期刊
STRUCTURAL SAFETY
卷 30, 期 5, 页码 394-404出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.strusafe.2006.11.006
关键词
bridge; assessment; statistics; extreme value; traffic; load
In recent years, highway bridge load assessment has been recognised as an area through which savings can be made by avoiding unnecessary bridge refurbishment and replacement. Load effects in bridges result from single truck crossings or multiple-truck presence events which are, statistically, not identically distributed. Conventional approaches fit statistical distributions to mixtures of non-identically distributed load effects. Inaccuracies in the conventional approach are identified and an alternative approach is developed to find the characteristic load effects. Theoretical and field data are used to show the potential implications of conventional techniques and to demonstrate the application of the new approach. (C) 2007 Published by Elsevier Ltd.
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