The invention discloses a method for installing arch ribs of a large-span river-crossing arch bridge, which comprises the following steps of: prefabricating a plurality of assembly bracket assemblies with different heights according to the design line type of a rigid frame arch bridge; the method comprises the steps that S1, the width of an embedded steel plate is larger than the size of a hinged support, anchoring steel bars are welded to the lower surface of the embedded steel plate, the embedded steel plate is installed when an arch support is poured, the embedded steel plate is installed on the arch support, and the anchoring steel bars are fixed in the arch support through concrete pouring; S2, the multiple arch rib sections are connected into a whole arch rib, and the arch rib sections are continuously built along the projective plane of the arch rib; the installation supports are arranged in rows to be built in sequence, the upper end of each installation support is provided with a support top, each support top is provided with a lifting system, and the lifting systems are used for lifting the arch rib sections. The method has the beneficial effects that rapid construction and installation of the arch rib can be achieved, meanwhile, accurate adjustment of all sections of the arch rib can be achieved through matched use of the hoisting equipment, and the accuracy and rapidness of placing of the arch rib are greatly guaranteed.

    本发明公开了一种大跨径跨江拱桥拱肋安装方法,根据刚构拱桥的设计线型,预制多个高低不同的拼装支架组件,包括以下步骤;S1、预埋钢板的宽度比铰座的尺寸宽,预埋钢板的下表面焊接锚固钢筋,浇筑拱座时安装预埋钢板,使预埋钢板安装于拱座上,锚固钢筋通过混凝土浇筑固定于拱座内,S2、将多段拱肋段连接成整根拱肋,沿着拱肋的投影面连续搭建拱肋段;将安装支架排列成行依次搭建,每个安装支架的上端均设置支架顶,每个支架顶均安装有提升系统,提升系统用于提升拱肋段。有益效果:可以实现拱肋的快速施工安装,同时通过吊装设备的配合使用,可以实现拱肋各个节段的精准调节,极大的保证了拱肋安放的准确性和快捷性。


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    Title :

    Method for installing arch rib of large-span river-crossing arch bridge


    Additional title:

    一种大跨径跨江拱桥拱肋安装方法


    Contributors:
    MENG HUALIANG (author) / SHEN SONGHAI (author) / DING LIBIAO (author) / LUO HONGLEI (author) / NI SHENGJI (author) / LU YANG (author) / GU ZHIHUA (author) / YAN PEIJUN (author) / LUO FUYING (author)

    Publication date :

    2023-10-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    E01D BRIDGES , Brücken / B66C Krane , CRANES



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