Qatar Construction Specifications 2014 Concrete Industry · Grand Hyatt Doha Hotel 16th May 2017 , DOHA - QATAR 2 National Technical Committee for Preparing and Development of QCS

Dr. Noureddin Issa Daas

NT–CIS Chairman (National Technical – Concrete Industry Subcommittee)

Consultant – Construction Codes and Building Materials Specification –

Qatar General Organization for Standardization

Grand Hyatt Doha Hotel 16th May 2017 , DOHA - QATAR

QCS 2014Concrete Structures Requirements

Grand Hyatt Doha Hotel 16th May 2017 , DOHA -

QATAR

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National Technical Committee for Preparing and Development of QCS

National Technical Concrete Industry Subcommittee NT-CIS

Ministerial Decree

QCS 2014 Contents

Concrete Structures Design Requirements

Buildings environmental requirements

QCS Green requirements

Foundations and Retaining Structures

Aggregates

Concrete properties

Reinforcement

QCS 2014

Concrete Structures Requirements

Grand Hyatt Doha Hotel 16th May 2017 , DOHA - QATAR3

QCS 2014

National Technical Committee for Preparing and

Development of QCS

Grand Hyatt Doha Hotel 16th May 2017 , DOHA - QATAR4

QCS 2014

National Technical Committee for Preparing and

Development of QCS

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6

QCS 2014

Ministerial Decree for approving QCS 2014 as a Technical

Regulation ( Compulsory Reg.)


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QCS 2014

QCS 2014 Contents

TITLESECTIONالعنوانالفصل

GENERALSection 1عموميات:الفصل األول

التحقق وضبط الجودة:الفصل الثانيQUALITY ASSURANCE AND QUALITY

CONTROLSection 2

GROUND INVESTIGATIONSection 3فحص التربة:الفصل الثالث

اإلستناديةوالهياكلاألساسات :الفصل الرابعFOUNDATIONS AND RETAINING

STRUCTURESSection 4

CONCRETESection 5الخرسانة:الفصل الخامس

ROADWORKSSection 6أعمال الطرق:الفصل السادس

GREEN CONSTRUCTIONSSection 7اإلنشاءات الخضراء:الفصل السابع

DRAINAGE WORKSSection 8الصرف الصحي:الفصل الثامن

المعدات الميكانيكية والكهربائية:الفصل التاسعMECHANICAL AND ELECTRICAL

EQUIPMENTSection 9

األجهزة والتحكم واألتمتة:الفصل العاشرINSTRUMENTATION, CONTROL AND

AUTOMATIONSection 10

HEALTH & SAFETYSection 11الصحة والسالمة :الفصل الحادي عشر

EARTHWORKS RELATED TO BUILDINGSSection 12األعمال الترابية للمباني:الفصل الثاني عشر

MASONRYSection 13أعمال بناء الطوب:الفصل الثالث عشر

ROOFINGSection 14أعمال األسقف :الفصل الرابع عشر

INSULATION OF BUILDINGSSection 15عزل المباني:الفصل الخامس عشر


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QCS 2014

TITLESECTIONالعنوانالفصل

STRUCTURAL STEELWORKSSection 16أعمال اإلنشاءات الفوالذية:الفصل السادس عشر

METALWORKSection 17مستلزمات اإلنشاء المعدنية:الفصل السابع عشر

األعمال الخشبية ومستلزماتها:الفصل الثامن عشرCARPENTRY, JOINERY AND

IRONMONGERYSection 18

:الفصل التاسع عشرتزويد وتخزين وتوزيع المياه والغاز

للمبانيPLUMBING WORKSection 19

DRAINAGE WORKS FOR BUILDINGSSection 20أعمال التصريف للمباني:الفصل العشرون

ELECTRICAL WORKSSection 21أعمال التمديدات الكهربائية:الفصل الواحد والعشرون

التكييف والتبريد والتهوية:الفصل الثاني والعشرونAIR CONDITIONING, REFRIGERATION AND

VENTILATIONSection 22

أنظمة وأعمال مكافحة الحريق:الفصل الثالث والعشرونFIRE FIGHTING AND FIRE ALARM

SYSTEMSSection 23

FINISHES TO BUILDINGSSection 24أعمال تشطيب المباني:الفصل الرابع والعشرون

GLASS AND GLAZINGSection 25أعمال الزجاج:الفصل الخامس والعشرون

PAINTING AND DECORATINGSection 26أعمال الدهان والديكور:الفصل السادس والعشرون

EXTERNAL WORKSSection 27األعمال الخارجية:الفصل السابع والعشرون

LANDSCAPINGSection 28الحدائق:الفصل الثامن والعشرون

RAILWAYSSection 28السكك الحديدية:الفصل التاسع والعشرون


QCS 2014 Contents

Grand Hyatt Doha Hotel 16th May 2017 , DOHA -

QATAR

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Wind SpeedWind speed shall not be less than the following based on the applied loads code/standard:

Nominal wind speed for 3 sec gust 38 m/s (A per ASCE 7-10 / IBC 2012)

Mean hourly wind speed 25 m/s (as per BS 6399-2)

Mean 10 minutes wind speed 27 m/s (as per BS EN 1991-1-4)

The seismic design for all building structure:

shall be based upon local seismic accelerations recommended as per

ASCE 7-10,

IBC 2012 or

BS EN 1998-1:2004.Local seismic spectral accelerations based upon uniform hazard response spectra for 475 year and

2475 year return period for Doha as below.

