ACI-349M-2006.pdf
ACI 349M-06 Code Requirements for Nuclear Safety-Related Concrete Structures (ACI 349M-06) and Commentary Reported by ACI Committee 349 Copyright American Concrete Institute Provided by IHS under license with ACI Licensee=HP Monitoring/1111111164 Not for Resale, 02/01/2009 00:00:21 MSTNo reproduction or networking permitted without license from IHS -,-,- American Concrete Institute ® Advancing concrete knowledge Code Requirements for Nuclear Safety-Related Concrete Structures and Commentary ISBN 978-0-87031-303-5 Copyright by the American Concrete Institute, Farmington Hills, MI. All rights reserved. This material may not be reproduced or copied, in whole or part, in any printed, mechanical, electronic, film, or other distribution and storage media, without the written consent of ACI. The technical committees responsible for ACI committee reports and standards strive to avoid ambiguities, omissions, and errors in these documents. 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Most ACI standards and committee reports are gathered together in the annually revised ACI Manual of Concrete Practice (MCP). American Concrete Institute 38800 Country Club Drive Farmington Hills, MI 48331 U.S.A. Phone:248-848-3700 Fax:248-848-3701 www.concrete.org Copyright American Concrete Institute Provided by IHS under license with ACI Licensee=HP Monitoring/1111111164 Not for Resale, 02/01/2009 00:00:21 MSTNo reproduction or networking permitted without license from IHS -,-,- ACI 349M-06 supersedes ACI 349/349R-01, was adopted November 7, 2006, and was published September 2008. Copyright © 2007, American Concrete Institute. All rights reserved including rights of reproduction and use in any form or by any means, including the making of copies by any photo process, or by electronic or mechanical device, printed, written, or oral, or recording for sound or visual reproduction or for use in any knowledge or retrieval system or device, unless permission in writing is obtained from the copyright proprietors. 349M-1 ACI Committee Reports, Guides, Standard Practices, and Commentaries are intended for guidance in planning, designing, executing, and inspecting construction. This document is intended for the use of individuals who are competent to evaluate the significance and limitations of its content and recommendations and who will accept responsibility for the application of the material it contains. The American Concrete Institute disclaims any and all responsibility for the stated principles. The Institute shall not be liable for any loss or damage arising therefrom. Reference to this document shall not be made in contract documents. If items found in this document are desired by the Architect/Engineer to be a part of the contract documents, they shall be restated in mandatory language for incorporation by the Architect/Engineer. Code Requirements for Nuclear Safety-Related Concrete Structures (ACI 349M-06) and Commentary An ACI Standard Reported by ACI Committee 349 ACI 349M-06 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-05)” 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-06).” 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: admixtures; aggregates; anchorage (structural); authority having jurisdiction (AHJ); beam-column frame; beams (supports); building codes; cements; cold weather construction; columns (supports); combined stress; composite construction (concrete and steel); composite construction (concrete to concrete); compressive strength; concrete construction; concretes; concrete cover; concrete slabs; construction joints; continuity (structural); cracking (fracturing); creep properties; curing; deep beams; deflection; drawings (drafting); earthquake-resistant structures; edge beams; embedded service ducts; flexural strength; floors; folded plates; footings; formwork (construction); frames; hot weather construction; inspection; joists; load tests (structural); loads (forces); mixing; mixture proportioning; modulus of elasticity; moments; nuclear power plants; nuclear reactor containments; nuclear reactor safety; nuclear reactors; pipe columns; pipes (tubes); placing; precast concrete; prestressed concrete; prestressing steels; quality control; reinforced concrete; reinforcing steels; roofs; safety; serviceability; shear strength; shearwalls; shells (structural forms); spans; specifications; splicing; strength; strength analysis; structural analysis; structural design; T-beams; temperature; torsion; walls; water; welded wire reinforcement. CONTENTS CODE Chapter 1General requirements, p. 349M-6 1.1Scope 1.2Drawings and specifications 1.3Inspection 1.4Approval of special systems of design or construction 1.5Quality assurance program Hansraj G. AsharPartha S. GhosalJagadish R. JoshiBozidar Stojadinovic Ranjit L. BandyopadhyayHerman L. Graves IIIRichard E. KlingnerBarendra K. Talukdar Peter J. CarratoOrhan GurbuzNam-Ho Lee Donald T. Ward Ronald A. CookJames A. HammellDan J. NausAndrew S. Whittaker Rolf EligehausenGunnar A. HarsteadDragos A. NutaAlbert Y. C. Wong Werner FuchsChristopher HeinzRichard S. OrrCharles A. Zalesiak Branko GalunicCharles J. Hookham Ronald J. Janowiak Chair Copyright American Concrete Institute Provided by IHS under license with ACI Licensee=HP Monitoring/1111111164 Not for Resale, 02/01/2009 00:00:21 MSTNo reproduction or networking permitted without license from IHS -,-,- 349M-2ACI STANDARD Chapter 2Notation and definitions, p. 349M-7 2.1Code notation 2.2Definitions Chapter 3Materials, p. 349M-17 3.1Tests of materials 3.2Cements 3.3Aggregates 3.4Water 3.5Steel reinforcement 3.6Admixtures 3.7Storage and identification of materials 3.8Referenced standards Chapter 4Durability requirements, p. 349M-21 4.1Water-cementitious material ratio 4.2Freezing and thawing exposures 4.3Sulfate exposures 4.4Corrosion protection of reinforcement Chapter 