Apparatus and method for reinforcing column by prestressed fiber sheet

A fiber sheet and prestressing technology, which is applied in building maintenance, construction, building construction, etc., can solve the problems that there are no prestressed fiberboard reinforcement columns, and the large-scale promotion of projects cannot be implemented, so as to facilitate popularization and use and improve strength Utilization, the effect of controlling the development of cracks

Active Publication Date: 2016-09-14
SOUTHEAST UNIV +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no device and method for reinforcing columns with prestressed fiber sheets that can be used in actual engineering. Only a small amount of devices for reinforcing columns with prestressed fiber sheets have been seen, but they are limited to indoor applications in laboratories and cannot be widely used in engineering. ; And for the thicker prestressed fiberboard, it is only used to strengthen the beam plate at present, and there is no device and method for reinforcing the column with the prestressed fiberboard

Method used

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  • Apparatus and method for reinforcing column by prestressed fiber sheet
  • Apparatus and method for reinforcing column by prestressed fiber sheet
  • Apparatus and method for reinforcing column by prestressed fiber sheet

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] like figure 1 , figure 2 , image 3 As shown, a device for reinforcing a column with a prestressed fiber sheet of the present invention includes a fixed-end anchor 1 anchored on a concrete column 11, a tension-end anchor 10, and a fixed-end anchor 1 and a tension-end anchor. A convex hydraulic jack 3 connected with a tool 10; also includes a two-part clamp 4, a cylinder 6 with a column cap 5 is welded to the upper surface of the clamp 4, and the sleeve 7 nested outside the cylinder 6 is pressed The rod 8 is connected to the convex hydraulic jack 3; one end of the fiber sheet 9 is clamped by the clip-type clamp 4 at the tension end, and the other end is anchored to the fixed end anchor 1, the fixed end anchor 1, and the tension end anchor 10 It is composed of an anchor cup and a clip, and there are two sets of threaded holes on the anchor cup, one set of hole...

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Abstract

The present invention discloses an apparatus for reinforcing a column by a prestressed fiber sheet. The apparatus comprises a fixing end anchor and a tensioning end anchor which are anchored to a concrete column, and a convex type hydraulic jack connected with the fixing end anchor and the tensioning end anchor. The apparatus also comprises a dimidiate clamping piece type fixture, a cylinder with a column cap is welded to an upper surface of the clamping piece type fixture, and a sleeve sleeving the cylinder is connected to the convex type hydraulic jack through a jacking rod. One end of the fiber sheet is clamped by the clamping piece type fixture at a tensioning end, and the other end of the fiber sheet is anchored to the fixing end anchor. Prestress can be effectively applied to the externally wrapped fiber sheet for reinforcing the column, the thinner fiber sheet such as fiber cloth and the thicker fiber sheet such as a fiber board can be effectively clamped, higher prestress can be maintained, steel amount is reduced, reinforcing cost is saved, and construction is rapid and convenient, thereby facilitating promotion and application for engineering reinforcement.

Description

technical field [0001] The invention relates to the technical field of civil engineering and transportation, in particular to a device and method for reinforcing columns with prestressed fiber sheets. Background technique [0002] Due to the influence of material aging, construction quality, natural or man-made factors, many existing reinforced concrete projects urgently need to be repaired and reinforced, and countries all over the world spend huge sums of money on this every year. The fiber sheet is lightweight, high-strength, and corrosion-resistant. Pasting the fiber sheet on the surface of the component and pulling it can enhance and improve the mechanical performance of the component. However, only fiber sheet outsourcing reinforcement technology is used for reinforced concrete columns, which is a passive reinforcement technology, which has the disadvantages of stress lag, no improvement in performance during use, and limited increase in bearing capacity. It is an eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02
CPCE04G23/0218E04G2023/0262
Inventor 吴刚李兴华蒋剑彪李东平陆绍辉
Owner SOUTHEAST UNIV
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