Installation method of two-story steel structure in large-area enclosed workshops

Abstract

The invention relates to steel structure construction and provides an installation method of a two-story steel structure in large-area enclosed workshops. The method comprises following steps: preparing a one-handed winch lifting truck; the one-handed winch lifting truck comprises a seat with rollers installed at the bottom, a counterweight zone at the rear of the seat, a vertical rod and an electric winch which are installed on the seat and a pulley group which is installed on the top of the vertical rod; a wire rope of the winch is connected to a free end with a fastening member of a hoisting steel structure member through the pulley group on the top of the vertical rod; the free end of the well counterweighted winch lifting truck steel rope is fastened to the steel structure member; theelectric winch which is controlled to operate and lift; a steel column of the steel structure member is positioned and set by the one-handed winch lifting truck; anchor bolts are installed and installation is completed; a steel girder of the steel structure member is installed by two one-handed winch lifting trucks; the girder is positioned and transversely fixed; connecting bolts are installed to complete the installation. The invention does not need to use a large crane or a tower crane, and saves hoisting expenses; the occurrence of site safety accidents is reduced.

Description

technical field [0001] The invention relates to steel structure construction, in particular to a large-area closed factory steel structure construction method. Background technique [0002] A two-story air-conditioning machine room is usually set up on the surface of a large-scale industrial factory building. The air-conditioning machine room has a large span of 20 to 30 meters, and the air-conditioning machine room is basically set in the middle or center of the roof. Large-scale hoisting equipment on the ground cannot reach it at all. However, the load-bearing capacity of the panel of the factory building is low, and it is impossible to install a tower crane or a truck crane on the roof. Due to the large roof area, high height, and the fully enclosed ceiling of the first floor, based on the requirements of span and structural scale, the second-story structural steel girder 1. There are transportation and installation problems in the steel column, and the existing small man...

AI Technical Summary

Problems solved by technology

[0002] A two-story air-conditioning machine room is usually set up on the surface of a large-scale industrial factory building. The air-conditioning machine room has a large span of 20 to 30 meters, and the air-conditioning machine room is basically set in the middle or center of the roof. Large-scale hoisting equipment on the ground cannot reach it at all. However, the load-bearing capacity of the panel of the factory building is low, and it is impossible to install a tower crane or a truck crane on the roof. Due to the large roof area, high height, and the fully enclosed ceiling of the first floor, based on the requirements of span and structural scale, the second-story structural steel girder 1. There are difficulties in transportation and installation of steel columns, and the existing small manual installation trolleys cannot be applied

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