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Horizontal concrete uniaxial tensile test device and use method thereof

A technology of uniaxial tension and testing equipment, which is applied in the direction of measuring equipment, using stable tension/pressure testing material strength, instruments, etc., can solve the problems of reducing the accuracy of tensile test results, height restrictions, etc., and improve the use of range, eliminate initial stress, and improve stability

Active Publication Date: 2020-10-09
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the technical problems existing in the prior art, the present invention provides a horizontal concrete uniaxial tensile test device and its use method to solve the problem that in the existing uniaxial tensile test, when the specimen is installed in the vertical direction, it often It is limited by the height, and it is easy to cause the concrete specimen to be eccentric during the stretching process, which reduces the technical problem of the accuracy of the tensile test results

Method used

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  • Horizontal concrete uniaxial tensile test device and use method thereof
  • Horizontal concrete uniaxial tensile test device and use method thereof
  • Horizontal concrete uniaxial tensile test device and use method thereof

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Embodiment

[0065] as attached Figure 1-15 As shown, this embodiment provides a horizontal concrete uniaxial tensile test device, which includes a pressing member 1, a base 2, a first rack clamping body 4, a second rack clamping body 5, and a third rack clamping body. The rack clamping body 6, the fourth rack clamping body 7, the first transmission gear 8, the second transmission gear 9, the third transmission gear 10, the fourth transmission gear 101 and the gear transmission shaft 102.

[0066] The lower pressure piece 1 is arranged above the base 2, the lower pressure piece 1 includes a pressure plate 11 and two vertical racks 12, the pressure plate 11 is horizontally arranged above the base 2, the upper end surface of the pressure plate 11 is in contact with the upper pressure plate of the testing machine Connection; the upper end surface of the pressure plate 11 is provided with a fixed card slot 111, the fixed card slot 111 is set horizontally, and the upper platen of the testing m...

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Abstract

The invention discloses a horizontal concrete uniaxial tensile test device and a use method thereof. The horizontal concrete uniaxial tensile test device comprises a pressing piece, the upper end of the pressing piece is connected with an upper pressing plate of a tester, and a base is arranged on a workbench; the two test piece clamping pieces are horizontally arranged on the base in a sliding mode and symmetrically arranged at the two ends of the base. The pressing piece is connected with the two test piece clamping pieces through a transmission gear, the concrete test piece is horizontallyarranged between the two test piece clamping pieces, a clamping space is formed in each test piece clamping piece, and the two ends of the concrete test piece are clamped in the clamping spaces of thetwo test piece clamping pieces in a matched mode respectively; the concrete test piece is horizontally arranged between the two clamping pieces, when the testing machine drives the pressing piece tomove downwards, the two test piece clamping pieces are driven to generate axial tensile force in the horizontal direction on the concrete test piece, eccentricity generated in the tensile process of the concrete test piece is avoided, and the accuracy of a tensile test result is improved; the horizontal installation of the concrete test piece is not limited by height, and the test space is effectively saved.

Description

technical field [0001] The invention belongs to the technical field of concrete testing, and in particular relates to a horizontal concrete uniaxial tensile testing device and a using method thereof. Background technique [0002] At present, there are three main test methods for the tensile performance of concrete: split tension test, straight tension test and bending tension test; among them, the test data measured by the straight tension test is the most accurate and can most directly reflect the tensile strength and strain changes of concrete. Thus, the stress-strain relationship of the concrete material can be obtained; however, due to the natural brittleness of the concrete material, in the uniaxial tensile test, the selection of the fixture and the clamping method of the specimen and the fixture have great influence on the accuracy and success rate of the test. very important. [0003] In the direct tensile test, most of the installation of the concrete specimen is in...

Claims

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Application Information

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IPC IPC(8): G01N3/10G01N3/02G01N3/04
CPCG01N3/10G01N3/02G01N3/04G01N2203/0017G01N2203/0048
Inventor 姚尧鲁昊
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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