自锚式悬索桥索塔横梁空间网格实体分析

Analysis of the spatial grid entity of self-anchored suspension bridge

自锚式悬索桥在进行设计时,索塔的造型是设计中的亮点,以至于索塔通常造型独特,结构复杂,依靠平面杆件计算软件难以模拟实际复杂的应力状态,通常采用有限元建模分析的方法进行计算,以一座自锚式悬索桥索塔横梁为研究对象,利用空间有限元程序MIDAS/FEA建立索塔空间实体网格模型,通过三维模型对横梁进行设计分析。

Since the anchor in the design of suspension bridges,the modelling of cable tower is the bright spot in design,so that the cable tower is usually a unique,complex structure,rely on the flat bar calculation software is difficult to simulate the actual complex stress state,usually calculated by the method of finite element modeling,this paper takes a self-anchored suspension bridge towers beam as the research object,the use of the space finite element program MIDAS/FEA cable tower space entities in grid model is set up,through the three-dimensional model in beam design analysis.