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羅佑新1，李曉潤(rùn)1，吳昌棟1，陳水榮1，羅興隆2，隋丙強(qiáng)2

（1 中冶建筑研究總院有限公司， 北京 100088； 2 上海寶冶集團(tuán)有限公司， 上海 200941）

［摘要］科威特中央銀行新總部主塔樓為240m的高層建筑，塔樓平面類似L形，其內(nèi)側(cè)為鋼管混凝土斜交網(wǎng)格結(jié)構(gòu)，外側(cè)為鋼筋混凝土剪力墻。3～5層設(shè)置兩榀巨型轉(zhuǎn)換桁架，桁架支座節(jié)點(diǎn)極其重要且構(gòu)造和受力非常復(fù)雜?；诿绹?guó)標(biāo)準(zhǔn)AWS 2008及Eurocode 3對(duì)該節(jié)點(diǎn)進(jìn)行了簡(jiǎn)化計(jì)算，并采用ANSYS軟件，考慮填充混凝土的材料非線性，對(duì)節(jié)點(diǎn)進(jìn)行了應(yīng)力和位移分析。通過(guò)分析結(jié)果可以看出，該節(jié)點(diǎn)具有較強(qiáng)的強(qiáng)度和剛度，能夠保證節(jié)點(diǎn)的安全及使用要求。

［關(guān)鍵詞］轉(zhuǎn)換桁架； 支座節(jié)點(diǎn)； 簡(jiǎn)化計(jì)算； 有限元分析

中圖分類號(hào)：TU3234文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：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

作者簡(jiǎn)介：羅佑新，碩士，工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email: loysan@163.com。

參考文獻(xiàn)

［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.