Download or read book Dynamic Impact Factors for Bridges written by David I. McLean and published by Transportation Research Board. This book was released on 1998 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to state department of transportation and consulting bridge, structural, and research engineers. The synthesis describes the current state of the practice for determining dynamic impact factors for bridges. Information for the synthesis was collected by surveying U.S. and Canadian transportation agencies and by conducting a literature search using domestic and foreign sources. This report of the Transportation Research Board documents relevant background and recent information with regard to vehicular dynamic load effects on bridges. It provides details on the basic concepts of bridge dynamics, including identification of the main variables affecting bridge dynamic response. In addition, current code provisions for accounting for vehicular dynamic load effects for new bridge design and load evaluation of existing bridges are reported, including a discussion on the background of the provisions. Finally, a discussion of observed field problems associated with vehicular dynamic load effects, as obtained from the survey, are included.

Download or read book Impact Factors for Highway Bridges written by HVS GangaRao and published by . This book was released on 1992 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper deals with the review of impact or dynamic allowance factors for highway bridges that are being implemented by various countries around the world. This review has specifically emphasized the field results of other researchers and concluded that most of the studies have noted that the current American Association of State Highways and Transportation Officials (AASHTO) Specifications grossly underestimate the impact factors for highway bridges. The review of impact factors herein has concluded further that the AASHTO Specifications on impact for highway bridges are a function only on the span length, even though many other important parameters (for example, road roughness, vehicle and bridge dynamics) play a major role in terms of bridge dynamics.

Download or read book Impact Factors of Highway Bridges Under Moving Vehicular Loads written by Xinfeng Yin and published by . This book was released on 2018-10-08 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Impact Studies on Highway Bridges written by Almon Homer Fuller and published by . This book was released on 1925 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Dynamic Impact Factors for Steel Highway Bridges written by Sylvester E. Uwanaka and published by . This book was released on 1989 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Safety of Bridges written by Parag C. Das and published by Thomas Telford. This book was released on 1997 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discusses "the safety concepts which form the basis of modern bridge design and assessment codes" and "the background work carried out in the development of the new UK bridge and route-specific traffic loading requirements, and the proposed whole life performance-based assessment rules" -- Preface.

Download or read book Impact in Highway Bridges written by Charles Frank Scheffey and published by . This book was released on 1951 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Review of Impact Factors for Design of Highway Bridges written by Athol Carr and published by . This book was released on 1982 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Perspectives written by Peter Dawe and published by Thomas Telford. This book was released on 2003 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a detailed examination of all aspects of traffic loading and describes how design and assessment methods have evolved to deal with them.

Download or read book Bridge Rating Practices and Policies for Overweight Vehicles written by Gongkang Fu and published by Transportation Research Board. This book was released on 2006 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 359: Bridge Rating Practices and Policies for Overweight Vehicles explores overweight vehicle permit processes. The report includes information on state and provincial bridge rating systems, bridge evaluation practices, and permit policies as they relate to overweight and oversize vehicles. The report is designed to help in the understanding of the reasons for nonuniform permitting practices. The report reviews specifications, software types, treatment of nonstandard configurations, and allowance for in-place dead loads; processes of permit review; and personnel assigned to permit review.

Download or read book Redundancy in Highway Bridge Superstructures written by Michel Ghosn and published by Transportation Research Board. This book was released on 1998 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vehicle Tire Pavement Interface written by John Jewett Henry and published by ASTM International. This book was released on 1992 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamic Effect of Traffic Loading on Highway Bridges written by Muhammad Uzair Khan and published by . This book was released on 1997 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report written by and published by . This book was released on 1964 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Reports written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1952 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamics of Highway Bridges written by Don Albert Linger and published by . This book was released on 1960 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the design of highway bridges, the static live load is multiplied by a factor to compensate for the dynamic effect of moving vehicles. This factor, commonly referred to as an impact factor, is intended to provide for the dynamic response of the bridge to moving loads and suddenly applied forces. Many investigators have published research which contradicts the current impact formula 1, 4, 17. Some investigators feel that the problem of impact deals not only with the increase in over-all static live load but that is an integral part of a dynamic load distribution problem 24. The current expanded highway program with the large number of bridge structures required emphasizes the need for investigating some of the dynamic behavior problems which have been generally ignored by highway engineers. These problems generally result from the inability of a designer to predict the dynamic response of a bridge structure. Many different investigations have been made of particular portions of the overall dynamic problem. The results of these varied investigations are inevitably followed by a number of unanswered questions. Ironically, many of the unanswered questions are those which are of immediate concern in the design of highway bridges, and this emphasizes the need for additional research on the problem of impact.

Download or read book Design of Highway Bridges for Extreme Events written by Michel Ghosn and published by Transportation Research Board. This book was released on 2003 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapter 1. Introduction -- Chapter 2. Reliability models for combinations of extreme events -- Chapter 3. Calibration of load factors for combinations of extreme events -- Chapter 4. Conclusions and future research -- References -- Glossary of notations -- Appendixes.