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ACI CODE-350.3-20: Code Requirements for Seismic Analysis and Design of Liquid-Containing Concrete Structures (ACI 350.3-20) and Commentary - with ERRATA as of January 20, 2022 >
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ACI CODE-350.3-20: Code Requirements for Seismic Analysis and Design of Liquid-Containing Concrete Structures (ACI 350.3-20) and Commentary - with ERRATA as of January 20, 2022, 2020
- TITLE PAGE
- PREFACE
- INTRODUCTION
- GENERAL COMMENTARY
- Chapter 1—General requirements [Go to Page]
- 2.2—Definitions
- 2.1—Code notation
- 1.4—Approval of special systems of design or construction
- 1.3—Inspection
- 1.2—Contract documents
- Chapter 3—materials [Go to Page]
- 3.10—Referenced standards
- 3.8—Admixtures
- 3.7—Fibers
- 3.6—Joint accessories
- 3.5—Steel reinforcement
- 3.4—Water
- 3.3—Aggregates
- 3.9—Storage of materials
- Chapter 4—durability requirements [Go to Page]
- 4.12—Joints
- 4.11—Tightness testing of structures
- 4.10—Protection systems
- 4.9—Additional requirements for protection against erosion
- 4.8—Additional requirements for protection against chemical attack
- 4.7—Additional requirements for corrosion protection of reinforcement and other metal embedments
- 4.6—Additional requirements for alkali-aggregate reactions
- 4.5—Additional requirements for sulfate exposures
- 4.4—Additional requirements for freezing-and-thawing exposures
- 4.3—Requirements for concrete mixtures
- 4.2—Exposure categories and classes
- Chapter 5—concrete quality, mixing, and placing [Go to Page]
- 5.15—Hot weather requirements
- 5.14—Cold weather requirements
- 5.13—Curing
- 5.12—Application of shotcrete
- 5.11—Depositing of concrete
- 5.10—Conveying concrete and wet-mix shotcrete
- 5.9—Mixing
- 5.8—Preparation of equipment and place of deposit
- 5.7—Evaluation and acceptance of concrete and shotcrete
- 5.6—Average compressive strength reduction for shotcrete
- 5.5—Average compressive strength reduction for concrete
- 5.4—Proportioning shotcrete on the basis of field experience or trial mixtures, or both
- 5.3—Proportioning concrete on the basis of field experience or trial mixtures, or both
- 5.2—Selection of proportions
- Chapter 6—formwork and embedments [Go to Page]
- 6.3—Embedments in concrete and shotcrete
- Chapter 7—joints [Go to Page]
- 7.5—Joint accessories
- 7.4—Movement joints
- 7.3—Crack-inducing joints
- 7.2—Construction joints
- Chapter 8—analysis and design – general considerations [Go to Page]
- 8.14—Separate floor finish
- 8.13—Joist construction
- 8.12—T-beam construction
- 8.11—Arrangement of live load
- 8.10—Columns
- 8.9—Span length
- 8.8—Effective stiffness to determine lateral deflections
- 8.7—Stiffness
- 8.6—Lightweight concrete
- 8.5—Modulus of elasticity
- 8.4—Redistribution of moments in continuous flexural members
- 8.3—Methods of analysis
- Chapter 9—strength and serviceability requirements [Go to Page]
- 9.5—Control of deflections
- 9.4—Design strength for reinforcement
- 9.3—Design strength
- Chapter 10—flexure and axial loads [Go to Page]
- 10.14—Bearing strength
- 10.13—Composite compression members
- 10.12—Transmission of column loads through floor system
- 10.11—Axially loaded members supporting slab system
- 10.10—Slenderness effects in compression members
- 10.9—Limits for reinforcement of compression members
- 10.8—Design dimensions for compression members
- 10.7—Deep beams
- 10.6—Distribution of flexural reinforcement
- 10.5—Minimum reinforcement of flexural members
- 10.4—Distance between lateral supports of flexural members
- 10.3—General principles and requirements
- Chapter 11—shear and torsion [Go to Page]
- 11.11—Provisions for slabs and footings
- 11.10—Transfer of moments to columns
- 11.9—Provisions for walls
- 11.8—Provisions for brackets and corbels
- 11.7—Deep beams
- 11.6—Shear-friction
- 11.5—Design for torsion
- 11.4—Shear strength provided by shear reinforcement
- 11.3—Shear strength provided by concrete for prestressed members
- 11.2—Shear strength provided by concrete for nonprestressed members
- CHAPTER 12—REINFORCEMENT—DETAILS, DEVELOPMENT, AND SPLICES [Go to Page]
- 12.14—Requirements for structural integrity
- 12.13—Shrinkage and temperature reinforcement
- 12.12—Connections
- 12.11—Reinforcement details for columns
- 12.10—Lateral reinforcement
- 12.9—Splices
- 12.8—Development
- 12.7—Concrete protection for reinforcement
- 12.6—Spacing limits for reinforcement
- 12.5—Placing reinforcement
- 12.4—Surface conditions of reinforcement
- 12.3—Bending
- CHAPTER 13—earthquake-resistant StructureS [Go to Page]
- 13.13—Members not designated as part of the seismic-force-resisting system
- 13.12—Foundations
- 13.11—Structural diaphragms and trusses
- 13.10—Special structural walls constructed using precast concrete
- 13.9—Special structural walls and coupling beams
- 13.8—Special moment frames constructed using precast concrete
