大型梁板结构高效计算及在桥梁设计中的应用

High efficiency calculation of large beam and plate structure and its application in bridge design

大型建筑结构大多由梁、板、壳结构构成,为了实现快速计算仿真,本文研究了大型板梁结构的高效计算方法,并应用在桥梁设计中.首先,借用通用有限元软件ABAQUS建立了一座中型斜拉桥的高效计算有限元模型,对桥梁静载荷下变形与应力情况进行了分析.然后,分析桥梁的固有频率与相应振型,并与建筑专业软件SOFISTI仿真结果作了比较,获得了非常一致的结果.

In order to realize the fast computation simulation, the high efficiency calculation method of large beam and plate structure is studied and applied in bridge design. The finite element model of a medium cable- stayed bridge was established by using the general finite element software ABAQUS, and the deformation and stress of the bridge beam static load were analyzed. Then, the natural frequencies and corresponding modes of the bridge were analyzed, and the results were compared with the simulation results of SOFISTI.