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Large-span net rack jacking construction process

It is a construction technology and large-span technology, which is applied in the fields of construction, building structure, and building materials processing. It can solve the problems that the grid jacking is difficult to take into account the construction period, installation quality, and construction safety, so as to improve the jacking stability and Accuracy, reduction of high-altitude operation time, and high construction efficiency

Inactive Publication Date: 2020-09-29
中能建西北城市建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the problem that it is difficult to take into account the construction period, installation quality and construction safety when lifting the network frame, this application provides a construction technology for the lifting of the large-span network frame

Method used

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  • Large-span net rack jacking construction process
  • Large-span net rack jacking construction process
  • Large-span net rack jacking construction process

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Embodiment Construction

[0043] The following is attached Figure 1-5 The application is described in further detail.

[0044] The embodiment of the application discloses a construction technique for jacking up a large-span network frame. refer to figure 1 with figure 2 , the large-span network frame 1 jacking construction process includes the following steps,

[0045] Calculation of jacking quantity and position, carry out force analysis and calculation on the structure model of grid frame 1, and select the number and position of jacking points. In this embodiment, the number of jacking points is set to 8, and the jacking points are all selected as grids 1 string ball.

[0046] Assembling the grid frame 1, the overall assembly of the grid frame 1 is carried out on the upper surface of the second floor slab 2, the grid frame 1 gradually extends from the middle to the surroundings, and a horizontal support point is set under the grid frame 1, which specifically includes the following steps. Sever...

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Abstract

The invention relates to a large-span net rack jacking construction process. The process comprises the following steps of calculating the jacking number and position; assembling a net rack; mounting ajacking device; reinforcing the floor; jacking the net rack, starting a hydraulic pump to enable a piston rod of a hydraulic oil cylinder to synchronously rise for one stroke, mounting a second standard knot above a first standard knot, enabling a cylinder body of the hydraulic oil cylinder to rise through oil return of the hydraulic pump, and moving a cross beam to the second standard knot to complete one stroke, repeating the net rack jacking step, stopping jacking when the net rack rises to 10-20 cm above the designed elevation; and unloading mounting, enabling the hydraulic oil cylinder to synchronously descend to drive the net rack to fall on a preset mounting base, and completing jacking construction. The process has the effects of shortening the construction period and improving the installation quality and the construction safety.

Description

technical field [0001] The application relates to the field of network frame construction, in particular to a construction technique for jacking up a large-span network frame. Background technique [0002] At present, the construction industry is developing very rapidly, and buildings with large-span spaces have been completed one after another, many of which have become regional landmarks. In terms of long-span space structure, grid frames and grid shells are the most representative. Grid frames are mainly used in large-scale stadiums, large-scale exhibition centers, factories and other buildings. The biggest feature of these buildings is that they have large spans and generally few With or without a support system, this can provide a maximum open space. In the future, the use unit can be divided at any time according to the use requirements, and there are few flexible obstacles to use changes. Among them, the steel structure grid has high strength, light weight, good seism...

Claims

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Application Information

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IPC IPC(8): E04B1/35E04G21/14E04G21/16
CPCE04B1/3511E04B2001/3588E04G21/14E04G21/162E04G21/163
Inventor 冯坤昌赵凤华王云强安龙秦松鹤叶根龙吴新利陈磊东武军古琨
Owner 中能建西北城市建设有限公司
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