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The 2003 NEHRP Recommended Provisions
1.1
GENERAL 1.1.1
Purpose 1.1.2
Scope and application 1.1.3
References 1.1.4
Definitions 1.1.5
Notation 1.2
SEISMIC USE GROUPS 1.2.1
Seismic Use Group III 1.2.2
Seismic Use Group II 1.2.3
Seismic Use Group I 1.2.4
Multiple use 1.2.5
Seismic Use Group III structure access protection 1.3
OCCUPANCY IMPORTANCE FACTOR 1.4
SEISMIC DESIGN CATEGORY 1.4.1
Determination of Seismic Design Category 1.4.2
Site limitation for Seismic Design Categories E and F 1.5
SEISMIC DESIGN CATEGORY A 1.5.1
Lateral forces 1.5.2
Connections 1.5.3
Anchorage of concrete or masonry walls 1.5.4
Tanks assigned to Seismic Use Group III 2.1
GENERAL 2.1.1
Scope 2.1.2
References 2.1.3
Definitions 2.1.4
Notation 2.2
GENERAL REQUIREMENTS 2.2.1
Details of quality assurance plan 2.2.2
Contractor responsibility 2.3
SPECIAL INSPECTION 2.3.1
Piers, piles, and caissons 2.3.2
Reinforcing steel 2.3.3
Structural concrete 2.3.4
Prestressed concrete 2.3.5
Structural masonry 2.3.6
Structural steel 2.3.7
Structural wood 2.3.8
Cold-formed steel 2.3.9
Architectural components 2.3.10
Mechanical and electrical components 2.3.11
Seismic isolation systems 2.4
TESTING 2.4.1
Reinforcing and prestressing steel 2.4.2
Structural concrete 2.4.3
Structural masonry 2.4.4
Structural steel 2.4.5
Mechanical and electrical equipment 2.4.6
Seismically isolated structures 2.5
STRUCTURAL OBSERVATIONS 2.6
REPORTING AND COMPLIANCE PROCEDURES 3.1
GENERAL 3.1.1
Scope 3.1.2
References 3.1.3
Definitions 3.1.4
Notation 3.2
GENERAL REQUIREMENTS 3.2.1
Site class 3.2.2
Procedure selection 3.3
GENERAL PROCEDURE 3.3.1
Mapped acceleration parameters 3.3.2
Site coefficients and adjusted acceleration parameters 3.3.3
Design acceleration parameters 3.3.4
Design response spectrum 3.4
SITE SPECIFIC PROCEDURE 3.4.1
Probabilistic maximum considered earthquake 3.4.2
Deterministic maximum considered earthquake 3.4.3
Site-specific maximum considered earthquake 3.4.4
Design response spectrum 3.5
SITE CLASSIFICATION FOR SEISMIC DESIGN 3.5.1
Site class definitions 3.5.2
Steps for classifying a site 4.1
GENERAL 4.1.1
Scope 4.1.2
References 4.1.3
Definitions 4.1.4
Notation 4.2
GENERAL REQUIREMENTS 4.2.1
Design basis 4.2.2
Combination of load effects 4.3
SEISMIC-FORCE-RESISTING SYSTEM 4.3.1
Selection and limitations (revised 07/29/04) 4.3.2
Configuration 4.3.3
Redundancy 4.4
STRUCTURAL ANALYSIS 4.4.1
Procedure selection 4.4.2
Application of loading 4.5
DEFORMATION REQUIREMENTS 4.5.1
Deflection and drift limits 4.5.2
Seismic Design Categories B and C 4.5.3
Seismic Design Categories D, E, and F 4.6
DESIGN AND DETAILING REQUIREMENTS 4.6.1
Seismic design Category B 4.6.2
Seismic design Category C 4.6.3
Seismic Design Category D, E, and F 5.1
GENERAL 5.1.1
Scope 5.1.2
Definitions 5.1.3
Notation 5.2
EQUIVALENT LATERAL FORCE PROCEDURE 5.2.1
Seismic base shear 5.2.2
Period determination 5.2.3
Vertical distribution of seismic forces 5.2.4
Horizontal shear distribution 5.2.5
Overturning 5.2.6
