 1.2 1.2 - 1.2 -

Eurocode 8 shall be adopted for Seismic design in compliance with local geographical conditionsEurocode 8 sc sdng thit k chngngt da trn iu kin a la phng.05 1.0 - - - I x 1.0

06 1.0 0.36 - - I x 1.0

7.0 STRUCTURAL MATERIAL PROPERTIESCC THNH PHN VT LIU KT CU

7.1 ConcreteB Tng

The minimum 28-day compressive cube strength of concrete (fcu) for specified structural elements shallbe as follows unless otherwise stated:Cng chu nn ti thiu trong 28 ngyi vi mu b tng lp phng cho cc cu kin kt cu sc chnh nhsau, trphi c yu cu khc:

Building

Lean Concrete = 15 N/mm2

B tng lt

Mass Concrete = 20 N/mm2

B tng khi ln

Beam & Suspended Slab = 30 N/mm2

Dm v sn treo

Column and Wall (u.o.s) = 30 N/mm2

Ct v vch


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Ground Floor Apron Slab = 30 N/mm2

Sn tng trt tip xct

Non-Suspended = 30 N/mm2

Sn khng treo

Stiffeners, Lintels for Brickwall = 20 N/mm2

B tr, lanh t cho tng gch

External WorkKt cu ngoi nh

Culvert, Drains, Manhole, etc = 35 N/mm2

Cng, mng, h ga,..

Retaining walls = 35 N/mm2

Tng chn

FoundationMng

Strip Foundation = 35 N/mm2

Mng bng

MiscellaneousPh tr

Concrete Plinth = 30 N/mm2

B

Mortar Bedding = 20 N/mm2

Va lt

7.2 ReinforcementCt Thp

The specified high yield strength reinforcement is Grade SD390 (Fy=390MPa) for all reinforcementexcept diameter smaller 10mm is Grade SR235 (Fy=235MPa)Tt c sdng ct thp cng cao Mc SD390 (Fy=390MPa)ngoi tr thp ng knh nh hn10mm sdng Mc SR235 (Fy=235MPa).

8.0 COMPUTER SOFTWAREPHN MM SDNG

Etabs A 3D finite element analysis software programme used for the force and deflection analysis of

the building under both vertical and horizontal loads.Phn mm phn tch phn thu hn 3D Etabs sc sdng phn tch lc v vng cacng trnh di c ti trngng v ngang.

Reinforced Concrete Council (UK) design spreadsheets approved reinforced concrete Excelelemental design spreadsheets to BS 8110:1997.Cc bng tnh ton thit k ca Hip Hi B Tng Ct Thp (UK) Cc bng tnh ton thit k thnhphn cu kin bng Excel v b tng ct thp c chp thun theo tiu chun BS 8110:1997.

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VIDC Phase 3 - Low Rise Buildings - Structural Basic Design Report- Bilingual 040811