Abstract：In constructing and operational phase process, bridge structure stress condition is changing constantly, and many kinds of loads' effect on the bridge superstructure during operational phase makes the bridge superstructure stress condition in the unceasing change. This paper analyzed the bridge superstructure using the finite element software, established finite element model closing to the actual situation which can simulate more accurately the different bridge stress condition effecting on the superstructure. This study draws the environment drive law getting down from the bridge dynamic observed value and takes it as the objective function, takes the longitudinal spring constant, the crosswise spring constant and ledger wall longitudinal stiffening rib thickness and roof thickness as the revision parameter, and carries out the model to revise to the continual rigid frame beam bridge. The revision result indicates that after the revision, finite element model's dynamic performance and actual result's error is only 3%, and the structure finite element model after revision may provide the reliable basis for the bridge damage monitor, the whole appraisal as well as the deep research.
张彬，滕飞. 动力作用下钢箱连续梁桥有限元模型修正[J]. 辽宁工程技术大学学报(自然科学版), 2015, 34(7): 816-820.
ZHANG Bin, TENG Fei. Under dynamic action of continuous steel box girder bridge finite element model revision. Journal of LNTU.Natural Science, 2015, 34(7): 816-820.