摘要
钢结构柱脚的锚固连接节点是既有地下室上新建钢结构高层的设计关键,同时也是整个上部结构的嵌固端部位。以上海市某一改扩建医院项目为例,选取三个典型节点,对嵌固端部位的新型钢柱连接节点设计进行了有限元分析和节点缩尺模型试验。结果表明:该新型节点设计可以有效传递上部结构的柱底内力,达到中震不屈服的抗震性能目标,且具有较高的安全储备。同时,针对该节点设计的特点,文中也给出了可行的施工方案。
The key to the design of the new steel high-rise structure above the existing basement is the anchoring joint of the column feet of the upper steel structure,which is also the fixed end of the whole structure.Taking three typical joints from a hospital reconstruction and expansion project in Shanghai as an example,the finite element analysis and scale model joint test of the new steel column joint design at the fixed end are carried out.The results show that the new joint design can effectively transfer the internal forces at the bottom of the upper column,achieve the goal of unyielding seismic performance under medium earthquake,and has a high safety reserve.At the same time,according to the characteristics of the design of the joint,the paper also gives a feasible construction scheme.
作者
王玮
蔡艳清
吴学淑
WANG Wei;CAI Yanqing;WU Xueshu(East China Urban Architectural Design&Research Institute,Arcplus Group,Shanghai 200070,China;Department of Building Engineering,Tongji University,Shanghai 200092,China)
出处
《建筑结构》
CSCD
北大核心
2021年第S01期1436-1440,共5页
Building Structure
关键词
钢结构柱脚的锚固
有限元分析
节点试验
抗震性能目标
anchorage of steel structure column foot
finite element analysis
joint test
seismic performance
