Large-span pipe truss hoisting method

A hoisting method and pipe truss technology, which is applied in the direction of construction, building structure, and building material processing, can solve problems such as difficult installation of large-span space structures, reduce the amount of assembly work, improve project quality, and save costs for mechanical measures and duration effects

Inactive Publication Date: 2019-01-04
CHINA CONSTR SEVENTH ENG BUREAU THE SECOND CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of difficult installation of

Method used

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0051] refer to Figure 1-28 , a method for hoisting a large-span pipe truss, comprising the following steps:

[0052] Step 1, measurement review: a1. First use the total station to locate the position of the column foot of the steel truss column in the arc section, then use theodolite and steel tape to check the distance between the column foot and the linearity of the two column feet of the same plane truss, and the plane truss itself When hoisting in three sections, the straight line distribution between each section prevents additional stress between the trusses of each section; figure 2 According to the working conditions of the construction site, arrange the ro...

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Abstract

The invention relates to the technical field of floor system and roof system construction of large-span architectural engineering, in particular to a large-span pipe truss hoisting method. The large-span pipe truss hoisting method comprises the following steps that step one, measurement and re-examination are carried out; step two, arc-shaped steel column segment and circumferential truss hoistingis carried out; step three, temporary operation platform installation is carried out; step four, main truss bed-jig assembly is carried out; step five, main truss hoisting is carried out, and specifically, a quincunx integral hoisting method is adopted in super-long plane main truss horizontal segment steel beam hoisting; and step six, end portion arc-shaped segment secondary truss and truss hoisting is carried out. A loading feature of higher rigidity of element itself in a plane is fully used, installation errors and accumulative errors generated during truss segment installation of the large-span prestress tool orthogonal plane pipe truss system can be effectively solved, construction technology of a quincunx integral hoisting super-long tool orthogonal plane pipe truss is adopted, andthe problems that the rigidity is higher but out-of-plane rigidity is relatively weak, and element overall deformation is nonuniform in the hoisting processing of a plane truss are solved.

Description

technical field [0001] The invention relates to the technical field of floor and roof construction of large-span construction projects, in particular to a method for hoisting large-span pipe trusses. Background technique [0002] The large-span spatial structure is the fastest-growing structure type at present, and the types and forms of the large-span spatial structure are very rich. As the span increases, the interface size of steel structural members increases. The large-span prestressed orthogonal planar pipe truss structure system optimizes the structural system, gives full play to the strength of steel, reduces the amount of steel used in the structure, and has obvious economic and social benefits. During the hoisting construction of super-long plane trusses, the stiffness of the truss in the plane is relatively large, but the stiffness outside the plane is very weak, and the longer the plane truss, the greater the uneven deformation of the components during the hoist...

Claims

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Application Information

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IPC IPC(8): E04G21/14
CPCE04G21/14
Inventor 管珞周文斌
Owner CHINA CONSTR SEVENTH ENG BUREAU THE SECOND CO LTD
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