NCHRP Synthesis 354:

Inspection and Management of Bridges with Fracture-Critical Details

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Size: 84 pages, 8.5 x 11

Publication Year:2006

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Authors:
Robert J Connor; Robert J Dexter; Hussam Mahmoud; Transportation Research Board
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TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 354: Inspection and Management of Bridges with Fracture-Critical Details explores the inspection and maintenance of bridges with fracture-critical members (FCMs), as defined in the American Association of State Highway and Transportation Officials' ...
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Table of Contents
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Front Matter	i-viii
Summary	1-4	(skim)
Scope and Objective	5-5	(skim)
Organization	6-6	(skim)
Development of Specifications for Steel Bridges	7-10	(skim)
Redundancy and Collapse of Steel Bridges	11-19	(skim)
Present Classification of Steel Bridge Superstructures as Fracture-Critical	20-23	(skim)
Summary of Responses to Part I - General	24-24	(skim)
Summary of Responses to Part II - Inspection and Classification	25-27	(skim)
Summary of Responses to Part III - Failures	28-28	(skim)
Summary of Responses to Part IV - Retrofit Procedures	29-29	(skim)
Summary of Survey Results	30-30	(skim)
Results of Fracture Control Plan - 25 Years Later	31-31	(skim)
Identifying Fracture-Critical Bridges	32-32	(skim)
Role of Inspection for Fracture-Critical Bridges	33-34	(skim)
Chapter Five - Conclusions	35-36	(skim)
References	37-38	(skim)
Appendix A - Background Discussion on Fatigue, Fracture, Nondestructive Evaluation, and Repair and Retrofit	39-56	(skim)
Appendix B - Survey Questionnaire	57-66	(skim)
Appendix C - List of Survey Respondents	67-67	(skim)
Appendix D - Annotated Bibliography	68-75	(skim)
Abbreviations used without definitions in TRB publications	76-76	(skim)

Description

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 354: Inspection and Management of Bridges with Fracture-Critical Details explores the inspection and maintenance of bridges with fracture-critical members (FCMs), as defined in the American Association of State Highway and Transportation Officials' Load and Resistance Factor Design (LRFD) Bridge Design Specifications. The report identifies gaps in literature related to the subject; determines practices and problems with how bridge owners define, identify, document, inspect, and manage bridges with fracture-critical details; and identifies specific research needs. Among the areas examined in the report are inspection frequencies and procedures; methods for calculating remaining fatigue life; qualification, availability, and training of inspectors; cost of inspection programs; instances where inspection programs prevented failures; retrofit techniques; fabrication methods and inspections; and experience with fracture-critical members fractures and problems details.

NCHRP Synthesis 354:

Inspection and Management of Bridges with Fracture-Critical Details

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