000			04643 a2200169 4500
020			_a8186930175
082			_a624.1762 _bBMTPC
100			_aBuilding Materials and Technology Promotion Council _951489
245			_aGuidelines for improving earthquake resistance of housing
260			_aNew Delhi _bBuilding Materials and Technology Promotion Council _c2010
300			_avi,76p.
505			_aCONTENTS 1.INTRODUCTION 1 2.SCOPE 1 3.TERMINOLOGY 2 Band 2 Centre of Mass 2 Concrete Grades 2 Design Horizontal Seismic Coefficient 2 Engineered Buildings 2 Non-engineered Buildings 2 Pre-Engineered Buildings 2 Seismic Zone and Seismic Co-efficient 2 Semi-Engineered Buildings 2 4.UNDERSTANDING EARTHQUAKES 3 Earthquake Vibrations 3 Measurement of Ground Motion 3 Epicentre, Hypocentre and Earthquake Waves 4 Strong Ground Motion 4 Magnitude and Energy of an Earthquake 5 5.EARTHQUAKE EFFECTS 6 Force Generation Mechanics 6 Nature of Seismic Stresses 7 Factors Affecting Structural Damage 8 Overall Effects of Major Earthquakes 9 6.INTENSITY AND ISOSEISMALS OF AN EARTHQUAKE AND SEISMIC ZONING 10 Intensity Scales 10 Isoseismals of an Earthquake 11 Seismic Zoning 11 7.EARTHQUAKE FORCE FOR DESIGN 12 The Earthquake Force 12 Design Seismic Coefficient 13 Design Base Shear in Buildings 14 Multistorey Buildings 14 8.ANALYSIS AND DESIGN OF BUILDINGS 16 Lateral Load Analysis 16 Torsion 17 Drift 17 Vertical Seismic Acceleration 17 Appendages 17 Buildings with Soft Storey 18 Secondary Elements 18 Partial Safety Factors 18 Increase in Permissible Stresses in Materials 18 9.SITING OF SETTLEMENTS AND BUILDINGS 19 Effect of Site Conditions on Building Damage 19 Siting of Settlements 19 Building Safety 19 Relocation of Site after Disaster 19 10.FACTORS AFFECTING DAMAGE TO BUILDINGS 20 Building Configuration 20 Openings in Walls 20 Rigidity Distribution 20 Ductility 21 Foundation 21 Quality of Construction and Maintenance 21 Additions to Existing Structures 21 Change in Occupancy 22 11.CATEGORIES OF EARTHQUAKE DAMAGE 22 12.ARCHITECTURAL DESIGN FEATURES 22 Lightness 22 Projecting and Suspended parts 22 Building Configuration 22 13.DETAILING FOR DUCTILITY 25 Need for Ductility in Structural Frames 25 Nature of Recommendation for Ductility 25 14.DETAILING OF R.C. MOMENT RESISTANT FRAMES 26 Concrete and Steel Grades 27 Detailing of Beams 27 Detailing of Columns 28 Detailing of Beam-Column Connections 29 Detailing of Foundation, Plinth Beam, Column Joint 29 15.DUCTILE DETAILING OF STEEL FRAMES 29 Local Buckling 29 Lateral Buckling of Beams 30 Design of Columns for Ductility 31 Design of Connections for Ductility 32 16.CATEGORIES OF NON-ENGINEERED BUILDINGS 35 Seismic Zones 35 Importance of Building 35 Strength and Stiffness of Soil 35 Combination of Parameters 36 17.SAFETY OF NON-ENGINEERED BUILDINGS 36 18.BUILDINGS OF GOOD MASONRY STRENGTH 40 Building Types 40 Control on Length and Height of Walls 40 Mortar Mix 40 Control on Openings in walls 40 Reinforced Concrete Bands 41 Details of the Bands 42 Vertical Reinforcement 44 Framing of Thin Load Bearing Walls 44 Reinforcing Details for Hollow Block Masonry 45 19.BURNED BRICK BUILDINGS USING CLAY MUD MORTAR 46 Control on Wall Lengths and Buildings Height 46 Control on Openings in Bearing Walls 47 Seismic Strengthening Features 47 Water proofing 47 20.BUILDINGS WITH STONE MASONRY WALLS 47 Scope 47 Typical Damage and Failure of Stone Buildings 48 Construction Control 48 Control on Wall Length and Building Height 49 Control of Openings in Bearing Walls 49 Seismic Strengthening Features 49 Water Proofing 50 21.EARTHEN HOUSES 50 Scope 50 Control on Construction 50 Control on Length of Walls and Building Height 50 Control on Openings in Bearing Walls 50 Seismic Strengthening Features 51 Foundation and Plinth 54 Waterproofing 54 22.WOOD HOUSES 54 Foundation 54 Control of Bearing walls, Openings and Building Height 54 Stud Wall Construction 55 Brick Nogged Timber Frame Construction 55 23.REPAIR AND RESTORATION OF DAMAGED BUILDINGS 57 Non-structural/Architectural Repairs 57 Structural Repairs or Restoration 57 24.STRENGTHENING OF EXISTING BUILDINGS 59 Approach to Seismic Retrofitting 59 Cost of Repairs and Retrofitting 59 Objectives of Seismic Retrofitting Procedures 59 Seismic Retrofitting Features 60 References 66 Annexure 1: MSK Intensity Scale (Extract related to buildings) 67 Annexure 2: Confined Masonry Building Construction 68
600			_939422
890			_aIndia
891			_aFT
942			_2ddc
999			_c44924 _d44924