Reinforcing structure of railway turnout zone and frame bridge structure passing through existing railway underneath

Abstract

The embodiment of the invention provides a reinforcing structure of a railway turnout zone and a frame bridge structure penetrating through an existing railway. The reinforcing structure of the railway turnout zone is used for underneath passing through a frame bridge of an existing railway, and the reinforcing structure comprises a plurality of pile foundations, a plurality of cross beams, a plurality of longitudinal beams and overhead supporting beams. The multiple pile foundations are sequentially arranged along the two sides of the railway. The multiple cross beams extend along the crossing railway and are used for bearing the rail bottom or the sleeper bottom of an existing sleeper. The two ends of each cross beam are supported on a guard pile foundation, and the cross beams are disconnected at the area where a pull rod of a railroad switch is arranged. The longitudinal beams extend in the railway direction, are arranged above the cross beams and are connected with the cross beams, and the longitudinal beams are disconnected in the switch area. The overhead supporting beams extend in the railway direction and are arranged below the railroad switch at intervals, and the two ends of each overhead supporting beam are connected with the cross beams on the two sides of the railroad switch respectively. By the adoption of the scheme, the strength and rigidity of the turnout zone in construction of the frame bridge can be guaranteed, and driving safety is guaranteed.

Description

technical field [0001] The application relates to the construction technology of a frame bridge, in particular, to a reinforcement structure of a railway turnout area and a frame bridge structure passing under an existing railway. Background technique [0002] In recent years, with the continuous development of my country's railway and highway traffic, the reconstruction of railways and highways often requires reconstruction, expansion or addition of crossing frames. The common point of these constructions is that they need to be carried out under the premise of uninterrupted railway traffic. In the situation of increasing railway traffic density and continuous speed-up reconstruction, the contradiction between existing line construction and traffic safety has become increasingly obvious. How to successfully complete the construction of the existing railway under the overpass frame bridge under the condition of railway operation is very important. Therefore, the jacking met...

AI Technical Summary

Problems solved by technology

When long-span frame bridges cross such complex lines, how to ensure the integrity of the line reinforcement system, how to ensure the stability of the turnout, how to implement the complex reinforcement system, and how to ensure the safety of traffic and lines are very difficult. The original construction technology Can no longer meet the construction under such conditions

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