Limiting anti-overturning device of bridge aerial work platform supporting system and construction method: Fid-Bau Portal

Limiting anti-overturning device of bridge aerial work platform supporting system and construction method

LI TAO / SONG XINJIE / LI BINBIN / ZHANG LIPO / TANG JUN

The invention discloses a limiting anti-overturning device of a bridge aerial work platform supporting system; the device comprises a cross-core rod horizontally arranged on a bridge pier in a penetrating manner, a jack is vertically arranged on channel steel above the cross-core rod, a platform main beam is arranged above the jack, and the device also includes an anti-overturning box; the anti-overturning box is defined by two half buckles and is locked and fixed to form a rigid box, the main body of the jack is covered in the rigid box, and the top end of the jack penetrates through the anti-overturning box to abut against the bottom of the platform main beam. Meanwhile, the invention further provides an anti-overturning construction method of the bridge aerial work platform supporting system. The anti-overturning box completely wraps the jack to limit the displacement phenomenon of the jack; once the jack fails, the main beam of the platform directly falls above the anti-overturning box, the rigid box plays a role in temporarily supporting the operation platform, escape time is reserved for operators, enough time can be reserved even if the jack fails, so that safe escape of the operators is guaranteed, and the anti-overturning device has the advantages of being convenient to install and safe and reliable to use.

本发明公开了一种桥梁高空作业平台支撑系统限位防倾覆装置，包括水平穿设在桥墩上的穿心棒，千斤顶竖直放置在穿心棒上方的槽钢上，千斤顶上方为平台主梁，还包括防倾覆盒，所述防倾覆盒采用两半扣合围成并锁紧固定成一个刚性盒，将千斤顶的主体罩于其中，千斤顶的顶端穿过防倾覆盒顶紧在平台主梁底部。同时，本发明还提供了一种桥梁高空作业平台支撑系统防倾覆施工方法。防倾覆盒将千斤顶全部包裹，限制千斤顶发生位移现象；一旦千斤顶出现失灵现象，平台主梁直接落于防倾覆盒上方，钢性盒起到临时支撑作业平台的作用，给作业人员留出逃生时间，即使千斤顶发生失灵也能留出足够的时间确保人员安全逃离，具有安装方便，使用安全可靠的特点。

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