3层RC框架的抗连续倒塌设计  

Design method to resist progressive collapse for a three story RC frame

作　　者：梁益[1] 陆新征[1] 李易[1] 叶列平[1] 江见鲸[1] 

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《解放军理工大学学报（自然科学版）》2007年第6期659-664,共6页Journal of PLA University of Science and Technology(Natural Science Edition)

基　　金：国家"十一五"科技支撑计划资助项目(2006BAK01A02-09);清华大学基础研究基金资助项目(JC2007003)

摘　　要：结构的连续倒塌已成为严重威胁公共安全的重要问题。国外自1968年英国R onan Point公寓倒塌事件发生以来,已经对连续倒塌问题进行了30余年的研究,并编制了相关设计规范,而我国规范目前尚未规定详细抗连续倒塌设计方法。参考美国国防部编制的《结构抗连续倒塌设计》(DoD 2005)提供的设计流程,对按照我国现行混凝土结构设计规范设计的3层钢筋混凝土框架进行了连续倒塌仿真,分析了其抗连续倒塌能力。并应用拉结强度法和拆除构件法,对该框架进行了抗连续倒塌设计,建立了将国外规范中的抗连续倒塌设计方法应用于我国框架结构的设计实例,指出了其中存在的一些问题。Currently, the progressive collapse of the structures has become a serious threat to the public safety. Since the collapse of the Ronan Point Tower in United Kingdom in 1968, North America and Europe have researched on this issue for more than 30 years and developed relevant design codes and design guides, such as GSA 2003, DoD 2005 and EuroCode 1. However, codes in China have not yet proposed in detail on the resistance of the progressive collapse. Hence, based on the design process proposed in DoD2005, the capacity to resist the progressive collapse of a typical Chinese 3-story reinforced concrete （RC） frame was analyzed. Then the frame was re-designed with the Tie Force Method and the Alternate Path Method proposed in DoD 2005 to provide examples for the progressive collapse prevention design for Chinese frame structures. And some problems when applying foreign code to Chinese buildings were pointed out.

关 键 词：连续倒塌 混凝土框架 仿真 拉结强度法 拆除构件法 

分 类 号：TU312[建筑科学—结构工程]