摘要
复杂大跨空间钢结构具有覆盖面积大、结构冗余程度相对较高的特点,但由于网架与网壳结构设计富余度较小,在极端情况下易出现由某些局部构件失效或局部失稳导致的整体结构失效。综述复杂大跨空间钢结构的连续倒塌机制研究现状与设计方法,结合北京新机场航站楼核心区钢结构屋盖施工过程的抗连续倒塌监测,探讨提升复杂大跨空间钢结构建造过程安全性的方法。
Wide-span complex space steel structure has many characteristics, such as large area and relatively high structural redundancy, etc., but grid and shell structure having relatively little design redundancy may suffer from integral structure failure due to local component failure or local instability under extreme conditions. This paper made an overview on the status quo of study on progressive collapse mechanism and design method of wide-span complex space steel structure and introduced the progressive collapse monitoring technique adopted during steel structure roof construction of the cored area of Beijing Daxing International Airport, to of wide-span complex space steel structure. explore the method for improving the construction safety
作者
段先军
刘宇飞
毕登山
雷素素
冯绍攀
李海兵
DUAN Xian-jun;LIU Yu-fei;BI Deng-shan;LEI Su-su;FENG Shao-pan;LI Hai-bing(Beijing Urban Construction Group Co.,Ltd.,100085,Beijing,China;Department of Civil Engineering,Tsinghua University,100084,Beijing,China;Central Research Institute of Building and Construction Co.,Ltd.,MCC.,100088,Beijing,China)
出处
《建筑技术》
2018年第9期945-948,共4页
Architecture Technology
基金
北京市科技计划课题(Z161100005116009)
关键词
复杂大跨空间结构
钢结构
连续倒塌
监测
wide-span complex space structure
steel structure
progressive collapses
monitor
