iraqi seismic code 1997 arabic&english

1 REPUBLIC OF IRAQ

SEISMIC CODE REQUIREMENTS FOR BUILDINGS

BUILDING RESEARCH CENTRE

General Commission for Industrial Research and Development Ministry of industry and Minerals

APPROVED BY CENTRAL ORGANIZATION FOR STANDARDIZATION AND QUALITY CONTROL

IRAQI SEISMIC CODE REQUIREMENTS FOR BUILDINGS

1 BUILDING RESEARCH CENTRE General Commission for Industrial Research and Development Ministry of Industry and Minerals

APROVED BY CENTRAL ORGANIZATION FOR STANDARDIZATION AND QUALITY CONTROL

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CONTENTS

I'age No.

C:I.IAP'TER 1 - SCOPE AND PURI'OSE .................................................... 1

CI-IAP'TER 2 - I'RINCIPLES OF EARTI-IQUAICE - RESISTANT ............ 2

DESIGN

2.1- Basic Concept 2.2- Stl-uctural Layout 2.3- SII-ucrural Systenl 2.4- Ductilit)) 2.5- Dcfo~lnations '.6- Sire Selection 2.7- Seismic Joints 2.8- Floor Structures

CI-IAP'TER 3 - EVALUA'l'lON OF SEISRlIC AC'I'IONS ...................... 5

3.1- General 3.2- Evaluation of Seismic Design Forces for Equivalent Static Analysis

3.2.1- Seismic Hazard and Zoning Coefficient - Z 3.2.2- hnportance Factor - 1 3.2.3- Dynamic Coefficient - S 3.2.4- S~I-uctural System Coefficient- K 3.2.5- Total Weiglit of Buildings and Structures - \'I' 3.2.6- influence of Soil and Foundation Conditions

3.3- Dish-ibution of Seismic Forces 3.4- Mcthoti of lly~iamic Tinie History Analysis

C IlAPTEIt 4 - VERIFICA'I'ION OF STRUCTURAL BEIIAVIOUR, ...... IS STRESS CONDITIONS AND DEFORMATIONS

CIIAIST1~R 5 - CONS'I'RUCI'ION OF EAR'TI-IQUAICE RESlSI'ANI' ...... 21 STIIIICTURES

5.1 -Reinforced Concrete Sbuctuires 5. I . I -General, Ductility a~ id Stl-cngl11 12eq~1iserlients 5.1.2-General Classification 5.1 .3- l ra~ne Systems 5. I .?-Wall Syste~ns 5.15-llual Systems

Page No. 5.2-Pres*essed Concrete Str-uctures 5.3-Steel Struc(tl~'es 5.4-Prefabricated Structures 5.5-Mason~y Str-uctures 5.6-Foundations

5.6.1-General 5.6.2-Soil Capacities 5.6.3-Supershucture-Foui~daho~~ Conilection 5.6.4-Foundation - Soil lnte~face 5.6.5-Special Requirenlents for Piles a id Caissons

APPENDIX A List of reports of Investi~ations for elaboratio~l of preliminaly ... 37 seismic design code of Iraq

APPENDEX B Seismic Zoning Map of Iraq ... 39

CIlAPTER 1 - SCOPE AND PURPOSE

1.1- This code provides design and construction requi~.emenls for a11 ea~thq~lake resistant buildings, to~fel-s ; cl~imneys and sinlilar sll.uctul-es.

'The method specified do not cover nuclear power plants, large dams. and sinlila installations which 1.equi1.e special site and str-tictural investigations.

1.2- The pulpose of an earthquake I-esistant design is : - t o PI-event loss of life and 11uman injury. - to ensure continuity of vital services. - to il~inimize darnage to propei~y.