Table of Contents
TABLE OF CONTENTS 318/318R-4
ACI 318 Building Code and Commentary
CONTENTS
PART 1—GENERAL
CHAPTER 1—GENERAL REQUIREMENTS
1.1—Scope
1.2—Drawings and specifications
1.3—Inspection
1.4—Approval of special systems of design or
construction
CHAPTER 2—DEFINITIONS
PART 2—STANDARDS FOR TESTS AND MATERIALS
CHAPTER 3—MATERIALS
3.0—Notation
3.1—Tests of materials
3.2—Cements
3.3—Aggregates
3.4—Water
3.5—Steel reinforcement
3.6—Admixtures
3.7—Storage of materials
3.8—Standards cited in this code
PART 3—CONSTRUCTION REQUIREMENTS
CHAPTER 4—DURABILITY REQUIREMENTS
4.0—Notation
4.1—Water-cementitious materials ratio
4.2—Freezing and thawing exposures
4.3—Sulfate exposures
4.4—Corrosion protection of reinforcement
CHAPTER 5—CONCRETE QUALITY, MIXING, AND PLACING
5.0—Notation
5.1—General
5.2—Selection of concrete proportions
5.3—Proportioning on the basis of field experience or trial
mixtures, or both
5.4—Proportioning without field experience or trial mixtures
5.5—Average strength reduction
5.6—Evaluation and acceptance of concrete
5.7—Preparation of equipment and place of deposit
5.8—Mixing
5.9—Conveying
5.10—Depositing
5.11—Curing
5.12—Cold weather requirements
5.13—Hot weather requirements
CHAPTER 6—FORMWORK, EMBEDDED PIPES, AND
CONSTRUCTION JOINTS
6.1—Design of formwork
6.2—Removal of forms, shores, and reshoring
6.3—Conduits and pipes embedded in concrete
6.4—Construction joints
CHAPTER 7—DETAILS OF REINFORCEMENT
7.0—Notation
7.1—Standard hooks
7.2—Minimum bend diameters
7.3—Bending
7.4—Surface conditions of reinforcement
7.5—Placing reinforcement
7.6—Spacing limits for reinforcement
7.7—Concrete protection for reinforcement
7.8—Special reinforcement details for columns
7.9—Connections
7.10—Lateral reinforcement for compression members
7.11—Lateral reinforcement for flexural members
7.12—Shrinkage and temperature reinforcement
7.13—Requirements for structural integrity
TABLE OF CONTENTS 318/318R-5
ACI 318 Building Code and Commentary
PART 4—GENERAL REQUIREMENTS
CHAPTER 8—ANALYSIS AND DESIGN—
GENERAL CONSIDERATIONS
8.0—Notation
8.1—Design methods
8.2—Loading
8.3—Methods of analysis
8.4—Redistribution of negative moments in continuous
nonprestressed flexural members
8.5—Modulus of elasticity
8.6—Stiffness
8.7—Span length
8.8—Columns
8.9—Arrangement of live load
8.10—T-beam construction
8.11—Joist construction
8.12—Separate floor finish
CHAPTER 9—STRENGTH AND SERVICEABILITY
REQUIREMENTS
9.0—Notation
9.1—General
9.2—Required strength
9.3—Design strength
9.4—Design strength for reinforcement
9.5—Control of deflections
CHAPTER 10—FLEXURE AND AXIAL LOADS
10.0—Notation
10.1—Scope
10.2—Design assumptions
10.3—General principles and requirements
10.4—Distance between lateral supports of flexural
members
10.5—Minimum reinforcement of flexural members
10.6—Distribution of flexural reinforcement in beams and
one-way slabs
10.7—Deep flexural members
10.8—Design dimensions for compression members
10.9—Limits for reinforcement of compression members
10.10—Slenderness effects in compression members
10.11—Magnified moments—General
10.12—Magnified moments—Nonsway frames
10.13—Magnified moments—Sway frames
10.14—Axially loaded members supporting slab system
10.15—Transmission of column loads through floor
system
10.16—Composite compression members
10.17—Bearing strength
CHAPTER 11—SHEAR AND TORSION
11.0—Notation
11.1—Shear strength
11.2—Lightweight concrete
11.3—Shear strength provided by concrete for nonpre-stressed
members
11.4—Shear strength provided by concrete for pre-stressed
members
11.5—Shear strength provided by shear reinforcement
11.6—Design for torsion
11.7—Shear-friction
11.8—Special provisions for deep flexural members
11.9—Special provisions for brackets and corbels
11.10—Special provisions for walls
11.11—Transfer of moments to columns
11.12—Special provisions for slabs and footings
CHAPTER 12—DEVELOPMENT AND SPLICES
OF REINFORCEMENT
12.0—Notation
12.1—Development of reinforcement—General
12.2—Development of deformed bars and deformed wire
in tension
12.3—Development of deformed bars in compression
12.4—Development of bundled bars
12.5—Development of standard hooks in tension
12.6—Mechanical anchorage
12.7—Development of welded deformed wire fabric in
tension
12.8—Development of welded plain wire fabric in tension
12.9—Development of prestressing strand
12.10—Development of flexural reinforcement—General
12.11—Development of positive moment reinforcement
12.12—Development of negative moment reinforcement
12.13—Development of web reinforcement
12.14—Splices of reinforcement—General
12.15—Splices of deformed bars and deformed wire in
