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Author :
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (1 download)
Download or read book Deformation Induced Cracking in Steel Girder Bridges and Retrofit Guidelines written by and published by . This book was released on 1987 with total page 200 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 : 4.0/5 (485 download)
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:
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ISBN 13 :
Total Pages : 240 pages
Book Rating : 4.:/5 (3 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1988 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 : 9781109386073
Total Pages : pages
Book Rating : 4.3/5 (86 download)
Download or read book Analysis of Distortion-induced Fatigue Cracking of a Trapezoidal Steel Box Girder Bridge Including Retrofit Investigation written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Distortion induced fatigue is a common problem for aging steel bridges. The distortion creates secondary bending stresses at web gap locations that are not accounted for in design, thereby initiating fatigue cracks. A large number of such distortion-induced fatigue cracks have recently been found on Delaware Bridge 1-501 in Newport, Delaware. This multi box steel tub girder bridge has cracking that has initiated in the weld which connects the web to the internal bracing via connection plates. To investigate this problem, global finite element models of two of the bridge's spans were created. In order to calibrate the models for use in analysis, a diagnostic load test was performed using strain transducers to measure strains associated with bending of the girders. Once the models were found to reasonably represent the actual response of the structure, the model was then refined for local modeling of the web gap region. As expected, stresses within the gap were found to be large. Reduction of the stresses within these gap locations is required to increase the remaining life of the bridge. Several retrofit methods were designed to accomplish this stress reduction, based on effective retrofits used to correct similar problems in the past. These retrofit methods include drilling holes at the crack tips, positively attaching the connection plates to flanges, increasing the length of the web gaps, and removing the diagonal elements in the diaphragms. The retrofits were modeled and analyzed under fatigue loading and the resulting stresses were compared to the original structure. Of these methods, the positive attachment was found to be most effective in reducing the web gap stresses; however, all of the approaches provided significant reductions in the stress range. Recommendations for applying this type of retrofit detail along with the drilling of holes at the end of crack tips are provided.
Author : John M. Kulicki
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (793 download)
Download or read book Research Project 89-19 written by John M. Kulicki and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mark Douglas Bowman
Publisher : Transportation Research Board
ISBN 13 : 030925826X
Total Pages : 125 pages
Book Rating : 4.3/5 (92 download)
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 : Wai-Fah Chen
Publisher : CRC Press
ISBN 13 : 1439852081
Total Pages : 664 pages
Book Rating : 4.4/5 (398 download)
Download or read book Bridge Engineering Handbook, Second Edition written by Wai-Fah Chen and published by CRC Press. This book was released on 2014-01-24 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over 140 experts, 14 countries, and 89 chapters are represented in the second edition of the Bridge Engineering Handbook. This extensive collection highlights bridge engineering specimens from around the world, contains detailed information on bridge engineering, and thoroughly explains the concepts and practical applications surrounding the subject. Published in five books: Fundamentals, Superstructure Design, Substructure Design, Seismic Design, and Construction and Maintenance, this new edition provides numerous worked-out examples that give readers step-by-step design procedures, includes contributions by leading experts from around the world in their respective areas of bridge engineering, contains 26 completely new chapters, and updates most other chapters. It offers design concepts, specifications, and practice, as well as the various types of bridges. The text includes over 2,500 tables, charts, illustrations, and photos. The book covers new, innovative and traditional methods and practices; explores rehabilitation, retrofit, and maintenance; and examines seismic design and building materials. The fifth book, Construction and Maintenance contains 19 chapters, and covers the practical issues of bridge structures. What’s New in the Second Edition: Includes nine new chapters: Steel Bridge Fabrication, Cable-Supported Bridge Construction, Accelerated Bridge Construction, Bridge Management Using Pontis and Improved Concepts, Bridge Maintenance, Bridge Health Monitoring, Nondestructive Evaluation Methods for Bridge Elements, Life-Cycle Performance Analysis and Optimization, and Bridge Construction Methods Rewrites the Bridge Construction Inspection chapter and retitles it as: Bridge Construction Supervision and Inspection Expands and rewrites the Maintenance Inspection and Rating chapter into three chapters: Bridge Inspection, Steel Bridge Evaluation and Rating, and Concrete Bridge Evaluation and Rating; and the Strengthening and Rehabilitation chapter into two chapters: Rehabilitation and Strengthening of Highway Bridge Superstructures, and Rehabilitation and Strengthening of Orthotropic Steel Bridge Decks This text is an ideal reference for practicing bridge engineers and consultants (design, construction, maintenance), and can also be used as a reference for students in bridge engineering courses.
Author : Wai-Fah Chen
Publisher : CRC Press
ISBN 13 : 1482255030
Total Pages : 3130 pages
Book Rating : 4.4/5 (822 download)
Download or read book Bridge Engineering Handbook, Five Volume Set written by Wai-Fah Chen and published by CRC Press. This book was released on 2014-01-24 with total page 3130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over 140 experts, 14 countries, and 89 chapters are represented in the second edition of the Bridge Engineering Handbook. This extensive collection provides detailed information on bridge engineering, and thoroughly explains the concepts and practical applications surrounding the subject, and also highlights bridges from around the world.Published
Author : Thomas O. Barnwell
Publisher :
ISBN 13 :
Total Pages : 976 pages
Book Rating : 4.3/5 (91 download)
Download or read book Computing in Civil Engineering written by Thomas O. Barnwell and published by . This book was released on 1989 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technical papers presented at the Workshop document the advances in computer technology that have taken place in water resources management, with particular attention to practical implementation. Additional papers provide a look at possible future advances and innovations in the field. Annotation copyright Book News, Inc. Portland, Or.
