Rapid-construction method used for overall installation of large-span steel truss

A technology of overall installation and construction method, applied in the processing of building materials, construction, building structure, etc., can solve the problems of short operation time, high safety risk, long construction period, etc., to achieve shortened construction period, simple construction technology, The effect of improving construction efficiency

Active Publication Date: 2016-05-25
CHINA RAILWAY NO 3 GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional hoisting methods (high-altitude bulk method, aerial splicing method, etc.) all need to set up temporary supports or full-scale scaffolding in the truss span area, and do corresponding foundation treatmen...

Method used

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  • Rapid-construction method used for overall installation of large-span steel truss
  • Rapid-construction method used for overall installation of large-span steel truss
  • Rapid-construction method used for overall installation of large-span steel truss

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Embodiment Construction

[0025] The specific embodiment of the present invention will be further described in conjunction with the accompanying drawings.

[0026] Take the overall installation and construction of a long-span steel truss as an example.

[0027] Specific steps:

[0028] 1), steel truss structure;

[0029] The steel truss structure can be a single-piece steel truss. The main truss 3 adopts a 58.8m single-span steel truss. The rod adopts ∠80×8 angle steel, the web rod adopts [6.3, [8; the steel column 1 adopts φ720×12 steel pipe, and the steel column diagonal brace 2 adopts [22a; the foundation 6 adopts column-type enlarged foundation.

[0030] 2), steel column installation;

[0031] The hoisting of steel column 1 adopts the direct hoisting method. Two steel columns 1 are assembled into a unified whole by using inter-column supports 2, and placed on the ground lying flat; when lifting, the crane hook directly raises the column body so that the column body is in a vertical state, and s...

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Abstract

The invention belongs to the technical field of installing construction of large-span steel tube truss protective sheds in building installation engineering and particularly relates to a rapid-construction method used for overall installation of a large-span steel truss. By the adoption of the method, a temporary support or a full support is prevented from being erected inside an existing line, and basic construction time and key point operation time inside the existing line are shortened. The method includes the detailed construction steps that 1, steel stand columns are installed; 2, the truss is pre-pressed; 3, the truss is spliced on site; 4, a space truss is integrally hoisted; 5, secondary truss bodies between sets are hoisted; 6, other truss bodies are hoisted. The method has the advantages that the construction technology is simple, practical value is high, the using effect is good, technical requirements of related specifications are met, construction quality is guaranteed, construction efficiency is improved, operation time inside the existing line is shortened, interference caused by a traveling crane inside the existing line is reduced, safety risks are reduced, the construction period is shortened, the construction cost is lowered, and good economic benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of installation and construction of large-span steel pipe truss protective sheds in building installation engineering, and in particular relates to a rapid construction method for overall installation of large-span steel trusses. Background technique [0002] In recent years, with the wide application of truss structures, the space structure of long-span steel pipe trusses has become more and more widely used; for the construction of long-span steel trusses, the high-altitude bulk method, aerial splicing method, etc. are usually used in China at present; the high-altitude bulk method needs to be In the installation area, the foundation treatment is carried out first, and the scaffolding is set up, and it needs to be dismantled after the construction is completed. It is mainly suitable for the installation method where the construction site is small or there is no construction site; Carry out corresponding fo...

Claims

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Application Information

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IPC IPC(8): E04G21/14E04B1/342
CPCE04B1/342E04G21/14
Inventor 吕改贤郭星亮张云瑜曹海龙黄亮
Owner CHINA RAILWAY NO 3 GRP CO LTD
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