The invention provides a construction method for urban viaduct ramp transformation, and relates to the technical field of viaduct ramp transformation. The construction method for urban viaduct ramp transformation comprises the following specific steps that S1, firstly, a worker installs fixing bottom feet on the front side and the rear side of a ramp box girder, after the fixing bottom feet are installed, a hoisting frame is fixed above the fixing bottom feet, and after the hoisting frame is installed, a crane is fixed to the top of the hoisting frame; and finally, the lifting hook is mounted on a crane. And S2, two mounting holes are chiseled in each of the left side and the right side of the bottom of the ramp box girder, positioning blocking pieces are mounted in the mounting holes, and the stability of the positioning blocking pieces is tested after the positioning blocking pieces are mounted. The mounting hole is formed in the bottom of the ramp box girder, and then the positioning blocking piece is arranged in the mounting hole, so that a steel wire rope for hoisting is conveniently positioned, the problem that the ramp box girder is easy to slide in the hoisting process is effectively solved, and the safety of ramp transformation is improved.

    本发明提供一种城市高架匝道改造的施工方法,涉及高架匝道改造技术领域。该城市高架匝道改造的施工方法,包括以下具体步骤:S1、首先工作人员在匝道箱梁的前后两侧安装固定底脚,当固定底脚安装完成后,在固定底脚的上方固定起重架,当起重架安装完成后,将起重机固定在起重架的顶部,最后将起吊钩安装在起重机上;S2、之后在匝道箱梁的底部左右两侧均凿除两个安装孔,之后在安装孔内安装定位阻挡件,定位阻挡件安装完成后对定位阻挡件的稳定性进行测试。通过在匝道箱梁的底部开设安装孔,之后在安装孔的内部设置定位阻挡件,便于对起吊用的钢丝绳进行定位,有效解决匝道箱梁在起吊过程中容易发生滑动的问题,提高匝道改造的安全性。


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    Title :

    Construction method for urban elevated ramp transformation


    Additional title:

    一种城市高架匝道改造的施工方法


    Contributors:
    CHEN JUN (author) / LIU WEI (author) / FAN ZIYI (author) / TIAN QILING (author) / CHEN CHAO (author) / YANG YU (author)

    Publication date :

    2024-02-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    E01D BRIDGES , Brücken / B66C Krane , CRANES



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