CN209894598U - Test device for testing cooperative performance of steel plate - Google Patents
Test device for testing cooperative performance of steel plate Download PDFInfo
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- CN209894598U CN209894598U CN201920365848.2U CN201920365848U CN209894598U CN 209894598 U CN209894598 U CN 209894598U CN 201920365848 U CN201920365848 U CN 201920365848U CN 209894598 U CN209894598 U CN 209894598U
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Abstract
The utility model discloses a test device for testing the synergy property of a steel plate, which comprises a test steel plate, two tension screws and two clamping components, wherein the two clamping components comprise a positive clamping plate and a negative clamping plate which are mutually matched and are used for clamping the test steel plate, the two clamping components are transversely arranged and are respectively arranged at the two ends of the test steel plate, and fiber reinforced cloth is attached to the surface of the test steel plate which is not contacted with the clamping components when the test steel plate is clamped by the two clamping components; the two positive clamping plates are respectively provided with adjusting threaded holes which are arranged along the transverse direction, the two adjusting threaded holes are respectively matched with the tensioning screw rods in a one-to-one spiral mode, and the two ends of the test steel plate are fastened on the two clamping assemblies through fastening structures respectively. Therefore, the test steel plate can be tested to test the cooperative tension performance of the steel plate and the externally attached fiber reinforced cloth under different prestress states.
Description
Technical Field
The utility model relates to a building engineering field, more specifically say and relate to a test device of test steel sheet synergy property test.
Background
In the reinforcement of the reinforced concrete column, the problem of stress hysteresis effect existing in the traditional reinforcement can be better solved by adopting the transverse prestress technology, the utilization rate of the reinforcement material and the reinforcement effect are effectively improved, the transverse prestress technology applies the annular pretension force through the reinforcement material, so that the reinforced concrete column obtains the active transverse constraint force, the deformation capacity and the bearing capacity of the concrete are improved, and the bearing capacity and the deformation capacity of the reinforcement material are effectively improved. The prestress steel plate hoop (PSJ) reinforcement technology is used for reinforcing reinforced concrete, so that the axial compression performance, the shearing resistance and the deformation performance of the reinforced concrete column are improved, the section size and the rigidity of an original component are not changed after reinforcement, and the seismic shear distribution of an original structure is not influenced.
The prestress steel hoop-fiber reinforced material (FRP) composite reinforcement technology is a novel prestress and fiber reinforced material composite reinforcement technology for reinforcing a reinforced concrete column on the basis of a prestress steel plate hoop reinforcement technology and aiming at special reinforcement requirements such as large reinforcement size, high external packing reinforcement requirement, and the requirement of outdoor environment on corrosion resistance and durability. According to the composite reinforcement technology, the stress hysteresis effect problem is solved by providing an active transverse restraining force by the prestressed steel plate hoop, and a Fiber Reinforced Plastic (FRP) externally attached to the prestressed steel plate hoop provides a high-strength transverse restraining force, so that the anti-seismic performance of the reinforced concrete column is effectively improved; the technical bottleneck that the Fiber Reinforced Plastic (FRP) is difficult to apply annular prestress is solved by adopting a prestress steel plate hoop (PSJ) reinforcement technology, the Fiber Reinforced Plastic (FRP) and the prestress steel plate hoop (PSJ) act together, and the good ductility of steel can ensure that the transverse restraining force of the reinforced concrete column cannot be completely lost after the Fiber Reinforced Plastic (FRP) is brittle-broken and stripped, so that sudden collapse is avoided; meanwhile, the Fiber Reinforced Plastic (FRP) can protect the steel plate hoop, and the durability of the steel plate hoop is effectively improved.
However, at present, no test device exists for testing the cooperative working performance of the steel plate hoop and the Fiber Reinforced Plastic (FRP) under different prestress levels.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a test steel sheet is test device of capability test in coordination, it can test the steel sheet under different prestressing force states with the outer fibre reinforcement cloth of pasting in coordination pull the performance.
In order to achieve the above purpose, the utility model discloses a solution is:
the utility model provides a test device of test steel sheet collaborative behavior test, includes two straining screw and is used for pressing from both sides two centre gripping subassemblies that establish the test steel sheet, two the centre gripping subassembly all including be used for mutually supporting with will the test steel sheet presss from both sides positive splint and the negative splint that establish, with the test steel sheet is by two when the centre gripping subassembly presss from both sides the length direction of test steel sheet does test device's is horizontal, two set up respectively on the positive splint along transverse arrangement's adjusting screw hole, two adjusting screw hole respectively with a pair of screw cooperation of straining screw, wherein, two the centre gripping subassembly all is provided with the confession the fastening of the both ends fastening of test steel sheet is structural.
