Construction method of hoisting and welding of steel structure canopy arch beam

Abstract

A construction method for hoisting and welding arch beams of a steel structure canopy. It includes installation of lifeline device, setting out wires to measure roof arch beams, binding roof arch beams, measuring the distance between the columns and the roof arch beams on the axial centerline, welding the supporting plates of corbel brackets, and using a crane to make both ends of the roof arch beams fall on the corbel brackets Steps such as welding the arch beam and the column on the pallet, removing the code plate and the pallet, and installing the connecting rods between the two ends of the arch beam and the column. The invention has simple operation process and equipment, and is easy to accurately control the position of the roof arch beam during the construction process. It adopts stable hoisting technology and advanced load-bearing welding technology, avoids the shortcomings of the traditional method, and ensures the roof beam of the steel structure canopy. The stability and accuracy of the welding between the columns are installed, the operation of the construction process is simple and convenient, and the safety of the construction work is enhanced. The construction risk is reduced, the equipment investment is reduced, and the construction efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of railway engineering construction, in particular to a construction method for hoisting and welding arch beams of a steel structure canopy house. Background technique [0002] In recent years, railway stations all over our country often use novel steel structure canopies in the process of new construction and reconstruction. Such canopies have not only greatly improved the function of sheltering wind and rain, but also can more effectively use the platform space. Provide a safe and comfortable travel environment for passengers to get on and off the train. In the past, when the main structure of the steel structure canopy was installed and constructed, the roof arch beam was used as an important structure at the top of the canopy. The usual practice was to use a crane to hang the roof arch beam, and then the surveyor used a total station to measure the roof arch beam. Pre-payment, the ground personnel adjus...

AI Technical Summary

Problems solved by technology

In the past, when the main structure of the steel structure canopy was installed and constructed, the roof arch beam was an important structure on the top of the canopy. Pre-laying, the ground personnel adjust the attitude of the roof arch beam through the cable wind rope and the crane, the surveyors measure the data of the control points multiple times, and then the crane driver and related personnel control the direction and position according to the feedback of the measurement data for positioning Obviously, this positioning method requires a lot of personnel and equipment investment, and the hoisting time is long, time-consuming and labor-intensive, and there is a greater possibility of deviation

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