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目前人行悬索桥的设计过程一般是根据同类结构己有的设计经验假定矢跨比,主缆,主塔等尺寸和数据,然后在此基础上进行结构的内力分析,以验算是否满足结构的应力、位移等约束条件。如果计算结果不满足条件,再重新选取截面进行计算,由于过程繁琐且不连续,设计方案很可能为非最佳方案。针对以上问题,本文采用ANSYS中的优化模块对人行悬索桥的部分结构尺寸采用优化的方法进行设计,简洁快速地得出了一些有用的结论。
At present, the designing process of the pedestrian suspension bridge is generally based on the design experience of the similar structure, assuming the size of the span-wise ratio, the main cable, the main tower and other data, and then analyzing the internal force of the structure based on this to verify whether the structural stress, Displacement and other constraints. If the calculation results do not meet the conditions, and then re-select the cross-section calculation, the process is cumbersome and discontinuous, the design is likely to be non-optimal solution. In view of the above problems, this paper adopts the optimization module in ANSYS to design the partial structure size of the pedestrian suspension bridge by using the optimized method, and concludes some useful conclusions in a concise and quick manner.