CN109187214B - A girder steel bearing capacity strength test machine for room is built - Google Patents
A girder steel bearing capacity strength test machine for room is built Download PDFInfo
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- CN109187214B CN109187214B CN201811132644.0A CN201811132644A CN109187214B CN 109187214 B CN109187214 B CN 109187214B CN 201811132644 A CN201811132644 A CN 201811132644A CN 109187214 B CN109187214 B CN 109187214B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0264—Beam
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- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a steel beam bearing capacity strength testing machine for building construction, which comprises a first supporting seat, a case, a base and a second supporting seat, wherein grooves are uniformly formed in two sides of the top of the base, sliding grooves are formed in the inner wall of the base below the grooves, sliding seats are arranged between the sliding grooves, stand columns are arranged at two ends of the top of each sliding seat in each groove, the top of each stand column is provided with the first supporting seat, the center of the top of the case is provided with a hydraulic telescopic rod, and the output end of the hydraulic telescopic rod is provided with the second supporting seat. According to the invention, the first supporting seat, the case, the base and the second supporting seat are arranged, the fixed plates are arranged on the fixed plates at two ends of the tops of the first supporting seat and the second supporting seat through the electric telescopic rods, the elastic supporting pads are arranged on the fixed plates far away from the electric telescopic rods, so that the elastic tension force during fixing between the fixed plates is increased through the elastic supporting pads, the steel beam is fixed by the device conveniently, and the device is convenient to use.
Description
Technical Field
The invention relates to the technical field of steel beam test equipment, in particular to a steel beam bearing capacity strength tester for house construction.
Background
The steel beam refers to a beam made of steel, a crane beam and a working platform beam in a factory building, a floor beam in a multi-storey building, purlins in a roof structure and the like, and can be a common material in building construction, and is an important building material for providing the safety of a house, so the bearing capacity strength of the steel beam must reach the standard.
Current girder steel all need carry out bearing capacity intensity detection to it before using, current girder steel strength testing machine can't test the girder steel of different length, can't test the girder steel of different grade type, the suitability is not good, current girder steel test equipment is not convenient for be applicable to different building sites in addition, the use of device of not being convenient for, current strength test device can't test its bearing capacity fast simultaneously, can't read the bearing capacity intensity of girder steel fast, the use of device of not being convenient for.
Disclosure of Invention
The invention aims to provide a steel beam bearing capacity strength testing machine for a house building, which aims to solve the problems that steel beams with different lengths cannot be tested, steel beams with different types cannot be tested and the applicability is poor in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a steel beam bearing capacity strength testing machine for house construction comprises a first supporting seat, a machine case, a base and a second supporting seat, universal wheels are evenly arranged at two ends of the bottom of the base, telescopic bases are evenly arranged at two sides of the base between the universal wheels, supporting legs are arranged at the bottom of each telescopic base, the machine case is arranged in the center of the top of the base, a touch display screen is arranged at one side of the machine case, a PLC (programmable logic controller) is arranged at the top end of the inner part of the machine case, the touch display screen is electrically connected with the PLC through a lead, a driving motor is arranged at the bottom end of the inner part of the machine case below the PLC, the driving motor is electrically connected with the PLC through a lead, the output end of the driving motor extends to the inner part of the base and is fixedly connected with the bottom end of the inner part of the base, a cam turntable is arranged at the output end of, the two sides of the top of the base are uniformly provided with grooves, the inner wall of the base below the grooves is provided with chutes, the inside of the base between the two chutes at the same end is provided with a sliding seat in a sliding way through a sliding block, the center of one side of the sliding seat is hinged and fixed with the other end of a connecting rod, the two ends of the top of the sliding seat inside the grooves are provided with stand columns, the tops of 2 stand columns at the same end are provided with first support seats, the center of the top of the case is provided with a hydraulic telescopic rod, the output end of the hydraulic telescopic rod is provided with a second support seat, the two ends of the tops of the first support seat and the second support seat are provided with fixed plates, the center of one side of the fixed plates is provided with an electric telescopic rod, the output end of the electric telescopic rod is provided with a fixed plate, the top of the fixed plate above the first, pressure sensor is installed at the central authorities at second supporting seat top, pressure sensor's output and PLC controller's input electric connection, and the infrared receiver is all installed at the top at second supporting seat top fixed plate both ends, and infrared receiver all passes through wire and PLC controller electric connection.
Preferably, the first supporting seat is symmetrically arranged relative to the second supporting seat.
