A steel bar shear resistance test fixture
A test fixture and shear force resistance technology, which can be used in measuring devices, instruments, scientific instruments, etc., can solve problems such as reducing experimental efficiency and increasing experimental input costs, and achieve the effects of improving experimental efficiency, reducing experimental input costs, and having a simple structure.
Active Publication Date: 2018-06-19
CHINA METALLURGICAL CONSTR ENG GRP
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Problems solved by technology
However, for steel bars of different diameters, when the shear resistance test is performed, the fixed points of the transverse steel bars at both ends of the T-shaped steel bar welding point are different, so it is necessary to prepare multiple sets of fixtures of different specifications for steel bars of different diameters. , it will increase the input cost of the experiment. In addition, when testing multiple groups of T-shaped steel bars with different diameters, it is necessary to replace different fixtures on the testing machine, which reduces the experimental efficiency.
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Embodiment Construction
[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0020] like Figure 1 to Figure 3 As shown, a steel bar shear resistance test fixture in this specific embodiment includes a clamping block 1 and two steel bar fixing blocks 2 located at the bottom of the clamping block, and the bottom surface of the clamping block 1 is arranged along a horizontal straight direction There is a strip-shaped slot 3, and the top surfaces of the two steel bar fixing blocks 2 are respectively provided with a block 4 that is slidably fitted with the strip-shaped slot 3 and enables the two described steel bar fixing blocks 2 to slide along the strip-shaped slot. 3 Relative movement in the length direction, the clamping block 1 is provided with a positioning device capable of positioning the steel bar fixing block 2, and the two steel bar fixing blocks 2 are concentric along the length direction of the strip-shaped slot 3 The wires ...
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The invention discloses a steel bar shear resistance test fixture, which comprises a clamping block and two steel bar fixing blocks located at the bottom of the clamping block. The top surfaces of the steel bar fixing blocks are each provided with a block that is slidably engaged with the bar-shaped slot and enables the two steel bar fixing blocks to move relative to each other along the length direction of the bar-shaped slot. As for the positioning device for positioning the steel bar fixing blocks, the two steel bar fixing blocks are respectively provided with through holes along the coaxial center line along the length direction of the bar-shaped slot. The invention has simple structure and convenient operation, can carry out shear resistance test on steel bars with different diameters and specifications, reduces the test input cost and improves the test efficiency.
Description
technical field [0001] The invention relates to a jig for testing the performance of steel bars, in particular to a jig for testing the shear resistance of steel bars. Background technique [0002] In order to ensure the mechanical strength of the building, it is necessary to test the shear resistance of the welded joints of the welded steel mesh. The shear test is to measure the resistance performance of the steel bar under the action of shear force. It is one of the basic test methods for testing the mechanical properties of the steel bar. It is realized by a special fixture placed on the chuck of the testing machine. The usual inspection method is to randomly select two steel bars and weld them together according to the T-shaped structure, fix the transverse ends of the steel bar sample, and then apply a test force to the longitudinal end of the steel bar sample to test its shear resistance. At present, in the prior art, the clamps for the shear resistance test are all p...
Claims
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IPC IPC(8): G01N3/04
Inventor 赵文莲杨定辉丁大华
Owner CHINA METALLURGICAL CONSTR ENG GRP