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Tensioning and anchoring device of prestressed CFRP plate reinforced beam and use method thereof

An anchoring device and a technology for reinforcing beams, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., can solve the problems of lack of integrated tensioning devices, low work efficiency, complicated installation, etc., and achieve anchoring High efficiency, improved work efficiency, and stable quality and performance

Active Publication Date: 2020-10-09
BEIBU GULF UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing tensioning devices are connected by bolts, lacking an integrated tensioning device, and after the prestress is applied, a limiting device is required to limit the retraction of the clip, which has complex structure, complicated installation, and low work efficiency

Method used

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  • Tensioning and anchoring device of prestressed CFRP plate reinforced beam and use method thereof
  • Tensioning and anchoring device of prestressed CFRP plate reinforced beam and use method thereof
  • Tensioning and anchoring device of prestressed CFRP plate reinforced beam and use method thereof

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Embodiment Construction

[0036] 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.

[0037] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] refer to Figure 1-11 , the present invention provides a tension anchoring device for a beam reinforced with a prestressed CFRP plate, which includes a CFRP plate 2 , anchor components and tension component...

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Abstract

The invention discloses a tensioning and anchoring device of a prestressed CFRP plate reinforced beam and a use method thereof. The device comprise a CFRP plate, an anchoring assembly and a tensioningassembly; the tensioning assembly comprises tensioning sliding chambers, a second clamp, a fixed plate and a tensioning mechanism; and the contact surfaces of a telescopic plate and the second clampare provided with sawteeth facing oppositely. According to the device and the method, two groups of clamps fixedly clamped at two ends of the CFRP plate are installed in two groups of sliding chambersto apply the prestress, so that the eccentric tension can be prevented, the self-locking of the CFRP plate after the prestress is applied is realized through the mutual matching of the sawteeth between the telescopic plate and the second clamp, and the retraction of the CFRP plate is limited. The CFRP plate is mechanically clamped through the clamps, the anchoring efficiency is high, the qualityperformance is stable, and the high-strength performance of the CFRP plate can be fully exerted. After the prestress is applied, a jack can be dismantled, the design is integrated, the operation process is simple and convenient, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of beam tensioning and anchoring, in particular to a tensioning and anchoring device for beams reinforced with prestressed CFRP plates and a method for using the same. Background technique [0002] A large number of concrete beams of engineering structures such as industrial and civil buildings, traffic bridges, etc., due to environmental erosion, material aging, and changes in structural functions, the load they can bear changes, and the occurrence of natural disasters and human disasters leads to insufficient bearing capacity or cracks, etc. , there is a very large potential safety hazard, so it is necessary to strengthen and repair it. [0003] CFPR (carbon fiber) plate is a new type of reinforcement material. With the continuous maturity of prestressing technology, the use of prestressed CFRP plate to strengthen the concrete structure in active service has been widely used, which improves the bending and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02G01N3/04G01N3/08
CPCE04G23/0218G01N3/04G01N3/08G01N2203/0017G01N2203/0282G01N2203/0423
Inventor 王树伟毕然周英明李继光孙慧郑秀梅将琼明王建祥
Owner BEIBU GULF UNIV
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