罗佑新1，李晓润1，吴昌栋1，陈水荣1，罗兴隆2，隋丙强2

（1 中冶建筑研究总院有限公司， 北京 100088； 2 上海宝冶集团有限公司， 上海 200941）

［摘要］科威特中央银行新总部主塔楼为240m的高层建筑，塔楼平面类似L形，其内侧为钢管混凝土斜交网格结构，外侧为钢筋混凝土剪力墙。3～5层设置两榀巨型转换桁架，桁架支座节点极其重要且构造和受力非常复杂。基于美国标准AWS 2008及Eurocode 3对该节点进行了简化计算，并采用ANSYS软件，考虑填充混凝土的材料非线性，对节点进行了应力和位移分析。通过分析结果可以看出，该节点具有较强的强度和刚度，能够保证节点的安全及使用要求。

［关键词］转换桁架； 支座节点； 简化计算； 有限元分析

中图分类号：TU3234文献标识码：A文章编号：1002848X(2013)06001403

Analysis on support joint of mega transition truss in new head quarters building

of Central Bank in Kuwait

Luo Youxin1， Li Xiaorun1， Wu Changdong1， Chen Shuirong1， Luo Xinglong2， Sui Bingqiang2

(1 Central Research Institute of Building and Construction Co., Ltd., Beijing 100088, China;

2 Shanghai Baoye Group Corp., Ltd., Shanghai 200941, China)

Abstract:The new headquarters building of Central Bank in Kuwait is 240 meters high. The plane shape of the tower is similar to L shape. The inner side of the tower is grid structure with concrete filled steel tubes, and the outer side is RC shear wall structure. Two mega transition trusses with very important and complicated support joints are set on level 3 to 5. Based on AWS 2008 and Eurocode 3, simplified calculation of the joint was given. ANSYS software was used to analyze the stress and deformation of the joint, considering the material nonlinearity of the concrete filled in the pipe. The results show that the joint has strong strength and stiffness, which can satisfy the requirements of safety and using performance.

Keywords:transition truss； support joint； simplified calculation； finite element analysis

作者简介：罗佑新，硕士，工程师，一级注册结构工程师，Email: loysan@163.com。

参考文献

［1］ANSI/AISC 36005 Specification for structural steel buildings［S］. Chicago∶American Institute of Steel Construction, Inc., 2005.

［2］AWS D11/D11M∶2008 Structual welding code steel ［S］. 21st ed. Miami∶American Welding Society, 2008.

［3］BS EN199318∶2005 Eurocode 3∶Design of steel structuresPart 18∶Design of joints ［S］. London∶ European Committee for Standardization, 2005.