某体育馆结构的整体与单独分析对比

The Comparison of a Stadium's Comprehensive and Individual Analysis

对于体育馆类大跨度空间结构的设计与分析,传统方法往往把上部钢结构屋盖和下部混凝土结构分别单独分析,这种方法与整体分析相比,既没有考虑上部结构刚度对下部结构的有利作用,也没有考虑下部结构对上部结构反应效应的放大;本文以济宁射击射箭馆为例,对该结构的整体模型与单独模型进行模态对比和在静力,地震,风,温度等作用下的响应进行对比,证实该结构类型在整体分析下能够得到更为合理的结果,同时为类似的工程设计提供参考。

For the design and analysis of most long-span structures like stadiums, the traditional individual analysis often calculates the upper steel roof structure and the lower RC structure separately. Compared with the comprehensive method, the former one haven＇t take account of the beneficial effect of the upper structural stiffness for the whole structure and the amplification effect of the upper structure due to the limited stiffness of the lower RC structure. This paper analy＇z^s the structure of JiNing Shooting Stadium under the action of gravity, earthquake, wind and temperature through comparing structure effects in the two methods mentioned above. It proves that the comprehensive analysis is more reasonable and reliable, and the experience can also b e summarized to provide a reference for similar project designs.