318M 99 318RM 99 BUILDING CODE REQUIREMENTS FOR STRUCTURAL

318m 99 318rm 99 Building Code Requirements For Structural-Free PDF

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INTRODUCTION 318M 318RM 1,BUILDING CODE REQUIREMENTS FOR. STRUCTURAL CONCRETE ACI 318M 99,AND COMMENTARY ACI 318RM 99. REPORTED BY ACI COMMITTEE 318, The code portion of this document covers the proper design and construction of buildings of structural concrete The. code has been written in such form that it may be adopted by reference in a general building code and earlier editions. have been widely used in this manner, Among the subjects covered are drawings and specifications inspection materials durability requirements concrete. quality mixing and placing formwork embedded pipes and construction joints reinforcement details analysis and. design strength and serviceability flexural and axial loads shear and torsion development and splices of reinforce. ment slab systems walls footings precast concrete composite flexural members prestressed concrete shells and fold. ed plate members strength evaluation of existing structures special provisions for seismic design structural plain. concrete an alternate design method in Appendix A unified design provisions in Appendix B and alternative load and. strength reduction factors in Appendix C, The quality and testing of materials used in construction are covered by reference to the appropriate ASTM standard.
specifications Welding of reinforcement is covered by reference to the appropriate ANSI AWS standard. Because the ACI Building Code is written as a legal document so that it may be adopted by reference in a general build. ing code it cannot present background details or suggestions for carrying out its requirements or intent It is the function. of this commentary to fill this need, The commentary discusses some of the considerations of the committee in developing the code with emphasis given to. the explanation of new or revised provisions that may be unfamiliar to code users. References to much of the research data referred to in preparing the code are cited for the user desiring to study indi. vidual questions in greater detail Other documents that provide suggestions for carrying out the requirements of the. code are also cited, Keywords admixtures aggregates anchorage structural beam column frame beams supports building codes cements cold weather construction col. umns supports combined stress composite construction concrete and steel composite construction concrete to concrete compressive strength concrete. construction concretes concrete slabs construction joints continuity structural contraction joints cover curing deep beams deflections drawings earth. quake resistant structures embedded service ducts flexural strength floors folded plates footings formwork construction frames hot weather construction. inspection isolation joints joints junctions joists lightweight concretes loads forces load tests structural materials mixing mix proportioning modulus. of elasticity moments pipe columns pipes tubing placing plain concrete precast concrete prestressed concrete prestressing steels quality control rein. forced concrete reinforcing steels roofs serviceability shear strength shearwalls shells structural forms spans specifications splicing strength strength. analysis stresses structural analysis structural concrete structural design structural integrity T beams torsion walls water welded wire fabric. ACI 318M 99 was adopted as a standard of the American Concrete Insti any loss or damage arising therefrom Reference to this commentary shall not. tute March 18 1999 to supersede ACI 318M 95 in accordance with the In be made in contract documents If items found in this Commentary are de. stitute s standardization procedure sired by the Architect Engineer to be a part of the contract documents they. Vertical lines in the margins indicate the 1999 code and commentary shall be restated in mandatory language for incorportation by the Architect. changes Engineer, ACI Committee Reports Guides Standard Practices and Commentaries Copyright 1999 American Concrete Institute. are intended for guidance in planning designing executing and inspecting All rights reserved including rights of reproduction and use in any form. construction This Commentary is intended for the use of individuals who or by any means including the making of copies by any photo process or. are competent to evaluate the significance and limitations of its content and by any electronic or mechanical device printed or written or oral or record. recommendations and who will accept responsibility for the application of ing for sound or visual reproduction or for use in any knowledge or retrieval. the material it contains The American Concrete Institute disclaims any and system or device unless permission in writing is obtained from the copy. all responsibility for the stated principles The Institute shall not be liable for right proprietors. ACI 318 Building Code and Commentary,318M 318RM 2 INTRODUCTION. The 1999 ACI Building Code and Commentary are presented in a side by side column format with code text. placed in the left column and the corresponding commentary text aligned in the right column To further distin. guish the Code from the Commentary the Code has been printed in Helvetica the same type face in which this. paragraph is set Vertical lines in the margins indicate changes from ACI 318M 95. This paragraph is set in Times Roman and all portions of the text exclusive to the Commentary are printed in this type face. Commentary section numbers are preceded by an R to further distinguish them from Code section numbers. INTRODUCTION necessary to protect the public as stated in the code Howev. er lower standards are not permitted, This commentary discusses some of the considerations of.
Committee 318 in developing the provisions contained in The commentary directs attention to other documents that. Building Code Requirements for Structural Concrete ACI provide suggestions for carrying out the requirements and in. 318M 99 hereinafter called the code or the 1999 code tent of the code However those documents and the com. mentary are not a part of the code, Emphasis is given to the explanation of new or revised pro. visions that may be unfamiliar to code users In addition The code has no legal status unless it is adopted by the gov. comments are included for some items contained in previous ernment bodies having the police power to regulate building. editions of the code to make the present commentary inde design and construction Where the code has not been adopt. pendent of the commentary for ACI 318M 95 Comments on ed it may serve as a reference to good practice even though. specific provisions are made under the corresponding chap it has no legal status. ter and section numbers of the code, The code provides a means of establishing minimum stan. The commentary is not intended to provide a complete his dards for acceptance of designs and construction by a legally. torical background concerning the development of the