5Concrete quality, mixing, and placing, p. 349M-22 5.1General 5.2Selection of concrete proportions 5.3Proportioning on the basis of field experience or trial mixtures, or both 5.4Proportioning without field experience or trial mixtures 5.5Average compressive strength reduction 5.6Evaluation and acceptance of concrete 5.7Preparation of equipment and place of deposit 5.8Mixing 5.9Conveying 5.10Depositing 5.11Curing 5.12Cold weather requirements 5.13Hot weather requirements Chapter 6Formwork, embedded pipes, and construction joints, p. 349M-26 6.1Design of formwork 6.2Removal of forms, shores, and reshoring 6.3Conduits and pipes embedded in concrete 6.4Construction joints Chapter 7Details of reinforcement, p. 349M-28 7.1Standard hooks 7.2Minimum bend diameters 7.3Bending 7.4Surface conditions of reinforcement 7.5Placing reinforcement 7.6Spacing limits for reinforcement 7.7Concrete protection for reinforcement 7.8Special reinforcement details for columns 7.9Connections 7.10Lateral reinforcement for compression members 7.11Lateral reinforcement for flexural members 7.12Minimum reinforcement 7.13Requirements for structural integrity Chapter 8Analysis and designgeneral considerations, p. 349M-32 8.1Design methods 8.2Loading 8.3Methods of analysis 8.4Redistribution of negative moments in continuous flexural members 8.5Modulus of elasticity 8.6Stiffness 8.7Span length 8.8Columns 8.9Arrangement of live load 8.10T-beam construction 8.11Joist construction 8.12Separate floor finish Chapter 9Strength and serviceability requirements, p. 349M-34 9.1General 9.2Required strength 9.3Design strength 9.4Design strength for reinforcement 9.5Control of deflections Chapter 10Flexure and axial loads, p. 349M-37 10.1Scope 10.2Design assumptions 10.3General principles and requirements 10.4Distance between lateral supports of flexural members 10.5Minimum reinforcement of flexural members 10.6Distribution of flexural reinforcement in beams and one-way slabs 10.7Deep beams 10.8Design dimensions for compression members 10.9Limits for reinforcement of compression members 10.10Slenderness effects in compression members 10.11Magnified momentsgeneral 10.12Magnified momentsnonsway frames 10.13Magnified momentssway frames 10.14Axially loaded members supporting slab system 10.15Transmission of column loads through floor system 10.16Composite compression members 10.17Bearing strength Chapter 11Shear and torsion, p. 349M-42 11.1Shear strength 11.2Lightweight concrete 11.3Shear strength provided by concrete for non- prestressed members 11.4Shear strength provided by concrete for prestressed members 11.5Shear strength provided by shear reinforcement 11.6Design for torsion 11.7Shear-friction 11.8Deep beams 11.9Special provisions for brackets and corbels 11.10Special provisions for walls Copyright American Concrete Institute Provided by IHS under license with ACI Licensee=HP Monitoring/1111111164 Not for Resale, 02/01/2009 00:00:21 MSTNo reproduction or networking permitted without license from IHS -,-,- CODE REQUIREMENTS FOR NUCLEAR SAFETY-RELATED CONCRETE STRUCTURES349M-3 11.11Transfer of moments to columns 11.12Special provisions for slabs and footings Chapter 12Development and splices of reinforcement, p. 349M-51 12.1Development of reinforcementgeneral 12.2Development of deformed bars and deformed wire in tension 12.3Development of deformed bars and deformed wire in compression 12.4Development of bundled bars 12.5Development of standard hooks in tension 12.6Mechanical anchorage 12.7Development of welded deformed wire reinforce- ment in tension 12.8Development of welded plain wire reinforcement in tension 12.9Development of prestressing strand 12.10Development of flexural reinforcementgeneral 12.11Development of positive moment reinforcement 12.12Development of negative moment reinforcement 12.13Development of web reinforcement 12.14Splices of reinforcementgeneral 12.15Splices of deformed bars and deformed wire in tension 12.16Splices of deformed bars in compression 12.17Special splice requirements for columns 12.18Splices of welded deformed wire reinforcement in tension 12.19Splices of welded plain wire reinforcement in tension Chapter 13Two-way slab systems, p. 349M-56 13.1Scope 13.2Definitions 13.3Slab reinforcement 13.4Openings in slab systems 13.5Design procedures 13.6Direct design method 13.7Equivalent frame method Chapter 14Walls, p. 349M-62 14.1Scope 14.2General 14.3Minimum reinforcement 14.4Walls designed as compression members 14.5Empirical design method 14.6Nonbearing walls 14.7Walls as grade beams 14.8Alternative design of slender walls Chapter 15Footings, p. 349M-63 15.1Scope 15.2Loads and reactions 15.3Footings supporting circular or regular polygon- shaped columns or pedestals 15.4Moment in footings 15.5Shear in footings 15.6Development of reinforcement in footings 15.7Minimum footing depth 15.8Transfer of force at base of column, wall, or reinforced pedestal 15.9Sloped or stepped footings 15.10Combined footings and mats Chapter 16Precast concrete, p. 349M-65 16.1Scope 16.2General 16.3Distribution of forces among members 16.4Member design 16.5Structural integrity 16.6Connection and bearing design 16.7Items embedded after concrete placement 16.8Marking and identification 16.9Handling 16.10Strength evaluation of precast construction Chapter 17Composite concrete flexural members, p. 349M-67 17.1Scope 17.2General 17.3Shoring 17.4Vertical shear strength 17.5Horizontal shear strength 17.6Ties for horizontal shear Chapter 18Prestressed concrete, p. 349M-68 18.1Scope 18.2General 18.3Design assumptions 18.4Serviceability requirementsflexural members 18.5Permissible stresses in prestressing steel 18.6Loss of prestress 18.7Flexural strength 18.8Limits for reinforcement of flexural members 18.9Minimum bonded reinforcement 18.10Statically indeterminate structures 18.11Compression memberscombined flexure and axial loads 18.12Slab sy
