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贵阳201大厦抗连续倒塌分析
林超伟1,2,王兴法1,2,许波1,2,李开伦1,2 ,雷霆1,2 ,熊亮1,2
摘 要
林超伟1,2,王兴法1,2,许波1,2,李开伦1,2 ,雷霆1,2 ,熊亮1,2
(1 法国欧博建筑与城市规划设计公司,深圳 518053; 2 深圳市博艺建筑工程设计有限公司,深圳 518053)
 
摘要]以贵阳201大厦为例,采用MIDAS软件对其子结构的敏感构件进行线弹性拆杆分析,采取控制截面边缘最大应力的简化判定准则,考察杆件1~4共4种单杆失效工况下结构抗连续倒塌能力。对杆件1,2均失效后的子结构进行静力非线性分析,验证框架作为子结构第二道防线的可行性。研究结果表明,在不同敏感构件失效情况下,子结构整体具有多种传力路径,能实现内力重分布,有较高的冗余度;子结构框架能作为第二道防线,结构整体具有较高的抵抗连续倒塌能力。
关键词]连续倒塌;研究方法;评估方法;敏感构件
中图分类号:TU973-13,TU351文献标识码:A文章编号:1002-848X(2012)07-0032-04
 
Research on resistance to progressive collapse of Guiyang 201 Building
Lin Chaowei1,2, Wang Xingfa1,2, Xu Bo1,2, Li Kailun1,2, Lei Ting1,2, Xiong Liang1,2
(1 AUBE Conception Design Architecture Co., Ltd., Shenzhen 518053, China; 2 Shenzhen Boyi Construction Engineering & Design Co., Ltd., Shenzhen 518053, China)
 
Abstract: Taking Guiyang 201 Building as an example, MIDAS software was adopted to analyze sensitive components through linear static alternate path method. Through the simplified rule of taking control of the section on the edge of the greatest stress, resistance to progressive collapse was studied when frame 1~4 remove respectively. A static non-linear analysis was carried out on sub-structure when frame 1~2 remove simultaneously in order to verify the feasibility of the framework as the second defensive line. Results show that the sub-structure can achieve internal weight redistribution through different load paths and has a high degree of redundancy when the different sensitive components fall. The overall structure has a good resistance to progressive collapse.
Keywords: progressive collapse; research method; evaluation method; sensitive components
作者简介:林超伟,硕士,一级注册结构工程师,Email:wei65125036@163.com
 
参考文献
[1]陆新征,李易,叶列平,等. 钢筋混凝土框架结构抗连续倒塌设计方法的研究[J]. 工程力学, 2008, 25(S2): 150-157.
[2]GSA 2003 Progressive collapse analysis and design guidelines for new federal office buildings and major modernization project [S]. Washington D C: the U.S. General Services Administration, 2003.
[3]UFC 4-023-03 Design of structures to resist progressive collapse [S]. Washington D C: Department of Defense,USA, 2005.
[4]王兴法,林超伟,许波,等. 贵阳201大厦结构体系研究[J]. 建筑结构,2012,42(3):10-14,28.
[5]日本钢结构协会、美国高层建筑和城市住宅理事会. 高冗余度钢结构倒塌控制设计指南[M]. 陈以一,赵宪忠,译. 上海:同济大学出版社,2007.
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