Bridge without expansion joints and its construction method based on the arch structure set behind the abutment

Abstract

The invention relates to a bridge without expansion joints based on an arched structure behind the abutment and a construction method thereof. The bridge without expansion joints includes a bridge span structure and an abutment, and an arched structure is arranged behind the abutment along the direction of the bridge. One end of the arch structure is connected to the end wall of the main girder or the abutment body, and the other end of the arch foot is set on an independent foundation to absorb the displacement transmitted by the bridge span structure through the deformation of the arch structure. The method comprises the following steps: 1. The substructure of the bridge and the arched structure behind the abutment are constructed independently from the bridge end; 2. The upper structure of the bridge is constructed; 3. The arched structure behind the abutment is constructed; 4. The upper waterproof layer of the arched structure is constructed; 5. Soffit filler construction; 6. Bridge deck pavement and road pavement construction behind the abutment. The structure is not only clear in force, simple in structure, but also easy to construct, which can effectively avoid the problem of easily damaged beam end expansion joints being transferred to the pavement structure when the bridge is seamless.

Description

technical field [0001] The invention relates to a bridge structure without expansion joints based on an arched structure arranged behind a platform and a construction method thereof. Background technique [0002] In the traditional bridge structure, in order to meet the requirements of the deformation of the bridge structure, expansion joints must be set between the ends of the two girders, between the end of the girder and the abutment, and a board must be set behind the abutment. However, the bridge expansion joint device and the back plate are often damaged, and vehicles passing through the damaged expansion joint device and the plate will further aggravate the situation, which has become a common problem in the actual operation of bridges at home and abroad. Tricky question. Jumping at the bridge head not only has a great impact on the bridge and the road surface, but also reduces the driving comfort of the driver and passengers. In addition, with the increasing traffi...

AI Technical Summary

Problems solved by technology

[0006] Based on the above problems, the conventional seamless bridge only transfers the fragile problem of the expansion joints of the slotted bridge to the approach part of the bridge head, and does not fundamentally solve the problem of the longitudinal bridge expansion joints of the bridge. The above problems undoubtedly become the needs of the seamless bridge development process. Key Technical Issues Solved

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