High-altitude long-span roofing pipe truss installation method

Abstract

The invention discloses a high-altitude long-span roofing pipe truss installation method which comprises the following steps: firstly, assembling pipe trusses on the ground, then arranging a construction platform beam at the high-altitude assembling pipe truss; adopting a movable tower crane to hoist the pipe trusses, and hoisting two sections of pipe trusses on an assembling bracket and a reinforced concrete stand column; finally, conducting high-altitude joint, assembly and welding on the pipe trusses; and after passing welding inspection, moving the assembling bracket to the next axis and conducting installation of the next pipe trusses. The high-altitude long-span roofing pipe truss installation method adopts ground segment assembly, movable tower crane hoisting and the high-altitude joint welding method, not only improves construction quality, guarantees construction process and safety, and simultaneously reduces construction cost.

Description

technical field [0001] The invention relates to a roof truss installation method, in particular to a high-altitude long-span roof pipe truss installation method. Background technique [0002] At present, the installation of low-altitude and small-span roof pipe trusses is mostly directly installed by cranes, but for roofs with a span of tens of meters or even hundreds of meters, due to the small turning radius of the crane, the construction period is tight, and the construction site is relatively narrow. The overall assembly site of the truss cannot be completed with a super large crawler crane, so it must be completed with the help of a mobile tower crane. [0003] For the installation of pipe trusses with heavy weight, large cross-section, large span, and a height of up to 100 meters on the roof, and the construction site is narrow, it is difficult and costly to use a large crawler crane in the narrow construction site area. If the high-altitude sliding construction metho...

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Problems solved by technology

[0002] At present, the installation of low-altitude and small-span roof pipe trusses is mostly directly installed by cranes, but for roofs with a span of tens of meters or even hundreds of meters, due to the small turning radius of the crane, the construction period is tight, and the construction site is relatively narrow. The overall assembly site of the truss cannot be completed by using a super-large crawler crane, so it must be completed with the help of a mobile tower crane

[0003] For the installation of pipe trusses with heavy weight, large cross-section, large span, and a height of up to 100 meters on the roof, and the construction site is narrow, it is difficult and costly to use a large crawler crane in the narrow construction site area.

If the high-altitude sliding construction method is used to install the pipe truss, it is necessary to add embedded parts on the two columns, but it is easy to generate additional construction force when sliding, and the frame column of the ear room also needs to add embedded parts, which will also cause additional construction. At the same time, it is very difficult to install and disassemble the supporting truss, the construction period is long, the crane cannot cover it, and the installation of the truss is relatively large

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