Construction method of high-altitude large-span beam-slab template steel support system

A technology of support system and construction method, applied in the fields of formwork/formwork/work frame, on-site preparation of building components, construction, etc., can solve the problems of easy collapse of super-high steel pipe formwork support system, ensure stability, reduce Set up height and solve the effect of easy collapse

Inactive Publication Date: 2012-07-04
SHANDONG WANXIN CONSTR
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a construction method for the high-altitude and large-span beam-slab formwork steel support system to ensure the stability of the support system and fundamentally solve the problem that the ultra-high steel pipe formwork support system is easy to collapse

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0010] Select the I-beam of model 32b, place the I-beam on the support beam at a distance of 900mm, then spread wooden boards on the I-beam, mark the center line of the I-beam on the wooden board, and press the formwork support system Design the spacing and mark the vertical and horizontal coordinate grid of the vertical pole, lay the compression steel plate with a size of 5×150×150mm, and align the center line of the compressive steel plate with the vertical and horizontal coordinate grid of the vertical pole, then set the vertical and horizontal coordinate grid of the vertical pole, and then pull the wire Set the middle pole, the sweeping pole and the fixed horizontal pole. All the poles are set on the compression steel plate, and the verticality of the pole is ≤L / 500 and ≤30mm.

[0011] The present invention does not need to erect the formwork support system from the bottom layer, reduces the erection height of the formwork support system, ensures the stability of the suppor...

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Abstract

The invention relates to a construction method of a high-altitude large-span beam-slab template steel support system, which is applicable to a super-high beam-slab template support system of which an upper beam slab structural layer and a lower beam slab structural layer have a distance of a plurality of layers. The method is characterized by comprising the following steps: placing joist steel ona support beam; overspreading wood boards on the joist steel; marking central lines of the joist steel on the wood boards; marking vertical and horizontal coordinate grids of upright bars according to the design distance of the template support system; laying compression-resistant steel plates, and aligning central lines of the compression-resistant steel plates with the vertical and horizontal coordinate grids of the upright bars; and arranging a corner upright bar, and then arranging a middle upright bar, a sweeping bar and a fixed horizontal bar by pulling a wire, wherein, all the upright bars are arranged on the compression-resistant steel plate, and the perpendicularity of the upright bars is not more than L / 500 and 30mm. The construction method has the advantages that the template support system does not need to be erected from the lowest layer, thus lowering the erecting height of the template support system, ensuring the stability of the support system, and fundamentally solving the major critical technical difficulty of easy collapse of the super-high upright bar template support system.

Description

technical field [0001] The invention relates to a construction method for a high-altitude and large-span beam-slab formwork steel support system, which is suitable for an ultra-high structural beam-slab formwork support system in which the upper and lower structural beams are several floors apart. Background technique [0002] In order to meet the use requirements of building structures, especially the top beam-slab formwork support system of some high-rise shopping mall stairs and escalators, it is necessary to build the support system from the bottom floor to the top floor, and there are often several floors in the middle. The overall slenderness ratio of the support system is out of balance, and collapse accidents of the support system are very likely to occur. In order to ensure the reliability of the support system, scissor braces in the vertical, horizontal and horizontal directions must be fully installed. The construction operation is extremely inconvenient, and the b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/00E04G11/48E04G13/04
Inventor 宗可锋贾华远李永峰许坤
Owner SHANDONG WANXIN CONSTR
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