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Large-sized overhang steel structure mounting method

An installation method and steel structure technology, which is applied in the direction of building structure, construction, and building material processing, can solve problems that cannot directly meet the structure and complexity, and achieve the effects of reducing high-altitude operations, effectively controlling internal forces, and ensuring safety

Active Publication Date: 2015-07-22
武汉武钢绿色城市技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] None of the above technologies can directly meet the construction needs of large-scale cantilevered steel structures with complex structures and large cantilevered horizontal distances. Therefore, a large-scale cantilevered steel structure that can ensure the safety of the construction process, effectively control the internal force of components, reduce high-altitude operations, and improve construction efficiency is designed. It is very necessary to choose the installation method of steel structure

Method used

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  • Large-sized overhang steel structure mounting method
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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with specific embodiment, but this embodiment should not be construed as limiting the present invention:

[0031] 1. Project overview

[0032] Museum project with a building height of about 43.8 meters and a total construction area of ​​8315.3m 2 , all adopt the form of steel structure, and its cantilevered large-span structure is composed of upper and lower spherical surfaces, and the maximum horizontal distance of the cantilever can reach 22m.

[0033] 2. Installation method

[0034] The installation method of a large-scale cantilevered steel structure in a museum project includes the following steps:

[0035] S1. Set control objectives;

[0036] S11. Set displacement control target:

[0037] Each time a loose part or an integrally assembled truss is hoisted, the lateral movement of the outermost end point shall not exceed 5mm;

[0038] S12. Set internal force control goals:

[0039] ...

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Abstract

The invention relates to a large-sized overhang steel structure mounting method. The method comprises the following steps: setting a displacement control target; setting an internal force control target; establishing a construction model; verifying and determining the construction model; designing a supporting brace; manufacturing the supporting brace; determining a mounting sequence; mounting by applying the manufactured supporting brace according to the determined mounting sequence; effectively fixing a movable end of a member in a mounting process; and unloading the supporting brace. By applying the method, the safety in the construction process can be guaranteed, the internal force of the member is effectively controlled, aloft work is reduced and the construction efficiency is increased.

Description

technical field [0001] The invention relates to a method for installing a steel structure, in particular to a method for installing a large-scale cantilevered steel structure. Background technique [0002] In recent years, the construction technology of large-span space structures has developed rapidly, and many advanced space structure construction technologies have emerged, such as high-altitude bulk technology, strip or block hoisting technology, overall installation construction method and overall lifting method, and slip hoisting technology. [0003] The high-altitude bulk method includes the full support method and the cantilever method. It assembles small units or parts directly at the design position of the structure. The cantilever method hoists the small spliced ​​unit components to the preset position for high-altitude splicing. Construction There is no need for large lifting equipment, but the high-altitude work on site requires a large amount of engineering. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/14
Inventor 黄红刚程胜刘铁稳
Owner 武汉武钢绿色城市技术发展有限公司