Construction method for three-crane lifting installation used for bow-shaped space truss

A technology of space truss and construction method, which is applied in the processing of building materials, construction, building structure, etc., can solve the problems of difficult to guarantee welding quality, affect the progress of the project, and have high safety risks, and achieve easy implementation of construction methods and improved welding. The effect of quality and force is clear

Active Publication Date: 2015-07-01
浙江中南绿建科技集团有限公司
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AI Technical Summary

Problems solved by technology

Its shortcoming is that the installation of each segment truss needs to be positioned, fixed and corrected separately.
The welding between the split truss and the split truss is at high altitude, the welding volume is large and the welding quality is not easy to guarantee
The construction period is long, affecting the progress of the project
high security risk

Method used

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  • Construction method for three-crane lifting installation used for bow-shaped space truss
  • Construction method for three-crane lifting installation used for bow-shaped space truss
  • Construction method for three-crane lifting installation used for bow-shaped space truss

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Embodiment Construction

[0028] like Figure 1 to Figure 5 As shown, the construction process of a bow-shaped space truss hoisted by three cranes is as follows: simulation to determine the center of gravity of the bow-shaped space truss → setting three lifting points and three cranes → using three cranes to carry out bodiless work → waiting After the bodiless work is completed, carry out the straightening work → hoist the bow-shaped space truss on the platform 11 → fix the bow-shaped space truss on the platform 11 .

[0029] (1) Simulation to determine the center of gravity of the bow-shaped space truss: first establish the space entity model of the bow-shaped space truss, and then determine whether the bow-shaped space truss is in the horizontal, turning, straightening, and hoisting positions according to the shape and size of the bow-shaped space truss Center of gravity position on platform 11. Since the position of the center of gravity of the bow-shaped space truss will continue to change with th...

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Abstract

The invention discloses a construction method for three-crane lifting installation used for a bow-shaped space truss. The construction method includes the following steps of conducting simulation to determine the gravity center of the bow-shaped space truss, arranging three lifting points and three cranes, conducting separation through the three cranes, conducting carrying and correcting work after separation is completed, hoisting the bow-shaped space truss on a platform, and fixing the bow-shaped space truss to the platform. The construction method is simple, easy to achieve, high in installation efficiency, scientific, convenient and capable of saving the labor cost and greatly reducing hoisting expenses. By separating, carrying, correcting and hoisting the whole bow-shaped space truss, sectional butt joint and correction of the truss are reduced, aloft welding does not need to be conducted between sectional trusses, and therefore the installation quality and the welding quality are improved, the truss installation construction period is shortened, and truss hoisting expenses are saved.

Description

technical field [0001] The invention relates to a three-machine hoisting installation and construction method for a bow-shaped space truss. Background technique [0002] A truss is a supporting beam structure that is connected by hinges at both ends of the rods and connected by welding, riveting or bolts. Its advantage is that the rod mainly bears tension or pressure, so that the strength of the material can be fully utilized. When the span is large, it can save material, reduce self-weight and increase rigidity compared with solid web beams. [0003] At present, for the installation of super large bow-shaped space trusses, the whole trusses are assembled on site, divided into 2 to 3 truss sections, and each section truss is removed, straightened, hoisted and installed, and then welded. Its shortcoming is: the installation of each section truss needs to be positioned, fixed and corrected respectively. The welding between the section truss and the section truss is at a high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/14
Inventor 赵懿琼袁国平赵宪文
Owner 浙江中南绿建科技集团有限公司
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