| 西宝客专常兴渭河特大桥节段拼装施工及控制技术 |
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| 引用本文： | 吴浩,苏永会,赵战,郑和晖,郭万中,王敏.西宝客专常兴渭河特大桥节段拼装施工及控制技术[J].中国港湾建设,2012(2):51-54. |
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| 作者姓名： | 吴浩 苏永会 赵战 郑和晖 郭万中 王敏 |
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| 作者单位： | 1. 中交第二航务工程局有限公司,湖北 武汉,430040
2. 中交第二航务工程局有限公司,湖北 武汉 430040;长大桥梁建设施工技术交通行业重点实验室,湖北 武汉 430040 |
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| 摘 要： | 西安至宝鸡客运专线常兴渭河特大桥采用2 000 t下行式架桥机节段拼装48 m简支箱梁施工技术。文中介绍了箱梁节段预制、架桥机整跨拼装等施工工序,重点探讨了梁段精确定位、预应力张拉及梁体脱架、现场监测等关键问题,可为类似工程提供参考。
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| 关 键 词： | 西宝客专 箱梁 架桥机 节段拼装 控制技术 |
Construction and Control Techniques for Segment Precasting and Full-span Erection for Wei River Bridge at Changxing on Xi'an-Baoji Passenger Dedicated Line |
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| WU Hao
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SU Yong-hui
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ZHAO Zhan
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ZHENG He-hui
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GUO Wan-zhong
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WANG Min.Construction and Control Techniques for Segment Precasting and Full-span Erection for Wei River Bridge at Changxing on Xi'an-Baoji Passenger Dedicated Line[J].China Harbour Engineering,2012(2):51-54. |
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| Authors: | WU Hao SU Yong-hui ZHAO Zhan ZHENG He-hui GUO Wan-zhong WANG Min |
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| Institution: | 1,2(1.CCCC Second Harbor Engineering Co.,Ltd.,Wuhan,Hubei 430040,China; 2.Key Lab of Large-span Bridge Construction Technology,Ministry of Communication,Wuhan,Hubei 430040,China) |
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| Abstract: | The construction scheme of segment precasting and full span girder erection by a 2 000 t overhead launching gantry was adopted for the 48 m span simply-supported concrete box girders of the Wei River Bridge at Changxing on Xi′an-Baoji Passenger Dedicated Line.Main construction procedure such as segment precasting and full-span erection is introduced in this paper,also the key techniques in aspect of locating accurately of precast segments,prestressing of strands,removing from launching gantry,monitoring are discussed,which can provide references for similar projects. |
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| Keywords: | Xi′an-Baoji passenger dedicated line box girder overhead launching gantry erection by precasting segment control technique |
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