ACI 209R-1992
|
ID： |
0A32A56862BB40D4A8B2B5B158FB29CD |
|
文件大小(MB)： |
1.11 |
|
页数： |
47 |
|
文件格式： |
|
|
日期： |
2013-6-23 |
|
购买： |
文本摘录（文本识别可能有误，但文件阅览显示及打印正常，pdf文件可进行文字搜索定位）：
ACI 209R-92,(Reapproved 1997),Prediction of Creep, Shrinkage,and Temperature Effects in,Concrete Structures,Reported by ACI Committee 209,James A.Rhodes? Domingo J. Carreira++,Chairman, Committee 209 Chairman, Subcommittee II,James J. Beaudoin,Dan E. Brauson*t,Bruce R. Gamble,H.G. Geymayer,Brij B. Goyalt,Brian B. Hope,John R. Keeton t,Clyde E. Kesler,William R. Lorman,Jack A. Means?,Bernard L Meyers l-,R.H. Mills,K.W. Nasser,A.M. Neville,Frederic Roll?,John Timus k,Michael A. Ward,Corresponding Members: John W. Dougill, H.K. Hilsdorf,Committee members voting on the 1992 revisions:,Marwan A. Daye,Chairman,Akthem Al-Manaseer,James J. Beaudoiu,Dan E.Branson,Domingo J. Carreira,Jenn-Chuan Chem,Menashi D. Cohen,Robert L Day,Chung C. Fu 1,Satyendra K. Ghosh,Brij B. Goyal,Will Hansen,Stacy K. Hirata,Joe Huterer,Hesham Marzouk,Bernard L. Meyers,Karim W. Nasser,Mikael PJ. Olsen,Baldev R. Seth,Kwok-Nam Shiu,Liiia Panula$,* Member of Subcommittee II, which prepared this report,t Member of Subcommittee II,S=-=d,This report reviews the methods for predicting creep, shrinkage and temper,ature effects in concrete structures. It presents the designer with a unified,and digested approach to the problem of volume changes in concrete. The,individual chapters have been written in such a way that they can be used,almost independently from the rest of the report.,The report is generally consistent with ACI 318 and includes material,indicated in the Code, but not specifically defined therein.,Keywords: beams (supports); buckling; camber; composite construction (concrete,to concrete); compressive strength; concretes; concrete slabs; cracking (frac,turing); creep properties; curing; deflection; flat concrete plates; flexural strength;,girders; lightweight-aggregate concretes; modulus of elasticity; moments of inertia;,precast concrete; prestressed concrete: prestress loss; reinforced concrete: shoring;,shrinkage; strains; stress relaxation; structural design; temperature; thermal,expansion; two-way slabs: volume change; warpage.,ACI Committee Reports, Guides, Standard Practices, and,Commentaries are intended for guidance in designing, planning,executing, or inspecting construction and in preparing,specifications. References to these documents shall not be,made in the Project Documents. If items found in these,documents are desired to be a part of the Project Documents,they should be phrased in mandatory language and,incorporated into the Project Documents.,J,CONTENTS,Chapter 1--General, pg. 209R-2,l.l-Scope,1.2-Nature of the problem,1.3 -Definitions of terms,Chapter 2-Material response, pg. 209R-4,2.1 -Introduction,2.2-Strength and elastic properties,2.3-Theory for predicting creep and shrinkage of concrete,2.4-Recommended creep and shrinkage equations,for standard conditions,The 1992 revisions became effective Mar. 1, 1992. The revisions consisted of,minor editorial changes and typographical corrections.,Copyright 8 1982 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 any electronic,or mechanical device, printed or 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.,Copyright American Concrete Institute,Provided by IHS under license with ACI,No reproduction or networking permitted without license from IHS Not for Resale,--``,`,-`-`,,`,,`,`,,`---,209R-2 ACI COMMITTEE REPORT,2.5-Correction factors for conditions other than the,standard concrete composition,2.6-Correction factors for concrete composition,2.7-Example,2.8-Other methods for prediction of creep and,shrinkage,2.9-Thermal expansion coefficient of concrete,2.10-Standards cited in this report,Chapter 3-Factors affeating the structural response -,assumptions and methods of analysis, pg. 209R-12,3.1-Introduction,3.2-Principal facts and assumptions,3.3-Simplified methods of creep analysis,3.4-Effect of cracking in reinforced and prestressed,members,3.5-Effective compression steel in flexural members,3.6-Deflections due to warping,3.7-Interdependency between steel relaxation, creep,and shrinkage of concrete,Chapter 4-Response of structures in which time -,change of stresses due to creep, shrinkage and temperature,is negligible, pg. 209R-16,4.1-Introduction,4.2-Deflections of reinforced concrete beam and slab,4.3-Deflection of composite precast reinforced beams,in shored and unshored constructions,4.4-Loss of prestress and camber in noncomposite,prestressed beams,4.5-Loss of pres……
……