Drift determination and P-delta effects 5.3
RESPONSE SPECTRUM PROCEDURE 5.3.1
Modeling 5.3.2
Modes 5.3.3
Modal properties 5.3.4
Modal base shear 5.3.5
Modal forces, deflections and drifts 5.3.6
Modal story shears and moments 5.3.7
Design values 5.3.8
Horizontal shear distribution 5.3.9
Foundation overturning 5.3.10
P-delta effects 5.4
LINEAR RESPONSE HISTORY PROCEDURE 5.4.1
Modeling 5.4.2
Ground motion 5.4.3
Response parameters 5.5
NONLINEAR RESPONSE HISTORY PROCEDURE 5.5.1
Modeling 5.5.2
Ground motion and other loading 5.5.3
Response parameters 5.5.4
Design review 5.6
SOIL-STRUCTURE INTERATION EFFECTS 5.6.1
General 5.6.2
Equivalent lateral force procedure 5.6.3
Response spectrum procedure 6.1
GENERAL 6.1.1
Scope 6.1.2
References 6.1.3
Definitions 6.1.4
Notation 6.2
GENERAL DESIGN REQUIREMENTS 6.2.1
Seismic Design Category 6.2.2
Component importance factor 6.2.3
Consequential damage 6.2.4
Flexibility 6.2.5
Component force transfer 6.2.6
Seismic forces 6.2.7
Seismic relative displacements 6.2.8
Component anchorage 6.2.9
Construction documents 6.3
ARCHITECTURAL COMPONENTS 6.3.1
Forces and displacements 6.3.2
Exterior nonstructural wall elements and connections 6.3.3
Out-of-plane bending 6.3.4
Suspended ceilings 6.3.5
Access floors 6.3.6
Partitions 6.3.7
General 6.3.8
Seismic drift limits for glass components 6.4
MECHANICAL AND ELECTRICAL COMPONENTS 6.4.1
Component period 6.4.2
Mechanical components 6.4.3
Electrical components 6.4.4
Supports and attachments 6.4.5
Utility and service lines 6.4.6
HVAC ductwork 6.4.7
Piping systems 6.4.8
Boilers and pressure vessels 6.4.9
Elevators 7.1
GENERAL 7.1.1
Scope 7.1.2
References 7.1.3
Definitions 7.1.4
Notation 7.2
GENERAL DESIGN REQUIREMENTS 7.2.1
Foundation components 7.2.2
Soil capacities 7.2.3
Foundation load-deformation characteristics 7.3
SEISMIC DESIGN CATEGORY B 7.4
SEISMIC DESIGN CATEGORY C 7.4.1
Investigation 7.4.2
Pole-type structures 7.4.3
Foundation ties 7.4.4
Special pile requirements 7.5
SEISMIC DESIGN CATEGORIES D, E, AND F 7.5.1
Investigation 7.5.2
Liquefaction potential and soil strength loss 7.5.3
Foundation ties 7.5.4
Special pile and grade beam requirements 8.1
GENERAL 8.1.1
Scope 8.1.2
References 8.1.3
Definitions 8.1.4
Notation 8.2
GENERAL DESIGN REQUIREMENTS 8.2.1
Seismic Design Categories B and C 8.2.2
Seismic Design Categories D, E, and F 8.3
STRUCTURAL STEEL 8.3.1
Material properties for determination of required strength 8.4
COLD-FORM STEEL 8.4.1
Modifications to references 8.4.2
Light-frame walls 8.4.3
Prescriptive framing 8.4.4
Steel deck diaphragms 8.5
STEEL CABLES 8.6
RECOMMENDED PROVISIONS FOR BUCKLING-RESTRAINED BRACED
FRAMES 8.6.1
Symbols 8.6.2
Glossary 8.6.3
Buckling-restrained braced frames (BRBF) 8.7
RECOMMENDED PROVISIONS FOR SPECIAL STEEL PLATE WALLS
8.7.1
Symbols 8.7.2
Glossary 8.7.3
Scope 8.7.4
Webs 8.7.5
Connections of webs to boundary elements 8.7.6
Horizontal and vertical boundary elements (HBE and VBE) 9.1
GENERAL 9.1.1
Scope 9.1.2
References 9.1.3
General definitions 9.2
GENERAL DESIGN REQUIREMENTS 9.2.1
