A test device for the bonding performance of steel bars and concrete in standard size components
A technology of standard size and test device, applied in the direction of measuring device, mechanical device, instrument, etc., can solve the problems of gap between concrete components and screw rods, easy sliding of concrete components, affecting test results, etc., achieving less materials and instruments, and easy disassembly. , the effect of simple device structure
Inactive Publication Date: 2015-11-25
HOHAI UNIV +1
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is that the concrete components are easy to slide during the test in the existing test device. For the relatively large concrete components, it needs to be implemented with a long steel plate, and a total of eight nuts are required to fix the screw rod. , if the nut is loose, it is easy to cause the gap between the concrete member and the screw rod, thus affecting the test results, and a test device for the bonding performance of steel bars and concrete in standard size members is provided.
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[0013] Below in conjunction with accompanying drawing, the present invention is described in detail:
[0014] Such as figure 1 , figure 2 , image 3 , Figure 4 shown. A test device for the bonding performance of steel bars and concrete in standard size components, including a backing plate 14, a steel bar 16, a front screw 17, a rear screw 18, a first nut 19, a second nut 20, a connector 21, and a concrete Member 22, load cell 23, frame 24, bolts, hydraulic chuck. The frame 24 includes an upper bearing plate 2, a lower bearing plate 3, a left steel plate 4, and a right steel plate 5. The upper bearing plate 2 is connected with the left steel plate 4 and the right steel plate 5 by bolts, and the lower bearing plate 3 is connected with the left steel plate 4. 1. The right side steel plate 5 is connected by bolts, so that the upper bearing plate 2, the lower bearing plate 3, the left side steel plate 4, and the right side steel plate 5 are connected as a whole, and the ass...
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The invention discloses a device for testing an adhesive property of a standard size component rebar and concrete. The device is characterized in that a concrete component is placed on a lower bearing plate, a base plate is arranged on the concrete component, and the front and rear positions of a left side steel plate and a right steel plate are respectively provided with two vertical grooves; the vertical grooves are perpendicular to the lower bearing plate, the vertical groove is provided with at least one horizontal groove, and the horizontal grooves and the lower bearing plate are parallel; the height of the lower bearing plate arranged on the bottoms of the horizontal grooves is the sum of the height of the concrete component and the thickness of the base plate, a front side screw rod and a rear side screw rod are fixed between the two corresponding horizontal grooves through nuts, the heights of the horizontal grooves and the diameters of the front side screw rod and the rear side screw rod are same, an upper bearing plate is mutually connected with a connecting piece, the connecting piece is mutually connected with a load sensor, and a hydraulic chuck is mutually connected with the lower part of the rebar. The device provided by the invention has the advantages that the structure is simple, the disassembly is convenient, the required material and instrument are less, and the device is suitable for scientific research and is suitable for testing an adhesive property component in a construction site.
Description
technical field [0001] The invention relates to a test device for the bond performance between steel bars and concrete of standard-sized components, which belongs to the field of concrete construction. Background technique [0002] In the field of civil engineering, the reciprocating load cycle test device commonly used in experiments currently uses four screws and two long steel plates to fix the concrete member on the lower bearing plate. In this method, many parts are required and the operation is more complicated. The error is relatively large. For larger concrete members, it needs to be combined with a longer long steel plate to implement. A total of eight nuts are required to fix the screw. Due to the large vibration, the nut is easy to loosen, which is easy to cause the gap between the concrete member and the screw. The gap between them will affect the test results. Contents of the invention [0003] The technical problem to be solved by the present invention is th...
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IPC IPC(8): G01N19/04
Inventor 沈德建成大宝陈莹申嘉鑫金秋蓉姚盼盼殷粉芳王涛王旭东邓树成田甜江婷
Owner HOHAI UNIV