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Eerc guidelines for erdd

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  • 1. Earthquake Engineering Research Centre International Institute of Information Technology Gachibowli, Hyderabad – 500 032 INDIA GUIDELINES FOR EARTHQUAKE RESISTANT DESIGN AND DETAILING
  • 2. 1. Essentials of Earthquake Resistant Design  Configuration  Strength  Stiffness  Ductility 2. General Guidelines 2.1 SITE SELECTION Building should not be built on filled-up soil Building should be sufficiently away from steep slopes If unavoidable, use raft on pile
  • 3. 2.2 PLAN OF BUILDING Asymmetric buildings undergo torsion and extreme corners are subjected to very large earthquake forces. Asymmetry should be avoided
  • 4. 2.3 SHAPE OF BUILDING H/b<4 Very slender buildings should be avoided. Inverted pendulum type buildings are unstable
  • 5. Sudden change of lateral stiffness should be avoided
  • 6. 2.4 PROJECTIONS AND OVERHANGS Large overhangs and projects attract large earthquake forces
  • 7. Load bearing- 15 mm RCC Frame - 20 mm Steel Frame - 30 mm 2.5 SEPARATION OF DISSIMILAR BUILDINGS To avoid collision Adjacent dissimilar buildings should be separated by a minimum gap 2.6 AVOID HEAVY MASS AT TOP Large water tanks should be avoided Small tanks, if provided, should be properly connected with the framing system
  • 8. 2.7 OPEN GROUND STOREY
  • 9. 3.0 Reinforcement Detailing Guidelines 3.1 Footing D o’s and D on’t
  • 10. 3.2 Stirrup detail
  • 11. 3.3 Stirrup detail
  • 12. 3.4 Arranging stirrups in column
  • 13. 3.5 Lapping reinforcement in column
  • 14. 3.6 Stirrups in beam
  • 15. 3.7 Stirrups in beam
  • 16. 3.8 Rigid joint

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