Beam lateral deviation pier stress self-balancing correcting device and correcting method

Abstract

The invention discloses a beam lateral deviation pier stress self-balancing correcting device which comprises a pushing and moving system. The pushing and moving system is mounted on a beam and a capping beam, the capping beam supports the beam, the pushing and moving system comprises a translation jack, a digging line and an anchoring end, the translation jack is a centre hole jack and mounted onthe deviation side of the beam, one end of the digging line is connected with the translation jack, and the other end of the digging line is anchored on the non-deviation side of the capping beam through the anchoring end. The correcting device has the advantages of low cost, reasonable lateral pier stress, high correcting stroke and the like. The invention further discloses a method for correcting a deviation by the correcting device. The correcting method has the advantages that operating processes are simple, and labor and time are saved.

Description

technical field [0001] The invention belongs to the field of bridge maintenance and reinforcement, and in particular relates to a force self-balancing deviation correction device and a deviation correction method for bridge pier laterally displaced beam bodies. Background technique [0002] According to the structural form, bridges can be divided into five basic systems: girder bridge, rigid frame bridge, arch bridge, cable-stayed bridge and suspension bridge. Among them, the girder bridge is widely used in urban bridges and highway bridges because of its low cost, short construction period, good integrity, reasonable force, and large spanning capacity. [0003] For beam bridges, the beam body, as an important part of the bridge structure, is the main load-bearing member on the upper part of the bridge, providing passages for vehicles to travel safely and comfortably. During the construction and operation of the beam body, due to factors such as the external environment, na...

AI Technical Summary

Problems solved by technology

The above-mentioned traditional deviation correction and reset method has the following three problems: (1) a temporary support needs to be erected on the side of the bridge pier, which is time-consuming and labor-intensive; (2) the temporary support often requires an additional support foundation, and when the bridge pier is high The reaction force of the jacking girder needs to be firm and reliable; (3) There are two independent structures between the temporary support and the pier, and the jacking force will be transmitted to the lower pier, which may cause the pier to crack, which is not conducive to the pier force, bringing new diseases

[0005] In addition, the Chinese patent document with the document number CN205188840U discloses a bridge lateral jacking correction device, which uses a horizontal jacking jack as the horizontal jacking device. When the lateral deviation of the beam is large, the lateral deviation exceeds the horizontal jack Rated stroke, in the actual operation process, it is necessary to continuously add steel pads between the beam body and the transverse jack. Improper operation may cause the beam body to return elastically (return to the original position before the beam body is corrected)

In addition, this correction device requires steel hoops to be installed on the pier columns. Therefore, this method of laterally pushing and correcting deflection has certain limitations, and cannot be used for large lateral deflection caused by factors such as natural disasters, beyond which Therefore, it is necessary to improve the existing deviation correction device to expand its application range

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