福州海峡国际会展中心抗连续倒塌分析  

Progressive collapse analysis of Fuzhou Strait International Convention and Exhibition Center

作　　者：张煊铭 蒋庆[2] 张伟[1] 沈万玉 郑超磊[1] 

机构地区：[1]商丘工学院土木工程学院,商丘476000 [2]合肥工业大学土木与水利工程学院,合肥230009 [3]安徽富煌钢构股份有限公司,巢湖238076

出　　处：《建筑结构》2017年第16期14-18,共5页Building Structure

摘　　要：以福州海峡国际会展中心主体结构为工程背景,对其进行抗连续性倒塌分析。基于应变能的分析原理,采用拆除构件法对主体结构进行响应分析,确定对结构承载力影响最大的关键性构件。采用变换荷载路径法对移除关键构件的残余结构进行抗连续性倒塌分析。结果表明,移除关键构件后结构竖向挠度超过设计限值,结构失去正常使用功能,但构件应力比均未超限且移除的影响局限在其受力范围内,所以结构具有良好的抗连续性倒塌能力。The progressive collapse analysis of the main structure of the Fuzhou Strait International Convention and Exhibition Center was carried out. Based on the analysis of the strain energy, the response of the main structural members was analyzed by using the member removal method to determine the key structural members that have largest impact on structural bearing capacity. The progressive collapse analysis was conducted on the residual structure without the key components by using the load path transforming method. The results show that the vertical deflection of the structure without key members exceeds the design limit and the structure loses normal function, but the stress ratio of the member is not out- of-code and the effect of member removal is limited in its stress range, so the structure has good resistance to progressive collapse.

关 键 词：钢结构 拆除构件法 关键性系数 变换荷载路径法 连续倒塌 

分 类 号：TU393[建筑科学—结构工程]