Replaceable concrete road bed device of steel trussed bridge and construction method

Abstract

The invention relates to a replaceable concrete road bed device of a steel trussed bridge and a construction method. The device comprises a concrete road bed plate, a rail bearing table, a steel sole plate, shear nails and a rubber cushion block, and the device is fixed to the bridge floor through connecting parts. The construction method comprises the steps of: manufacturing a load transfer component and a main bridge at the same time; installing the main bridge; installing a replaceable concrete road bed formed by the steel sole plate, the shear nails and the concrete road bed plate; casting the rail bearing table; and connecting the replaceable concrete road bed with the load transfer component by the connecting parts. By using the replaceable concrete road bed device, in the process of using a bridge, the replaceable concrete road bed of a steel trussed bridge can be completely separated from the main bridge structure. When the bridge floor structure has a problem, the device can be replaced at any time. The use of the replaceable concrete road bed device of a steel trussed bridge can not affect the structures of a girder of the main bridge, and can not affect the maintenance of the main bridge structure. The rubber cushion block ensures that passengers can feel comfortable when a train runs on a bridge, and can decrease noise effect of the train during running on ambient environment.

Description

technical field [0001] The invention relates to a replaceable concrete track bed device and a construction method of a steel truss bridge. Background technique [0002] Now the railway concrete track bed structure of the long-span steel truss bridge on the passenger dedicated line is directly connected to the bridge deck of the main bridge structure. It is difficult to maintain the face system. In addition, the railway concrete ballast bed structure of long-span steel truss bridges often adopts ballast deck, and the dead load of the structure itself is relatively large. In order to improve the deficiencies of the above-mentioned bridge deck form, a replaceable concrete track bed device for a steel bridge is specially invented. Contents of the invention [0003] The purpose of the present invention is to aim at the above-mentioned present situation, aiming to provide a steel structure that does not affect the main bridge structure, can be easily replaced when there is a p...

AI Technical Summary

Problems solved by technology

[0002] Now the railway concrete track bed structure of the long-span steel truss bridge on the passenger dedicated line is directly connected to the bridge deck of the main bridge structure. Face maintenance is difficult

In addition, the railway concrete track bed structure of long-span steel truss bridges often adopts ballast deck, and the dead load of the structure itself is relatively large.

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