原文传递 DYNAMIC MODELING OF BRIDGES: OBSERVATIONS FROM FIELD TESTING.
题名: DYNAMIC MODELING OF BRIDGES: OBSERVATIONS FROM FIELD TESTING.
作者: Casas-JR
关键词: BOX-GIRDER-BRIDGES; SLAB-BRIDGES; CABLE-STAYED-BRIDGES; DYNAMIC-MODELS; ACCURACY-; CORRELATIONS-; FIELD-DATA; RECOMMENDATIONS-
摘要: Different bridge types and design configurations used in bridge engineering result in largely different dynamic mechanisms of response. Therefore, one of the most important problems to resolve about their theoretical dynamic modeling is to choose the most adequate and simple model for a particular bridge. The work carried out during the dynamic testing of several bridges is reviewed. The objective was to check the feasibility and accuracy of various numerical and analytical models assumed for the dynamic behavior of various bridge types (box-girder, slab bridges, and cable-stayed). Experimental field test data were used to derive the dynamic properties of the bridges. The most appropriate analytical models and dynamic properties of the elements used in the discretization mesh were derived for each bridge type on the basis of the correlation between the theoretical and experimental results. Taking these results into account, a set of practical recommendations for the dynamic modeling of different bridge types is proposed.
总页数: Transportation Research Record. 1995. (1476) pp59-68 (7 Fig., 7 Tab., 9 Ref.)
报告类型: 科技报告
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