无支架施工技术在双碑大桥引桥的选择与应用

在城市桥梁建设中,对和谐施工、环境保护的要求越来越高。无支架施工技术由于对桥梁下方的绿化、建筑、交通影响非常小,越来越受到建设各方的青睐。重庆双碑嘉陵江大桥西引桥原设计为现浇支架逐联施工箱梁桥,通过施工方案比选、设计变更等工作,重庆双碑大桥西引桥项目选择了无支架施工技术,实现了和谐、环保、安全、优质、价省等多项目标。

The Selection and Application of the Non-bracket Construction Technology in the Approach Bridge of Shuangbei Bridge

In the city bridge construction,harmonious construction,environmental protection have become increasingly demanding.Non-bracket construction,which produces little influence on afforestation,construction and traffic,is therefore favoured by all construction parties.The West Approach Bridge spanning Chongqing’s Shuangbei Jialing River Bridge was an originally designed cast-in-situ bracket continuous box girder bridge.After selecting the construction programs and changing designs,the non-bracket construction technology is applied in Chongqing’s Shuangbei Bridge West Approach projects,which successfully realizes its multiple objectives of being safe,thrift,harmonious,environmental protective,and qualifiable.