The invention relates to a construction method for mounting a steel truss continuous beam bridge by using a large-section floating method, which comprises the following steps of: erecting a steel beam assembly bracket on at least three barges which are arranged in parallel, assembling a large-section steel truss beam on the bracket, driving away the middle barge after the assembly is completed, floating the large-section steel beam above a main-span pier by using the two barges, and mounting the large-section steel truss beam on the main-span pier by using the large-section floating method. Ballast water is injected into the two barges to reduce the heights of the barges, the large-section steel beams are installed on main span piers, side span tail beam sections are installed while main span steel beams are installed, finally, side spans and main span closure sections are sequentially installed through a lifting method, and full-bridge closure is completed. The barge is adopted to float the steel beams for installation, a support does not need to be erected in water, and river navigation is not affected; the large-section steel truss girder cross-pier integral installation can be realized, and the construction efficiency is high; the barge water injection ballast or the ebb tide is adopted for beam falling, operation is easy, safety is high, and cost is low.

    本发明涉及一种用大节段浮托法安装钢桁连续梁桥的施工方法,在并列设置的至少3艘驳船上搭设钢梁拼装支架,在支架上拼装大节段钢桁梁,拼装完成后中间驳船驶离,由两艘驳船浮托大节段钢梁到主跨桥墩上方,通过向两艘驳船内注入压舱水使驳船高度降低,将大节段钢梁安装到主跨墩上,主跨钢梁安装的同时进行边跨尾梁段安装,最后采用提升法依次安装边跨及主跨合龙段,完成全桥合拢。本发明采用驳船浮托钢梁安装,不用在水中搭设支架,不影响河道通航;可实现大节段钢桁梁跨墩整体安装,施工效率高;采用驳船注水压舱或利用落潮进行落梁,操作简单,安全性高,成本低。


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    Titel :

    Construction method for installing steel truss continuous girder bridge by using large-section floating support method


    Weitere Titelangaben:

    一种用大节段浮托法安装钢桁连续梁桥的施工方法


    Beteiligte:
    LU GUANNAN (Autor:in) / GAN SHUKUAN (Autor:in) / LI YOUQING (Autor:in) / WU JIAN (Autor:in) / LU CHUNGEN (Autor:in) / LIU YONGHENG (Autor:in) / ZHANG HUAWU (Autor:in) / MA SHUIYING (Autor:in) / WANG CHUNJIAN (Autor:in) / WEI TUO (Autor:in)

    Erscheinungsdatum :

    2024-05-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    E01D BRIDGES , Brücken / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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