中文核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2010, Vol. 29 ›› Issue (5): 688-692.

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鄂东大桥施工期结构行为与施工监控关键技术

黄冰释1, 唐守峰1, 赵灿晖2   

  1. 1.鄂东长江公路大桥有限公司, 湖北 黄石 430032; 2.西南交通大学, 四川 成都 610031
  • 收稿日期:2010-04-06 修回日期:2010-06-21 出版日期:2010-10-15 发布日期:2015-01-22
  • 作者简介:黄冰释(1964—),男,湖北公安人,高级工程师,主要从事大跨度桥梁设计和建设管理。E-mail:HBS1268@sina.com。

Structure Behavior and Construction Monitoring Key Technology in Construction of Edong Changjiang River Bridge

HUANG Bing-shisup>1, TANG Shou-fengsup>1, ZHAO Can-huisup>2   

  1. 1.Edong Changjiang River Highway Bridge Co.Ltd, Huangshi 430032, Hubei, China; 2.South est Jiaotong University, Chengdu 610031, Sichuan, China
  • Received:2010-04-06 Revised:2010-06-21 Online:2010-10-15 Published:2015-01-22

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摘要： 鄂东长江大桥为千米级混合梁斜拉桥,通过研究探明了鄂东长江大桥施工期结构行为特点,指出了超大跨度 的混合梁斜拉桥具有非线性特征突出、边中跨的结构行为有一定的独立性等有别于全钢箱梁斜拉桥的特点。从施 工期结构行为入手,就总体控制理念、边中跨控制重点、边中跨线形控制方法、施工期中跨钢箱梁应力调控、边跨应 力控制、拉索张拉控制等关键技术问题进行了深入探讨。施工实践表明:实测结果与理论结果吻合较好,线形情况 与应力情况对应,结构处于可控状态,证实了上述关键技术的有效性。

关键词: 斜拉桥, 施工控制, 线形控制, 应力控制

Abstract: The main bridge of Edong Changjiang River Bridge is a hybrid girder cable-stayed bridge with 1km main span. The structure behavior features of Edong Changjiang River Bridge's construction are in troduced, including obvious non-linearity and independence between mid-span and side span in construction period, which are different from the features of steel box girder cabled bridge. According to structural behavior in construction period, overall control concepts, control key factors, line shape control method, stress control method in mid-span and side span, cable tension control method are discussed. Construction experience indicates that the theoretical calculation is in well accordance with the field results; line shape conditions correspond to the stress conditions and the structure is under control, which proves the availability of those key methods.

Key words: cable=stayed bridge, construction control , line shape control, stress control

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