Surface embedded bar reinforced prestress tension method and device

A tensioning device and prestressing technology, which is applied in bridge reinforcement, building material processing, erection/assembly of bridges, etc., can solve the problems that embedded reinforcement bars cannot pass through, and cannot provide tensioning device installation and operation space, etc. Achieve the effect of simple structure, simple structure and easy realization

Inactive Publication Date: 2015-01-07
HUAQIAO UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are bridge piers or frame columns at the end of the actual reinforced girder span, and the embedded reinforcement cannot pass through, nor can it provide the installation and operation space of the tensioning device

Method used

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  • Surface embedded bar reinforced prestress tension method and device
  • Surface embedded bar reinforced prestress tension method and device
  • Surface embedded bar reinforced prestress tension method and device

Examples

Experimental program
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Embodiment Construction

[0032] Please refer to figure 1 and figure 2 , a prestressed tensioning device for reinforcement of surface reinforcement of the present invention, comprising: two sleeve steel plate anchors 10, a fixed tensioning base 20, a mobile tensioning base 30, an expansion device 40, a positioning screw 50, a force sensor 60. Two sleeve steel plate anchors 10 are respectively connected to the two ends of the reinforcing bar 70; the fixed tensioning base 20 and the mobile tensioning base 30 are arranged between the two sleeve steel plate anchors 10; the positioning screw 50 is connected to the fixed tensioning Between the pedestal 20 and the mobile tensioning pedestal 30 ; the expansion device 40 is arranged on the positioning screw 50 and connected between the fixed tensioning pedestal 20 and the mobile tensioning pedestal 30 ; the force sensor 60 is arranged on the positioning screw 50 .

[0033] The sleeve steel plate anchor 10 includes a steel plate 12 and a steel sleeve 14 . Th...

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PUM

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Abstract

The invention discloses a surface embedded bar reinforced prestress tension method and device. The device comprises two sleeve steel plate anchorage devices connected to the two ends of a reinforcing rib respectively, a fixed tension table seat, a movable tension table seat and an expanding device; the fixed tension table seat and the movable tension table seat are arranged between the two sleeve steel plate anchorage devices; the expanding device is connected between the fixed tension table seat and the movable tension table seat; the fixed tension table seat is fixedly connected with a reinforced body; the movable tension table seat is arranged on the reinforced body and can move in a reciprocating mode in the length direction of the reinforcing rib; the movable tension table seat is provided with pushing plates for abutting against the sleeve steel plate anchorage devices; the pushing plates are horizontally aligned to the sleeve steel plate anchorage devices; one sleeve steel plate anchorage device is fixedly connected with the reinforced body together; the expanding device pushes the movable tension table seat; the movable tension table seat pushes the other sleeve steel plate anchorage device outwards so as to tension the reinforcing rib. The device is simple in construction; large-scale equipment is not needed in construction and operation; the device is easy to obtain.

Description

technical field [0001] The invention relates to a prestressed stretching method and device for reinforcement of surface layer embedding. Background technique [0002] Embedded reinforcement refers to slotting the surface of the tension area of ​​the lower part of the bridge or frame beam to be reinforced, and then using adhesive to embed high-strength materials (such as fiber-reinforced composite material tendons, high-strength steel strands, high-strength steel bars, etc.) into the grooves. In order to achieve the purpose of increasing the bearing capacity or stiffness of the member. Compared with surface paste reinforcement, reinforcement with reinforcement can improve the bonding performance between the reinforcement material and the reinforcement body, prevent or delay the early peeling and damage of the reinforcement material, thereby effectively improving the reinforcement effect and the utilization rate of the reinforcement material. It can better protect the reinfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00E01D101/28
CPCE01D22/00E01D2101/28E04G21/121
Inventor 郭子雄叶勇黄群贤徐根连林载庚陈义龙
Owner HUAQIAO UNIVERSITY
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