Carbon fiber sheet prestressed tensioning device and tensioning method

Abstract

The purpose of the present invention is to provide a carbon fiber sheet prestressed tensioning device and a tensioning method, which is used to solve the problem that the existing prestressed tensioning device needs to remove a large area and depth of the original concrete structure, causing damage to the concrete structure. damage; and the jack needs to sink into the concrete structure to destroy the concrete structure, and the position of the jack is also affected by the end size of the beam structure; during the tensioning process, the carbon fiber sheet is eccentrically pulled, resulting in the tension value not being able to The problem of reaching the design tensile strength value of the carbon fiber sheet. The carbon fiber sheet prestressed tensioning device includes: a fixed end fixing device; a fixed end anchor; a tensioning end fixing device; a tensioning end anchor; and a tensioning device. A carbon fiber sheet prestressed tensioning device provided in an embodiment of the present invention can be applied to the field of building structure reinforcement equipment.

Description

technical field [0001] The invention relates to the field of building structure reinforcement equipment, in particular to a carbon fiber sheet prestressed tensioning device and a tensioning method. Background technique [0002] The existing carbon fiber sheet prestressed tensioning devices all use steel connecting rods to push or pull the tensioning anchorage of the carbon fiber sheet, which mainly has the following defects: (1) large area and depth of the original concrete structure Chiseling, destroying the concrete structure; (2) the position of the jack is also affected by the end size of the beam structure; (3) the jack needs to sink into the concrete structure to destroy the concrete structure. [0003] Moreover, in the process of stretching the carbon fiber sheet, it is easy to produce eccentric tension on the carbon fiber sheet due to design defects and installation errors. Therefore, the tension value of the existing carbon fiber sheet prestressed tensioning device ...

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Problems solved by technology

[0004] One of the purposes of the present invention is to provide a carbon fiber sheet prestressed tensioning device to solve the need for the existing prestressed tensioning device to chisel out the original concrete structure with a large area and depth, causing damage to the concrete structure; Moreover, the jack needs to sink into the concrete structure to destroy the concrete structure. The position of the jack is also affected by the end size of the beam structure; during the tensioning process, the carbon fiber sheet is eccentrically pulled, resulting in a tension value that cannot reach the carbon fiber sheet. The problem of material design tensile strength value

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