ACI-343R-1995-R2004.pdf
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1、 343R-1 ACI 343R-95 became effective Mar. 1, 1995 and supersedes ACI 343R-88. For the 1995 revision, Chapters 6 and 12 were rewritten. Copyright 1995, American Concrete Institute. All rights reserved including rights of reproduction and use in any form or by any means, including the making of copies
2、 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 copyright proprietors. ACI Committee Reports, Gui
3、des, 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 acce
4、pt 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 docu
5、ments. 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. ACI 343R-95 (Reapproved 2004) Analysis and Design of Reinforced Concrete Bridge Structures Re
6、ported by Joint ACI-ASCE Committee 343 John H. Clark Chairman Om P. Dixit Vice Chairman Hossam M. AbdouIbrahim A. GhaisAntoine E. Naaman John H. AllenAmin GhaliAndrzej S. Nowak Gerald H. AndersonJoseph D. GlikenJohn C. Payne F. ArbabiC. Stewart GloydPaul N. Roschke Craig A. BallingerNabil F. GraceM.
7、 Saiid Saiidi James M. BarkerHidayat N. GrouniBal K. Sanan Ostap BenderC. Donald HamiltonHarold R. Sandberg T. Ivan CampbellAllan C. HarwoodJohn J. Schemmel Jerry CannonAngel E. HerreraA. C. Scordelis Claudius A. CarnegieThomas T. C. HsuHimat T. Solanki John L. CarratoTi HuangSteven L. Stroh Gurdial
8、 ChadhaRay W. JamesSami W. Tabsh W. Gene CorleyRichard G. JanecekHerman Tachau W. M. DavidgeDavid LanningJames C. Tai H. Everett DruggeRichard A. LawrieMarius B. Weschsler William H. EppJames R. LibbyJ. Jim Zhao Noel J. EverardClellon L. Loveall Anthony L. FelderW. T. McCalla These recommendations,
9、reported by the joint ACI-ASCE Committee 343 on Concrete Bridge Design, provide currently acceptable guidelines for the analysis and design of reinforced, prestressed, and partially prestressed concrete bridges based on the state of the art at the time of writing the report. The provisions recommend
10、ed herein apply to pedestrian bridges, highway bridges, railroad bridges, airport taxiway bridges, and other special bridge structures. Recommendations for Transit Guideways are given in ACI 358R. The subjects covered in these recommendations are: common terms; general considerations; materials; con
11、struction; loads and load combina- tions; preliminary design; ultimate load analysis and strength design; service load analysis and design; prestressed concrete; superstructure systems and elements; substructure systems and elements; precast concrete; and details of reinforcement. The quality and te
12、sting of materials used in construction are covered by reference to the appropriate AASHTO and ASTM standard specifications. Welding of reinforcement is covered by reference to the appropriate AWS standard. Keywords: admixtures; aggregates; anchorage (structural); beam-column frame; beams (supports)
13、; bridges (structures); cements; cold weather construction; columns (supports); combined stress; composite construction (concrete and steel); composite construction (concrete to concrete); compressive strength; concrete construction; concretes; concrete slabs; construction joints; construction mater
14、ials; continuity (structural); cover; curing; deep beams; deflection; earthquake-resistant structures; flexural strength; footings; formwork (construction); frames; hot weather construction; inspection; lightweight concretes; loads (forces); mixing; mixture proportioning; modulus of elasticity; mome
15、nts; placing; precast concrete; prestressed concrete; 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;
16、 welded-wire fabric. Note: In the text, measurements in metric (SI) units in parentheses 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 1Definitions, notation, and organiza
17、tions, p. 343R-4 1.1Introduction 1.2Definitions 1.3Notation 1.4Referenced organizations -,-,- 343R-2 ACI COMMITTEE REPORT Chapter 2-Requirements 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-Constru
18、ction and erection considerations 2.7-Legal considerations Chapter 3-Materials, p. 343R-26 3.l-Introduction 3.2-Materials 3.3-Properties 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.
19、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-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, hand
20、ling, and erection loads 5.4-Deformation effects 5 .5-Environmental loads 5.6-Pedestrian bridge live loads 5.7-Highway bridge live loads 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 C
21、hapter 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-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-In
22、troduction 7.2-Considerations for analysis, design, and review 7.3-Strength requirements Chapter 8-Service load analysis and design, 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
23、 8.6-Permissible stresses for prestressed flexural mem- bers 8.7-Service load design 8.8-Thermal effects Chapter 9-Prestressed concrete, 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 ten
24、sion and bending 9.8-Combined compression and bending 9.9-Combination of prestressed and nonprestressed rein- forcement-partial prestressing 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
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