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ASCE/SEI 7-10

Minimum Design Loads for Buildings and Other Structures

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Chapter 1 - General
- 1.1 - Scope
- 1.2 - Definitions and Symbols
  - 1.2.1 - Definitions.
  - 1.2.2 - Symbols.
- 1.3 - Basic Requirements
- 1.4 - General Structural Integrity
- 1.5 - Classification of Buildings and Other Structures
- 1.6 - Additions and Alterations to Existing Structures
- 1.7 - Load Tests
- 1.8 - Consensus Standards and Other Referenced Documents
Chapter 2 - Combinations of Loads
- 2.1 - General
- 2.2 - Symbols
- 2.3 - Combining Factored Loads Using Strength Design
- 2.4 - Combining Nominal Loads Using Allowable Stress Design
- 2.5 - Load Combinations for Extraordinary Events
Chapter 3 - Dead Loads, Soil Loads, and Hydrostatic Pressure
- 3.1 - Dead Loads
- 3.2 - Soil Loads and Hydrostatic Pressure
  - 3.2.1 - Lateral Pressures.
  - 3.2.2 - Uplift on Floors and Foundations.
Chapter 4 - Live Loads
- 4.1 - Definitions
- 4.2 - Loads Not Specified
- 4.3 - Uniformly Distributed Live Loads
- 4.4 - Concentrated Live Loads
- 4.5 - Loads on Handrail, Guardrail, Grab Bar and Vehicle Barrier Systems, and Fixed Ladders
- 4.6 - Impact Loads
- 4.7 - Reduction in Live Loads
- 4.8 - Reduction in Roof Live Loads
- 4.9 - Crane Loads
- 4.10 - Consensus Standards and Other Referenced Documents
Chapter 5 - Flood Loads
- 5.1 - General
- 5.2 - Definitions
- 5.3 - Design Requirements
- 5.4 - Loads During Flooding
- 5.5 - Consensus Standards and Other Referenced Documents
Chapter 6 - Reserved for Future Provisions
Chapter 7 - Snow Loads
- 7.1 - Symbols
- 7.2 - Ground Snow Loads, pg
- 7.3 - Flat Roof Snow Loads, pf
- 7.4 - Sloped Roof Snow Loads, ps
- 7.5 - Partial Loading
  - 7.5.1 - Continuous Beam Systems.
  - 7.5.2 - Other Structural Systems.
- 7.6 - Unbalanced Roof Snow Loads
- 7.7 - Drifts on Lower Roofs (Aerodynamic Shade)
  - 7.7.1 - Lower Roof of a Structure.
  - 7.7.2 - Adjacent Structures.
- 7.8 - Roof Projections and Parapets
- 7.9 - Sliding Snow
- 7.10 - Rain-on-Snow Surcharge Load
- 7.11 - Ponding Instability
- 7.12 - Existing Roofs
Chapter 8 - Rain Loads
- 8.1 - Symbols
- 8.2 - Roof Drainage
- 8.3 - Design Rain Loads
- 8.4 - Ponding Instability
- 8.5 - Controlled Drainage
Chapter 9 - Reserved for Future Provisions
Chapter 10 - Ice Loads—Atmospheric Icing
- 10.1 - General
- 10.2 - Definitions
- 10.3 - Symbols
- 10.4 - Ice Loads Due To Freezing Rain
- 10.5 - Wind on Ice-Covered Structures
- 10.6 - Design Temperatures for Freezing Rain
- 10.7 - Partial Loading
- 10.8 - Design Procedure
- 10.9 - Consensus Standards And Other Referenced Documents
Chapter 11 - Seismic Design Criteria
- 11.1 - General
- 11.2 - Definitions
- 11.3 - Symbols
- 11.4 - Seismic Ground Motion Values
- 11.5 - Importance Factor and Risk Category
  - 11.5.1 - Importance Factor.
  - 11.5.2 - Protected Access for Risk Category IV.
- 11.6 - Seismic Design Category
- 11.7 - Design Requirements for Seismic Design Category A
- 11.8 - Geologic Hazards and Geotechnical Investigation
Chapter 12 - Seismic Design Requirements for Building Structures
