某体育馆屋盖马鞍形钢结构体系分析与抗连续性倒塌研究  

Structural Analysis and Anti-Progressive Collapse Study on a Saddle-Shaped Steel Roof System

作　　者：朱保兵 

机构地区：[1]上海城开(集团)有限公司,上海200030 [2]上海寰宇城市投资发展有限公司,上海200030

出　　处：《建筑钢结构进展》2016年第3期49-55,62,共8页Progress in Steel Building Structures

基　　金：上海市青年科技启明星计划项目(11QB1403200)

摘　　要：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 study the unique properties of a saddle-shaped steel roof structure,the whole roof is divided into periphery structure and internal field structure for mechanical analysis.Joint design is presented,and the structural calculation parameters are summarized.Elastic seismic analysis shows the ultimate state and overall mechanical performance of structure can meet the design requirement.Geometric nonlinearity stability analysis on laterally resistant inclined columns is carried out.The calculation results show the instability does not occur.Through anti-progressive collapse analysis on the entire structure,critical structural members are identified. With the sensitivity analysis,the importance of the members is evaluated.A simplified analysis method is used for laterally resistant inclined columns.The final results of analysis show the entire structure does not collapse with member failure.The safety and reasonability of structural is verified.

关 键 词：外围结构 内场结构 稳定分析 抗连续倒塌分析 敏感性分析 

分 类 号：TU318[建筑科学—结构工程] TU352.1