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Multifunctional Concrete Single Tensile Specimen Forming and Experimental Device

An experimental device and concrete technology, which is applied in the field of multi-functional test piece forming and experimental device, can solve the problems of eccentricity and incomplete contact, and achieve the effect of convenient use, convenient materials, and improvement of the forming quality of the test piece.

Active Publication Date: 2020-06-09
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of eccentricity caused by relatively incomplete contact of the existing concrete uniaxial tensile test specimens, the present invention further proposes a multifunctional concrete single tensile test specimen forming and experimental device

Method used

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  • Multifunctional Concrete Single Tensile Specimen Forming and Experimental Device
  • Multifunctional Concrete Single Tensile Specimen Forming and Experimental Device
  • Multifunctional Concrete Single Tensile Specimen Forming and Experimental Device

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specific Embodiment approach 1

[0016] Specific implementation mode one: combine Figure 1 to Figure 3 Describe this embodiment, the multifunctional concrete single-tension test piece forming and experimental device described in this embodiment comprises mold bottom plate 1, two mold side plates 2, mold loam cake 11 and two mold fixture units, two mold side plates 2 The two ends of each mold side plate 2 are respectively connected to the two mold clamp units, and the mold upper cover 11 is connected to the mold side plate 2 and the mold clamp units. The mold side plate 2 is made of steel plates, which can be stacked in the thickness direction. The mold bottom plate 1 has a certain strength and rigidity, which is enough to ensure that the bottom surface of the concrete bottom is flat after prefabricated, without deformation. The mold upper cover 11 has certain strength and rigidity, and can be made of transparent materials, such as plexiglass, which is convenient for observing the molding quality of the test...

specific Embodiment approach 2

[0017] Specific implementation mode two: combination Figure 1 to Figure 3 Describe this embodiment, each described end plate fixture unit of multifunctional concrete single-tension test piece forming and experiment device described in this embodiment comprises fixture 3, tie rod 4 and two connecting plates 5, and two connecting plates 5 are arranged in parallel , one end of the pull rod 4 is connected to one end of the two connecting plates 5 , and the clamp 3 is connected to the other ends of the two connecting plates 5 .

[0018] The fixture 3 can be assembled from steel materials of different thicknesses with extremely high tensile strength according to the thickness of the tensile test pieces. The fixture should be symmetrically designed to ensure that the axis is consistent with the axis of the specimen. The contact surface between the fixture and the concrete should be set in a circular arc shape.

[0019] The tie rod 4 is strong enough to ensure no damage or fatigue ...

specific Embodiment approach 3

[0020] Specific implementation mode three: combination Figure 1 to Figure 3 Describe this embodiment, the multifunctional concrete single-tension test piece molding and experimental device described in this embodiment also includes a first pin 6 and a second pin 7, and one end of the pull rod 4 passes through the first pin 6 and one end of the two connecting plates 5 To connect, the clamp 3 is connected to the other ends of the two connecting plates 5 through the second pin 7 . Other components and connections are the same as those in the second embodiment.

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Abstract

The invention discloses a multifunctional concrete single-pull test part molding and experiment device, relates to a multifunctional test part molding and experiment device, in particular to a multifunctional concrete single-pull test part molding and experiment device, and aims to solve the problem that eccentricity is caused as a conventional concrete single-shaft pull test part is relatively incomplete in contact. The device comprises a bottom plate, two side mold plates, an upper mold cover and two mold clamping units, wherein the two side mold plates are arranged on a bottom mold plate; two ends of each side mold plate are respectively connected with the two mold clamping units; and the upper mold cover and the side mold plates are connected with the mold clamping unit. The device belongs to the field of buildings.

Description

technical field [0001] The invention relates to a multifunctional test piece forming and experimental device, in particular to a multifunctional concrete single-tension test piece forming and experimental device, which belongs to the construction field. Background technique [0002] The uniaxial tensile test of concrete is easy to produce eccentricity, which leads to partial tensile failure of the concrete, and it is difficult to obtain the ideal uniaxial axial tensile performance, and although there are standards for concrete uniaxial tensile performance requirements. However, the current uniaxial tensile test fixtures have not been unified, and some fixtures cannot be automatically centered in the experiment, resulting in the failure of the experiment due to eccentricity, and it is difficult to guarantee the experimental effect. Moreover, only three sides of the uniaxial tensile test specimen are molds The molding surface and the top surface are manually smoothed, which wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/36G01N3/02G01N3/04
CPCG01N1/36G01N3/02G01N3/04G01N2001/366G01N2203/0298G01N2203/04
Inventor 吴香国张孝臣周瑞华刘春平
Owner HARBIN INST OF TECH
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