Download or read book Fatigue and Fracture Library for the Inspection Evaluation and Repair of Vehicular Steel Bridges written by Phil Fish and published by . This book was released on 2015-04-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inspection and Management of Bridges with Fracture critical Details written by Robert J. Conner and published by Transportation Research Board. This book was released on 2005 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Heat straightening Repair of Damaged Steel Bridge Girders written by Robert J. Connor and published by Transportation Research Board. This book was released on 2008 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
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.
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 1984-06-20 with total page 348 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.
Download or read book Fatigue and Fracture Evaluation for Rating Riveted Bridges written by John W. Fisher and published by Transportation Research Board National Research. This book was released on 1987 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fatigue Evaluation Procedures for Steel Bridges written by Fred Moses and published by Transportation Research Board National Research. This book was released on 1987 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fatigue Life of Riveted Steel Bridges written by Björn Åkesson and published by CRC Press. This book was released on 2010-04-21 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
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.
Download or read book Load Induced Fatigue Category of Hand Holes and Manholes written by F. J. Bonachera Martín and published by . This book was released on 2018-02-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Current steel bridge design and evaluation practices assume that large inspection access holes, such as manhole and hand holes are presently classified as category D details. While category D is adequate for the fatigue evaluation of small open holes, such as an empty bolt holes, this has been shown to be overly conservative when the dimensions of the hole are larger. Specifically, the stress concentration of a hole decreases as the size of the hole relative to the size of the plate increases. In order to verify whether the reduction in stress concentration is significant enough to grant an improvement in the fatigue category, a parametric study using finite element analysis was conducted. The results of the parametric study revealed that larger holes may be reclassified as category C fatigue-prone details when certain geometrical features are met. To assist the implementation of the research findings, the current report also includes recommended modifications to the AASHTO LRFD Bridge Design Specification.
Download or read book Fatigue of Bridge Structures written by John W. Fisher and published by . This book was released on 1989 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distortion induced Fatigue Cracking in Steel Bridges written by John W. Fisher and published by Transportation Research Board National Research. This book was released on 1990 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Evaluation and Repair of Damaged Steel Bridge Members written by George O. Shanafelt and published by Transportation Research Board National Research. This book was released on 1984 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Inspection Evaluation and Repair of Hydraulic Steel Structures written by and published by . This book was released on 2001-12-01 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual describes the inspection, evaluation, and repair of hydraulic steel structures, including preinspection identification of critical locations (such as fracture critical members and various connections) that require close examination. Nondestructive testing techniques that may be used during periodic inspections or detailed structural inspections are discussed. Guidance is provided on material testing to determine the chemistry, strength, ductility, hardness, and toughness of the base and weld metal. Analyses methods that can be used to determine structure safety, safe inspection intervals, and expected remaining life of the structure with given operational demands are presented. Finally, considerations for various types of repair are discussed.
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:
Download or read book Evaluation and Repair of Wrought Iron and Steel Structures in Indiana written by Mark D. Bowman and published by . This book was released on 2004-06-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