ACI appointed building official or his designated representatives. Building Code nor is it intended to provide a detailed r The code and commentary are not intended for use in settling. sum of the studies and research data reviewed by the com disputes between the owner engineer architect contractor or. mittee in formulating the provisions of the code However their agents subcontractors material suppliers or testing agen. references to some of the research data are provided for those cies Therefore the code cannot define the contract responsibil. who wish to study the background material in depth ity of each of the parties in usual construction General. references requiring compliance with the code in the job speci. As the name implies Building Code Requirements for fications should be avoided since the contractor is rarely in a po. Structural Concrete ACI 318M 99 is meant to be used as sition to accept responsibility for design details or construction. part of a legally adopted building code and as such must dif requirements that depend on a detailed knowledge of the de. fer in form and substance from documents that provide de sign Generally the drawings specifications and contract doc. tailed specifications recommended practice complete uments should contain all of the necessary requirements to. design procedures or design aids ensure compliance with the code In part this can be accom. plished by reference to specific code sections in the job specifi. The code is intended to cover all buildings of the usual types cations Other ACI publications such as Specifications for. both large and small Requirements more stringent than the Structural Concrete for Buildings ACI 301 are written spe. code provisions may be desirable for unusual construction cifically for use as contract documents for construction. The code and commentary cannot replace sound engineering. Committee 318 recognizes the desirability of standards of. knowledge experience and judgement, performance for individual parties involved in the contract. A building code states only the minimum requirements nec documents Available for this purpose are the plant certifica. essary to provide for public health and safety The code is tion programs of the Precast Prestressed Concrete Institute. the Post Tensioning Institute and the National Ready Mixed. based on this principle For any structure the owner or the. Concrete Association and the Concrete Reinforcing Steel. structural designer may require the quality of materials and. Institute s Voluntary Certification Program for Fusion. construction to be higher than the minimum requirements. Bonded Epoxy Coating Applicator Plants In addition Rec. ommended Practice for Inspection and Testing Agencies for. For a history of the ACI Building Code see Kerekes Frank and Reid Harold B Jr Concrete Steel and Bituminous Materials As Used in Con. Fifty Years of Development in Building Code Requirements for Reinforced Con. crete ACI JOURNAL Proceedings V 50 No 6 Feb 1954 p 441 For a discussion of struction ASTM E 329 77 recommends performance re. code philosophy see Siess Chester P Research Building Codes and Engineering. Practice ACI JOURNAL Proceedings V 56 No 5 May 1960 p 1105 quirements for inspection and testing agencies. ACI 318 Building Code and Commentary,INTRODUCTION 318M 318RM 3. Design reference materials illustrating applications of the Ohio 4th Edition Apr 1992 31 pp Describes wire fabric. code requirements may be found in the following docu material gives nomenclature and wire size and weight ta. ments The design aids listed may be obtained from the spon bles Lists specifications and properties and manufacturing. soring organization limitations Book has latest code requirements as code af. fects welded wire Also gives development length and splice. Design aids length tables Manual contains customary units and soft met. ACI Design Handbook ACI Committee 340 Publica, tion SP 17 97 American Concrete Institute Farmington Structural Welded Wire Fabric Detailing Manual.
Hills MI 1997 482 pp Provides tables and charts for de Wire Reinforcement Institute McLean Va 1st Edition. sign of eccentricity loaded columns by the Strength Design 1983 76 pp Provides information on detailing welded wire. Method Provides design aids for use in the engineering de fabric reinforcement systems Includes design aids for weld. sign and analysis of reinforced concrete slab systems carry ed wire fabric in accordance with ACI 318 Building Code re. ing loads by two way action Design aids are also provided quirements for wire fabric. for the selection of slab thickness and for reinforcement re. quired to control deformation and assure adequate shear and Strength Design of Reinforced Concrete Columns. flexural strengths Portland Cement Association Skokie Ill EB009D 1978. 48 pp Provides design tables of column strength in terms of. ACI Detailing Manual 1994 ACI Committee 315 load in kips versus moment in ft kips for concrete strength of. Publication SP 66 94 American Concrete Institute Farm. 5000 psi and Grade 60 reinforcement Design examples are. ington Hills MI 1994 244 pp Includes the standard ACI. included Note that the PCA design tables do not include the. 315 92 and report ACI 315R 94 Provides recommended. strength reduction factor in the tabulated values Mu and. methods and standards for preparing engineering drawings. Pu must be used when designing with this aid, typical details and drawings placing reinforcing steel in rein. forced concrete structures Separate sections define responsibil. PCI Design Handbook Precast and Prestressed Con, ities of both engineer and reinforcing bar detailer. crete Precast Prestressed Concrete Institute Chicago 5th. CRSI Handbook Concrete Reinforcing Steel Institute Edition 1999 630 pp Provides load tables for common in. Schaumburg Ill 8th Edition 1996 960 pp Provides tabu dustry products and procedures for design and analysis of. lated designs for structural elements and slab systems De precast and prestressed elements and structures composed of. sign examples are provided to show the basis of and use of these elements Provides design aids and examples. the load tables Tabulated designs are given for beams. square round and rectangular columns one way slabs and Design and Typical Details of Connections for Precast. one way joist construction The design tables for two way and Prestressed Concrete Precast Prestressed Concrete. slab systems include flat plates flat slabs and waffle slabs Institute Chicago 2nd Edition 1988 270 pp Updates avail. The chapters on foundations provide design tables for square able information on design of connections for both structural. STRUCTURAL CONCRETE ACI 318M 99 AND COMMENTARY ACI 318RM 99 REPORTED BY ACI COMMITTEE 318 ACI Committee 318 Standard Building Code INTRODUCTION 318M 318RM 1 ACI 318 Building Code and Commentary The code portion of this document covers the proper design and construction of buildings of structural concrete The code has been written in such form that it may be adopted by reference in a

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