The first ends of the two tensioning screws are respectively in threaded fit with the corresponding adjusting threaded holes.
When the test steel plate is clamped by the two clamping assemblies, the axis of the adjusting threaded hole is positioned on the extending surface of the test steel plate.
In the same clamping assembly, the positive clamping plate and the negative clamping plate are in lap joint and then are integrally in a square shape or a cylindrical shape.
The two positive clamping plates respectively comprise a first bearing platform and a second bearing platform, the first bearing platform and the second bearing platform are connected and are L-shaped in the same positive clamping plate, the height of the first bearing platform is larger than that of the second bearing platform, and the adjusting threaded hole is formed in the first bearing platform.
Two the negative splint all include with first cushion cap lapped first butt platform and with second cushion cap lapped second butt platform, it is same in the negative splint, first butt platform with second butt platform is connected and is the L style of calligraphy, just first butt platform highly be less than the height of second butt platform, just the one end clamp of test steel sheet is located the second cushion cap with between the second butt platform.
Two fastening structure all includes first fastener, first through-hole, steel sheet through-hole and third screw hole, two first fastener all includes the second bolt, and is same in the centre gripping subassembly, first through-hole sets up in the second butt bench, the steel sheet through-hole sets up in one of test steel sheet is served, the third screw hole sets up on the second cushion cap, the third screw hole with second bolt screw fit, and, the one end clamp of test steel sheet is established cooperateing positive splint with during between the negative splint, first through-hole the steel sheet through-hole with the third screw hole corresponds each other, just the second bolt is inserted in proper order and is located first through-hole the steel sheet through-hole with in the third screw hole.
Two fastening structure all still includes second fastener, first screw hole and second screw hole, two the second fastener all includes first bolt, and is same in the centre gripping subassembly, first screw hole set up in on the first cushion cap, just the second screw hole not with corresponding adjust the screw hole intercommunication, matched with positive splint with during the negative splint overlap joint, first screw hole with the second screw hole corresponds each other, just first bolt screw in proper order in first screw hole and the second screw hole.
The utility model relates to a test steel sheet synergy property test's test device has following beneficial effect: the common centre gripping test steel sheet of two centre gripping subassemblies, and all seted up horizontal regulation screw hole on two positive splint, two regulation screw holes respectively with match the spiral cooperation of the straining screw who establishes, and the equal fixed connection in both ends of two straining screws, carry out stretch-draw to two straining screws promptly, exert the prestressing force for the test steel sheet of centre gripping with this, afterwards through adjusting two straining screws and adjusting the relative position between the screw hole, adjust the prestressing force of exerting for the test steel sheet, can test like this the test steel sheet under different prestressing force states with the outer fibre reinforcing cloth of pasting in coordination pull the performance.
Drawings
Fig. 1 is a front view of the middle test device of the present invention.
Fig. 2 is a top view of the middle test device of the present invention.
Fig. 3 is a schematic structural view of the middle clamping plate of the present invention.
Fig. 4 is a schematic structural view of the middle negative splint of the present invention.
Fig. 5 is a schematic diagram of the test device of the present invention.
In the figure:
100-test piece
10-test Steel plate 11-Steel plate through hole
20-tension screw 30-clamping assembly
40-positive clamping plate 41-adjusting threaded hole
42-first bearing platform 421-second threaded hole
43-second bearing 431-third threaded hole
50-negative clamping plate 52-first abutment station
521-first threaded hole 53-second abutment
531-first through hole 61-first bolt
62-second bolt 71-reaction frame
72-Jack 73-force sensor
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.
A test device for testing the synergy performance of a steel plate comprises a test piece 100, wherein the test piece 100 comprises two tensioning screws 20 and two clamping assemblies 30, the two clamping assemblies 30 are respectively fastened at two ends of the test steel plate 10 through fastening structures, the two tensioning screws 20 are respectively arranged with the two clamping assemblies 30 in a one-to-one manner, and the two clamping assemblies 30 are matched with each other and used for clamping the test steel plate 10. When the test steel plate 10 is clamped on the two clamping assemblies 30, the two clamping assemblies 30 are both arranged along the length direction of the test steel plate 10, and the middle part of the test steel plate 10 is attached with fiber reinforced cloth, which is conventional fiber reinforced composite cloth (FRP cloth for short at present), wherein the FRP cloth is not in contact with the two clamping assemblies 30. The fiber reinforced cloth is wound around the middle part of the test steel plate 10 and is adhered to the test steel plate 10 through a conventional adhesive.
