矮塔斜拉桥的优选设计方法

Optimized Design of Extradosed Bridges

结合一座跨径为115 m+210 m+115 m的矮塔斜拉桥方案,以正交试验原理为基础,选取影响矮塔斜拉桥结构性能的8个因素,结合数值方法进行了18次正交试验,得到了各因素的各水平对目标的影响曲线,通过对结果的分析,可以确定各因素在限定范围内的最佳水平。推荐了一种定量的分析方法,确定各因素的各水平对目标的影响值,可以更方便地获得各因素的最佳水平。

Based on an 115 m ＋210 m ＋ 115 m extradosed bridge, 8 sensitive parameters were studied with 18 numerical analyses based on the orthogonal test. An optimized design was achieved based on the parameter sensitivity study. This paper recommends a quantitative analysis method and an optimized design can be ob-tained by analysis of the influence factors.