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Experimental Study on the Dynamic Response of Box Girder Long-Span Bridges under Various Travelling Vehicles  

Lee, Rae-Chul ((주)에스큐 엔지니어링)
Lee, Sang-Youl ((주)에스큐 엔지니어링 기술연구소)
Yhim, Sung-Soon (서울시립대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.8, no.1, 2004 , pp. 129-138 More about this Journal
Abstract
In this study we determine a dynamic analysis of the existing two-span prestressed concrete box girder bridge subjected to moving vehicle loads using the experimental measurements. The moving loads applied in this paper are classified as general travelling, suddenly brake, continuous travelling, reversely travelling and reversely travelling impact loads for increasing velocities. For each travelling load, we search dynamic behaviors and characteristic in various measuring point of box girder section. In addition, the three-dimensional numerical results analyzed by the developed finite element program using flat shell element with six degrees of freedom per a node are compared with the measured experimental data. Dynamic behaviors caused impact loads by suddenly braking, reversely travelling, are bigger than by general travelling in box girder. Three-dimensional numerical results are better than one-dimensional results.
Keywords
Moving vehicles; Box girders; Experimental measurements; 3D-Finite element program; Dynamic responses;
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