Support landing device and method for rapid construction of bridge

Abstract

The invention discloses a support landing device for rapid construction of a bridge, which is mounted on a supporting column and comprises a support, a lifting part and a driving mechanism, the support is fixed to the top end of the supporting column. The lifting piece is slidably arranged on the support. The driving mechanism comprises a mounting seat, a turbine, a worm, a rotating part and a motor; the mounting seat is fixed on the bracket, the worm is rotationally arranged on the mounting seat, the motor is fixed on the mounting seat, and an output shaft of the motor is fixedly connected with the end part of the worm; a rotating shaft is fixedly arranged on the lower surface of the turbine and is rotationally connected with the mounting seat; the rotating part comprises a first lead screw and a rotating rod, the bottom end of the first lead screw is fixedly connected with the top end of the rotating rod, the bottom end of the rotating rod penetrates through the turbine, the rotating rod is fixedly connected with the turbine, and the turbine is meshed with the worm. According to the support landing device, the falling efficiency of workers is improved.

Description

technical field [0001] The present application relates to the field of bridge construction, in particular to a device and method for dropping a frame for rapid bridge construction. Background technique [0002] Bridge construction is the process of building a bridge according to the design content; it mainly refers to bridge construction technology and construction organization, construction management, construction quality, etc. [0003] At present, in bridge construction, the drop-off device of the cast-in-place box girder formwork support mostly adopts the sand box device, that is, the steel cylindrical sand box device is filled with sand, and the sand box device is relied on to provide the bearing capacity for the surrounding of the sand. After the construction is completed, Open the valve on the sand box device, the sand flows out of the pores, the bearing capacity disappears, and the falling frame is completed. [0004] The staff found the following defects in the lon...

AI Technical Summary

Problems solved by technology

[0004] The staff found the following defects in the long-term working process: the sand box device is used, and the sand discharge hole is controlled by bolts. The bolt is unscrewed to unload the sand, and the sand discharge hole is small. Once the sand box enters water, the It is difficult to discharge the viscous sand in the small sand discharge hole smoothly, and sometimes the bolts are rusted and the sand discharge cannot be realized, thus reducing the efficiency of the staff falling off the frame

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