装配式斜交空心板桥受力特性分析

Analysis on Mechanical Properties of Assembly Skew Hollow Slab Bridge

运用空间板壳有限元法,对装配式斜交空心板桥弹性阶段的受力特性进行全面分析.计算装配式斜交空心板桥的内力影响面,得到内力的控制截面.同时对比分析了装配式斜交空心板桥、整体式斜交空心板桥与装配式正交空心板桥的内力、支座反力以及变形的特点,为装配式斜交空心板桥的设计提出了若干值得注意的问题及其理论依据.

In this paper, the finite element method of space slab shell programmed is adopted to analyze the elastic properties of the bridge. By calculating the internal force influence surface of assembly skew hollow slab bridge, the internal force-controlling section is attained. Some conclusions which put forward some remarkable problems and theories for the design of the skew hollow are drawn from comparing and analysing the internal force, bearing reaction and deformation of assembly skew slab bridges, monolithic skew bridges and perpendicular one.