ACI-343R-1995.pdf
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1、ACI 343R-95 Analysis and Design of Reinforced Concrete Bridge Structures Reported by ACI-ASCE Committee 343 John H. Clark Chairman Hossam M. Abdou John H. Allen Gerald H. Anderson F. Arbabi Craig A. Ballinger James M. Barker Ostap Bender T. Ivan Campbell Jerry Cannon Claudius A. Carnegie John L. Car
2、rato Gurdial Chadha W. Gene Corley W. M. Davidge H. Everett Drugge William H. Epp Noel J. Everard Anthony L. Felder These recommendations, reported by the joint ACI-ASCE Committee 343 on Concrete Bridge Design, provide currently acceptable guidelinesfor the analysis and design of reinforced, prestre
3、ssed, and partially prestressed concrete bridges based on the state of the art at the rime of writing the report. The provisions recommended herein apply to pedestrian bridges, highway bridges, railroad bridges, airport taxiway bridges, and other spe- cial bridge structures. Recommendations for Tran
4、sit Guideways are given in ACI 358R. The subjects covered in these recommendations are: common terms; general considerations; materials; construction: loads and load combina- tions; preliminary design: ultimate load analysis and strength design; ser- vice load analysis and design: prestressed concre
5、te; superstructure systems and elements; substructure systems and elements; precast concrete: and details of reinforcement. The quality and testing of materials used in construction are covered by reference to the appropriate AASHTO and ASTM standard specifications. Welding of reinforcement is cover
6、ed by reference to the appropriate AWS standard. Keywords: admixtures; aggregates; anchorage (structural); beam-column frame; beams (supports); bridges (structures); cements; cold weather con- struction; columns (supports); combined stress; composite construction (concrete and steel); composite cons
7、truction (concrete to concrete); com- pressive strength; concrete construction; concretes; concrete slabs; con- ACI Committee Reports, Guides, Standard Practices, and Com- mentaries are intended for guidance in designing, planning, ex- ecuting, or inspecting construction and in preparing specificati
8、ons. Reference to these documents shall not be made in the Project Documents. If items found in these documents are desired to be part of the Project Documents, they should be phrased in mandatory language and incorporated in the Project Documents. Ibrahim A. Ghais Amin Ghali Joseph D. Gliken C. Ste
9、wart Gloyd Nabil F. Grace Hidayat N. Grouni C. Donald Hamilton Allan C. Harwood Angel E. Herrera Thomas T. C. Hsu Ti Huang Ray W. James Richard G. Janecek David Lanning Richard A. Lawrie James R. Libby Clellon L. Loveall W. T. McCalla Om P. Dixit Vice Chairman Antoine E. Naaman Andrzej S. Nowak John
10、 C. Payne Paul N. Roschke M. Saiid Saiidi Bal K. Sanan Harold R. Sandberg John J. Schemmel A. C. Scordelis Himat T. Solanki Steven L. Stroh Sami W. Tabsh Herman Tachau James C. Tai Marius B. Weschsler J. Jim Zhao struction joints; construction materials; continuity (structural); cover; curing; deep
11、beams; deflection; earthquake-resistant structures; flexural strength: footings; formwork (construction); frames; hot weather con- struction; inspection; lightweight concretes; loads (forces); mixing; mix- ture proportioning; modulus of elasticity; moments; placing; precast concrete; prestressed con
12、crete; prestressing steels; quality control; rein- forced concrete; reinforcing steels; serviceability; shear strength; spans; specifications; splicing; strength; structural analysis, structural design; T-beams; torsion; ultimate strength method; water; welded-wire fabric. Note: In the text, measure
13、ments in metric (SI) units in pa- rentheses follow measurements in inch-pound units. Where applicable for equations, equations for metric (SI) units in parentheses follow equations in inch-pound units. CONTENTS Chapter l-Definitions, notation, and organizations, p. 343R-4 1.l-Introduction 1.2-Defini
14、tions 1.3-Notation 1.4-Referenced organizations ACI 343R-95 became effective Mar. 1, 1995 and supersedes ACI 343R-88. For the 1995 revision, Chapters 6 and 12 were rewritten. Copyright 0 1995, American Concrete Institute. All rights reserved including rights of reproduction and use in any form or by
15、, 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 repro- duction or for use in any knowledge or retrieval system or device, unless permission in writing is obtained from the copyri
16、ght proprietors. Copyright American Concrete Institute Provided by IHS under license with ACI Licensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/05/2007 02:55:24 MSTNo reproduction or networking permitted without license from IHS -,-,- 343R-2 ACI COMMITTEE REPORT Chapter 2-R
17、equirements for bridges, p. 343R-12 2.l-Introduction 2.2-Functional considerations 2.3-Esthetic considerations 2.4-Economic considerations 2.5-Bridge types 2.6-Construction and erection considerations 2.7-Legal considerations Chapter 3-Materials, p. 343R-26 3.l-Introduction 3.2-Materials 3.3-Propert
18、ies 3.4-Standard specifications and practices Chapter 4-Construction considerations, p. 343R-37 4.1-Introduction 4.2-Restrictions 4.3-Goals 4.5-Site characteristics 4.6-Environmental restrictions 4.7-Maintenance of traffic 4.8-Project needs 4.9-Design of details 4.10-Selection of structure type 4.1l
19、-Construction problems 4.12-Alternate designs 4.13-Conclusions Chapter 5-Loads and load combinations, p. 343R-51 5.l-Introduction 5.2-Dead loads 5.3-Construction, handling, and erection loads 5.4-Deformation effects 5 .5-Environmental loads 5.6-Pedestrian bridge live loads 5.7-Highway bridge live lo
20、ads 5.8-Railroad bridge live loads 5.9-Rail transit bridge live loads 5.10-Airport runway bridge loads 5.1l-Pipeline and conveyor bridge loads 5.12-Load combinations Chapter 6-Preliminary design, p. 343R-66 6.l-Introduction 6.2-Factors to be considered 6.3-High priority items 6.4-Structure types 6.5
21、-Superstructure initial section proportioning 6.6-Abutments 6.7-Piers and bents 6.8-Appurtenances and details 6.9-Finishes Chapter 7-Strength design, p. 343R-79 7.1-Introduction 7.2-Considerations for analysis, design, and review 7.3-Strength requirements Chapter 8-Service load analysis and design,
22、343R-96 8.1-Basic assumptions 8.2-Serviceability requirements 8.3-Fatigue of materials 8.4-Distribution of reinforcement in flexural members 8.5-Control of deflections 8.6-Permissible stresses for prestressed flexural mem- bers 8.7-Service load design 8.8-Thermal effects Chapter 9-Prestressed concre
23、te, p. 343R-102 9.1-Introduction 9.2-General design consideration 9.3-Basic assumptions 9.4-Flexure, shear 9.5-Permissible stresses 9.6-Prestress loss 9.7-Combined tension and bending 9.8-Combined compression and bending 9.9-Combination of prestressed and nonprestressed rein- forcement-partial prest
24、ressing 9.10-Composite structures 9.11-Crack control 9.12-Repetitive loads 9.13-End regions and laminar cracking 9.14-Continuity 9.15-Torsion 9.16-Cover and spacing of prestressing steel 9.17-Unbonded tendons 9.18-Embedment of pretensioning strands 9.19-Concrete 9.20-Joints and bearings for precast
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