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Step-by-step unloading device and construction method of single-point support butt joint of long-span space pipe truss

A single-point support and unloading device technology, which is applied in the on-site preparation of pillars and building components, and the processing of building materials. The effect of control, fast construction progress, high synchronization and stability

Active Publication Date: 2022-03-04
陕西建工第九建设集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional temporary support unloading device generally adopts flame cutting or steel plate graded unloading, which requires regular retesting of the structural support point elevation. If any deviation such as deflection of the support point exceeds a certain value, the elevation needs to be adjusted, while the traditional flame cutting unloading support It is difficult to adjust the elevation of the device during the construction process, and there are many uncertain factors. During the unloading process, flame cutting has high-altitude hot fire operations, low precision and difficult to ensure safe operation, and the construction efficiency is low, which does not meet the requirements of on-site construction. Require

Method used

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  • Step-by-step unloading device and construction method of single-point support butt joint of long-span space pipe truss
  • Step-by-step unloading device and construction method of single-point support butt joint of long-span space pipe truss
  • Step-by-step unloading device and construction method of single-point support butt joint of long-span space pipe truss

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] Example 1: Yulin City Sports Center (Gymnasium) steel structure project

[0092] The project is located in the Southwest New District of Yulin City. The stadium will be the main venue for the 17th Shaanxi Provincial Games in 2022. The construction area of ​​the gymnasium is about 23846.9 ㎡, the projected area of ​​the steel structure canopy is about 11054.4 ㎡, and the structure height is 29.45m. The span of the steel roof is about 70m, and it adopts a space circular tube truss structure. There are 5 trusses in total, arranged in parallel along the span direction, and the distance between each truss is 16.8m. The truss is made of round steel pipes, the joints are intersecting, the cross section is triangular, the width is 8.4m, and the sagittal height is 3~6m. The truss rests on the top of the surrounding concrete columns, supported by the upper chord, and the support adopts the anti-pull basin support. The amount of steel used for the steel structure is about 1,400 to...

Embodiment 2

[0109] Example 2: Yulin City Sports Center (swimming pool) steel structure project

[0110] The project is located in the Southwest New District of Yulin City. The stadium will be the main venue for the 17th Shaanxi Provincial Games in 2022. The construction area of ​​the swimming pool is about 23846.9 ㎡, the projected area of ​​the steel structure canopy is about 11812.5 ㎡, and the structure height is 22.7m. The span of the steel roof is about 60m, and it adopts a space circular tube truss structure. There are 13 trusses in total, arranged in parallel along the span direction, and the distance between each truss is 9m. The truss nodes adopt intersecting connections, the section is triangular, the width is 4.5m, and the truss height is 2.4~3.5m. The south side of the roof is overhanging, with a length of about 12m. The truss rests on the top of the surrounding concrete column, and the lower chord is supported, and the support adopts the basin type support. The amount of ste...

Embodiment 3

[0111] Example 3: Yulin City Sports Center (Stadium) Steel Structure Project

[0112] The project is located in the middle of the Southwest New District of Yulin City, at the junction of Yuyang District and Hengshan District, with four roads: Yuheng 8th Road in the north, Huaiyuan 13th Street in the west, Yuheng 9th Road in the south, and planned land on the east side of the base. The start date is July 15, 2019, and the completion date is May 1, 2020. The steel structure engineering volume of this project is about 7,500 tons, and there are 112 sets of pipe truss blocks. Efficiency, excellent quality, safety and reliability.

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Abstract

The invention discloses a large-span space pipe truss single-point support docking step-by-step unloading device and a construction method. The device includes several sets of supporting mechanisms and unloading mechanisms. The supporting mechanism is installed on a temporary support, and the unloading mechanism is installed above the supporting mechanism. Support the main body of the truss; improve the construction process on the basis of the construction of the traditional unloading support device, according to the site structure of the single-point support point structure of the inverted triangular truss and the component form and size, the factory manufactures, with high accuracy, simple, fast and safe installation Reliable; and in the process of structural unloading, for the efficiency and stability before slipping, the operation is simple, the control is precise, it is convenient for unloading configuration control, structural deformation monitoring and internal force monitoring and analysis, high safety, fast construction progress and high construction accuracy , cost saving, green and environmental protection.

Description

technical field [0001] The invention relates to the technical field of building construction methods, in particular to a single-point support docking step-by-step unloading device for a large-span space pipe truss and a construction method. Background technique [0002] With the rapid development of my country's economy and society, the country pays more and more attention to public infrastructure construction, especially the increasing number of large-scale public cultural and sports buildings. Among them, public projects such as stadiums, airport terminals, passenger stations, and exhibition centers came into being; [0003] The common feature of this type of project is that the roof structure has a high space height, a large span, and the design is mostly sloped or irregular in shape. Most of the roof structure adopts a space tube truss steel structure. It is often necessary to set up temporary temporary brackets, and set truss supports on the top of the temporary bracket...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/14E04G21/16E04G25/00E04G21/18
CPCE04G21/14E04G21/16E04G25/00E04G21/18E04G2025/006
Inventor 吴鹏范蒙飞吴广朝杨奔王雪婷代凯胡耀申少雄康丽曹如慧李晨宁高建国
Owner 陕西建工第九建设集团有限公司