Classification of shear walls 9.2.2
Modifications to ACI 318 9.3
SEISMIC DESIGN CATEGORY B 9.3.1
Ordinary moment frames 9.4
SEISMIC DESIGN CATEGORY C 9.4.1
Classification of shear walls 9.4.2
Plain concrete 9.5
SEISMIC DESIGN CATEGORIES D, E, AND F 9.6
ACCEPTANCE CRITERIA FOR SPECIAL PRECAST STRUCTURAL WALLS
BASED ON VALIDATION TESTING 9.6.1
Notation 9.6.2
Definitions 9.6.3
Scope and general requirements 9.6.4
Design procedure 9.6.5
Test modules 9.6.6
Testing agency 9.6.7
Test method 9.6.8
Test report 9.6.9
Test module acceptance criteria 9.6.10
Reference 10.1.1
Scope 10.1.2
References 10.1.3
Definitions 10.1.4
Notation 10.5.1
Changes to nomenclature 10.5.2
Changes to definitions in the AISC Glossary 10.5.3
Changes to section 1-Scope 10.5.4
Changes to Section 2 - Referenced Specifications, Codes and Standards 10.5.5
Changes to Section 3 - Seismic Design Categories 10.5.6
Changes to Section 4 - Loads, Load Combinations and Nominal Strengths 10.5.7
Changes to Section 5.2 - Concrete and steel reinforcement 10.5.8
Changes to Section 6.3 - Composite Beams 10.5.9
Changes to Section 6.4 - Reinforced-Concrete-Encased Composite Columns 10.5.10
Changes to Section 6.4a - Ordinary Seismic System Requirements 10.5.11
Changes to Section 6.5 - Concrete-Filled Composite Columns 10.5.12
Changes to Section 6.5a - Concrete-Filled Composite Columns 10.5.13
Changes to Section 7.3 - Nominal Strength of Connections 10.5.14
Changes to Section 8.2 - Columns 10.5.15
Changes to Section 8.3 - Composite Beams 10.5.16
Changes to Section 8.4 - Partially Restrained (PR) Moment Connections 10.5.17
Changes to Section 9.3 - Beams 10.5.18
Changes to Section 9.4 - Moment Connections 10.5.19
Changes to Section 9.5 - Column-Beam Moment Ratio 10.5.20
Changes to Section 10.2 - Columns 10.5.21
Changes to Section 10.4 - Moment Connections 10.5.22
Changes to Section 11.4 - Moment Connections 10.5.23
Changes to Section 12.4 - Braces 10.5.24
Changes Title for Section 15.3 10.5.25
Changes Title for Section 16.3 10.5.26
Add New Section 15.4 10.5.27
Add New Section 16.4 11.1
GENERAL 11.1.1
Scope 11.1.2
References 11.2
GENERAL DESIGN REQUIREMENTS 11.2.1
Classification of shear walls 11.2.2
Modifications to ACI 530/ADCE 5/TMS 402 and ACI 530.1/ASCE 5/TMS 602 11.3
SPECIAL MOMENT FRAMES OF MASONRY 11.3.1
Calculation of required strength 11.3.2
Flexural yielding 11.3.3
Materials 11.3.4
Reinforcement 11.3.5
Beams 11.3.6
Columns 11.3.7
Beam-column intersections 11.4
GLASS-UNIT MASONRY AND MASONRY VENEER 11.4.1
Design lateral forces and displacements 11.4.2
Glass-unit masonry design 11.4.3
Masonry veneer design 11.5
PRESTRESSED MASONRY 11.5.1
12.1
GENERAL 12.1.1
Scope 12.1.2
References 12.1.3
Definitions 12.1.4
Notation 12.2
DESIGN METHODS 12.2.1
Seismic Design Categories B, C, and D 12.2.2
Seismic Design Categories E and F 12.2.3
Modifications to AF&PA SDPWS for Seismic Design Categories B, C, and D 12.2.4
Modifications to AF&PA SDPWS for Seismic Design Categories E, and F 12.3
GENERAL DESIGN REQUIREMENTS FOR ENGINEERED WOOD CONSTRUCTION
