Stable construction method for slipping of large steel latticed shell structure
A construction method and technology of steel reticulated shells, which are applied in building construction, processing of building materials, construction, etc., can solve problems such as increased steel consumption, large deformation, and difficulty in applying prestressing, so as to ensure stability and safety , Ensure that the installation is in place, the method is simple and feasible
Active Publication Date: 2016-12-07
GUANGZHOU CONSTR ENG +2
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Problems solved by technology
Fixing steel rods increases the amount of steel used, and it is impossible to control the pre-stress, and it is impossible to use different pre-stress for different parts of the fixation
[0005] Among them, the steel wire rope is fixed, and the toughness of the steel wire rope is very good, but the deformation is large
As a stabilizing measure, it is difficult to apply prestressing during use, and the steel wire rope itself has to bear huge bending, torsion and extrusion forces, which affects the analysis of force and prestressing, and cannot be well targeted at various parts. Applying prestressing cannot effectively ensure the safety and stability of the structure
Method used
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[0024] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0025] Such as figure 1 Shown is the elevation view of the reticulated shell structure unit 10, and it is precisely such reticulated shell structure units 10 that slide along the track beam (perpendicular to the direction of the paper) and then spliced into a large steel reticulated shell structure as a whole. The reticulated shell structural unit 10 can adopt a separate sliding method, that is, one reticulated shell structural unit directly slides in place at a time; it can also adopt a cumulative sliding method, that is, one reticulated shell structural unit slides a certain distance at a time, and the subsequent reticulated shell structural unit slides a certain distance. The shell structure unit slides forward for a distance to push the previous reticulated shell structure unit forward for a distance, and so on, gradually accumulating, an...
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The invention provides a stable construction method for slipping of a large steel latticed shell structure. The large steel latticed shell structure is composed of a plurality of latticed shell structure units which slip along rail beams and are finally spliced into the whole large steel latticed shell structure. The construction method includes the following steps that (1) acting force on the rail beams when the latticed shell structure units slip to different positions of the rail beams and bottom feet of the latticed shell structure units are not fixed to corresponding stand columns is worked out; (2) steel castings are arranged on the bottom feet on the two sides of each latticed shell structure unit, and steel strand supports are welded to the steel castings; (3) steel strands are mounted on the steel strand supports; (4) stress is applied to the mounted steel strands in advance; and (5) after the latticed shell structure units slip in position and are mounted on the stand columns and connected into a whole with other latticed shell structure units, the steel strands are removed. The construction method is safe and reliable and ensures structure stability.
Description
technical field [0001] The invention belongs to the field of building construction engineering, and relates to a construction method for slipping and stabilizing a large-scale steel reticulated shell structure, in particular to a construction method for stabilizing the sliding of a large-scale steel reticulated shell structure. Background technique [0002] At present, railway station buildings mostly use large-area, long-span and complex continuous steel structure canopies. In the prior art, there are three main methods for fixing large-area, long-span and complex continuous steel structure systems that have eccentricity or do not form a whole: 1. Welding and fixing, 2. Steel rods are fixed, 3. Steel wire ropes are fixed. [0003] Among them, welding fixation is inflexible as a temporary fixation measure when installing large-area, long-span, complex and continuous steel structures. It is necessary to add fixed beams as a support in the sliding direction as a whole, increas...
Claims
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IPC IPC(8): E04G21/00E04B1/342
CPCE04B1/342E04G21/00
Inventor 吴瑞卿吴咏陶黄亮忠
Owner GUANGZHOU CONSTR ENG