tension
12.16—Splices of deformed bars in compression
12.17—Special splice requirements for columns
12.18—Splices of welded deformed wire fabric in tension
12.19—Splices of welded plain wire fabric in tension
TABLE OF CONTENTS 318/318R-6
ACI 318 Building Code and Commentary
PART 5—STRUCTURAL SYSTEMS OR ELEMENTS
CHAPTER 13—TWO-WAY SLAB SYSTEMS
13.0—Notation
13.1—Scope
13.2—Definitions
13.3—Slab reinforcement
13.4—Openings in slab systems
13.5—Design procedures
13.6—Direct design method
13.7—Equivalent frame method
CHAPTER 14
14.0—Notation
14.1—Scope
14.2—General
14.3—Minimum reinforcement
14.4—Walls designed as compression members
14.5—Empirical design method
14.6—Nonbearing walls
14.7—Walls as grade beams
14.8—Alternative design of slender walls
CHAPTER 15—FOOTINGS
15.0—Notation
15.1—Scope
15.2—Loads and reactions
15.3—Footings supporting circular or regular polygon
shaped columns or pedestals
15.4—Moment in footings
15.5—Shear in footings
15.6—Development of reinforcement in footings
15.7—Minimum footing depth
15.8—Transfer of force at base of column, wall, or rein-forced
pedestal
15.9—Sloped or stepped footings
15.10—Combined footings and mats
CHAPTER 16—PRECAST CONCRETE
16.0—Notation
16.1—Scope
16.2—General
16.3—Distribution of forces among members
16.4—Member design
16.5—Structural integrity
16.6—Connection and bearing design
16.7—Items embedded after concrete placement
16.8—Marking and identification
16.9—Handling
16.10—Strength evaluation of precast construction
CHAPTER 17—COMPOSITE CONCRETE FLEXURAL MEMBERS
17.0—Notation
17.1—Scope
17.2—General
17.3—Shoring
17.4—Vertical shear strength
17.5—Horizontal shear strength
17.6—Ties for horizontal shear
CHAPTER 18—PRESTRESSED CONCRETE
18.0 —Notation
18.1 —Scope
18.2 —General
18.3 —Design assumptions
18.4 —Permissible stresses in concrete—Flexural
members
18.5 —Permissible stresses in prestressing tendons
18.6 —Loss of prestress
18.7 —Flexural strength
18.8 —Limits for reinforcement of flexural members
18.9 —Minimum bonded reinforcement
18.10—Statically indeterminate structures
18.11—Compression members—Combined flexure and
axial loads
18.12—Slab systems
18.13—Post-tensioned tendon anchorage zones
18.14—Design of anchorage zones for monostrand or
single 5/8 in. diameter bar tendons
18.15—Design of anchorage zones for multistrand ten-dons
18.16—Corrosion protection for unbonded prestressing
tendons
18.17—Post-tensioning ducts
18.18—Grout for bonded prestressing tendons
18.19—Protection for prestressing tendons
18.20—Application and measurement of prestressing
force
18.21—Post-tensioning anchorage zones and couplers
18.22—External post-tensioning
TABLE OF CONTENTS 318/318R-7
ACI 318 Building Code and Commentary
CHAPTER 19—SHELLS AND FOLDED PLATE MEMBERS
19.0—Notation
19.1—Scope and definitions
19.2—Analysis and design
19.3—Design strength of materials
19.4—Shell reinforcement
19.5—Construction
PART 6—SPECIAL CONSIDERATIONS
CHAPTER 20—STRENGTH EVALUATION OF
EXISTING STRUCTURES
20.0—Notation
20.1—Strength evaluation—General
20.2—Determination of required dimensions and material
properties
20.3—Load test procedure
20.4—Loading criteria
20.5—Acceptance criteria
20.6—Provision for lower load rating
20.7—Safety
CHAPTER 21—SPECIAL PROVISIONS FOR SEISMIC DESIGN
21.0—Notation
21.1—Definitions
21.2—General requirements
21.3—Flexural members of special moment frames
21.4—Special moment frame members subjected to
bending and axial load
21.5—Joints of special moment frames
21.6—Special reinforced concrete structural walls and
coupling beams
21.7—Structural diaphragms and trusses
21.8—Foundations
21.9—Frame members not proportioned to resist forces
induced by earthquake motions
21.10—Requirements for intermediate moment frames
PART 7—STRUCTURAL PLAIN CONCRETE
CHAPTER 22—STRUCTURAL PLAIN CONCRETE
22.0—Notation
22.1—Scope
22.2—Limitations
22.3—Joints
22.4—Design method
22.5—Strength design
22.6—Walls
22.7—Footings
22.8—Pedestals
22.9—Precast members
22.10—Plain concrete in earthquake-resisting structures
COMMENTARY REFERENCES
APPENDIXES
APPENDIX A—ALTERNATE DESIGN METHOD
A.0—Notation
A.1—Scope
A.2—General
A.3—Permissible service load stresses
A.4—Development and splices of reinforcement
A.5—Flexure
A.6—Compression members with or without flexure
A.7—Shear and torsion
APPENDIX B—UNIFIED DESIGN PROVISIONS FOR REINFORCED AND
PRESTRESSED CONCRETE FLEXURAL AND
COMPRESSION MEMBERS
B.1—Scope
TABLE OF CONTENTS 318/318R-8
ACI 318 Building Code and Commentary
APPENDIX C—ALTERNATIVE LOAD AND STRENGTH
REDUCTION FACTORS
C.1—General
APPENDIX D—NOTATION
APPENDIX E—STEEL REINFORCEMENT INFORMATION
INDEX