12.3.1
Framing 12.4
CONVENTIONAL LIGHT-FRAME CONSTRUCTION 12.4.1
Limitations 12.4.2
Braced walls 12.4.3
Detailing requirements 13.1
GENERAL 13.1.1
Scope 13.1.2
Definitions 13.1.3
Notation 13.2
GENERAL DESIGN REQUIREMENTS 13.2.1
Occupancy importance factor 13.2.2
Configuration 13.2.3
Ground motion 13.2.4
Procedure selection 13.2.5
Isolation system 13.2.6
Structural system 13.2.7
Elements of structures and nonstructural components 13.3
EQUIVALENT LATERAL FORCE PROCEDURE 13.3.1
Deformational characteristics of the isolation system 13.3.2
Minimum lateral displacements 13.3.3
Minimum distribution of forces 13.3.4
Vertical distribution of forces 13.3.5
Drift limits 13.4
DYNAMIC PROCEDURES 13.4.1
Modeling 13.4.2
Description of procedures 13.4.3
Minimum lateral displacements and forces 13.4.4Drift
limits 13.5
DESIGN REVIEW 13.6
TESTING 13.6.1
Prototype tests 13.6.2
Determination of force-deflection characteristics 13.6.3
Test specimen adequacy 13.6.4
Design properties of the isolation system 14.1
GENERAL 14.1.1
Scope 14.1.2
References 14.1.3
Definitions 14.1.4
Notation 14.1.5
Nonbuilding structures supported by other structures 14.2
GENERAL DESIGN REQUIREMENTS 14.2.1
Seismic Use Groups and importance factors 14.2.2
Ground motion 14.2.3
Design basis 14.2.4
Seismic-force-resisting system selection and limitations 14.2.5
Structural analysis procedure selection 14.2.6
Seismic weight 14.2.7
Rigid nonbuilding structures 14.2.8
Minimum base shear 14.2.9
Fundamental period 14.2.10
Vertical distribution of seismic forces 14.2.11
Deformation requirements 14.2.12
Nonbuilding structure classification 14.3
NONBUILDING STRUCTUTRES SIMILAR TO BUILDINGS 14.3.1
Electrical power generating facilities 14.3.2
Structural towers for tanks and vessels 14.3.3
Piers and wharves 14.3.4
Pipe racks 14.3.5
Steel storage tanks 14.4
NONBUILDING STRUCTURES NOT SIMILAR TO BUILDINGS 14.4.1
General 14.4.2
Earth retaining structures 14.4.3
Stacks and chimneys 14.4.4
Amusement structures 14.4.5
Special hydraulic structures 14.4.6
Secondary containment systems 14.4.7
Tanks and vessels 15.1
GENERAL 15.1.1
Scope 15.1.2
Definitions 15.1.3
Notation 15.2
GENERAL DESIGN REQUIREMENTS 15.2.1
Seismic Design Category A 15.2.2
System requirements 15.2.3
Ground motion 15.2.4
Procedure selection 15.2.5
Damping system 15.3
NONLINEAR PROCEDURES 15.3.1
Nonlinear response history procedure 15.3
2 Nonlinear static procedure 15.4
RESPONSE SPECTRUM PROCEDURE 15.4.1
Modeling 273 15.4.2
Seismic-force-resisting system 15.4.3
Damping system 15.5
EQUIVALENT LATERAL FORCE PROCEDURE 15.5.1
Modeling 15.5.2
Seismic-force-resisting system 15.5.3
Damping system 15.6
DAMPED RESPONSE MODIFICATION 15.6.1
Damping coefficient 15.6.2
Effective damping 15.6.3
Effective ductility demand 15.6.4
Maximum effective ductility demand 15.7
SEIMIC LOAD CONDITIONS AND ACCEPTANCE CRITERIA 15.7.1
Nonlinear procedures 15.7.2
Seismic-force-resisting system 15.7.3
Damping system 15.8
DESIGN REVIEW 15.9
TESTING 15.9.1
Prototype tests 15.9.2 Production testing |