Preferably, the elastic supporting pad is all installed to one side that electric telescopic handle was kept away from to the fixed plate, and the fixed plate all constitutes fixed bearing structure through the elastic supporting pad, and constitutes through electric telescopic handle between fixed plate and the fixed plate and adjust the structure.
Preferably, the infrared transmitter and the infrared receiver are matched with each other.
Preferably, the sliding groove and the sliding block are matched with each other, the sliding seat forms a sliding structure through the sliding groove and the sliding block, and the upright post and the groove are matched with each other.
Preferably, locking bolts are installed on one side of the telescopic base, and anti-slip pads are installed at the bottoms of the supporting legs.
Compared with the prior art, the invention has the beneficial effects that: the steel beam bearing capacity strength testing machine for the house building is provided with a first supporting seat, a machine box, a base and a second supporting seat, wherein telescopic bases are uniformly arranged on two sides of the base, supporting legs are arranged at the bottoms of the telescopic bases, locking bolts are arranged on one sides of the telescopic bases, anti-skidding pads are arranged at the bottoms of the supporting legs, the height of the telescopic bases can be conveniently adjusted through the locking bolts, the use height of the supporting legs can be conveniently adjusted, the device can be conveniently used on different foundations of a building site, the anti-skidding performance of the supporting legs can be conveniently increased through the anti-skidding pads, the device can be conveniently used, a driving motor is arranged at the bottom end of the inner part of the machine box at the top of the base, the output end of the driving motor extends into the inner part of the base and is provided with a cam turntable together with the inner part of the base, a sliding seat is, the two ends of the top of the sliding seat in the groove are respectively provided with a first supporting seat through the top of the upright post, the cam rotating disc is driven to rotate by a driving motor, so that the connecting rod drives the sliding seats to perform linkage adjustment, a sliding block can slide in the sliding groove conveniently, the position between the sliding seats can be adjusted conveniently, the upright post can be adjusted conveniently at the position in the groove, the using distance between the two first supporting seats can be adjusted conveniently, a device can fix steel beams with different lengths conveniently, the applicability of the device can be increased conveniently, the device can be used conveniently, the center of the top of the case is provided with a second supporting seat through a hydraulic telescopic rod, the first supporting seats are symmetrically arranged relative to the second supporting seat, the steel beams can be placed between the first supporting seat and the second supporting seat conveniently, the steel beams are subjected to an extrusion test through the second supporting seat, and one sides of fixing plates at the two ends, the side of the fixed plate, which is far away from the electric telescopic rod, is provided with the elastic supporting pads, so that the elastic tension when the fixed plate is fixed between the fixed plates can be increased through the elastic supporting pads, the steel beam can be fixed by a device conveniently, and the device can be used conveniently, the top of the fixed plate above the first supporting seat, which is close to one end of the second supporting seat, is provided with the infrared transmitter, the center of the top of the second supporting seat is provided with the pressure sensor, and the tops of the two ends of the fixed plate above the second supporting seat are provided with the infrared receivers, so that when the device tests the bearing capacity of the steel beam, the second supporting seat is driven to ascend through the hydraulic telescopic rod, when the steel beam is deformed due to stress extrusion, and the infrared receivers can not receive the signals of the red jadeite transmitters, the PLC controller converts the pressure signals, the use of the device is facilitated.
Drawings
FIG. 1 is a schematic diagram of the testing structure of the apparatus of the present invention;
FIG. 2 is a schematic cross-sectional view of the apparatus of the present invention;
FIG. 3 is a schematic top view of the base of the present invention;
fig. 4 is a block diagram of the system of the present invention.
