巨型钢框架-预应力拉索支撑结构施工方案比较分析

COMPARATIVE ANALYSIS OF CONSTRUCTION SCHEMES FOR MEGA STEEL FRAME-PRESTRESSED CABLE BRACING STRUCTURES

为研究巨型钢框架-预应力拉索支撑结构施工,设计了8种施工方案。对8种施工方案下结构的变形和内力以及索力作对比分析,同时将上述结果与一次性加载方案进行比较分析。结果表明:结构内力和变形以及索力因施工方案的不同而有差异;部分方案下结构内力和变形以及拉索内力较小。分析结果可为巨型钢框架-预应力拉索支撑结构的施工提供参考。

In order to study the construction of mega frame-cable bracing structures, eight construction schemes were designed.Comparative study was made on the structural deformation and inner force of each scheme, as well as that under disposable loading scheme.Results show that the structural force and deformation differ from each other under different construction schemes and show relatively smaller values under some construction schemes, which can provide some guidance for the construction of mega frame-cable bracing structures.