QCS 2014

Concrete Structures Design Requirements

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shall be minimum as specified below

QCS 2014

Minimum Building Structure Design Working

Life

Design

working life

category

Indicative

design working

life (years)

Examples

1 10 Temporary structures (a)

2 10 to 25 Replaceable structural parts, eg.

Gantry girders, bearings

3 15 to 30 Storage and similar structures

4 50 to 75 Building structures and other common

structures

5 120 Civil engineering structures like

bridges, tunnel etc.


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Thermal InsulationFor all new air conditioned buildings, the external walls, roofs

and floors exterior must have an average thermal transmittance

(U Value) which does not exceed the following values:

o Roof U= 0.44W/m2K

o External Wall U=0.57W/m2K

o Floor U=0.57W/m2K

Acoustical Controlo References were adopted

QCS 2014

Buildings Environmental Requirements


QNCC: 26-27 October 2014, Doha - Qatar12

Waste Management

Construction and Demolition Waste

For all new buildings unless or until specified otherwise, at least

fifty percent (50%) by volume or weight of Construction and

Demolition Waste of buildings must be recycled or reused.

Bulk Waste Collection

For all new residential apartment buildings, an area must be

provided for residents to place items of bulky waste such as

furniture and, electrical appliances

Recyclable Waste Management Facilities:

For all new buildings other than villas, a sorting and storage

facility for recyclable materials must be provided

QCS 2014

Buildings Environmental Requirements

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QCS 2014 Grand Hyatt Doha Hotel 16th May 2017 , DOHA - QATAR

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QCS 2014 Grand Hyatt Doha Hotel 16th May 2017 , DOHA - QATAR

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QCS 2014

Foundations and Retaining Structures Part1 General Requirements for Piling Work

Part2 General Requirements for Concrete Work

Part3 Shallow Foundations

Design considerations

Basis of Geotechnical Design

Geotechnical Design by Calculation

Part4 Deep Foundations

Part5 Retaining Structures

Ultimate and Serviceability Limit states

Actions and Geometrical Data

Design and Construction Considerations

Determination of Earth & Water Pressures

Ultimate and Serviceability Limit states Design


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QCS 2014

QCS 2014 - Section 5: Part 2: Aggregates


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QCS 2014

QCS 2014- Section 5: Part 6: Property Requirements

Concrete Structure Exposure Conditions:

Sulphate exposure classes S1 to S4: the exposure classes are related to sulphate attack in relation to sulphate and pH of the ground water


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QCS 2014

QCS 2014- Section 5: Part 6: Property Requirements

SULPHATE EXPOSURE CLASSES:


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QCS 2014

Recommended durability requirement to resist

reinforcement corrosion

Exposure Class Minimum concrete cover (mm)

Cementitious

type (Table

6.6)

X0No risk of

corrosion25 All

X1 Mild 45 40 35 30 All

X2 Moderate - 50 45 40 35 All

X3 Aggressive - 70 65 60 55

PC/FA

PC/GGBS

Triple

blend

X4 Severe* - 75 70 65 60

PC/FA

PC/GGBS

Triple

blend

X5 Extreme* - 80 75 70 65 Triple

blend

Minimum

concrete gradeC30 C40 C50 C60 C75


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QCS 2014

Concrete Reinforcing Bars

Reinforcement shall be from an acceptable source. All steel

reinforcement bars shall comply with the requirements of:

QS ISO 6935 with minimum grade of B500 MPa or

BS 4449 with minimum grades of B500 MPa ; or.

ASTM A615 / A615M with minimum grade of 75 [520MpPa]; or

Deformed and Plain, Low-carbon, -Chromium, -Steel Bars for Concrete

Reinforcement: ASTM A1035/ A1035M -11

Other types of reinforcement, as approved by Qatar

As per project design, other steel grades of less than B500MPa

may be used only for stirrups and secondary reinforcement of

diameter of 10mm or less.


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QCS 2014


Future Concrete – QCS 201?

Monitoring Structures?

Existing Buildings?


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QCS 2014


Thank you


Documents

Qatar Construction Specifications 2014 Concrete Industry · Grand Hyatt Doha Hotel 16th May 2017 , DOHA - QATAR 2 National Technical Committee for Preparing and Development of QCS