For convenience of description, the length direction of the test steel plate 10 is the transverse direction of the test device when the test steel plate 10 is clamped by the two clamping assemblies 30.
The two clamping assemblies 30 have the same structure, and the two clamping assemblies 30 are arranged in a mirror image manner, and one of the clamping assemblies 30 is taken as an example for description. The clamping assembly 30 comprises a positive clamping plate 40 and a negative clamping plate 50 which are matched with each other, the positive clamping plate 40 and the negative clamping plate 50 are matched with each other to clamp one end of the test steel plate 10, an adjusting threaded hole 41 is formed in the positive clamping plate 40, the adjusting threaded hole 41 is arranged along the transverse direction, the adjusting threaded hole 41 is matched with the first end of the corresponding tension screw rod 20 in a spiral mode, the tension screw rod 20 is arranged transversely, the second end of the tension screw rod 20 is fixed in a conventional mode, for example, the second ends of the two tension screw rods 20 are fixed on a fastening body, the fastening piece can be a reaction frame, a test frame or a wall body and the like, and the conventional mode can be spiral fastening, and the clamping is.
The utility model discloses in, two positive splint 40 equal transverse arrangement, and two positive splint 40 mirror images are arranged, and two adjusting screw hole 41 back of the body are arranged mutually, and two negative splint 50 equal transverse arrangement, and two negative splint 50 mirror images are arranged. The positive plate 40 and the negative plate 50 are overlapped with each other and have a square shape. In addition, the positive clamping plate 40 and the negative clamping plate 50 can be overlapped with each other in other shapes, such as a column shape.
Preferably, when the test steel plate 10 is clamped by the two clamping assemblies 30, and in the same clamping plate 40, the adjusting screw holes 41 are connected with the first ends of the corresponding tensioning screws 20, and the axes of the adjusting screw holes 41 are located on the extension surface of the test steel plate 10, and the two adjusting screw holes 41 are respectively arranged coaxially with the corresponding tensioning screws, so that the force applied to the test steel plate 10 by the tensioning screws 20 can ensure that the force applied by the tensioning screws 20 does not provide an additional bending moment.
The utility model relates to a test device for testing the synergic performance of a steel plate, two clamping components 30 jointly clamp a test steel plate 10, and the two positive splints 40 are both provided with a transverse adjusting threaded hole 41, the two adjusting threaded holes 41 are respectively matched with the screws of the matched tensioning screws 20, one end of each tensioning screw 20 is fastened on the fastening piece, the two tightening screws 20 are pressurized by the fastening members, so that both ends of the test steel plate 10 are tensioned, thereby prestressing the test steel plate 10, moreover, prestress with different sizes is applied to the clamped test steel plate 10 by adjusting the relative positions of the two tightening screws 20 and the corresponding adjusting threaded holes 41, specifically, the two tightening screws 40 are fastened on the fastening piece through locking nuts, before the test, the pre-stress applied to the test steel plate 10 was changed by tightening the tightening screw 20 using a torque wrench. Therefore, the cooperative tension performance of the test steel plate 10 and the test steel plate 10 externally attached with the FRP cloth under different prestress states can be tested.
The utility model discloses in, positive splint 40 includes first cushion cap 42 and second cushion cap 43, first cushion cap 42 and second cushion cap 43 interconnect and be the L style of calligraphy, and the height that highly is greater than second cushion cap 43 of first cushion cap 42, and aforementioned regulation screw hole 41 is in on first cushion cap 42, and first cushion cap 42 and second cushion cap 43 integrated into one piece. In addition, the first and second bearing platforms 42 and 43 may be connected in other shapes, such as a T-shape. Preferably, the first bearing platform 42 and the second bearing platform 43 are square, so as to increase the clamping area with the test steel plate 10, and make the test steel plate 10 not easy to loosen. The negative clamping plate 50 includes a first abutting table 52 and a second abutting table 53, the first abutting table 52 is overlapped with the first bearing table 42, the second abutting table 53 is overlapped with the second bearing table 43, the first abutting table 52 and the second abutting table 53 are connected and are in an L shape, and the height of the first abutting table 52 is smaller than that of the second abutting table 53. In addition, if the first bearing platform 42 and the second bearing platform 43 are connected in a T shape, the first abutting platform 52 and the second abutting platform 53 are connected in a chevron shape, and the first abutting platform 52 and the second abutting platform 53 are integrally formed. After the test steel plate 10 is mounted, the first end of the test steel plate 10 is interposed between the second bearing table 43 and the second abutment table 53.
