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A supportless construction method for a ring cable-supported grid structure

A technology of grid structure and construction method, applied in special structures, building components, building structures, etc., can solve problems such as unfavorable stand protection, unfavorable cable installation, and large number of radial cable roots, and achieves favorable stand protection. , The effect of reducing construction risks and saving construction costs

Active Publication Date: 2019-03-15
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are some problems: ①The support measures are expensive; ②The support occupies the space of the ground and the stands in the stadium, which is not conducive to the protection of the stands and the installation of the cables; ③Due to the large number of radial cables, the radial cables are stretched synchronously The amount of required equipment is too much, so it is necessary to cycle and classify and stretch radial cables in batches

Method used

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  • A supportless construction method for a ring cable-supported grid structure
  • A supportless construction method for a ring cable-supported grid structure
  • A supportless construction method for a ring cable-supported grid structure

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Taking the annular cable-bearing grid canopy structure project of a stadium I as an example, the upper grid 5 of the structure is a cross-type, with a total of 36 radial cables 6, and each radial cable 6 has three support rods, which are The inner strut 8, the middle strut 9 and the outer strut 10, wherein the inner strut 8 is directly connected with the hoop cable 7 figure 2 . According to the characteristics of the project and the hoisting capacity, the upper cross grid is divided into unit Ia11, unit Ib12, unit Ic13, unit Id14 and unit Ie15. For the specific hoisting unit division, see image 3 .

[0047] The specific construction steps are as follows:

[0048] Step 1: Install the column 2, the outer ring beam 3 and the outer grid 4; spread the radial cable 6 and the hoop cable 7 on the stand 1 and connect them in a network, see Figure 4 ;

[0049] The second step: lift the cable net by pulling the outer end of the radial cable 6 obliquely by the pulling device...

Embodiment 2

[0059] Take the annular cable-bearing grid canopy structure project of a stadium II as an example. The upper grid 5 of the structure is of a rib ring type, with a total of 72 radial cables 6, and each radial cable 6 has 3 struts, which are the inner strut 8, the middle strut 9 and the outer strut 10, respectively. The inner strut 8 is directly connected with the hoop cable 7 Figure 14 . According to the project characteristics and hoisting capacity, the upper grid 5 is divided into unit IIa16, unit IIb17 and unit IIc18, the same as above. For the specific hoisting unit division, see Figure 15 .

[0060] The specific construction steps are as follows:

[0061] Step 1: Install the column 2 and the outer ring beam 3; spread the radial cable 6 and the ring cable 7 on the stand 1 and connect them in a network, see Figure 16 ;

[0062] The second step: lift the cable net by pulling the outer end of the radial cable 6 obliquely by the pulling device 19, connect the outer end ...

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Abstract

The invention discloses an unsupported construction method of a circular rope-supported grid structure; an upper grid is lifted to a pre-constructed rope network for assembly in unit manner; the circular rope-supported grid structure mainly comprises pillars, outer ring beams, upper grids, radial ropes, circular ropes and support rods. The radial ropes and circular ropes of the structure are elevated by means of oblique traction, tooling counterweight ropes and counterforce frame devices are mounted below a rope network of the structure, the tooling counterweight ropes are tensioned, and a supporting rope network is formed; the upper grid is lifted to the support rope network in unit manner, and the tooling counterweight ropes are adjusted through the counterforce frame devices to control joints to be at design elevation; the tooling counterweight ropes and the counterforce frame devices are finally removed, and the structure is formed. The method has the advantages that construction cost of supports is omitted, elevations of control joints can be adjusted bidirectionally and precisely in real time during construction, tensioning the ropes is not required, a stand can be protected, and green prefabricated construction of a rope-supported grid structure is achieved.

Description

[0001] Field of study [0002] The invention belongs to the technical field of space cable structures, and in particular relates to a supportless construction technology of an annular cable bearing grid structure. Background technique [0003] The annular cable-bearing grid structure of urban stadiums is generally composed of upper grids, struts, lower cable nets, outer ring beams, columns, etc., of which the lower cable nets include radial cables and hoop cables. The outer ring beam is located at the top of the column; the outer end of the upper grid and the outer end of the radial cable are connected with the outer ring beam; the inner end of the radial cable is connected with the ring cable; the upper end of the strut is connected with the upper grid, The lower ends of the struts are connected with radial cables and hoop cables. In the stadium project, the interior of the annular cable-supported grid structure is open. [0004] Now the conventional construction method of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/14E04G21/12E04B1/34
CPCE04B1/34E04G21/121E04G21/14E04G2021/127
Inventor 罗斌朱峰郭正兴娄峰
Owner SOUTHEAST UNIV