- 12.1 - Structural Design Basis
- 12.2 - Structural System Selection
- 12.3 - Diaphragm Flexibility, Configuration Irregularities, And Redundancy
- 12.4 - Seismic Load Effects and Combinations
- 12.5 - Direction of Loading
- 12.6 - Analysis Procedure Selection
- 12.7 - Modeling Criteria
- 12.8 - Equivalent Lateral Force Procedure
- 12.9 - Modal Response Spectrum Analysis
- 12.10 - Diaphragms, Chords, And Collectors
  - 12.10.1 - Diaphragm Design.
    - 12.10.1.1 - Diaphragm Design Forces.
  - 12.10.2 - Collector Elements.
    - 12.10.2.1 - Collector Elements Requiring Load Combinations with Overstrength Factor for Seismic Design Categories C through F.
- 12.11 - Structural Walls and Their Anchorage
  - 12.11.1 - Design for Out-of-Plane Forces.
  - 12.11.2 - Anchorage of Structural Walls and Transfer of Design Forces into Diaphragms
    - 12.11.2.1 - Wall Anchorage Forces.
    - 12.11.2.2 - Additional Requirements for Diaphragms in Structures Assigned to Seismic Design Categories C through F
- 12.12 - Drift and Deformation
- 12.13 - Foundation Design
- 12.14 - Simplified Alternative Structural Design Criteria For Simple Bearing Wall or Building Frame Systems
Chapter 13 - Seismic Design Requirements for Nonstructural Components
- 13.1 - General
- 13.2 - General Design Requirements
- 13.3 - Seismic Demands on Nonstructural Components
- 13.4 - Nonstructural Component Anchorage
- 13.5 - Architectural Components
- 13.6 - Mechanical and Electrical Components
Chapter 14 - Material Specific Seismic Design and Detailing Requirements
- 14.0 - Scope
- 14.1 - Steel
- 14.2 - Concrete
- 14.3 - Composite Steel and Concrete Structures
- 14.4 - Masonry
- 14.5 - Wood
  - 14.5.1 - Reference Documents.
Chapter 15 - Seismic Design Requirements For Nonbuilding Structures
- 15.1 - General
- 15.2 - Reference Documents
- 15.3 - Nonbuilding Structures Supported By Other Structures
- 15.4 - Structural Design Requirements
- 15.5 - Nonbuilding Structures Similar To Buildings.
- 15.6 - General Requirements For Nonbuilding Structures Not Similar To Buildings
- 15.7 - Tanks And Vessels
Chapter 16 - Seismic Response History Procedures
- 16.1 - Linear Response History Procedure
- 16.2 - Nonlinear Response History Procedure
Chapter 17 - Seismic Design Requirements for Seismically Isolated Structures
- 17.1 - General
- 17.2 - General Design Requirements
- 17.3 - Ground Motion for Isolated Systems
  - 17.3.1 - Design Spectra.
  - 17.3.2 - Ground Motion Histories.
- 17.4 - Analysis Procedure Selection
  - 17.4.1 - Equivalent Lateral Force Procedure.
  - 17.4.2 - Dynamic Procedures.
    - 17.4.2.1 - Response-Spectrum Procedure.
    - 17.4.2.2 - Response-History Procedure.
- 17.5 - Equivalent Lateral Force Procedure
- 17.6 - Dynamic Analysis Procedures
- 17.7 - Design Review
- 17.8 - Testing
Chapter 18 - Seismic Design Requirements for Structures with Damping Systems
- 18.1 - General
- 18.2 - General Design Requirements
- 18.3 - Nonlinear Procedures
  - 18.3.1 - Nonlinear Response-History Procedure.
    - 18.3.1.1 - Damping Device Modeling.
    - 18.3.1.2 - Response Parameters.
