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Concrete triaxial stress measuring device and manufacturing method and measuring method thereof

A technology of triaxial stress and measuring device, which is applied in the direction of measuring device, force/torque/work measuring instrument, measuring force, etc., can solve the problem that there is no device for effectively measuring the accurate stress state of concrete.

Pending Publication Date: 2020-08-11
SHANGHAI INST OF TECH
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Problems solved by technology

[0003] The purpose of the present invention is to provide a concrete triaxial stress measuring device and its manufacturing method and measuring method, so as to solve the technical problem that there is no device for effectively measuring the accurate internal stress state of concrete in the prior art

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  • Concrete triaxial stress measuring device and manufacturing method and measuring method thereof
  • Concrete triaxial stress measuring device and manufacturing method and measuring method thereof

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Embodiment Construction

[0023] The following will combine figure 1 and figure 2 A concrete triaxial stress measurement device provided by the present invention is described in detail. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and specific operation process are given, but the protection of the present invention The scope is not limited to the following examples, and those skilled in the art can modify and polish them within the scope of not changing the spirit and content of the present invention.

[0024] Please refer to figure 1 and figure 2 , a concrete triaxial stress measurement device, comprising a concrete outer protective layer 1 and a triaxial stress measurement body 2, the triaxial stress measurement body 2 is located in the concrete outer protective layer 1;

[0025] The triaxial stress measurement body 2 includes a triaxial steel frame 21, three concrete pads 22 and three flexible film pressur...

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Abstract

The invention relates to a concrete triaxial stress measuring device and a manufacturing method and a measuring method thereof. The measuring device comprises a concrete outer protective layer and a triaxial stress measuring body, and the triaxial stress measuring body is located in the concrete outer protective layer. The triaxial stress measuring body comprises a triaxial steel reinforcement framework, three concrete cushion blocks and three flexible film pressure sensors. The triaxial steel reinforcement framework comprises three steel reinforcements which are perpendicular to one another,one ends of the three steel reinforcements are welded together, and the other ends of the three steel reinforcements are respectively and vertically provided with one concrete cushion block. The bottom end surface of the concrete cushion block is fixedly connected with the reinforcing steel bar. The flexible thin film pressure sensor is arranged on the top end face of the concrete outer protectivelayer. The wiring end of the flexible thin film pressure sensor is connected with a wire, the wire is led out of the concrete outer protective layer, and the technical problem that a device for effectively measuring the accurate stress state in concrete does not exist in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of civil engineering monitoring applications, in particular to a concrete triaxial stress measuring device, a manufacturing method and a measuring method thereof. Background technique [0002] The stress state of concrete structures is an important parameter to reflect its safety, so the stress measurement of concrete structures is an important content in the model test research and field monitoring of concrete structures. At present, there is no effective device for measuring the accurate stress state inside the concrete. Usually, a device with a resistance strain gauge attached to the surface of the concrete structure is used to measure the surface strain, and the stress on the concrete surface is obtained by converting the estimated elastic modulus of the concrete material. Since concrete is a non-uniform material, there is usually a certain gap between the theoretical analysis results and the experimenta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/1627G01L1/22G01N1/36G01N1/28
CPCG01L1/2206G01L1/2287G01L5/1627G01N1/28G01N1/36G01N33/383G01N2001/366
Inventor 宣淦清高红兵李培刚谭冬莲詹志军赵雄李俊奇吴梦笛兰才昊韩慧
Owner SHANGHAI INST OF TECH
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