Method for constructing steel truss over existing railway line and transporting, mounting and positioning bogie

Abstract

This is an installing method of joists stride-over existing rail and trolley for transportation, installation and orientation. 1. joist installing method: the joist is made into five sections including the main part, joist elbow and joist pillar and transported by crane, trestle and trolley to the position for fabrication. The trolley is in a position parallel to the trestle; two transfer beds move the joist main part via a rail to the trolley which then drives it to the fabrication site. After correcting axes, centerline and level, fabricate the joist elbows to the main part and joist pillar. 2. The trolley is a supporter on the rail with the top jointed through bolts to two vertical stride-over beams whose rail hold two transfer beds. The supporter is closed by armor plate on the side-beam of a platform in between the two vertical beams. A cab and electric control cabinet are installed in the middle to the right side of the supporter, and a ladder is installed to the right side of the supporter. Cable roller is to the right outside of the supporter. Two joist supporters are installed on the transfer beds for fabrication.

Description

technical field [0001] The invention relates to construction facilities of a railway station reconstruction project, in particular to a transport, installation and positioning trolley for steel trusses constructed across existing railway lines (hereinafter referred to as transport, installation and positioning trolley). technical background [0002] At present, in order to meet people's needs, the railway transportation industry has transformed the original railway station in addition to the new railway project, and converted the existing railway station canopy into a column-free canopy on the platform. The existing construction method is: construction It is very unsafe for personnel to use lifting equipment for high-altitude hoisting and installation, especially when assembling above the railway contacting the grid with electric locomotives, malignant accidents are more likely to occur, and the quality of the truss structure is difficult to meet the technical standards. The...

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Problems solved by technology

[0002] At present, in order to meet people's needs, the railway transportation industry has transformed the original railway station in addition to the new railway project, and converted the existing railway station canopy into a column-free canopy on the platform. The existing construction method is: construction It is very unsafe for personnel to use lifting equipment for high-altitude hoisting and installation, especially when assembling above the railway contacting the grid with electric locomotives, malignant accidents are more likely to occur, and the quality of the truss structure is difficult to meet the technical standards. The department declared that the train was out of service, which caused huge losses to the national economy, and the construction period could not be guaranteed

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