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Assembling and splicing installation method of large-span tube-truss roof beam

An installation method and technology of roof beams, applied in the processing of building materials, construction, building construction, etc., can solve the problems of high safety risks and difficult control of the space size of pipe truss roof beams, so as to reduce safety risks and save large machinery Cost, effect of simplifying installation

Inactive Publication Date: 2014-08-20
河北二十冶建设有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This installation method makes it difficult to control the space size of the pipe truss roof beam, and the safety risk during installation is relatively large

Method used

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  • Assembling and splicing installation method of large-span tube-truss roof beam
  • Assembling and splicing installation method of large-span tube-truss roof beam

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Embodiment Construction

[0026] In this embodiment, in the installation site of the pipe truss roof beams, firstly, the long-span pipe truss roof beams to be erected are divided according to the distance between the triangular steel column supports at both ends of the site and the concrete support columns in the middle Two spans of 75 meters are the left span of the roof beam and the right span of the roof beam; corresponding to the width of the concrete support column, the span of the middle span of the roof beam is designed to be 7.5 meters, forming a 75m+7.5m+75m Tube truss roof beams.

[0027] Since the spans of the left and right spans of roof beams are relatively large, in order to facilitate loading and transportation, the left spans of roof beams and the right spans of roof beams can be divided into three subsections (see figure 1 ), and made into sections in the factory. Since the span of the middle span of the roof beam is relatively small, it can be completed through overall fabrication, o...

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Abstract

The invention relates to an assembling and splicing installation method of a large-span tube-truss roof beam. The assembling and splicing installation method comprises the following steps of: dividing a tube-truss roof beam into a roof beam middle span section, a roof beam left span section and a roof beam right span section; dividing the roof beam left span section and the roof beam right span section into a plurality of sub sections, welding respectively, and transporting to an installation field; manufacturing an assembling and splicing jig frame, sequentially arranging each sub section of the roof beam left span sections on the assembling and splicing jig frame, assembling, splicing and welding into the roof beam left span section; manufacturing the roof beam right span section in the same way; and respectively lifting the roof beam left span section and the roof beam right span section in place, welding and fixing, splicing, installing and fixing the roof beam middle span section, respectively abutting the roof beam middle section with the roof beam left span section and the roof beam right span section, leveling by a web member, welding, so as to form an integrative tube-truss roof beam. With the adoption of the assembling and splicing installation method, the geometric dimension of the whole tube-truss construction member is controllable; and due to the assembling and splicing process on the ground, the working efficiency is improved, the cost of large machineries is saved, the safety risk during the lifting process is avoided, in this way, the construction method is especially suitable for the installation of each large-span tube-truss roof beam.

Description

technical field [0001] The invention relates to a method for installing a pipe truss roof beam, in particular to a method for assembling and installing a large-span pipe truss roof beam. Background technique [0002] The tube truss roof beam with an inverted triangular cross-section is an arched three-dimensional truss structure, with two horizontal spans, a span of more than 100 meters, and an installation height of 30 to 40 meters. During installation, the two ends of the roof beam are welded and supported on the steel column bracket with triangular section; the middle span is supported on the top of the concrete support column. Due to the large span, heavy weight and special structural form of the single product of the pipe truss roof beam, it is generally manufactured in sections in the factory, and then transported to the site for assembly at high altitude. This installation method makes it difficult to control the space size of the pipe truss roof beam, and the safety...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/14E04G21/16
Inventor 孙辉姜丹王以珠张宝建
Owner 河北二十冶建设有限公司
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