摘要
对某办公楼悬挑14.45m的报告厅大跨度钢桁架结构体系选择、性能目标、舒适度、施工模拟、连续倒塌及节点有限元进行了分析。分析结果表明,对于大悬挑桁架,竖向地震作用影响不能忽略,构件内力计算需考虑楼板和不考虑楼板作用两种情况包络设计,周边构件配筋设计需要考虑桁架构件传递的轴向拉力;结合施工顺序复核构件受力。
The structural system selection,performance objectives,comfort level,construction simulation,continuous collapse and joint finite element analysis of the cantilevered steel truss of a large-span lecture hall of an office building of 14.45 metres are carried out.The analysis results show that for large cantilevered trusses,the effect of vertical seismic action cannot be ignored.The calculation of the internal force of the components needs to consider the envelope design of the floor and the floor action,and the reinforcement design of the surrounding components needs to consider the axial tension transmitted by the truss components.Review the stress of components in combination with the construction sequence.
作者
蒋科卫
顾浩声
郑建顺
JIANG Kewei;GU Haosheng;ZHENG Jianshun(Shanghai TIANHUA Architecture Planning&Engineering Co.,Ltd.,Shanghai 200235,China)
出处
《建筑结构》
CSCD
北大核心
2022年第S01期1150-1154,共5页
Building Structure
关键词
大悬挑钢桁架
舒适度
连续倒塌
施工模拟
有限元
large cantilever steel truss
comfort level
continuous collapse
construction simulation
finite element
作者简介
第一作者:蒋科卫,硕士,高级工程师,一级注册结构工程师,注册咨询工程师(投资),Email:JiangKewei@thape.com.cn。
