Fatigue and Fracture Library for the Inspection, Evaluation, and Repair of Vehicular Steel Bridges
Author: Phil Fish
Publisher:
Published: 2015-04-15
Total Pages:
ISBN-13: 9781622603282
DOWNLOAD EBOOK →Lanterna Rally
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Inspection and Management of Bridges with Fracture-critical Details
Author: Robert J. Conner
Publisher: Transportation Research Board
Published: 2005
Total Pages: 84
ISBN-13: 0309097614
DOWNLOAD EBOOK →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.
Fatigue Evaluation of Steel Bridges
Author: Mark Douglas Bowman
Publisher: Transportation Research Board
Published: 2012
Total Pages: 125
ISBN-13: 030925826X
DOWNLOAD EBOOK →"TRB's National Cooperative Highway Research Program (NCHRP) Report 721: Fatigue Evaluation of Steel Bridges provides proposed revisions to Section 7--Fatigue Evaluation of Steel Bridges of the American Association of State Highway and Transportation Officials Manual for Bridge Evaluation with detailed examples of the application of the proposed revisions."--Publisher's description.
Fatigue and Fracture in Steel Bridges
Author: John W. Fisher
Publisher: Wiley-Interscience
Published: 1984-06-20
Total Pages: 348
ISBN-13:
DOWNLOAD EBOOK →This book provides a detailed review and summary of twenty-two case studies of fracture and fatigue in bridge structures. Its two parts cover cracks formed as a result of low fatigue resistant details, and cracks resulting from unanticipated secondary or displacement induced stresses.
Heat-straightening Repair of Damaged Steel Bridge Girders
Author: Robert J. Connor
Publisher: Transportation Research Board
Published: 2008
Total Pages: 140
ISBN-13: 0309099374
DOWNLOAD EBOOK →TRB¿s National Cooperative Highway Research Program (NCHRP) Report 604: Heat-Straightening Repair of Damaged Steel Bridge Girders: Fatigue and Fracture Performance explores limits, based on fatigue and fracture performance, on the number of damage and repair cycles to which damaged steel bridge girders may be subjected using the heat-straightening procedure.
Fatigue and Fracture Evaluation for Rating Riveted Bridges
Author: John W. Fisher
Publisher: Transportation Research Board National Research
Published: 1987
Total Pages: 100
ISBN-13:
DOWNLOAD EBOOK →Evaluation of Repair Procedures for Web Gap Fatigue Damage
Author: P. B. Keating
Publisher:
Published: 1996
Total Pages: 170
ISBN-13:
DOWNLOAD EBOOK →Connection plates cross frame diaphragms not rigidly attached to tension flanges can develop fatigue cracking in the unstiffened web gap due to the out-of-plane distortion. This report investigates repair procedures for fatigue damage in the web gap of steel highway bridges. The procedures investigated include drilling holes at crack tips, flame-cutting holes to remove extensively cracked regions, and gouging and rewelding. In addition, rigid attachment retrofits of tight-fit and cut-short connection plate details are examined. The evaluation of these repairs are made by monitoring their implementation on an in-service bridge, laboratory fatigue testing of simulated repairs, and finite element analysis. All three crack repair procedures were found to be viable. However, procedures outlined must be followed to achieve the quality in the repair that will insure continued safe use of the bridge throughout its remaining life. The results indicate that the degree of finish given to the repair is as important as satisfying the prescribed repair criteria.
Fatigue Evaluation Procedures for Steel Bridges
Author: Fred Moses
Publisher: Transportation Research Board National Research
Published: 1987
Total Pages: 104
ISBN-13:
DOWNLOAD EBOOK →Fatigue Life of Riveted Steel Bridges
Author: Björn Åkesson
Publisher: CRC Press
Published: 2010-04-21
Total Pages: 170
ISBN-13: 0203847768
DOWNLOAD EBOOK →Many old riveted railway bridges are replaced too soon due to a general lack of knowledge about the expected life span. This indicates the need for more information on fatigue and brittle fracture of riveted bridges. This book unveils extensive research and literature results on riveted bridges' fatigue live and shows how to take fatigue properly i
Fatigue Strength of Steel Bridge Members with Intersecting Welds
Author: David T. DeLong
Publisher: Purdue University Press
Published: 2009-06-01
Total Pages: 224
ISBN-13: 9781622600748
DOWNLOAD EBOOK →The brittle fracture of the Hoan Bridge in December 2000 highlighted the fracture susceptibility of details containing intersecting welds in steel bridges. Though it is now known that details with intersecting welds should be avoided, many existing bridges in Indiana contain details with intersecting welds. Little experimental data on the fatigue performance of these details exists. The purpose of this study was to evaluate the fatigue strength of several details commonly found in steel bridges in Indiana that contain intersecting welds. Large-scale experimental fatigue testing were performed using nine steel beams to study the behavior of three basic types of welded details: a vertical stiffener, a horizontal stiffener terminating near a vertical stiffener, and a horizontal gusset plate coped to fit around a vertical stiffener. The welded details in this study were fabricated with varying degrees of web gap, defined as the distance between perpendicular weld toes. The results of the experimental testing were examined and compared to prior testing to determine if the size of the web gap affected the fatigue strength. Furthermore, the performance of drilled hole retrofits used to extend the fatigue life of these details was studied. Within the scope of the fatigue testing program, the presence of intersecting welds was not found to significantly affect the fatigue strength of vertical stiffener and horizontal gusset details. However, the size of the web gap may have had an effect on the fatigue strength of details where a horizontal stiffener terminated near a vertical stiffener. Further experimental testing is needed to more clearly define the relationship between web gap and fatigue strength for this case. Drilled hole retrofits were successful at prolonging the lives of these details to varying degrees, but it should be noted that the stress redistribution resulting from these holes may cause fatigue cracking at nearby weld toes.
