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为了揭示某体育馆屋盖马鞍形钢结构体系的新颖独特,将整体屋盖划分为外围结构和内场结构进行受力分析,介绍了节点形式,总结了结构的各项计算参数。弹性地震分析表明,结构的极限状态分析结果和整体受力性能满足设计要求。针对抗侧斜柱进行了几何非线性稳定分析,计算结果表明未出现失稳现象。通对整体结构的抗连续性倒塌分析,判断出重要构件并借助敏感性分析将构件的重要性进行了排序,并针对抗侧斜柱采用了简化分析方法,最终分析结果表明,杆件失效后整体结构不会发生垮塌。证明了结构方案的安全性和合理性。
In order to reveal the novelty and uniqueness of the saddle-shaped steel structure system of a gymnasium roof, the whole roof is divided into the external structure and the internal field structure for stress analysis. The node forms are introduced and the structural parameters are summarized. Elastic seismic analysis shows that the results of the ultimate state analysis of the structure and the overall force performance meet the design requirements. The geometric nonlinear stability analysis of anti-side inclined column was carried out. The calculation results show that there is no instability. Through the analysis of the anti-collapse of the whole structure, the important components are judged and the importance of the components is sorted by the sensitivity analysis. A simplified analysis method is applied to the anti-side inclined column. The final analysis results show that after the failure of the rod The overall structure will not collapse. It proves the safety and rationality of the structure scheme.