ACI 349M 13:2013 Edition

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349M-13 Metric Code Requirements for Nuclear Safety-Related Concrete Structures and Commentary, First Printing – Errata as of 8/8/2017

Published By	Publication Date	Number of Pages
ACI	2013	200

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Description

This standard covers the proper design and construction of concrete structures that form part of a nuclear power plant and that have nuclear safety-related functions, but does not cover concrete reactor vessels and concrete containment structures (as defined by Joint ACI-ASME Committee 359). The structures covered by the Code include concrete structures inside and outside the containment system. This Code may be referenced and applied subject to agreement between the owner and the Regulatory Authority. All notation sections have been removed from the beginning of each chapter and consolidated into one list in Chapter 2. The format of this Code is based on the “Building Code Requirements for Structural Concrete (ACI 318M-08)” and incorporates recent revisions of that standard. The commentary, which is presented after the Code, discusses some of the considerations of ACI Committee 349 in developing “Code Requirements for Nuclear Safety-Related Concrete Structures (ACI 349M-13).” This information is provided in the commentary because the Code is written as a legal document and therefore cannot present background details or suggestions for carrying out its requirements. Keywords: anchorage; authority having jurisdiction (AHJ); beam-column frame; beams; building codes; columns; composite construction; concrete cover; cracking (fracturing); creep; curing; deep beams; deflection; earthquake-resistant structures; floors; folded plates; footings; formwork; inspection; joints; joists; load tests; loads; mixture proportioning; modulus of elasticity; nuclear power plants; nuclear reactor containments; nuclear reactor safety; nuclear reactors; precast concrete; prestressed concrete; quality control; reinforced concrete; safety; serviceability; shear strength; shearwalls; shells; slabs; specifications; splicing; structural analysis; structural design; temperature; torsion; walls.

