大跨度半刚性站台雨棚结构设计与分析

以长春站无站台柱雨棚为工程背景,对大跨度半刚性站台雨棚的结构选型、整体计算及非线性分析进行介绍,提出拉索与雨棚柱的合理夹角、拉索的初始力是该类半刚性风雨棚设计的关键,并应用SAP2000有限元软件进行数值对比分析,得出合理夹角范围及初始力。

Structure Design and Analysis of Long-span Semi-rigid Platform Canopy

This canopy without column on the platform in the Changchun Railway Station was taken as the project example,and the structure type selection,the overall calculation and the nonlinear analysis of the long-span semi-rigid platform canopy were introduced here.Then the author pointed out that the reasonable intersection angle between the backstay cable and the canopy column as well as the initial force of the cable should be regarded as the key points in the design of this kind of semi-rigid canopy.After using SAP2000 finite element software carrying out numerical comparison and analysis,both the scope of reasonable intersection angle and the initial force of the cable have been acquired.