A strain gauge for measuring bond-slip between steel and concrete and its pasting method

A technology of bonding slip and strain gauges, applied in the field of strain gauges, can solve the problems of troublesome cutting of steel patches, damage to the actual strength of steel, insufficient test efficiency, etc., and achieve the effect of saving production costs

Active Publication Date: 2020-05-22
TIANJIN CHENGJIAN UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this method will generally damage the actual strength of the steel to a greater extent, it is troublesome to cut the steel patch, and the test efficiency is not high enough

Method used

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  • A strain gauge for measuring bond-slip between steel and concrete and its pasting method
  • A strain gauge for measuring bond-slip between steel and concrete and its pasting method

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Embodiment Construction

[0028] A strain gauge for measuring the bond-slip of steel and concrete and its pasting method according to the present invention will be described in detail below with reference to the embodiments and accompanying drawings.

[0029] In order to make the purpose, technical solution and effect of a strain gauge for measuring the bond-slip of steel and concrete and the pasting method of the present invention clearer and clearer, the embodiment is to further describe the present invention in detail. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] Such as figure 1 , figure 2 As shown, a strain gauge for measuring the bond-slip of steel and concrete of the present invention includes a base layer 12, and the base layer 12 is divided into an upper part, a middle part and a lower part, wherein the upper part is used as a concrete The base layer 2, the front side of the ...

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Abstract

The present invention provides a strain gauge for measuring steel and concrete bonding slipping and a paste method thereof. The strain gauge comprises a base layer, the base layer is divided into an upper portion, a middle portion and a lower portion, the upper portion is taken as a concrete base layer, a concrete cover layer is pasted at the front side surface of the concrete base layer, and the concrete base layer and the concrete cover layer commonly form a concrete paste section; the middle portion forms a non-pasting section which is formed by a sensitive grid pasted at the front side surface of the middle portion of the base layer, a protection slipping upper layer pasted at the front side surface of the sensitive grid and a protection slipping lower layer pasted at the back side surface of the middle portion, and the sensitive grid is provided with a leading-out wire configured to connect with an external measurement device; and the lower portion is taken as a steel base layer, a steel cover layer is pasted at the back side surface of the steel base layer, and the steel base layer and the steel cover layer commonly form a steel pasting section. The strain gauge and the test method thereof employ steel with no need for grooving processing so as to save a lot of manufacturing cost, and the stain pasting method is simple and easy to operate and does not damage the real intensity of steel.

Description

technical field [0001] The invention relates to a strain gauge. In particular, it relates to a strain gauge and a pasting method for measuring the bonding slip between steel and concrete. Background technique [0002] The bond-slip performance between steel and concrete is a hot issue in the research of civil and architectural structures and related fields, especially under the action of seismic reciprocating loads, the bond-slip effect between steel and concrete will seriously affect the overall structure. Therefore, the research on the bond-slip of steel and concrete is of great significance in both theory and engineering practice. The traditional bond-slip effect between steel and concrete is often carried out through push-out tests, and assuming that the steel does not yield, the bond stress is obtained through the equilibrium equation of steel and concrete. The test method for the steel strain is to slot the steel and paste the resistance strain gauge inside, so as to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/22
CPCG01L1/22G01L1/2206
Inventor 吕杨张超马晓飞梁晓黄信刘中宪
Owner TIANJIN CHENGJIAN UNIV
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