A construction method for the lower cap structure of a spherical flat hinge of a large swivel bridge

Abstract

The construction method of the lower cap structure of the spherical flat hinge of the large-scale swivel bridge of the present invention belongs to the technical field of bridge swivel construction. When lowering the bearing platform, reserve the reserved slots for the lower flat hinge and the reserved slots for slideways, and then lay steel wire ropes on the top of the lower flat hinge brackets, install the lower flat hinges on the upper surface of the steel wire ropes, and install slideways in the reserved slots for slideways. Then pour concrete in the reserved groove. Finally, the steel wire rope is drawn out to form a grouting channel, and fillers are injected into the grouting channel, so that the filler and the concrete can meet the effective combination of the plane ball hinge and the contact surface, so that the concrete load under the spherical plane hinge is uniform, and the concrete is dense. Spherical plane hinge quality.

Description

technical field [0001] The invention relates to the technical field of bridge swivel construction, in particular to a construction method for a lower cap structure of a spherical flat hinge of a large swivel bridge. Background technique [0002] Swivel construction provides a method that has the least impact on the existing line and can reasonably utilize the surrounding environment to complete the construction for bridges that span lines and do not have traditional construction conditions. The hinge construction is the core part of the swivel construction, and the quality of the hinge construction is related to the success or failure of the bridge swivel construction. [0003] Since the development of the swivel construction method, the tonnage of the swivel is also increasing. In the construction of the flat hinge method, the non-contact surfaces of the upper and lower flat hinges are provided with stiffening ribs to increase the overall rigidity of the spherical flat hin...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method for the lower cap structure of the spherical flat hinge of a large-scale swivel bridge, so as to solve the problem that the concrete under the swivel hinge is prone to air bubbles and cannot be discharged and the concrete shrinks in the traditional swivel lower cap construction method. The concrete is not dense, and it is easy to cause the deformation of the hinge or the deviation of the swivel structure during the swivel process, which may seriously lead to technical problems of swivel failure.

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