| 东莞篮球中心大跨度复杂钢屋架施工技术 |
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| 引用本文： | 嵇康东,杨文军,章亮,朱继华,何辉. 东莞篮球中心大跨度复杂钢屋架施工技术[J]. 施工技术, 2012, 41(9): 15-19 |
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| 作者姓名： | 嵇康东 杨文军 章亮 朱继华 何辉 |
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| 作者单位： | 1. 中国建筑第八工程局有限公司广州分公司,广东 广州,510665
2. 中建钢构有限公司,广东深圳,518040 |
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| 基金项目： | 中国建筑第八工程局有限公司科研项目 |
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| 摘 要： | 东莞篮球中心主体育馆钢结构屋架为车辐式马鞍形空间结构,钢屋架28个带抗剪键箱形支座安装精度高,钢桁架单向斜拉杆张拉难度大,铸钢节点、锻造件节点、复杂三维弯扭制作及现场安装难度大。根据结构特点,重点介绍钢内环临时胎架支撑,地面散件拼装及高空定位总拼的吊装方法;主桁架+GZ2馆外600t履带式起重机一次安装到位;斜拉杆从内往外沿径向分级张拉。另外,指出采用砂漏同步分级思路,循环依次卸载方法。
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| 关 键 词： | 钢结构 屋架 安装 张拉 斜拉杆 砂漏卸载 |
Construction Technology of Large-span Complex Steel Roof in Dongguan Basketball Center |
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| Ji Kangdong , Yang Wenjun , Zhang Liang , Zhu Jihua , He Hui. Construction Technology of Large-span Complex Steel Roof in Dongguan Basketball Center[J]. Construction Technology, 2012, 41(9): 15-19 |
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| Authors: | Ji Kangdong Yang Wenjun Zhang Liang Zhu Jihua He Hui |
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| Affiliation: | 1.Guangzhou Branch of China Construction Eighth Engineering Division Co.,Ltd.,Guangzhou,Guangdong 510665,China; 2.China Construction Steel Structure Co.,Ltd.,Shenzhen,Guangdong 518040,China) |
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| Abstract: | The main stadium of Dongguan Basketball Center has wheel saddle-shape spatial steel roof.The roof has 28 box supports with shear connector which has higher installation precision.In roof’s installation,some installation technologies are difficult such as tensioning of inclined pull-rod of steel truss and prefabrication and on-site installation of some joints and complex bending-torsion members.Based on structure’s characteristics,the authors mainly introduce installation scheme of inner steel ring supported by temporary jigs,members assembled one by one on ground,and total assembled in high-sky,installation method of the main truss and GZ2 column installed in place outside the stadium by 600t crawler crane and tensioning method of the inclined pull-rods by grade from inner to outer.The authors also introduce circle unloading method synchronous with sand-box. |
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| Keywords: | steel structures roofs installations tension inclined pull-rod unloading with sand-box |
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