| 重庆朝天门长江大桥钢拱肋制造精度控制 |
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| 引用本文： | 黄鑫,钱叶祥.重庆朝天门长江大桥钢拱肋制造精度控制[J].钢结构,2009,24(9):60-62,50. |
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| 作者姓名： | 黄鑫 钱叶祥 |
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| 作者单位： | 中铁宝桥集团有限公司,陕西宝鸡,721006 |
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| 摘 要： | 重庆朝天门长江大桥主桥为3跨连续钢桁系杆拱桥，节点为高强度螺栓连接，连接关系复杂，螺栓孔连接精度要求高。通过对主桁杆件、节点板等关键构件的制造精度控制，在试拼装过程中对累积误差进行精度管理，确保了拱肋精确安装合龙及拱肋线形。
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| 关 键 词： | 拱肋 钢梁制造 精度控制 |
MANUFACTURAL PRECISION CONTROL OF CHONGQING CHAOTIANMEN YANGTSE RIVER STEEL ARCH BRIDGE |
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| HuangXin Qian Yexiang.MANUFACTURAL PRECISION CONTROL OF CHONGQING CHAOTIANMEN YANGTSE RIVER STEEL ARCH BRIDGE[J].Steel Construction,2009,24(9):60-62,50. |
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| Authors: | HuangXin Qian Yexiang |
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| Affiliation: | HuangXin Qian Yexiang (China Railway Baoji Bridge Group Co. Ltd,Baoji 721006,China) |
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| Abstract: | The main bridge Chongqing Chaotianmen Yangtse River steel arch bridge is a type of tie bar-arch steel truss bridge, formed by 3 continuous spans. To link all nodes with HS bolts, it’s very difficulty between tow beams. All holes of HS bolts will be bore truly to ensure the exactness position. By controling manufactural precision of key members such as main truss rod,node plate etc,managing the precision of cumulative error during trial assembling,installation fold and shape of the arch are ensured. |
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| Keywords: | arch manufacture of steel girder precision control |
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