Multi-point pushing cumulative-gliding construction method for steel roof truss

A technology of cumulative slippage and construction method, applied in the direction of roof, building components, hydraulic program control, etc., can solve the problem of not being at the same level, etc., to reduce the deflection, ensure the total construction period, and prevent the rails from moving together.

Active Publication Date: 2008-06-18
BEIJING URBAN CONSTR GROUP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a multi-point jacking cumulative slip construction method for steel roof trusses, to solve the problems of large-span two-way fish-belly steel truss structure roof system cumulative synchronous and smooth slip, safe and stable

Method used

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  • Multi-point pushing cumulative-gliding construction method for steel roof truss
  • Multi-point pushing cumulative-gliding construction method for steel roof truss
  • Multi-point pushing cumulative-gliding construction method for steel roof truss

Examples

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Embodiment Construction

[0072] Examples see Picture 1-1 3, this steel roof truss multi-point push cumulative slip construction method:

[0073] First set up a sliding support system with three slideways and six slideways. One end of the main structure is used as the starting position of the sliding. The main structure is a concrete structure or a steel structure. A high-altitude assembly platform 10 is installed at the starting position of the sliding. The assembly platform provides a support system and a working platform for the high-altitude assembly of the truss.

[0074] see figure 2 , 3 Concrete channel beams 3 are respectively erected on the structural columns 2 on the left and right sides of the main structure, side slide rails 1 are laid on the two limb walls of each concrete channel beam, and the connection level between the two limb walls 3.1 of the concrete channel beam Support bar 3.2, cross support bar 3.3. Set up a row of middle slideways temporarily supporting the tire frame 5 pa...

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Abstract

The invention provides a multipoint incremental launching accumulative sliding construction method for steel roof truss. First, a slide support system of three chutes and six rails is set up; a high altitude assembly platform is set up beside the main structure; and a temporary support jig of the middle chute is set up along the midline of the main structure, using the concrete trough beam as the side chute. Then steel truss components are assembled on the ground, and are hoisted to the high altitude assembly platform to assemble a first sliding unit, and then the first sliding unit is connected with a hydraulic synchronous multipoint incremental launching mechanism; the hydraulic synchronous multipoint incremental launching mechanism consists of eight hydraulic crawl devices, three hydraulic pump stations and a synchronous incremental launching control system; after the first sliding unit is pushed, a second sliding unit is assembled and connected with the first sliding unit, and then a second time sliding is performed. Via such an assembly structure, the sliding movement is performed for n times, and then the backout bracket is unloaded, the high altitude assembly platform and the temporary support jig of the middle chute are dismounted. The invention solves the difficulty of safe and stable installation and emplacement in synchronous sliding of the steel roof truss, and at the same time reduces the engineering cost and shortens the construction period without affecting the construction of other structures.

Description

(1) Technical field [0001] The invention relates to a sliding construction method of a large steel structure roof truss system. (2) Background technology [0002] The Wukesong Cultural and Sports Center Gymnasium is the basketball venue for the Beijing 2008 Olympic Games, with a construction area of ​​63,429m 2 , can accommodate 18,000 spectators. The roof truss of Wukesong Gymnasium is a spatial truss system composed of two-way orthogonal fishbelly trusses. The axis dimension of the gymnasium is 120m×120m square, the span of the steel truss is 120m, and the spacing is 12m. There are 26 7 types of steel trusses, the height of the end is 6.3m, and the height of the middle is 6.3m~9.3m, and the lower chords are not at the same elevation; Box-shaped or H-shaped, the maximum plate thickness is 50mm, and the weight of the components is relatively large. The heaviest single-truss truss reaches 165t. Such a steel roof truss with a large span and the bottom chord is not at the s...

Claims

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Application Information

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IPC IPC(8): E04B7/00E04B1/342G05B19/46
Inventor 肖专文王念念储昭武周辉李旻谢会雪
Owner BEIJING URBAN CONSTR GROUP
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