摘要
结合某大学理学院复杂连体超限高层结构,首先对高位连体桁架连接方案进行了选型分析;其次分析了连体结构在小震和风荷载作用下的各项指标,并采用大震弹塑性时程分析方法检验结构薄弱层层间塑性位移角;最后对连接体楼板和连接体与塔楼连接节点在中震作用下进行了应力分析。分析结果表明:高位连接体与两边塔楼的连接形式应综合考虑连接体刚度、连接体与两边塔楼变形协调情况、建筑效果、实施难度等因素;连接体容易造成刚度和抗剪承载力突变,宜采用弹塑性动力时程分析结构薄弱层的层间弹塑性位移角,保证结构薄弱层的抗倒塌要求。
The Based on the complex out-of-code connected structure of a Science College,Firstly,this paper analyzes the connection schemes for high rise connecting truss;Secondly,this paper analyzes the indexes of the connected structure under small earthquake and wind load,and the elastoplastic time history analysis is adopted to review the plastic displacement angle between the weak layers of the structure.Finally,the stress analysis is carried out on connection floor and the connection node between connector and towers under the action of moderate earthquake.The results indicate that,in order to choose a reasonable connection form between high level connector and towers,the he stiffness of the connector,the deformation coordination between connector and towers,the construction effect and the difficulty of implementation should be considered comprehensively;It is easy to cause sudden changes of stiffness and shear capacity by connectome,In order to ensure the anti collapse requirements for the weak layer of the structure,the elastoplastic dynamic time history method should be used to analyze the elastic-plastic displacement angle of the weak layers of the structure.
作者
吴韶源
黄桂新
WU Shaoyuan;HUANG Guixin(Shenzhen Dongda International Engineering Design Co.,Ltd.,Shenzhen 518042,China)
出处
《建筑结构》
CSCD
北大核心
2021年第S01期146-151,共6页
Building Structure
关键词
复杂连接
超限高层结构
连体桁架
连接体
刚性连接
柔性连接
弹塑性时程分析
complex connected structure
out-of-code high-rise structure
connected truss
connectome
rigid connection
flexible connection
elastoplastic time history analysis
作者简介
吴韶源,一级注册结构工程师,Email:604752491@qq.com;通信作者:黄桂新,硕士,一级注册结构工程师,Email:248992040@qq.com。
