Frame truss high-strength spring combined bridge transition section structure separated from abutment

Abstract

The invention discloses a framework, truss and high-strength spring combined bridge-road transition section structure separated from a bridge abutment. The framework, truss and high-strength spring combined bridge-road transition section structure comprises a foundation, the bridge abutment, a beam body, a roadbed body, a pile column behind the abutment, a framework transition section structure, a reinforced concrete truss member and a high-strength spring bundle, wherein the pile column behind the abutment is fixedly arranged behind the bridge abutment; the framework transition section structure comprises a reinforced concrete horizontal plate and a reinforced concrete diagonal bracing plate; the reinforced concrete horizontal plate and the upper end of the pile column behind the abutment are connected by a hinged bolt; the reinforced concrete diagonal bracing plate and the lower end of the pile column behind the abutment are connected by the other hinged bolt; the other end of the reinforced concrete horizontal plate and the other end of the reinforced concrete diagonal bracing plate are connected by another hinged bolt; a cavity is formed by the reinforced concrete horizontal plate, the pile column behind the abutment and the reinforced concrete diagonal bracing plate; the reinforced concrete truss member and the spring bundle are arranged in the cavity; the reinforced concrete diagonal bracing plate is in contact with the roadbed body in an attaching manner. According to the framework, truss and high-strength spring combined bridge-road transition section structure disclosed by the invention, the excessive pressure of a traffic load to the roadbed is avoided, the deformation of the roadbed body is reduced, stable transition of the bridge-road settlement is realized, and the convenience for maintenance and repair is realized.

Description

technical field [0001] The invention relates to the technical field of differential control of subgrade settlement of bridges (or tunnels, culverts) in traffic engineering, in particular to a frame truss high-strength spring combined bridge-road transition section structure that is independent of the abutment, that is, separated from the abutment. Background technique [0002] In the field of traffic engineering, there is a difference in the stiffness of the structure between the subgrades of bridges (or tunnels, culverts), and there will be differences in the settlement of different structures under the action of traffic loads. Whether it is a road or a railway, the problem of the bridge (or tunnel, culvert) subgrade transition section is like a "stubborn disease" that recurs and is difficult to cure completely. The phenomenon of "jumping" has seriously affected the comfort of driving, reduced the speed of vehicles and the traffic capacity of the road, and at the same time,...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a frame truss high-strength spring combined bridge transition section structure separated from the abutment; it can greatly reduce the settlement of the transition section and improve the overall stability of the transition section to solve the existing problems. Technology cannot radically solve the problem of settlement difference in bridge (or tunnel, culvert) road transition zone

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