In the present invention, in one of the clamping assemblies 30, the first end of the test steel plate 10 is fastened between the positive clamping plate 40 and the negative clamping plate 50 through the fastening structure; in the other clamping assembly 30, the second end of the test steel plate 10 is fastened between the positive clamping plate 40 and the negative clamping plate 50 by another fastening structure. The two fastening structures are the same, so that one of the fastening structures is taken as an example for explanation.
In the same clamping assembly 30, the fastening structure includes a first fastener, a first through hole 531, a steel plate through hole 11, and a third threaded hole 431. The first fastener comprises a second bolt 62, a first through hole 531 is formed in the second abutting table 53, a steel plate through hole 11 is formed in the first end of the test steel plate 10, a third threaded hole 431 is formed in the second bearing table 43, and the third threaded hole 431 is in threaded fit with the second bolt 62; after the positive and negative plates 40 and 50 are connected to each other, and the first end of the test steel plate 10 is interposed between the positive and negative plates 40 and 50, the first through hole 531, the steel plate through hole 11, and the third screw hole 431 are aligned with each other, and the second bolt 62 is sequentially inserted into the first through hole 531, the steel plate through hole 11, and the third screw hole 431. Thus, the positive clamping plate 40, the test steel plate 10 and the negative clamping plate 50 are fixed together by the first fasteners.
Preferably, in order to further fix the positive clamping plate 40 and the negative clamping plate 50 together, the fastening structure further includes a second fastening member, a first threaded hole 521 and a second threaded hole 42, the second fastening member includes a first bolt 611, the first threaded hole 521 is opened on the first abutting table 52, the second threaded hole 421 is opened on the first bearing table 42, the second threaded hole 421 is a blind hole and is not communicated with the aforementioned adjusting threaded hole 41, the second threaded hole 421 and the first threaded hole 521 correspond to each other after the positive clamping plate 40 and the negative clamping plate 50 are overlapped, and both the second threaded hole 421 and the first threaded hole 521 are in threaded fit with the first bolt 61.
The utility model discloses in, in same fastening structure, first fastener can have a plurality ofly, and the second fastener can have a plurality ofly, uses in this embodiment that first fastener has four, the second fastener has two in same fastening structure as an example.
The utility model discloses in, through the same test steel sheet 10's of two centre gripping subassemblies 30 centre grippings both ends, give two straining screw 40 of transverse arrangement through applying pressure, thereby prestressing force is applyed to test steel sheet 10, and, through adjusting two straining screw 40 respectively with the relative position between the adjusting screw hole 41 that corresponds, can change the prestressing force size of applying for test steel sheet 10, establish fibre reinforcing cloth through pasting on test steel sheet 10 afterwards, can be like this through testing out the mechanical properties of test steel sheet 10 after the experiment that pastes and be equipped with fibre reinforcing cloth, test steel sheet 10 and fibre reinforcing cloth's collaborative performance promptly. Moreover, after the test steel plate 10 is damaged, one test steel plate 10 is reinstalled on the clamping assembly 30, and the installation structure is simple and convenient, and time and labor are saved.
The utility model discloses in, testing arrangement still includes testing arrangement, testing arrangement includes reaction frame 71, jack 72 and force sensor 73, reaction frame 71 fixed mounting is on the land, jack 72 fixed mounting is on reaction frame 71, this jack 72 is current conventional punching jack, and the second end of one of them tensioning screw 20 on the test piece 100 passes reaction frame 71, and be fixed in reaction frame 71 through lock nut on, the second end of another tensioning screw 20 passes reaction frame 71 in proper order, force sensor 73 and jack 72, and the second end tip is fixed in on reaction frame 71 through lock nut, and jack 72, two tensioning screw 20 and force sensor 73 are in on the same axis. The jack 72 is used for applying a tensile force to the clamped test steel plate 10, namely, applying a prestress to the test steel plate 10; the force sensor 73 is used to measure the magnitude of the pre-stressing force.
