摘要
北京保利望京国际广场1号塔楼高160 m,由巨型斜交网格外框筒+钢筋混凝土内筒组成,其中网格外筒为钢管混凝土斜柱交叉组成。由于钢管混凝土柱斜向交叉相贯,导致相交节点几何构造复杂,其受力也较为复杂。采用大型通用有限元软件ABAQUS对节点进行有限元分析,分析出节点的极限承载力,与试验结果进行对比,验证了数值仿真分析的可行性,并对节点的安全性进行了评价,依据试验与数值分析的结果,优化了节点几何构造。有限元分析可为节点设计提供有益参考数据。
The number one tower of Beijing Poly Wangjing International Plaza is 160m in height. The structural system is the new tube- in-tube system,which is composed of the huge steel tube confined concrete （STCC） obliquely crossing lattice exterior tube ＋ reinforced concrete central tube. Because of the STCC columns obliquely intersect, the construction measures and the stresses distribution of the connection are complex. A finite element method （FEM） analysis on the connection using the software ABAQUS was conducted,joint ultimate capacity were also analyzed, and results were compared with the experimental results, which validated by numerical simulation analysis of the feasibility of nodes and evaluate the security. Based on the experimental and numerical analysis of the results, the joints geometric structure were optimized. Finite element analysis for the joint design would be benefit to provide useful reference data for the design of such joints.
出处
《四川建筑科学研究》
2014年第2期61-64,85,共5页
Sichuan Building Science
