箱拱优化分析

Optimization Analysis of Box Arch Bridges

本文将优化分析的数学模型引入拱式结构的有限元分析中，对箱形拱桥进行了纵断面优 化和横断面优化，得出以最小造价为目标函数的最优解答．文末给出了一个实例．

In the paper optimization mathematics models are introduced into the finite ele- ment analysis of arch structures. The box arch bridge are optimized in longitudinal vertical section and lataral cross section in order to get the optimization result-the minimum cost of the structure. An example is given.