MIDAS/Civil在预应力空心板简支梁桥结构抗震分析中的应用

Application of MIDAS/Civil in Seismic Analysis of Simple Beam Bridge with Pre-stressed Hollow Slab

以有限单元法基本理论为基础,介绍了有限元通用软件MIDAS/Civil在预应力空心板简支梁桥结构抗震计算中的应用问题.采用三维有限元法,实现了预应力空心板简支梁桥的动力特性模拟,分析了在E1、E2地震作用下,桥梁各控制截面的抗弯能力、抗剪能力,以及支座厚度和抗弯稳定性等抗震性能,并提出切实可行的抗震措施,为桥梁施工质量控制提供必要的理论指导与技术支持.

Based on Finite Element Method（ FEM）, the common software MIDAS/Civil has been used in seismic calculation of Simple beam bridge with pre - stressed hollow slab. 3 - D FEM is used to do dynamics simulation for simple beam bridge with pre -stressed hollow slab, under the earthquake action of El and E2, the seismic property such as anti - bending, anti - shear capacity of the key sections, the bearing thickness and bending stability have been analyzed, the practical seismic measures have been proposed. Therefore, the necessary theoretical guidance and technical support will be provided for quality control of the bridge construction.