斜拉桥索力优化的影响矩阵法

Influence Matrix Method of Cable Tension Optimization for Cablo-stayed Bridges

通过广义影响矩阵概念，将斜拉桥优化的目标函数统一用索力变量与广义影响矩阵表示，导出了斜拉桥索力优化的影响矩阵法这种方法既可用于确定成桥态合理状态的索力，也可用于施工阶段的索力优化和成桥后的索力调整。

In this paper, influence matrix methed of cable tension optimization for cable - stayed bridges is developed. In the methed, various object functions for the optimization of the bridge are uniformly expressed by cable tensions and influence matrixed in the concept of general influence matrix. The methed can not only be applied to determine the optimun cable tensions in reasonable stae of the bridge, but also be used to optimize the bridge during construction and on completion. The methed used in programming is proved to be efficient and easy to realize.