摘要
贵州省地质资料馆暨地质博物馆项目—单体1为大跨大悬挑连体高层钢结构建筑,安全等级为一级,应满足抗连续倒塌概念设计的要求。结合本工程整体结构布置,选取5榀大跨连体及大悬挑桁架,以杆件应力为依据从中选取7个关键构件,采用改变传力路径法对结构抗连续倒塌能力进行了分析。结果表明:本工程结构具有较好的整体性及冗余度,能够通过较好的二次传力途径实现抗连续倒塌能力。
The Guizhou Geological Archives And Geological Museum Unit one is a steel frame-epicenter-braced,largespan,large cantilevered connected high-rise steel structure. As the safety level of the project is class one,it is required to satisfy the demands of the conceptual design of the anti-progressive collapse analysis. Baesd on the overall structural arrangement,five large-span connected and large cantilevered truss were chosen,in which 7 key components were selected according to the assessment of the components’ stress value. The alternate path method was used to perform the antiprogressive collapse analysis,and the result suggests the good integrity and redundancy of the structure,in addition,the structure has the ability to resist the progressive collapse through an alternate path.
出处
《建筑结构》
CSCD
北大核心
2018年第S1期284-287,共4页
Building Structure
关键词
抗连续倒塌
改变传力路径法
关键构件
连体结构
大悬挑结构
anti-progressive collapse analysis
alternate path method
key component
connected structure
large cantilevered structure