In the figure: 1. a first support base; 2. a column; 3. a chassis; 4. a base; 5. an electric telescopic rod; 6. a fixing plate; 7. an elastic support pad; 8. a fixing plate; 9. a hydraulic telescopic rod; 10. a touch display screen; 11. a universal wheel; 12. an infrared emitter; 13. an infrared receiver; 14. a pressure sensor; 15. a second support seat; 16. a PLC controller; 17. a drive motor; 18. a sliding seat; 19. a chute; 20. a connecting rod; 21. a telescopic base; 22. a cam carousel; 23. supporting legs; 24. a slider; 25. and (4) a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an embodiment of the present invention is shown: a steel beam bearing capacity strength testing machine for a house building comprises a first supporting seat 1, a machine case 3, a base 4 and a second supporting seat 15, universal wheels 11 are uniformly installed at two ends of the bottom of the base 4, telescopic bases 21 are uniformly installed at two sides of the base 4 between the universal wheels 11, supporting legs 23 are installed at the bottoms of the telescopic bases 21, locking bolts are installed at one sides of the telescopic bases 21, anti-skidding pads are installed at the bottoms of the supporting legs 23, the height of the telescopic bases 21 can be conveniently adjusted through the locking bolts, the using height of the supporting legs 23 can be conveniently adjusted, the device can be conveniently used on different foundations of a building site, the anti-skidding performance of the supporting legs 23 can be conveniently increased through the anti-skidding pads, the machine case 3 is installed in the center of the top of the base 4, a touch display screen 10 is installed at one side of the machine case 3, a PLC (programmable logic controller) 16 is, the touch display screen 10 is electrically connected with the PLC 16 through a wire, a driving motor 17 is installed at the bottom end inside the case 3 below the PLC 16, the model of the driving motor 17 can be Y160M1-2, the driving motor 17 is electrically connected with the PLC 16 through a wire, the output end of the driving motor 17 extends into the base 4 and is fixedly connected with the bottom end inside the base 4, a cam turntable 22 is installed at the output end of the driving motor 17 inside the base 4, both ends of the top of the cam turntable 22 are hinged with connecting rods 20, both sides of the top of the base 4 are uniformly provided with grooves 25, the inner wall of the base 4 below the grooves 25 is provided with sliding grooves 19, a sliding seat 18 is slidably installed inside the base 4 between the two sliding grooves 19 at the same end through a sliding block 24, the center of one side of the sliding seat 18 is hinged and fixed with the other end of the connecting rod 20, both ends of the top of the sliding seat 18 inside the groove 25 are provided with upright columns 2, the top parts of 2 upright posts 2 at the same end are respectively provided with a first supporting seat 1, a sliding groove 19 and a sliding block 24 are mutually matched, a sliding seat 18 forms a sliding structure through the sliding groove 19 and the sliding block 24, the upright posts 2 and a groove 25 are mutually matched, a cam rotating disc 22 is conveniently driven to rotate through a driving motor 17, so that a connecting rod 20 drives the sliding seat 18 to perform linkage adjustment, the sliding block 24 is convenient to slide in the sliding groove 19, the position between the sliding seats 18 is convenient to adjust, the upright posts 2 are convenient to adjust in the groove 25, the use distance between the two first supporting seats 1 is convenient to adjust, steel beams with different lengths are convenient to fix by the device, the applicability of the device is convenient to increase, the device is convenient to use, a hydraulic telescopic rod 9 is arranged in the center of the top part of a case 3, the output end of the hydraulic telescopic rod 9 is provided with a second supporting, the steel beam is convenient to place between the first supporting seat 1 and the second supporting seat 15, the steel beam is subjected to an extrusion test through the second supporting seat 15, the device is convenient to use, fixing plates 8 are respectively arranged at two ends of the tops of the first supporting seat 1 and the second supporting seat 15, an electric telescopic rod 5 is respectively arranged in the center of one side of each fixing plate 8, fixing plates 6 are respectively arranged at the output ends of the electric telescopic rods 5, elastic supporting pads 7 are respectively arranged at one sides, far away from the electric telescopic rods 5, of the fixing plates 6, the fixing plates 6 respectively form a fixing supporting structure through the elastic supporting pads 7, an adjusting structure is formed between the fixing plates 6 and the fixing plates 8 through the electric telescopic rods 5, the elastic tension when the fixing plates 6 are fixed through the elastic supporting pads 7 is convenient, the steel beam is convenient to fix through the device, the device is convenient to use, and the infrared emitter 12 is respectively, the type of the infrared emitter 12 can be 3AWMC06A infrared emitter, the infrared emitter 12 is electrically connected with the PLC controller 16 through a lead, the center of the top of the second supporting seat 15 is provided with the pressure sensor 14, the type of the pressure sensor 14 can be MPX10 pressure sensor, the output end of the pressure sensor 14 is electrically connected with the input end of the PLC controller 16, the tops of two ends of the fixing plate 8 above the second supporting seat 15 are respectively provided with the infrared receiver 13, the type of the infrared receiver 13 can be HYD2048H infrared receiver, the infrared receiver 13 is electrically connected with the PLC controller 16 through a lead, the infrared emitter 12 and the infrared receiver 13 are mutually matched, when the bearing capacity of the steel beam is tested, the second supporting seat 15 is driven to ascend through the hydraulic telescopic rod 9, when the steel beam is extruded and deformed, when the infrared receiver 13 cannot receive the signal of the red jadeite emitter 12, the PLC controller 16 converts the pressure signal generated by the pressure sensor 14 and the static pressure signal and then transmits the converted pressure signal to the touch display screen 10 for display, so that the device can test the bearing capacity of the steel beam and can be used conveniently.
