长距离等梁高截面矮塔斜拉桥结构设计分析

The Structural Design Analysis of Lower Tower Cable-stayed Bridge with Long Distance and Same Girder Depth Section

针对一座长距离等梁高截面形式的矮塔斜拉桥工程实例进行了有限元结构分析,并在此基础上通过改变桥梁主要结构设计参数(塔高、无索区长度),研究了结构在不同参数变化下的各种力学性能,得出了结构设计参数合理取值范围,为以后同类型桥型的设计提供参考。

Finite element structural analysis has been done on a lower tower cable-stayed bridge with long distance and same girder depth section. On the basis of this, this paper studied various mechanical properties of structure under different parameter changes by altering design parameters of main structure for the bridge（tower height, length of non-cable area） and concluded that the structural design parameters were reasonable in value range, which provided reference for the bridge design of similar type.