Future dismantling considered reinforced concrete structure reinforcement method

A technology of reinforced concrete and steel bars, applied in building construction, building maintenance, columns, etc., to achieve the effects of less environmental interference, lower costs, and controllable processes

Inactive Publication Date: 2014-05-14
YUANYI CONSTR TECH SHANGHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But none of these studies thought that the rust swelling effect of steel bars can be used positively, that is, it can be used to achieve the purpose of demolishing concrete structures

Method used

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  • Future dismantling considered reinforced concrete structure reinforcement method
  • Future dismantling considered reinforced concrete structure reinforcement method
  • Future dismantling considered reinforced concrete structure reinforcement method

Examples

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Effect test

example 1

[0040] 1) Example 1: Demolition of multi-span and multi-storey concrete structures

[0041] A six-storey frame structure residential building, the column network layout is as attached image 3 shown.

[0042] (1) Select the damaged columns: If it is determined that the building may be demolished in the future and the structure needs to collapse southwards according to the surrounding planning and terrain conditions of the residential building, then the seven columns on the south side of the bottom column network are selected as damaged columns. column.

[0043] (2) After the seven columns are bound with steel bars, before pouring concrete, arrange additional longitudinal bars according to the above principles. Figure 4 shown.

[0044] (3) When the building needs to be dismantled, cut off the electrical connectivity between the steel bars in the column and the external steel bars according to the above method, and then start each power supply after forming a circuit with an...

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Abstract

The invention provides a future dismantling considered reinforced concrete structure reinforcement method and belongs to the construction technical field. The future dismantling considered reinforced concrete structure reinforcement method specifically comprises the following steps of selecting a plurality of columns which are arranged in a structure to serve as destroy objects; adding a group of steel bars to the selected columns within the range of core area concrete of the selected columns on the basis of normal reinforcement; cutting off the steel bars which are arranged at the positions of the cross sections of the column top and the column bottom located in every column when a building needs to be dismantled; performing insulation treatment and drilling on cut-off surfaces of the steel bars to form a circuit with external power supplies; winding the columns a circle through an iron chain and connecting with an electric pull rod; starting every direct current power supply to enable the steel bars arranged in the columns to rapidly rust; shutting down every power supply and applying lateral tension to every column to enable every column to be destroyed and the structure to be collapsed towards the preset direction. According to the future dismantling considered reinforced concrete structure reinforcement method, the targeted treatment is performed on the building before the building is built so as to bring a great convenience to the dismantling in the future, the implementation process is convenient and feasible, and the economic value is great.

Description

technical field [0001] The invention relates to a method in the technical field of construction, in particular to a method for reinforcing reinforced concrete structures considering future demolition. Background technique [0002] At present, the rapid advancement of my country's urbanization and the rapid renewal of urban appearance have made the demolition of buildings more and more frequent. The existing demolition technologies for buildings at home and abroad mainly include blasting demolition method, prestressed demolition method, mechanical demolition method, static expansion pressure crushing demolition method, hot-melt cutting demolition method, etc. These methods can all achieve the purpose of demolishing the building, but what utilize all is to add the coercive effect, therefore expend manpower and material resources bigger, and cost is higher. [0003] The prior art literature introduces the significant damage effect of the rust swelling effect of steel bars on c...

Claims

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Application Information

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IPC IPC(8): E04G23/08E04C3/34
Inventor 王艺霖
Owner YUANYI CONSTR TECH SHANGHAI
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