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PDF Pages	PDF Title
3	TITLE PAGE
9	INTRODUCTION
11	CHAPTER 1—GENERAL REQUIREMENTS 1.1—Scope
12	1.2—Drawings and specifications
13	1.3—Inspection
14	1.4—Approval of special systems of design or construction 1.5—Quality assurance program References, Chapter 1
16	CHAPTER 2—NOTATION AND DEFINITIONS 2.1—Code notation
24	2.2—Definitions
32	CHAPTER 3—MATERIALS 3.1—Tests of materials 3.3—Aggregates
33	3.4—Water 3.5—Steel reinforcement
35	3.6—Admixtures 3.7—Storage and identification of materials
36	3.8—Referenced standards
38	References, Chapter 3
39	CHAPTER 4—DURABILITY REQUIREMENTS 4.1—General 4.2—Exposure categories and classes 4.3—Requirements for concrete mixtures 4.4—Additional requirements for freezing-and-thawing exposure 4.5—Alternative cementitious materials for sulfate exposure
40	CHAPTER 5—CONCRETE QUALITY, MIXING, AND PLACING 5.1—General 5.2—Selection of concrete proportions
41	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 compressive strength reduction 5.6—Evaluation and acceptance of concrete
44	5.7—Preparation of equipment and place of deposit 5.8—Mixing 5.9—Conveying 5.10—Depositing
45	5.11—Curing
46	5.12—Cold weather requirements 5.13—Hot weather requirements References, Chapter 5
47	CHAPTER 6—FORMWORK, EMBEDMENTS, AND CONSTRUCTION JOINTS
49	Referenced standards, Chapter 6
50	CHAPTER 7—DETAILS OF REINFORCEMENT 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
51	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—Minimum reinforcement
52	7.13—Requirements for structural integrity References, Chapter 7
53	CHAPTER 8—ANALYSIS AND DESIGN—GENERAL CONSIDERATIONS 8.1—Design methods 8.2—Loading 8.3—Methods of analysis 8.4—Redistribution of moments in continuous flexural members 8.5—Modulus of elasticity 8.6—Not used 8.7—Stiffness
54	8.8—Effective stiffness to determine lateral deflections 8.9—Span length 8.10—Columns 8.11—Arrangement of live load 8.12—T-beam construction 8.13—Joist construction 8.14—Separate floor finish R8.14—Separate floor finish
55	CHAPTER 9—STRENGTH AND SERVICEABILITY REQUIREMENTS 9.1—General
58	9.2—Required strength
61	9.3—Design strength
62	9.4—Design strength for reinforcement 9.5—Control of deflections
67	References, Chapter 9
69	CHAPTER 10—FLEXURE AND AXIAL LOADS 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 beams 10.8—Design dimensions for compression members
70	10.9—Limits for reinforcement of compression members 10.10—Slenderness effects in compression members 10.11—Axially loaded members supporting slab system 10.12—Transmission of column loads through floor system 10.13—Composite compression members 10.14—Bearing strength
71	CHAPTER 11—SHEAR AND TORSION 11.1—Shear strength 11.2—Shear strength provided by concrete for nonprestressed members 11.3—Shear strength provided by concrete for prestressed members 11.4—Shear strength provided by shear reinforcement 11.5—Design for torsion 11.6—Shear-friction 11.7—Deep beams 11.8—Provisions for brackets and corbels 11.9—Provisions for walls
72	11.10—Transfer of moments to columns 11.11—Provisions for slabs and footings
73	References, Chapter 11
74	CHAPTER 12—DEVELOPMENT AND SPLICES OF REINFORCEMENT 12.1—Development of reinforcement—General 12.2—Development of deformed bars and deformed wire in tension 12.3—Development of deformed bars and deformed wire in compression 12.4—Development of bundled bars 12.5—Development of standard hooks in tension
75	12.6—Development of headed and mechanically anchored deformed bars in tension 12.7—Development of welded deformed wire reinforcement in tension 12.8—Development of welded plain wire reinforcement 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
76	12.15—Splices of deformed bars and deformed wire in tension
77	12.16—Splices of deformed bars in compression 12.17—Special splice requirements for columns 12.18—Splices of welded deformed wire reinforcement in tension 12.19—Splices of welded plain wire reinforcement in tension
78	CHAPTER 13—TWO-WAY SLAB SYSTEMS 13.1—Scope 13.2—General 13.3—Slab reinforcement 13.4—Openings in slab systems 13.5—Design procedures 13.6—Direct design method 13.7—Equivalent frame method
79	CHAPTER 14—WALLS 14.1—Scope 14.2—General 14.3—Minimum reinforcement 14.4—Walls designed as compression members 14.5—Empirical design method
80	14.6—Nonbearing walls 14.7—Walls as grade beams 14.8—Alternative design of slender walls
81	CHAPTER 15—FOOTINGS 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 reinforced pedestal 15.9—Sloped or stepped footings 15.10—Combined footings and mats
82	CHAPTER 16—PRECAST CONCRETE 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
83	CHAPTER 17—COMPOSITE CONCRETE FLEXURAL MEMBERS 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
84	CHAPTER 18–—PRESTRESSED CONCRETE 18.1—Scope 18.2—General 18.3—Design assumptions 18.4—Serviceability requirements—Flexural members 18.5—Permissible stresses in prestressing steel 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
85	18.12—Slab systems 18.13—Post-tensioned tendon anchorage zones 18.14—Intentionally left blank 18.15—Intentionally left blank 18.16—Corrosion protection for unbonded tendons 18.17—Post-tensioning ducts 18.18—Grout for bonded tendons 18.19—Protection for prestressing steel 18.20—Application and measurement of prestressing force
86	18.21—Post-tensioning anchorages and couplers 18.22—External post-tensioning
87	CHAPTER 19—SHELLS 19.1—Scope and definitions 19.2—General
88	19.3—Design strength of materials
89	19.4—Section design and reinforcement requirements 19.5—Construction
90	CHAPTER 20—STRENGTH EVALUATION OF EXISTING STRUCTURES 20.1—Strength evaluation—General 20.2—Determination of required dimensions and material properties
92	20.3—Load test procedure 20.4—Loading criteria 20.5—Acceptance criteria
93	20.6—Provision for lower load rating 20.7—Safety
94	References, Chapter 20
95	CHAPTER 21—PROVISIONS FOR EARTHQUAKE-RESISTANT DESIGN 21.1—General requirements
98	21.2—Intentionally left blank 21.3—Intentionally left blank 21.4—Intentionally left blank 21.5—Flexural members of moment frames
104	21.6—Moment frame members subjected to bending and axial load
108	21.7—Joints of moment frames
111	21.8—Special moment frames constructed using precast concrete 21.9—Special structural walls and coupling beams
119	21.10—Special structural walls constructed using precast concrete
120	21.11—Structural diaphragms
124	21.12—Foundations
126	References, Chapter 21
130	CHAPTER 22—STRUCTURAL PLAIN CONCRETE
131	APPENDIX A—STRUT-AND-TIE MODELS A.1—Definitions A.2–—Strut-and-tie model design procedure A.3—Strength of struts A.4—Strength of ties A.5—Strength of nodal zones
132	APPENDIX B—ALTERNATIVE PROVISIONS FOR REINFORCED AND PRESTRESSED CONCRETE FLEXURAL AND COMPRESSION MEMBERS
133	APPENDIX C—ALTERNATIVE LOAD AND STRENGTH-REDUCTION FACTORS C.9.1—Scope C.9.2—Required strength
135	C.9.3—Design strength
136	APPENDIX D—ANCHORING TO CONCRETE D.1—Definitions
138	D.2—Scope
140	D.3—General requirements
143	D.4—General requirements for strength of anchors
148	D.5—Design requirements for tensile loading
157	D.6—Design requirements for shear loading
166	D.7—Interaction of tensile and shear forces D.8—Required edge distances, spacings, and thicknesses to preclude splitting failure
167	D.9—Installation of anchors
168	D.10—Structural plates, shapes, and specialty inserts D.11—Shear strength of embedded plates and shear lugs
170	D.12—Grouted embedments
171	References, Appendix D
173	APPENDIX E—THERMAL CONSIDERATION E.1—Scope
175	E.2—Definitions (moved to Chapter 2) E.3—General design requirements
177	E.4—Concrete temperatures
178	References, Appendix E
179	APPENDIX F—SPECIAL PROVISIONS FOR IMPULSIVE AND IMPACTIVE EFFECTS F.1—Scope F.2—Dynamic strength increase
180	F.3—Deformation
185	F.4—Requirements to assure ductility
186	F.5—Shear strength
187	F.6—Impulsive effects
189	F.7—Impactive effects
190	F.8—Impactive and impulsive loads
192	References, Appendix F
194	SUMMARY OF CHANGES FOR ACI 349-06 CODE

Additional information

Standard Title	349M-13 Metric Code Requirements for Nuclear Safety-Related Concrete Structures and Commentary, First Printing – Errata as of 8/8/2017
Published Code	ACI
Publication Date	2013
Pages Count	200

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ACI 349M 13:2013 Edition

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