A Practical Test Device for Bearing Capacity of Shear Parts

A test device and the technology of shearing parts, which are applied in the field of practical shearing part bearing capacity test devices, can solve the problems of lack of reference objects for measuring deformation and poor experimental accuracy.

Active Publication Date: 2022-02-22
HENAN UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects and problems existing in the existing equipment, the present invention provides a practical test device for the bearing capacity of the shear parts, which effectively solves the problem in the existing equipment that only a single load can be applied to judge the bending deformation of the intermediate shear parts , and there is no reference object for measuring the amount of deformation in the test process, only relying on the naked eye observation of the test personnel, resulting in the problem of poor test accuracy

Method used

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  • A Practical Test Device for Bearing Capacity of Shear Parts
  • A Practical Test Device for Bearing Capacity of Shear Parts

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Experimental program
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Effect test

Embodiment 1

[0020] Embodiment 1: This embodiment aims to provide a practical test device for the bearing capacity of shear members, and provides an effective test loading measurement device for studying the mechanical properties of individual shear members. A single load can be applied to judge the bending deformation of the intermediate shear parts, and there is no reference object for measuring the deformation during the test process, and only the naked eye observation of the test personnel results in poor test accuracy. This embodiment provides an operation Simple, high precision, and two reference objects are set in the horizontal and vertical directions to mark its effective displacement.

[0021] Specifically, such as Figure 1-2 As shown, a practical test device for the bearing capacity of a shear member includes a loading control device and a measurement acquisition device; the loading control device is used to apply a loading force to the shear member, and the measurement acquisi...

Embodiment 2

[0034] Embodiment 2: This embodiment is basically the same as Embodiment 1, the difference is that this embodiment further limits the way of setting collection points.

[0035] The collection point is provided with a mounting hole, a laser emitting head is fixed in the mounting hole, and a detecting head is arranged on the back of the vertical coordinate paper, and the detecting head can collect the path and displacement of the laser emitting head.

[0036] In this embodiment, a laser emitting head is set at the collection point. The laser emitting head is small in size and light in weight and has little impact on the test of the shearing capacity. At the same time, it can emit laser light on the vertical coordinate paper, and the laser is shot on the coordinate paper. It is convenient for the test personnel to make dots on the coordinate paper, and at the same time, the detection head can record the path walking image of the laser displacement, and extract its walking path on ...

Embodiment 3

[0038] Embodiment 3: This embodiment is basically the same as Embodiment 1, the difference is that this embodiment further explains the structure of the pointer.

[0039] The pointer points to the collection point in the initial state. With the displacement of the collection point, the pointer can be driven to slide in the guide rail. In order to facilitate the identification of the location of the collection point, a reference rod is vertically set at the end of the pointer. When the pointer is moved, the reference rod and The corresponding position of the collection points can indicate that the pointer has moved in place, and the precise displacement can be obtained through the reading of the dial indicator.

[0040] In the present invention, the piston rod of the jack is connected to the fixed pulley through a steel strand, and the other end is connected to the outer end of the shear member. When the piston rod moves in the reverse direction, it drives the shearing parts, s...

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PUM

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Abstract

The invention discloses a practical test device for bearing capacity of shear parts, which includes a loading control device and a measurement and acquisition device; the loading control device includes a hydraulic traction bar, a steel strand and a guide wheel, and the measurement and acquisition device includes a horizontal acquisition unit and a Vertical acquisition unit; the horizontal acquisition unit includes pointers, guide rails, dial indicator and horizontal coordinate paper; the shear parts are provided with acquisition points. The guide rail is fixed on the top of the test bench or the additional steel plate along the horizontal direction, and is connected with the anti-corrosion The collection point of the cut piece corresponds, the pointer is set on the guide rail, the end of the pointer faces the collection point, and the contact of the dial gauge touches the end of the pointer; the vertical collection unit includes a vertical plate and a vertical coordinate paper; The vertical coordinate paper is set on the vertical plate; this test device provides a new detection method for measuring the ultimate shear bearing capacity and effective deformation of the shear parts. The data is more accurate, the practicability is strong, and the operation is convenient. A major innovation in the bearing capacity test.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a practical test device for the bearing capacity of a shearing part. Background technique [0002] Since the 1920s, composite components and structures have been continuously recognized and promoted by the engineering community. At the same time, the research work on composite components and structures is also increasing and deepening, and the advantages of the more common prefabricated steel structures and concrete composite components and structures are gradually revealed. [0003] In the prefabricated steel structure and concrete composite components and structures, the steel structure has the characteristics of convenient connection, good tensile performance, and is conducive to factory construction. Concrete has the characteristics of low cost, easy to obtain materials, good fire resistance, and good compression resistance. The prefabricated steel str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/24G01N3/06
CPCG01N3/24G01N3/062G01N3/068G01N2203/0025G01N2203/0605G01N2203/0641G01N2203/0676
Inventor 马少春娄元元李娜娜鲁冰鲍鹏王辉
Owner HENAN UNIVERSITY
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