Bridge turning construction structure

Abstract

The invention discloses a bridge turning construction structure, comprising a beam body and bridge piers, wherein the beam body is connected with the bridge piers by virtue of a vertical force support and a spherical rotating hinge, the bridge piers are connected by a tie beam, the spherical rotating hinge is arranged at the middle part of the tie beam and is connected with the beam body, the upper end of a sliding box body is fixed at the lower underside of the end part of the beam body, the lower end is contacted with the bridge piers, the top of the bridge piers is also anchored with a counter force frame, one end of a jack is fixed onto the counter force frame, the other end of the jack is connected with one end of a steel cable, the other end of the steel cable is anchored onto a sliding box body, and the middle part of the steel cable is contacted with multiple guiding wheels which are arranged on the outer side wall at the top part along a rotating tangential direction of the beam body; and two auxiliary piers are symmetrically arranged below the beam body vertical to the length direction of the beam body, and each auxiliary pier is provided with the steel cable, the guiding wheels, the counter force frames and the jacks which have the same functions. The bridge turning construction structure disclosed by the invention can guarantee that a railway line passes below the bridge and construction can be smooth under the condition that interruption time is allowed to be short.

Description

technical field [0001] The invention belongs to the technical field of bridges, in particular to a bridge swivel construction structure. Background technique [0002] Due to the particularity of bridge construction, various construction techniques are required in the process of bridge construction, among which bridge swivel construction is an important one. Compared with other construction methods, swivel construction is more difficult to construct, but because it has the least impact on traffic at road intersections, it is often used in bridge construction today. [0003] In order to lower the center of gravity of the overall structure, the piers and girders are usually rotated as a whole, and the common method is the horizontal rotation method. [0004] The rotation system of the horizontal rotation method mainly includes a rotation support system, a rotation traction system and a balance system. The rotating support system is the key equipment for the construction of th...

AI Technical Summary

Problems solved by technology

[0008] However, due to its geographical location and the particularity of its structure, some bridges cannot use the pier bottom rotation scheme. When the railway line passes under the bridge and the interruption time is allowed to be very short, the rotation construction must be adopted.

Each pier is composed of two parts, and the construction scheme of turning the pier bottom cannot be adopted

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