Embedded strain meter

Abstract

The invention discloses an embedded strain meter relating to a strain measuring device of stress in an earth / wood structure. The embedded strain meter comprises a housing, a temperature sensor, a strain force sensor, and a cable. The temperature sensor and the strain force sensor are disposed in the housing, and the cable is disposed on the middle part of the housing. The cable is connected with the temperature sensor and the strain force sensor. According to the invention, the temperature sensor is additionally disposed in the common concrete strain meter, and therefore the temperature compensation can be facilitated, the accuracy and the reliability of the monitoring data can be improved, and the engineering accidents caused by the ambient temperature factor can be prevented.

Description

technical field [0001] The invention relates to a stress-strain measuring device inside a civil structure, in particular to an embedded strain gauge. Background technique [0002] Concrete strain gauges are generally embedded strain gauges, which are buried in concrete structures such as foundation piles, or tied to steel bars, and are used to measure the strain and stress of concrete and steel bars inside the structure. They are mainly used in bridges, roads, and railways. Stress and strain measurement inside concrete structures such as subways, tunnels, dams, foundation piles, etc., because they are used in different projects, the environment for stress and strain measurement will also be different, which affects the accuracy and reliability of stress and strain monitoring data One of the bigger factors is the temperature of the measurement environment. Different temperatures will make the data measured under the same stress condition deviate greatly, so that people cannot...

AI Technical Summary

Problems solved by technology

[0002] Concrete strain gauges are generally embedded strain gauges, which are buried in concrete structures such as foundation piles, or tied to steel bars, and are used to measure the strain and stress of concrete and steel bars inside the structure. They are mainly used in bridges, roads, and railways. Stress and strain measurement inside concrete structures such as subways, tunnels, dams, foundation piles, etc., because they are used in different projects, the environment for stress and strain measurement will also be different, which affects the accuracy and reliability of stress and strain monitoring data One of the bigger factors is the temperature of the measurement environment. Different temperatures will make the data measured under the same stress condition deviate greatly, so that people cannot accurately obtain the stress-strain data inside the concrete structure, which affects people's understanding of the inside of the concrete structure. The judgment of stress, which leads to the occurrence of engineering accidents and the losses caused are huge

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