Prefabricated bridge structure climbing equipment and control method

Abstract

The invention provides prefabricated bridge structure climbing equipment and a control method, which belong to the technical field of building construction for solving the problem of synchronous pushing of prefabricated box girder units. The equipment comprises a bearing platform, a supporting steel column system, a hydraulic driving system and a pre-supporting adjusting system, wherein the supporting steel column system comprises a supporting steel column and a climbing boot clamping groove; the hydraulic driving system comprises a jacking oil cylinder assembly, a rectangular frame and a supporting rod; the pre-supporting adjusting system comprises a connecting component, a threaded sleeve, a rotating screw and a rotating gear which are sequentially arranged from top to bottom and are inrigid contact; and a pressure sensor is arranged below the rotating gear, and under the driving action of a driving motor, the motor gear drives the rotating gear engaged with the motor gear to rotate, so that the rotating screw is driven to slowly rotate anticlockwise to extend out of the threaded sleeve. The jacking oil cylinder drives the supporting steel column to descend in a large stroke, the motor drives the pre-supporting system to achieve displacement precision adjustment, and finally standardization of the supporting state of the supporting steel column is achieved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a prefabricated bridge structure climbing equipment and a control method. Background technique [0002] The jacking method is a commonly used method in bridge engineering. However, it has high requirements for the jacking technology, which is reflected in the stability of the jacking equipment and the scientific nature of the jacking process. Due to the influence of many factors, the difficulty of bridge construction continues to increase, and steel structure technology and long-span bridge construction projects have gradually become the focus of attention. During the jacking process, it is difficult to achieve synchronization of the jacking speed and displacement of each fulcrum, and the center of gravity of the bridge is out of balance and the structure is forced to deform, which will cause bridge damage. Especially when jacking some long-span steel structure brid...

AI Technical Summary

Problems solved by technology

[0005] In view of the existing bridge jacking technology, it is difficult to realize the goal of one-time jacking of box girder units, and the synchronous control of jacking has always been a difficult problem in bridge construction, and the jacking technology cannot adapt to the problem of viaduct construction; the invention proposes a bridge Structural climbing equipment and control methods solve the problem of synchronous jacking of prefabricated box girder units, and realize the one-time jacking and in-place construction of ultra-high stroke bridges

Images