Further, the testing device further comprises a display screen with a control chip, the output end of the force sensor 73 is electrically connected with the input end of the control chip, and the display screen is used for displaying data detected by the force sensor 73. Wherein, the control chip is the conventional chip.
The test process of the test device is as follows: firstly, a test steel plate 10 is installed on a test device, then, the pressure applied to the two tensioning screws 20 by a reaction frame is adjusted by adjusting the relative positions of the two tensioning screws 20 and the corresponding adjusting threaded holes 41 respectively, namely, the tensioning force of the two tensioning screws 20 is adjusted, so that the prestress applied to the test steel plate 10 is adjusted, then, the initial prestress of the test steel plate 10 is measured by a force sensor 73, then, tensioning is carried out by a jack 72 until the test steel plate 10 attached with fiber reinforced cloth is pulled out, and meanwhile, the force sensor 73 measures the current tension force; and then replacing the damaged test steel plate, and repeating the process, wherein the initial prestress is changed in the repeating process, so that the cooperative working performance of the test steel plate 10 and the fiber reinforced cloth under different prestress levels of the test steel plate 10 can be obtained. The tester can check the initial prestress and the current stretching force after multiple tests on the display screen, wherein the larger the value measured by the force sensor 73 is, the better the cooperative work performance of the test steel plate 10 and the fiber reinforced cloth is.
The utility model discloses in still provide a test steel sheet synergy property test's test device's method, including following step:
a1: the test steel plate 10 is installed on the test device, two ends of the same test steel plate 10 are correspondingly clamped between the positive clamping plate and the negative clamping plate 50 which are matched with each other, first ends of the two tensioning screws 20 are respectively screwed into the adjusting threaded holes 41 of the corresponding positive clamping plate 40, second ends of the two tensioning screws 20 are inserted on the reaction frame 71, second ends of the two tensioning screws 20 are respectively fixedly connected to the reaction frame 71 through locking nuts, and the two tensioning screws 2 are tensioned through the pressure exerted on the two tensioning screws 2 by the reaction frame 71, so that prestress is exerted on the test steel plate;
a2: setting a preset value which is the artificially set prestress applied to the test steel plate 10, then adjusting the prestress applied to the test steel plate by adjusting the relative positions of the two tensioning screws 20 and the corresponding adjusting threaded holes 41 respectively, and measuring the prestress applied to the test steel plate by adopting a force sensor;
a3: when the value measured by the force sensor is equal to the preset value, the fiber reinforced cloth is attached to the middle of the surface of the test steel plate 10 and wound on the test steel plate 10;
a4: stretching the test steel plate 10 attached with the fiber reinforced cloth until the test steel plate 10 attached with the fiber reinforced cloth is pulled to be damaged, and measuring the stretching force at the moment by using a force sensor;
a5: the test steel plate in the step A1 is replaced, and the steps A2-A5 are repeated, so that the cooperative working performance of the test steel plate 10 and the fiber reinforced cloth under different prestress levels can be obtained.
It should be noted that, when multiple sets of tests are performed, the preset values in step a2 are different values, and the preset values are set according to actual test conditions.
The utility model discloses in, test piece 100 stretches through jack 72, and test piece 100 measures prestressing force size and tensile force size through force sensor 73. The jack 72 and the force sensor 73 are respectively mounted on the reaction frame 71. And after the second end of one of the tension screws 20 is inserted into the reaction frame 71, the second end is inserted into the force sensor 73 and the jack 72 in sequence, and then is fixedly connected with the lock nut in the step a 1.
The utility model relates to a test steel sheet synergy performance test's test device's method, the prestressing force size accessible of test steel sheet adjust two straining screw respectively with two adjust the relative position between the screw hole 41, adjust and apply for the prestressing force size of test steel sheet 10, stretch through pasting the test steel sheet that is equipped with the fibre reinforcement cloth afterwards to this tensile force size when obtaining the test steel sheet that is equipped with the fibre reinforcement cloth and is pulled bad, thereby obtain the test steel sheet and the fibre reinforcement cloth synergy tension performance of outer subsides under different prestressing force states, test method is simple.
