Fatigue Strength Of Steel Bridge Members With Intersecting Welds

Author : David T. DeLong
Publisher : Purdue University Press
ISBN 13 : 9781622600748
Total Pages : 224 pages
Book Rating : 4.46/5 ( download)

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Download or read book Fatigue Strength of Steel Bridge Members with Intersecting Welds written by David T. DeLong and published by Purdue University Press. This book was released on 2009-06-01 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Author : John W. Fisher
Publisher :
ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.85/5 ( download)

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Download or read book Executive Summary written by John W. Fisher and published by . This book was released on 1989 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : John W. Fisher
Publisher : Transportation Research Board National Research
ISBN 13 :
Total Pages : 650 pages
Book Rating : 4.72/5 ( download)

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Download or read book Fatigue Strength of Steel Beams with Welded Stiffeners and Attachments written by John W. Fisher and published by Transportation Research Board National Research. This book was released on 1974 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research (which is the second phase of a study intended to provide reliable information on fatigue behavior of steel bridge members), and an extensive investigation of fatigue effects in welded steel beams, which formed the basis for recommendations for revision of the fatigue provisions of the AASHP Standard Specifications for Highway Bridges. A hundred and fifty seven steel beams and girders were fabricated and tested to define the fatigue strength of various structural details, including stiffeners and attachments. Stress range was observed for nearly all the variation in cycle life for all stiffener and a attachment details examined in this study.

Author : E. N. Gregory
Publisher : Transportation Research Board National Research
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.73/5 ( download)

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Download or read book Welded Repair of Cracks in Steel Bridge Members written by E. N. Gregory and published by Transportation Research Board National Research. This book was released on 1989 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : John W. Fisher
Publisher : Transportation Research Board
ISBN 13 : 9780309053525
Total Pages : 44 pages
Book Rating : 4.28/5 ( download)

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Download or read book Resistance of Welded Details Under Variable Amplitude Long-life Fatigue Loading written by John W. Fisher and published by Transportation Research Board. This book was released on 1993 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : John W. Fisher
Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 344 pages
Book Rating : 4.66/5 ( download)

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Download or read book Fatigue and Fracture in Steel Bridges written by John W. Fisher and published by Wiley-Interscience. This book was released on 1984 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Author : Mark Douglas Bowman
Publisher : Transportation Research Board
ISBN 13 : 030925826X
Total Pages : 125 pages
Book Rating : 4.65/5 ( download)

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Download or read book Fatigue Evaluation of Steel Bridges written by Mark Douglas Bowman and published by Transportation Research Board. This book was released on 2012 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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.

Author : Timothy Russell Gurney
Publisher : Bernan Press(PA)
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.96/5 ( download)

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Download or read book Fatigue of Steel Bridge Decks written by Timothy Russell Gurney and published by Bernan Press(PA). This book was released on 1992 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: A broadly-based research programme on orthotropic steel bridge decks, led by D.E. Nunn, was carried out between 1963 and 1987 covering traffic usage, surfacing and fatigue. Initially the work was predictive, determining the main variables and establishing the basis of a fatigue assessment methods. Following the discovery of fatigue cracks in service, methods of repair and strengthening were developed. This work has been recorded in internal reports, but much of it has not been generally available until publication of this review. Experimental results are presented and recommendations given for the fatigue classification of welded joints in orthotropic decks.

Author :
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.09/5 ( download)

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Download or read book Effects of Weldments on Fatigue Strength of Steel Beams written by and published by . This book was released on 1970 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : John W. Fisher
Publisher : Transportation Research Board
ISBN 13 : 9780309048590
Total Pages : 60 pages
Book Rating : 4.91/5 ( download)

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Download or read book Distortion-induced Fatigue Cracking in Steel Bridges written by John W. Fisher and published by Transportation Research Board. This book was released on 1990 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: