Unsupported construction method of circular rope-supported grid structure

A grid structure and construction method technology, applied in special structures, building components, building structures, etc., can solve the problems of high support measures, unfavorable cable installation, and large number of radial cable roots, so as to reduce construction risks. , Conducive to stand protection and save construction costs

Active Publication Date: 2017-10-13
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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  • Unsupported construction method of circular rope-supported grid structure
  • Unsupported construction method of circular rope-supported grid structure
  • Unsupported construction method of circular rope-supported grid structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Taking the circular cable-supported grid canopy structure project of a certain stadium I as an example, the upper grid (5) of the structure is cross-shaped, and there are 36 radial cables (6) in total, and each radial cable (6) has a The three struts are respectively 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 1 ). According to the characteristics of the project and the hoisting capacity, the upper cross grid is divided into unit Ia (11), unit Ib (12), unit Ic (13), unit Id (14) and unit Ie (15). For specific hoisting unit division, see figure 2 .

[0047] The specific construction steps are as follows:

[0048] Step 1: install the pillars (2), the outer ring beam (3) and the outer grid (4); spread the radial cables (6) and the ring cables (7) on the stand (1) and form a network connection, See image 3 ;

[0049] Step 2: pull the outer end of the radial cabl...

Embodiment 2

[0059] Take the circular cable-supported grid canopy structure project of a stadium II as an example. The upper grid (5) of the structure is rib ring type, with 72 radial cables (6) in total, and each radial cable (6) has 3 struts, which are inner struts (8), middle struts Rod (9) and outer strut (10), wherein the inner strut (8) is directly connected with hoop cable (7) ( Figure 13 ). According to the characteristics of the project and the hoisting capacity, the upper grid (5) is divided into unit Ⅱa (16), unit Ⅱb (17) and unit Ⅱc (18), the same as above, the specific hoisting unit division see Figure 14 .

[0060] The specific construction steps are as follows:

[0061] Step 1: install the pillars (2) and outer ring beams (3); spread the radial cables (6) and ring cables (7) on the stand (1) and connect them in a network, see Figure 15 ;

[0062] Step 2: pull the outer end of the radial cable (6) obliquely through the traction device (19) to lift the cable net, conne...

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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 [0002] The invention belongs to the technical field of space cable structures, and in particular relates to a support-free construction technology of an annular cable-supported grid structure. Background technique [0003] The annular cable-supported grid structure of the city stadium is generally composed of an upper grid, struts, lower cable nets, outer ring beams, columns, etc., wherein the lower cable net includes 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 stadium engineering, the interior of the ring cable-supported grid structure is open. [0004] The conventional construction method of the ring...

Claims

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Application Information

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Patent Type & Authority Applications(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
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