In addition, the testing device not only provides the required prestress for the test steel plate 10, but also does not influence other test operations on the test steel plate 10 externally attached with the fiber reinforced cloth, and after other tests are completed, the test steel plate 10 can be stretched through a jack to be described below, so that the mechanical property of the test steel plate 10 attached with the fiber reinforced cloth after the test can be tested.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should belong to the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a test device of test steel sheet collaborative capability test which characterized in that: including two straining screw and be used for pressing from both sides two centre gripping subassemblies of establishing the test steel sheet, two the centre gripping subassembly all including be used for mutually supporting in order with test steel sheet presss from both sides positive splint and the negative splint of establishing, with the test steel sheet is by two when the centre gripping subassembly presss from both sides the length direction of test steel sheet does test device's is horizontal, two set up respectively on the positive splint along transverse arrangement's regulation screw hole, two adjust the screw hole respectively with a pair of screw cooperation of straining screw, wherein, two the centre gripping subassembly all is provided with the confession on the fastening structure of the both ends fastening of test steel sheet.
2. The test apparatus for testing a synergy property of a steel plate according to claim 1, characterized in that: the first ends of the two tensioning screws are respectively in threaded fit with the corresponding adjusting threaded holes.
3. The test apparatus for testing a synergy property of a steel plate according to claim 1 or 2, characterized in that: when the test steel plate is clamped by the two clamping assemblies, the axis of the adjusting threaded hole is positioned on the extending surface of the test steel plate.
4. The test apparatus for testing a synergy property of a steel plate according to claim 3, characterized in that: in the same clamping assembly, the positive clamping plate and the negative clamping plate are in lap joint and then are integrally in a square shape or a cylindrical shape.
5. The test apparatus for testing a synergy property of a steel plate according to claim 1 or 2, characterized in that: the two positive clamping plates respectively comprise a first bearing platform and a second bearing platform, the first bearing platform and the second bearing platform are connected and are L-shaped in the same positive clamping plate, the height of the first bearing platform is larger than that of the second bearing platform, and the adjusting threaded hole is formed in the first bearing platform.
6. The test apparatus for testing a synergy property of a steel plate according to claim 5, characterized in that: two the negative splint all include with first cushion cap lapped first butt platform and with second cushion cap lapped second butt platform, it is same in the negative splint, first butt platform with second butt platform is connected and is the L style of calligraphy, just first butt platform highly be less than the height of second butt platform, just the one end clamp of test steel sheet is located the second cushion cap with between the second butt platform.
7. The test apparatus for testing a synergy property of a steel plate according to claim 6, characterized in that: two fastening structure all includes first fastener, first through-hole, steel sheet through-hole and third screw hole, two first fastener all includes the second bolt, and is same in the centre gripping subassembly, first through-hole sets up in the second butt bench, the steel sheet through-hole sets up in one of test steel sheet is served, the third screw hole sets up on the second cushion cap, the third screw hole with second bolt screw fit, and, the one end clamp of test steel sheet is established cooperateing positive splint with during between the negative splint, first through-hole the steel sheet through-hole with the third screw hole corresponds each other, just the second bolt is inserted in proper order and is located first through-hole the steel sheet through-hole with in the third screw hole.
8. The test apparatus for testing a synergy property of a steel plate according to claim 6, characterized in that: two fastening structure all still includes second fastener, first screw hole and second screw hole, two the second fastener all includes first bolt, and is same in the centre gripping subassembly, first screw hole set up in on the first cushion cap, just the second screw hole not with corresponding adjust the screw hole intercommunication, matched with positive splint with during the negative splint overlap joint, first screw hole with the second screw hole corresponds each other, just first bolt screw in proper order in first screw hole and the second screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920365848.2U CN209894598U (en) | 2019-03-21 | 2019-03-21 | Test device for testing cooperative performance of steel plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920365848.2U CN209894598U (en) | 2019-03-21 | 2019-03-21 | Test device for testing cooperative performance of steel plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813604A (en) * | 2019-03-21 | 2019-05-28 | 华侨大学 | Test the experimental rig and its method of the test of steel plate synergisticing performance |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813604A (en) * | 2019-03-21 | 2019-05-28 | 华侨大学 | Test the experimental rig and its method of the test of steel plate synergisticing performance |
| CN109813604B (en) * | 2019-03-21 | 2024-01-05 | 华侨大学 | Test device and method for testing synergistic performance of steel plates |
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