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Publisher :
ISBN 13 : 9781109385977
Total Pages : pages
Book Rating : 4.3/5 (859 download)
Download or read book Analysis of Distortion-induced Fatigue Cracking in a Steel Trapezoidal Box Girder Bridge written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2006, a consulting firm was hired to perform an in-depth interior box inspection on Delaware Department of Transportation (DelDOT) Bridge Number 1-501, also known as the Newport Viaduct. Upon inspection, 655 fatigue cracks were observed, occurring at the weld metal between the transverse cross frame connection plate and girder webs. At the cracked locations, a 2.5 in. web gap exists between the connection plate termination and the girder flanges. This is a known fatigue prone detail that has been widely documented to be susceptible to out-of-plane deformation and distortion-induced fatigue. Although the mode of cracking is relatively familiar, there are remaining questions that should be answered to ensure the proper functioning of the structure. Specifically, is the observed fatigue cracking consistent with expected behavior? Secondly, should additional cracks be expected to initiate in locations that currently do not have observable cracks? These questions were approached by focusing on a portion of the overall structure, Spans 9-11 in the southbound direction. Field testing was performed to capture the in-situ response of the structure to known live loads via the implementation of 23 strategically placed strain transducers. The field testing was used to calibrate and validate a finite element model. The finite element mesh was constructed using the FEMAP preprocessor and solved using ABAQUS. Sensitivity analyses were performed on the model to investigate the influence of the transverse truck position within the travel lane, the concrete deck stiffness, and the concrete parapets. The results of each analysis showed that the finite element model was insensitive to variations in transverse truck position, concrete stiffness, and the exclusion of the parapets. The finite element model was ultimately utilized to perform a fatigue evaluation. The fatigue evaluation showed that fatigue cracking is within reason given the stress range and the number of accumulated stress cycles from lifetime truck traffic on the structure. The fatigue evaluation and anticipation of future cracking establishes the need for developing crack retrofit and mitigation strategies for the web gap details within the structure. These strategies will extend the longevity of the bridge and enable it to remain in service.
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Publisher :
ISBN 13 :
Total Pages : 101 pages
Book Rating : 4.:/5 (266 download)
Download or read book Distortion Induced Cracking in Steel Bridge Members written by and published by . This book was released on 1990 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cornelia E. Demers
Publisher :
ISBN 13 :
Total Pages : 332 pages
Book Rating : 4.E/5 ( download)
Download or read book A Survey of Localized Cracking in Steel Bridges, 1981 to 1988 written by Cornelia E. Demers and published by . This book was released on 1989 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 956 pages
Book Rating : 4.:/5 (1 download)
Download or read book HRIS Abstracts written by and published by . This book was released on 1988 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : University of California, Berkeley. Institute of Transportation Studies. Library
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.F/5 ( download)
Download or read book Recent Transportation Literature for Planning and Engineering Librarians written by University of California, Berkeley. Institute of Transportation Studies. Library and published by . This book was released on 1988 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 552 pages
Book Rating : 4.3/5 (91 download)
Download or read book Public Administration Series--Bibliography written by and published by . This book was released on 1986 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yared Shifferaw Bayleyegn
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (631 download)
Download or read book Field Testing and Finite Element Analysis of Retrofit Methods for Distortion-induced Fatigue in Steel Bridges written by Yared Shifferaw Bayleyegn and published by . This book was released on 2005 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crack formation due to out-of-plane distortion in the web-gap region has been a common occurrence in multi-girder steel bridges. These cracks result from the fatigue stresses that are induced in the web-gap due to cyclic diaphragm forces resulting from differential deflections between girders. The study presented herein investigated the different repair methods that can be used to control formation of these cracks. The study involved field testing and analytical modeling of a skewed multi-girder steel bridge designated as Design No. 1283, which is built on county road D-180 that crosses over I-380 in the state of Iowa. Different repair methods were suggested to reduce the induced stresses and strains in the web-gap under truck loads. These methods included loosening of the bolts connecting the cross-bracing to the stiffener, connecting the stiffener to the girder top flange or adding another stiffener on the opposite side of the girder web. The results indicated that the first two of these repair alternatives were effective in reducing induced stresses and strains in the web-gap region. The impact of web-gap height on the distortion induced in the web-gap was also studied. Furthermore, influence surfaces for different responses such as, web-gap strains, stresses, out-of-plane displacements at critical locations, and forces in the adjacent diaphragm were developed. Moreover, relationships between the relative out-of-plane displacements and vertical stresses induced within the web-gap region were also provided. These developed relationships and surfaces serve as a quick estimate of induced stresses at critical locations in other web-gap regions of the bridge.
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ISBN 13 :
Total Pages : 728 pages
Book Rating : 4.0/5 ( download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1995 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