  - 18.3.2 - Nonlinear Static Procedure.
- 18.4 - Response-Spectrum Procedure
- 18.5 - Equivalent Lateral Force Procedure
- 18.6 - Damped Response Modification
- 18.7 - Seismic Load Conditions and Acceptance Criteria
  - 18.7.1 - Nonlinear Procedures.
  - 18.7.2 - Response-Spectrum and Equivalent Lateral Force Procedures.
- 18.8 - Design Review
- 18.9 - Testing
  - 18.9.1 - Prototype Tests.
  - 18.9.2 - Production Testing.
Chapter 19 - Soil-Structure Interaction for Seismic Design
- 19.1 - General
- 19.2 - Equivalent Lateral Force Procedure
- 19.3 - Modal Analysis Procedure
Chapter 20 - Site Classification Procedure for Seismic Design
- 20.1 - Site Classification
- 20.2 - Site Response Analysis for Site Class F Soil
- 20.3 - Site Class Definitions
- 20.4 - Definitions of Site Class Parameters
Chapter 21 - Site-Specific Ground Motion Procedures for Seismic Design
- 21.1 - Site Response Analysis
- 21.2 - Risk-Targeted Maximum Considered Earthquake ( MCER) Ground Motion Hazard Analysis
- 21.3 - Design Response Spectrum
- 21.4 - Design Acceleration Parameters
- 21.5 - Maximum Considered Earthquake Geometric Mean ( MCEG) Peak Ground Acceleration
Chapter 22 - Seismic Ground Motion Long-Period Transition and Risk Coefficient Maps
Chapter 23 - Seismic Design Reference Documents
- 23.1 - Consensus Standards and Other Reference Documents
Chapter 24 - RESERVED FOR FUTURE PROVISIONS
Chapter 25 - RESERVED FOR FUTURE PROVISIONS
Chapter 26 - Wind Loads: General Requirements
- 26.1 - Procedures
  - 26.1.1 - Scope.
  - 26.1.2 - Permitted Procedures.
    - 26.1.2.1 - Main Wind-Force Resisting System (MWFRS).
    - 26.1.2.2 - Components and Cladding.
- 26.2 - Definitions
- 26.3 - Symbols
- 26.4 - General
- 26.5 - Wind Hazard Map
- 26.6 - Wind Directionality
- 26.7 - Exposure
- 26.8 - Topographic Effects.
  - 26.8.1 - Wind Speed-Up over Hills, Ridges, and Escarpments.
  - 26.8.2 - Topographic Factor.
- 26.9 - Gust Effects
- 26.10 - Enclosure Classification
- 26.11 - Internal Pressure Coefficient
  - 26.11.1 - Internal Pressure Coefficients.
    - 26.11.1.1 - Reduction Factor for Large Volume Buildings, Ri.
Chapter 27 - Wind Loads On Buildings—MWFRS (Directional Procedure)
- 27.1 - Scope
- Part 1: Enclosed, Partially Enclosed, and Open Buildings of All Heights
- Part 2: Enclosed Simple Diaphragm Buildings with h≤160ft (48.8 m)
  - 27.5 - General Requirements
  - 27.6 - Wind Loads—Main Wind Force-Resisting System
Chapter 28 - Wind Loads On Buildings—MWFRS (Envelope Procedure)
- 28.1 - Scope
- Part 1: Enclosed and Partially Enclosed Low-Rise Buildings
- Part 2: Enclosed Simple Diaphragm Low-Rise Buildings
  - 28.5 - General Requirements
    - 28.5.1 - Wind Load Parameters Specified in Chapter 26.
  - 28.6 - Wind Loads—Main Wind-Force Resisting System
Chapter 29 - Wind Loads On Other Structures and Building Appurtenances—MWFRS
- 29.1 - Scope
- 29.2 - General Requirements
  - 29.2.1 - Wind Load Parameters Specified in Chapter 26.
- 29.3 - Velocity Pressure
  - 29.3.1 - Velocity Pressure Exposure Coefficient.
  - 29.3.2 - Velocity Pressure.
- 29.4 - Design Wind Loads—Solid Freestanding Walls and Solid Signs
