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Method for determining concrete structural damages by carbon fiber cloth

A technology of concrete structure and carbon fiber cloth, which is applied in the direction of material resistance, can solve problems such as measurement inaccuracy, and achieve the effect of convenient molding, wide application range and various shapes

Active Publication Date: 2019-05-24
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

The disadvantage is that the underwater shock wave is continuous rather than static. This patent requires the use of a non-metallic ultrasonic detector, which may be inaccurate due to the change of water flow in the use environment of wading buildings.

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  • Method for determining concrete structural damages by carbon fiber cloth
  • Method for determining concrete structural damages by carbon fiber cloth

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention Creation and sim...

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Abstract

The invention discloses a method for determining concrete damaged parts and degrees by carbon fiber cloth. By conductivity and piezoresistive effect of carbon fibers, a certain voltage is applied to electrodes at two ends of a carbon fiber strand with a surface insulating coating; after connection with a computer, changing conditions of current in the carbon fiber strand with the surface insulating coating before and after detonation are obtained to create a database. By measurement of current changes of the carbon fiber strand with the surface insulating coating before and after impacts of explosion, collision and the like, impact position and a damage range and degree can be judged intelligently, and intelligent assessment on a health state of a concrete structure is realized.

Description

technical field [0001] The invention relates to the technical field of concrete structure damage testing, in particular to a method for measuring concrete structure damage by using carbon fiber cloth. Background technique [0002] Concrete is widely used as an excellent traditional building material in modern engineering, but for reinforced concrete structures in harsh environments (such as coastal buildings, bridge structures, etc.), the aging and damage of the concrete material itself is prone to occur, and terrorist attacks And accidental explosions have caused huge damage to concrete structures, so various major engineering accidents have occurred at home and abroad, causing huge safety problems and economic losses. There is an urgent need to develop technologies that can monitor and identify the damage and safety of concrete structures. [0003] In recent years, scholars have mainly used modern industrial automation control, communication technology, computer network t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/04
Inventor 卢聆江王高辉谢蓝依袁晶晶高乔裕刘合睿王浩赵烨
Owner WUHAN UNIV
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