The invention discloses a construction method for a cable-beam-free section in a tower area of a superposed beam cable-stayed bridge. The construction method comprises the following steps of: 1, mounting a temporary cantilever hanging bracket; 2, mounting a middle beam section; 3, mounting a side span first beam section; 4, temporarily fixing the side span first beam section; 5, mounting a first main span beam section; 6, temporarily fixing the main span first beam section; 7, dismantling the temporary cantilever hanger and the temporary cable. The mode that a temporary cantilever hanging bracket, a temporary cable and a tower crane on a tower body bearing platform are combined and matched is utilized, no cable beam section exists in the hoisting tower area, a floating crane is not used, and an assembling support is not arranged; therefore, the method does not occupy a main channel, reduces the construction cost, prolongs the construction period and is low in safety risk.

    本发明公开了一种叠合梁斜拉桥塔区无索梁段施工方法,包括步骤:一、临时悬臂吊架的安装;二、中间梁段的安装;三、边跨一号梁段的安装;四、边跨一号梁段的临时固定;五、主跨一号梁段的安装;六、主跨一号梁段的临时固定;七、临时悬臂吊架和临时索的拆除。本发明利用临时悬臂吊架、临时索和塔体承台上的塔吊结合配合的方式吊装塔区无索梁段,不使用浮吊,不下设拼装支架,不占用主航道、减少施工成本、提高工期,安全风险低。


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    Title :

    Construction method for cable-beam-free section of superposed beam cable-stayed bridge tower area


    Additional title:

    一种叠合梁斜拉桥塔区无索梁段施工方法


    Contributors:
    WANG MINZHE (author) / NI YINSHENG (author) / KANG XIAOLONG (author) / DING WENBIN (author) / LI ZHAO (author) / HE SHENGPENG (author) / CHEN NA (author) / QU QINGLONG (author) / ZHAO YONGLI (author) / YANG SHENGXIN (author)

    Publication date :

    2021-11-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    E01D BRIDGES , Brücken / B66C Krane , CRANES



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