  - 29.4.1 - Solid Freestanding Walls and Solid Freestanding Signs, Other Structures.
  - 29.4.2 - Solid Attached Signs.
- 29.5 - Design Wind Loads—Other Structures
  - 29.5.1 - Rooftop Structures And Equipment For Buildings With h≤60ft (18.3 m).
- 29.6 - Parapets
- 29.7 - Roof Overhangs
- 29.8 - Minimum Design Wind Loading
Chapter 30 - Wind Loads – Components and Cladding (C&C)
- 30.1 - Scope
- 30.2 - General Requirements
- 30.3 - Velocity Pressure
  - 30.3.1 - Velocity Pressure Exposure Coefficient.
  - 30.3.2 - Velocity Pressure.
- Part 1: Low-Rise Buildings
  - 30.4 - Building Types
    - 30.4.1 - Conditions.
    - 30.4.2 - Design Wind Pressures.
- Part 2: Low-Rise Buildings (Simplified)
  - 30.5 - Building Types
    - 30.5.1 - Conditions.
    - 30.5.2 - Design Wind Pressures.
- Part 3: Buildings with h>60ft (18.3 m)
  - 30.6 - Building Types
    - 30.6.1 - Conditions.
    - 30.6.2 - Design Wind Pressures.
- Part 4: Buildings with h≤160ft (48.8 m) (Simplified)
  - 30.7 - Building Types
    - 30.7.1 - Wind Loads—Components and Cladding
- Part 5: Open Buildings
  - 30.8 - Building Types
    - 30.8.1 - Conditions.
    - 30.8.2 - Design Wind Pressures.
- Part 6: Building Appurtenances and Rooftop Structures and Equipment
Chapter 31 - Wind Tunnel Procedure
- 31.1 - Scope
- 31.2 - Test Conditions
- 31.3 - Dynamic Response
- 31.4 - Load Effects
- 31.5 - Wind-Borne Debris
Appendix 11A - Quality Assurance Provisions
- 11A.1 - Quality Assurance
- 11A.2 - Testing
- 11A.3 - Structural Observations
- 11A.4 - Reporting and Compliance Procedures
Appendix 11B - Existing Building Provisions
- 11B.1 - Scope
- 11B.2 - Structurally Independent Additions
- 11B.3 - Structurally Dependent Additions
- 11B.4 - Alterations
- 11B.5 - Change of Use
Appendix C - Serviceability Considerations
- C.1 - Serviceability Considerations
- C.2 - Deflection, Vibration, and Drift
- C.3 - Design for Long-Term Deflection
- C.4 - Camber
- C.5 - Expansion and Contraction
- C.6 - Durability
Appendix D - Buildings Exempted from Torsional Wind Load Cases
- D1.0 - Scope
- D1.1 - One and Two Story Buildings Meeting the Following Requirements
- D1.2 - Buildings Controlled by Seismic Loading
  - D1.2.1 - Buildings with Diaphragms at Each Level that Are Not Flexible.
  - D1.2.2 - Buildings with Diaphragms at Each Level that Are Flexible.
- D1.3 - Buildings Classified as Torsionally Regular Under Wind Load
- D1.4 - Buildings with Diaphragms that are Flexible and Designed for Increased Wind Loading
- D1.5 - Class 1 and Class 2 Simple Diaphragm Buildings ( H≤160ft.) Meeting the Following Requirements (Refer to Section 27.5.2)

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ASCE/SEI 7-10

Minimum Design Loads for Buildings and Other Structures

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Provisions

Seismic Ground Motion Long-Period Transition and Risk Coefficient Maps

Commentary

Seismic Ground Motion Long-Period Transition and Risk Coefficient Maps

Seismic Ground Motion Long-Period Transition and Risk Coefficient
Maps

Seismic Ground Motion Long-Period Transition and Risk Coefficient
Maps