Method for crushing and separating section steel concrete structural components

A technology of concrete structure and separation method, which is applied in building construction, building maintenance, construction, etc., can solve the problem of inability to effectively break apart steel-concrete structural components, and achieve the effect of less dust pollution

Active Publication Date: 2019-07-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing demolition methods cannot effectively break and separate the steel concrete structural members, and provide a crushing and separation method for the steel concrete structural members

Method used

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  • Method for crushing and separating section steel concrete structural components
  • Method for crushing and separating section steel concrete structural components
  • Method for crushing and separating section steel concrete structural components

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0033] Specific implementation mode one: the method for crushing and separating the steel concrete structural members of this implementation mode is specifically carried out according to the following steps:

[0034] 1. Determine the type and conditions of use of the static breaking agent according to the reinforcement of the steel concrete structural members to be removed and the position of the steel, and determine the static crushing hole diameter, hole spacing and hole depth in combination with the reinforcement of the component to ensure that the hole spacing and the stirrup There is a multiple relationship between the spacing to ensure that the steel bars are avoided when drilling;

[0035] 2. Determine the location of the static crushing and demolition drilling hole and perform oblique drilling on the outside of the steel flange to form the first tunnel; the first tunnel is parallel to the steel flange and tangent to the outer edge of the adjacent steel flange, and the w...

specific Embodiment approach 2

[0044] Specific embodiment two: the difference between this embodiment and specific embodiment one is that: the inclination angle of the inclined borehole described in step two is 5° to 15°; the inclination angle of the inclined borehole described in step five is 5° to 15° . Others are the same as the first embodiment.

specific Embodiment approach 3

[0045] Specific Embodiment 3: This embodiment differs from Specific Embodiment 1 or 2 in that: the drill holes are drilled. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to the technical field of civil engineering construction, in particular to a method for crushing and separating section steel concrete structural components. The method is used for solving the problems that through an existing demounting method, the section steel concrete structural components cannot be effectively crushed and separated. The method comprises the steps that astatic crushing technology is utilized, section steel periphery concrete is crushed and separated through the proper design, and thus a section steel flange is exposed; then the section steel flange is separated further through mechanical demounting and cutting, and the constraint of section steel on clamping area concrete is relieved; and finally, the clamping area concrete is separated and crushed through static crushing. According to the method, the clamping area concrete of the section steel can be demounted, noise and dust pollution generated in the demounting process are less, the mechanical properties and geometric size of longitudinal bars are almost not affected in the demounting process, and the longitudinal bars can be reutilized.

Description

technical field [0001] The invention relates to the technical field of civil engineering construction, in particular to a crushing and separating method for steel concrete structural components. Background technique [0002] The steel concrete structure refers to the structure in which the steel is configured in the concrete and equipped with certain transverse stirrups and longitudinal reinforcement. application. At present, the main demolition methods used in construction projects include blasting demolition, mechanical demolition, manual demolition and static crushing demolition. Due to the strong restraint of the steel in the steel-concrete structural members on the concrete in the clamping area, it is difficult to achieve effective crushing and separation of the concrete in the clamping area of ​​the steel by ordinary demolition methods; The longitudinal reinforcement is deformed, and the steel needs to be re-forged before it can be used. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/08
CPCE04G23/08
Inventor 许崇浩郑子玥郑文忠王英
Owner HARBIN INST OF TECH
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