影响矩阵法确定斜拉桥的合理成桥状态

Influence matrix method to determine the rational dead load state of cable-stayed bridge

结合跨海斜拉桥范和港大桥这一工程实例,提出了如何基于影响矩阵法的原理,并结合相关软件,来快速得到影响矩阵,最终计算了范和港大桥的合理成桥索力,结果符合规范及工程计算的精度要求,方法简单方便,具有一定的借鉴意义。

Combining with crossing-ocean cable-stayed Fanhe Harbour bridge engineering example. The author rapidly acquires the influence matrix with related software on the basis of the theory of influence matrix method and calculates the optimum cable tensions of the Fanhe Harbour bridge in dead load state. The results meet the requirement of the specification and engineering calculation accuracy. The method is simple and convenient to find out the optimum cable tensions under dead loads, worth considering.