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Intelligent prestressed anchor plate and prestress monitoring method

A technology of prestressing and anchoring plates, which is applied in the measurement of the change force of the optical properties of the material when it is stressed, the sheet pile wall, the measurement of force, etc., can solve the problems that cannot truly reflect the force of the prestressed beam, etc. To achieve the effect that is beneficial to the scope of application, the stiffness and ultimate strength are small, and the stiffness and ultimate strength are large

Pending Publication Date: 2018-08-24
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an intelligent prestressed anchor plate for monitoring the force of the prestressed beam, the current method of sampling and measuring steel strands cannot truly reflect the force of the entire prestressed beam, The integrated design of the strain sensor and the prestressed anchor plate, that is, by monitoring the prestressed anchor plate, the force status of the prestressed beam can be obtained. Compared with the existing sampling measurement method, it can more truly reflect the entire prestressed beam The stress situation, and easy to use

Method used

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  • Intelligent prestressed anchor plate and prestress monitoring method
  • Intelligent prestressed anchor plate and prestress monitoring method

Examples

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Embodiment 1

[0041] This embodiment provides an intelligent prestressed anchor plate;

[0042] Such asfigure 1 and figure 2 As shown, the intelligent prestressed anchor plate in the present embodiment includes an anchor plate 4, and a plurality of strain sensors are arranged on the anchor plate 4, and the strain sensor includes a measurement section 1 that produces consistent deformation with the anchor plate and is located Sensitive element 2 on measuring section 1.

[0043] In the present invention, a plurality of strain sensors are arranged on the anchor plate, and the strain sensor includes a measuring section which produces consistent deformation with the anchor plate and a sensitive element arranged on the measuring section. After the prestressed bundle is anchored, all steel strands are stressed It will be transmitted to the prestressed anchor plate. After the integrated design of the strain sensor and the prestressed anchor plate, the prestressed anchor plate can be monitored to ...

Embodiment 2

[0045] This embodiment provides a strain sensor;

[0046] The strain sensor in this embodiment includes a measuring section 1 that produces consistent deformation with the anchor plate and a sensitive element 2 that is arranged on the measuring section 1. The measuring section 1 includes a first measuring section 11 and a second measuring section 12. On the cross-section of the anchor plate in the force-bearing direction, the cross-sectional area of ​​the first measuring section 11 is smaller than the cross-sectional area of ​​the second measuring section 12 .

[0047] By setting the measurement section to include the first measurement section and the second measurement section, and on the section perpendicular to the force direction of the anchor plate, the cross-sectional area of ​​the first measurement section is smaller than the cross-sectional area of ​​the second measurement section, when the anchor plate occurs When deforming, the strains of the first measurement sectio...

Embodiment 3

[0059] This embodiment provides an intelligent prestressed anchor plate;

[0060] Such as Figure 1-Figure 3 As shown, the intelligent prestressed anchor plate in this embodiment includes an anchor plate 4, and the anchor plate is provided with a plurality of strain sensors, and the strain sensor includes a measurement section 1 that produces consistent deformation with the anchor plate 4 and is located on the Sensitive element 2 on measuring section 1.

[0061] In the present invention, a plurality of strain sensors are arranged on the anchor plate, and the strain sensor includes a measuring section which produces consistent deformation with the anchor plate and a sensitive element arranged on the measuring section. After the prestressed bundle is anchored, all steel strands are stressed It will be transmitted to the prestressed anchor plate. After the integrated design of the strain sensor and the prestressed anchor plate, the prestressed anchor plate can be monitored to ob...

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Abstract

The invention discloses an intelligent prestressed anchor plate and a prestress monitoring method. The intelligent prestressed anchor plate comprises an anchor plate, wherein the anchor plate is provided with a plurality of strain sensors, each strain sensor comprises a measuring segment which is consistent in deformation with the anchor plate and a sensitive element arranged on the measuring segment. According to the intelligent prestressed anchor plate and the prestress monitoring method provided by the invention, a plurality of strain sensors are arranged on the anchor plate, and each strain sensor comprises the measuring segment which is consistent in deformation with the anchor plate and the sensitive element arranged on the measuring segment; due to the fact that all stress on steelstrands is transferred to the prestressed anchor plate after prestressing tendon anchoring, by integrating the strain sensors with the prestressed anchor plate, the prestressed anchor plate can be monitored to obtain the stress state of the prestressing tendon; compared with the existing steel strand sampling measurement manner, the stress state of the entire prestressing tendon can be reflected in a more real way and the use is convenient.

Description

technical field [0001] The invention relates to the field of prestressed anchors, in particular to an intelligent prestressed anchor plate and a prestressed monitoring method. Background technique [0002] Prestressing engineering is to apply pre-tensioning stress to the steel bars in the tension module before the engineering structural members bear the external load, so as to improve the stiffness of the members, delay the appearance of cracks, and increase the durability of the members. From the point of view of the mechanical structure, its meaning is to pre-stress it. The advantage is that it can improve the rigidity of the structure itself, reduce vibration and elastic deformation. This can significantly improve the strength of the tensile module and make the original resistance stronger. [0003] As the main intelligent prestressed anchor plate in prestressed engineering, steel strand is made of twisted steel wires. Because of its high strength and good flexibility, it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/22G01L1/24E04C5/12E01D19/14E02D5/74
CPCG01L1/22G01L1/242E01D19/14E02D5/74E04C5/12
Inventor 邓年春杨涛唐志宇
Owner GUANGXI UNIV
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