Dynamic impact factors for bridges
By: David I. McLean and M. Lee Marsh.
Contributors: Marsh, M. Lee.; National Cooperative Highway Research Program.; National Research Council (U.S.). Transportation Research Board.; American Association of State Highway and Transportation Officials.; United States. Federal Highway Administration.
Series: Synthesis of highway practice ;; 266
Publisher: National Academy Press
Published: 1998
Place of publication: Washington, D.C
Language: eng
Number of pages: 60
Subjects: Bridges -- Design and construction.; Bridges -- Live loads.; Impact.; Load factor design.
Description: 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.
Notes: Includes bibliographical references (p. 51-54).
At head of title: "National Cooperative Highway Research Program."
"Project 20-5 FY 1996(Topic 28-05)"--T.p. verso.
"Transportation Research Board, National Research Council."
"Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."