Swivel bridge with vibration reducing and isolating function and construction method of swivel bridge

Abstract

The invention provides a swivel bridge with a vibration reducing and isolating function. Pile foundations, piers and a bridge body are included. An upper bearing platform and a lower bearing platformare arranged between each pile foundation and the corresponding pier, wherein the center of the upper bearing platform and the center of the lower bearing platform are connected through a spherical hinge, the part between the upper bearing platform and the lower bearing platform is provided with a plurality of vibration reducing structure pieces, the multiple vibration reducing structure pieces are located on the outer side of the spherical hinge and arranged at equal intervals in the circumferential direction of the spherical hinge, a plurality of supporting legs are arranged at the bottom ofthe upper bearing platform in the circumferential direction of the upper bearing platform, and the bottoms of the supporting legs are detachably connected with the lower bearing platform through rubber vibration isolating supports. According to the swivel bridge, traditional sealing compound concrete construction is eliminated, the rubber vibration isolating supports are additionally arranged below traditional swivel bridge supporting legs, equivalently, the vibration isolating layers are formed between the bridge structure and the lower bearing platforms, and when the great earthquake happens, a large amount of earthquake energy can be offset through the rubber vibration isolating supports, meanwhile, the vibration reducing structure pieces are additionally arranged between the upper bearing platforms and the lower bearing platforms, accordingly, a large amount of earthquake energy entering the structure is consumed, accordingly, earthquake response of the whole bridge structure is greatly reduced, and the shock resistance of the structure is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a swivel bridge with shock absorbing and isolation functions and a construction method thereof. Background technique [0002] The bridge structure plays an important role in the development of the national economy, the promotion of cultural exchanges, and the consolidation of national defense; especially in the event of an earthquake, emergency assistance, post-disaster production recovery, and ensuring the smooth flow of life arteries occupy an important position. Therefore, the importance of earthquake resistance of bridge structures Sex is especially important. [0003] With the implementation of the "eight vertical and eight horizontal" road network of my country's high-speed railway, the construction of expressway and municipal engineering road network will inevitably intersect with the railway network. At this time, it is necessary to use bridge engin...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem of poor anti-seismic ability of the structure of the swivel bridge in the prior art and the complicated construction of the shock-absorbing and isolating structure

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