Curve steel box girder incremental launching construction method: Fid-Bau Portal

Curve steel box girder incremental launching construction method

MAO LEI / QIAN SHENCHUN / WU QILIANG / CHENG TAO / ZHANG YUMING / CUI JIAN / WANG SHENGTAO

The invention discloses a curved steel box girder incremental launching construction method, which relates to the technical field of steel box girder construction, and comprises the following steps: step 1, arranging a plurality of jacking brackets, and arranging an incremental launching mechanism at the top of each jacking bracket; and 2, a control mechanism is arranged, the multiple pushing mechanisms are electrically connected with the control mechanism, and the multiple pushing mechanisms are controlled by the control mechanism. The device is novel in design and easy to operate, by arranging the pushing mechanism, the pushing mechanism can drive the steel box girder to move in the designated direction, and in the process that the multiple pushing pieces push the steel box girder, if centrifugal force is generated in the moving process of the steel box girder, and the moving direction deviates, the steel box girder can move in the designated direction. At the moment, the deviation rectifying piece can be used for driving the sliding plate to move on the bearing plate, the sliding plate and the steel box girder are opposite in deviation direction, namely deviation of the steel box girder is offset, the steel box girder can move towards the designated installation position, and the moving direction is accurate.

本发明公开了曲线钢箱梁顶推施工方法，涉及钢箱梁施工技术领域，包括以下步骤：步骤一：设置多个顶托支架，在每个顶托支架的顶部均设置有顶推机构；步骤二：设置控制机构，多个顶推机构均与控制机构电性连接，并且多个顶推机构均受控于控制机构。本发明设计新颖，操作简单，通过顶推机构的设置，利用顶推机构可以驱使钢箱梁朝着指定方向进行移动，在多个顶推件顶推钢箱梁的过程中，若钢箱梁在移动过程中产生离心力，移动方向发生偏移，此时可以利用纠偏件驱动滑移板在承载板上移动，滑移板与钢箱梁发生偏移的反向相反，也即抵消钢箱梁的偏移，钢箱梁可以朝着指定安装位置进行移动，移动方向准确。

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