- 13.7—Joints of special moment frames
- 13.6—Special moment frame members subjected to bending and axial load
- 13.5—Flexural members of special moment frames
- 13.4—Intermediate precast structural walls
- 13.3—Intermediate moment frames
- 13.2—Ordinary moment frames
- CHAPTER 14—TWO-WAY SLAB SYSTEMS [Go to Page]
- 14.7—Equivalent frame method
- 14.6—Direct design method
- 14.5—Design procedures
- 14.4—Openings in slab systems
- 14.3—Slab reinforcement
- 14.2—General
- CHAPTER 15—WALLS [Go to Page]
- 15.8—Walls as grade beams
- 15.7—Minimum wall thickness
- 15.6—Empirical Design Method
- 15.5—Walls designed as compression members
- 15.4—Minimum reinforcement
- CHAPTER 16—FOOTINGS [Go to Page]
- 16.10—Combined footings and mats
- 16.9—Sloped or stepped footings
- 16.8—Transfer of force at base of column, wall, or reinforced pedestal
- 16.7—Minimum footing depth
- 16.6—Development of reinforcement in footings
- 16.5—Shear in footings
- 16.4—Moment in footings
- 16.3—Footings supporting circular or regular polygon-shaped columns or pedestals
- CHAPTER 17—PRECAST CONCRETE [Go to Page]
- 17.10—Strength evaluation of precast construction
- 17.9—Handling
- 17.8—Marking and identification
- 17.7—Items embedded after concrete placement
- 17.6—Connection and bearing design
- 17.5—Structural integrity
- 17.4—Member design
- 17.3—Distribution of forces among members
- CHAPTER 18—COMPOSITE CONCRETE FLEXURAL MEMBERS [Go to Page]
- 18.6—Ties for horizontal shear
- 18.5—Horizontal shear strength
- 18.4—Vertical shear strength
- 18.3—Shoring
- CHAPTER 19—PRESTRESSED CONCRETE [Go to Page]
- 19.22—External post-tensioning
- 19.21—Post-tensioning anchorages and couplers
- 19.20—Application and measurement of prestressing force
- 19.19—Protection for prestressing steel
- 19.18—Grout for bonded tendons
- 19.17—Post-tensioning ducts
- 19.16—Corrosion protection for unbonded single-strand prestressing tendons
- 19.15—Design of anchorage zones for multistrand tendons
- 19.14—Design of anchorage zones for monostrand or single 5/8 in. diameter bar tendons
- 19.13—Post-tensioned tendon anchorage zones
- 19.12—Slab systems
- 19.11—Compression members—combined flexure and axial loads
- 19.10—Statically indeterminate structures
- 19.9—Minimum bonded reinforcement
- 19.8—Limits for reinforcement of flexural members
- 19.7—Flexural strength
- 19.6—Loss of prestress
- 19.5—Permissible stresses in prestressing steel
- 19.4—Serviceability requirements—flexural members
- 19.3—Design assumptions
- 19.2—General
- CHAPTER 20—SHELLS AND FOLDED PLATE MEMBERS [Go to Page]
- 20.5—Construction
- 20.4—Shell reinforcement
- 20.3—Design strength of materials
- 20.2—Analysis and design
- CHAPTER 21—LIQUID-CONTAINING GROUND-SUPPORTED SLABS [Go to Page]
- 21.7—Curing
- 21.6—Hydrostatic uplift
- 21.5—Joints
- 21.4—Reinforcement
- 21.3—Slab thickness
- 21.2—Slab support
- CHAPTER 22—STRENGTH EVALUATION AND CONDITION ASSESSMENT OF STRUCTURES [Go to Page]
- 22.7—Load testing
- 22.6—Evaluation report
- 22.5—Tightness testing
- 22.4—Field and laboratory testing
- 22.3—Condition survey of structures
- 22.2—Determination of required dimensions and material properties
- APPENDIX A—ALTERNATE DESIGN METHOD [Go to Page]
- A.7.9—Composite concrete flexural members
- A.7.8—Special provisions for other members
- A.7.7—Special provisions for slabs and footings
- A.7.6—Shear-friction
- A.7.5—Shear stress carried by shear reinforcement
- A.7.4—Shear stress carried by concrete
- A.7—Shear and torsion
- A.6—Compression members with or without flexure
- A.5—Flexure
- A.4—Development and splices of reinforcement
- A.3.3—Distribution of flexural reinforcement
- A.3—Allowable stresses at service loads
- A.2—General
- APPENDIX B—STRUT-AND-TIE MODELS [Go to Page]
- B.5—Strength of nodal zones
- B.4—Strength of ties
- B.3—Strength of struts
- B.2—Strut-and-tie model design procedure
- APPENDIX C—ALTERNATIVE PROVISIONS FOR REINFORCED AND PRESTRESSED CONCRETE FLEXURAL AND COMPRESSION MEMBERS [Go to Page]
- C.19.10—Statically indeterminate structures
- C.19.8—Limits for reinforcement of flexural members
- C.19.1—Scope
- C.10.3—General principles and requirements
- APPENDIX D—ALTERNATIVE LOAD FACTORS, STRENGTH REDUCTION FACTORS, AND DISTRIBUTION OF FLEXURAL REINFORCEMENT [Go to Page]
- D.10.6—Distribution of flexural reinforcement in beams and one-way slabs
- D.9.3—Design strength
- APPENDIX E—ANCHORING TO CONCRETE [Go to Page]
- E.9—Installation and inspection of anchors
- E.8—Required edge distances, spacings, and thicknesses to preclude splitting failure
- E.7—Interaction of tensile and shear forces
- E.6—Design requirements for shear loading
- E.5.4—Concrete side-face blowout strength of a headed anchor in tension
- E.5—Design requirements for tensile loading
- E.4—General requirements for strength of anchors
- E.3—General requirements
- E.2—Scope
- COMMENTARY REFERENCES
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- _Hlk42001986 [Go to Page]