| 南京大胜关长江大桥8号墩吊索塔架施工 |
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| 引用本文： | 盛智平.南京大胜关长江大桥8号墩吊索塔架施工[J].桥梁建设,2010(2). |
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| 作者姓名： | 盛智平 |
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| 作者单位： | 铁道部工程管理中心,北京,100844 |
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| 摘 要： | 南京大胜关长江大桥8号主墩北侧3主桁钢桁拱采用吊索塔架辅助70 t架梁吊机悬臂拼装,综述该墩处吊索塔架各部分的施工。吊索塔架由塔架与斜拉索2部分组成。塔架采用3片桁架结构,主要由立柱、横向联结系、锚箱3部分组成。塔架施工时,底节采用浮吊安装,标准节段、非标准节段、锚固区节段采用2台塔吊共同安装。塔架每桁设置3层斜拉索,斜拉索施工时,先采用水平转盘放索,再挂设锚固端锚头、张拉端锚头,然后利用650 t穿心式千斤顶+张拉杆张拉索力至设计吨位。在南主跨钢梁合龙过程中,通过调整斜拉索索力控制主跨合龙口纵、横向位移及竖向转角,最终实现精确合龙。
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| 关 键 词： | 桁架拱桥 钢结构 吊索塔架 斜拉索 桥梁施工 |
Construction of Fastening Stay Tower at Pier No.8 of Dashengguan Changjiang River Bridge in Nanjing |
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| SHENG Zhi-ping.Construction of Fastening Stay Tower at Pier No.8 of Dashengguan Changjiang River Bridge in Nanjing[J].Bridge Construction,2010(2). |
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| Authors: | SHENG Zhi-ping |
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| Abstract: | The three main-truss steel truss arch on the north side of Pier No.8 of Dashengguan Changjiang River Bridge in Nanjing was cantileveredly assembled,using the 70-t capacity girder erection crane by the aid of the fastening stay tower.A summarized account of the construction of various parts of the tower is presented herewith.The tower is composed of two parts of the tower and the fastening stays and the tower itself is a structure built with three trusses and mainly having the posts,lateral bracing systems a... |
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| Keywords: | truss arch bridge steel structure fastening stay tower stay cable bridge construction |
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