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Construction method of temporary support for concrete member dismantling operation

A technology of temporary support and construction method, which is applied in the direction of basic structure engineering, excavation, construction, etc., and can solve the problems of easy falling of broken components, and achieve the effect of accurate and reasonable selection and application, and high construction safety

Pending Publication Date: 2021-10-29
CHINA MCC17 GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method for the temporary support of the demolition of concrete components, so as to solve the problem that the broken components are easy to fall in the existing demolition method

Method used

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  • Construction method of temporary support for concrete member dismantling operation

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Embodiment

[0035] figure 1 Shown is a temporary support structure built in a demolition practice using the above method. In this demolition practice, the determination of the segmented position of the concrete component demolition depends on the material and structure of the concrete component to be demolished, the height of the volley, and the lifting use. Factors such as the load of the crane are planned in advance to ensure that the construction can proceed normally. In this practice, the concrete components are conventional materials, the structure is not complicated, and it is easy to cut into several rectangular blocks. The volley height is about 3 meters. The crane uses a crane with a rated lifting load of 10t , the final demarcated segment is 4 rectangular blocks of equal size; its temporary support structure includes base plate 1, support column 2, positioning rod 3, scissors brace 1, reinforcing rod 5 and scissors brace 2 6, which is different from the above implementation The ...

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Abstract

The invention discloses a construction method of a temporary support for concrete member dismantling operation, and relates to the technical field of building construction. The construction method aims to solve the problem that broken members are prone to falling in an existing dismantling method. The construction method comprises the steps that the dismantling section positions of concrete members are determined, and lines are drawn at planned cutting seams; paying-off positioning is conducted, specifically, a bottom plate is fixedly mounted under the to-be-dismantled concrete members, and temporary supporting structures are erected on the bottom plate and the concrete members; a cutting rope saw system is mounted at the line drawing position of each cutting seam, and cutting is started; after the two ends of any section are cut along the cutting seams, all the gravity of the section falls on the temporary supporting structure at the lower end, and the freely-cut section members are hoisted; and after the concrete members are all dismantled and hoisted, the temporary supporting structures are dismantled. Compared with the prior art, the construction method is more stable, the broken members do not fall, and the construction safety is high.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for temporarily supporting concrete components during dismantling operations. Background technique [0002] Reinforced concrete internal support is widely used as one of the common forms of foundation pit support. After the foundation pit reaches the safe position required by the design, the internal support needs to be removed. Common demolition methods include wire saw cutting, dynamic crushing, static crushing and blasting. However, the reinforced concrete inner support is in a volley state, and the more commonly used methods of stabilizing the reinforced concrete inner support during construction are forklift lifting, etc. However, it is difficult to ensure the stability of the broken components using the existing demolition method, which is easy to fall and dangerous. To ensure the safety of on-site construction, and the removal of broken...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04
CPCE02D17/04E02D2220/00
Inventor 张璋叶美娟
Owner CHINA MCC17 GRP
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