NCHRP Report 654: Evaluation and Repair Procedures for Precast/Prestressed Concrete Girders with Longitudinal Cracking in the Web
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NCHRP Report 654:
Evaluation and Repair Procedures for Precast/Prestressed Concrete Girders with Longitudinal Cracking in the Web
(2010)
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Overview

Authors

Description

TRB's National Cooperative Highway Research Program (NCHRP) Report 654: Evaluation and Repair Procedures for Precast/Prestressed Concrete Girders with Longitudinal Cracking in the Web explores the acceptance, repair, or rejection of precast/prestressed concrete girders with longitudinal web cracking. The report also examines suggested revisions to the American Association of State Highway and Transportation Officials' Load Resistance Factor Design Bridge Design Specifications and measures to develop improved crack control reinforcement details for use in new girders.

Appendices A through G for NCHRP Report 654 are available online.

• Appendix Aâ€"Literature Review

• Appendix Bâ€"National Survey

• Appendix Câ€"Structural Investigation and Full-Scale Girder Testing

• Appendix Dâ€"Sealant Specifications

• Appendix Eâ€"ASTM Specifications

• Appendix Fâ€"Field Inspection of Bridges

• Appendix Gâ€"Design Examples of End Zone Reinforcement

Topics

  • Transportation — Maintenance and Preservation
  • Transportation — Bridges and Other Structures
  • Transportation — Materials

Publication Info

76 pages | 8.5 x 11
Contents

Table of Contents

skim chapter
Front Matter i-x
Summary 1-3
1.2.1 Evolution of Permissible Crack Widths 4-6
1.2.2 Sources of End Zone Cracking 7-8
1.2.3 Design of End Zone Reinforcement 9-9
1.3.1 Epoxy Injection Procedure by PCI Manual for the Evaluation and Repair of Precast, Prestressed Concrete Bridge Products 10-10
1.5 Applicability of Results to Highway Practice 11-11
1.6 Organization of the Report 12-12
Chapter 2 - Research Approach 13-14
3.1 National Survey 15-15
3.2.1 Introduction 16-16
3.2.2 Description of the Test Specimens and Test Setup 17-20
3.2.3 Test Setup 21-21
3.2.4 Test Results 22-29
3.2.5 Full-Scale Testing Conclusions 30-31
3.3.2 Description of the Test Specimens 32-34
3.3.3 Preparation of the Test Specimens 35-35
3.3.4 Test Results 36-37
3.3.5 Discussion and Conclusions 38-39
3.4.2 Durability Test, Stage I 40-41
3.4.3 Durability Test, Stage II 42-46
3.4.4 Durability Test, Stage III 47-48
3.5.1 Introduction 49-49
3.5.2 Nebraska Department of Roads (NDOR) 50-52
3.5.3 Virginia Department of Transportation (VDOT) 53-57
3.6 Manual of Acceptance, Repair, or Rejection 58-58
3.7 Improved Crack Control Reinforcement Details for Use in New Girders 59-60
3.8 Proposed Revisions to the AASHTO LRFD Bridge Design Specifications 61-61
4.2 Implementation of Research Findings in Highway Communities 62-62
4.3 Suggestions for Future Research 63-63
References 64-64
Appendices 65-65
Abbreviations used without definitions in TRB publications 66-66

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