The working principle is as follows: when the device is used, the device is moved to a construction site through the universal wheels 11, the telescopic base 21 is adjusted according to the terrain of the construction site, the use height of the supporting feet 23 is convenient to adjust, the device is convenient to use on different foundations of the construction site, the anti-skid property of the supporting feet 23 is increased through the anti-skid pads, the sliding generated in the device test is convenient to reduce, the device is convenient to use, then the PLC 16 controls the driving motor 17 to rotate according to the length of the steel beam, the driving motor 17 drives the cam turntable 22 to rotate, the connecting rod 20 drives the sliding seats 18 to perform linkage adjustment, the sliding blocks 24 are convenient to slide in the sliding grooves 19, the position between the sliding seats 18 is convenient to adjust, the position of the upright post 2 in the groove 25 is convenient to adjust, the use distance between the two first supporting seats 1 is convenient to adjust, the device is convenient to fix the steel beams with different lengths, and, use convenient to device, place the girder steel between first support 1 and second supporting seat 15 after that, it is flexible through PLC controller 16 control electric telescopic handle 5, make the device fix the girder steel, fixed completion back, pressure sensor 14 produces static pressure signal, it is flexible to control hydraulic telescopic handle 9 at last, make hydraulic telescopic handle 9 drive second supporting seat 15 rise, when producing after the girder steel atress extrusion reaches the biggest bearing capacity and warp, infrared receiver 13 can not receive the signal of red jadeite transmitter 12, PLC controller 16 produces the pressure signal that changes with pressure sensor 14 and converts the back with static pressure signal and transmits for touch-control display screen 10 and show, be convenient for the device carries out the bearing capacity test to the girder steel, be convenient for use of device.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a girder steel bearing capacity strength test machine for room is built, includes first supporting seat (1), quick-witted case (3), base (4) and second supporting seat (15), its characterized in that: the universal wheels (11) are uniformly arranged at two ends of the bottom of the base (4), the telescopic bases (21) are uniformly arranged at two sides of the base (4) between the universal wheels (11), the supporting legs (23) are arranged at the bottoms of the telescopic bases (21), the case (3) is arranged in the center of the top of the base (4), the touch display screen (10) is arranged at one side of the case (3), the PLC controller (16) is arranged at the top end of the inside of the case (3), the touch display screen (10) is electrically connected with the PLC controller (16) through a wire, the driving motor (17) is arranged at the bottom end of the inside of the case (3) below the PLC controller (16), the driving motor (17) is electrically connected with the PLC controller (16) through a wire, the output end of the driving motor (17) extends to the inside of the base (4) and is fixedly connected with the bottom end of the inside of the base (, the output end of a driving motor (17) in the base (4) is provided with a cam turntable (22), two ends of the top of the cam turntable (22) are hinged with connecting rods (20), two sides of the top of the base (4) are uniformly provided with grooves (25), the inner wall of the base (4) below the grooves (25) is provided with sliding grooves (19), a sliding seat (18) is slidably arranged in the base (4) between the two sliding grooves (19) at the same end through a sliding block (24), the center of one side of the sliding seat (18) is hinged and fixed with the other end of the connecting rod (20), two ends of the top of the sliding seat (18) in the groove (25) are provided with stand columns (2), the tops of 2 stand columns (2) at the same end are provided with first supporting seats (1), the center of the top of the case (3) is provided with a hydraulic telescopic rod (9), the output end of the hydraulic telescopic rod (9) is provided with a second supporting seat (, the two ends of the tops of the first supporting seat (1) and the second supporting seat (15) are respectively provided with a second fixing plate (8), the center of one side of the second fixing plate (8) is respectively provided with an electric telescopic rod (5), the output end of the electric telescopic rod (5) is respectively provided with a first fixing plate (6), and the top of one end of the second fixed plate (8) above the first supporting seat (1) close to the second supporting seat (15) is provided with an infrared emitter (12), the infrared emitter (12) is electrically connected with a PLC (programmable logic controller) controller (16) through a lead, a pressure sensor (14) is arranged at the center of the top of the second supporting seat (15), the output end of the pressure sensor (14) is electrically connected with the input end of a PLC (16), and infrared receiver (13) are all installed at the top at second fixed plate (8) both ends in second supporting seat (15) top, and infrared receiver (13) all pass through wire and PLC controller (16) electric connection.
2. The steel beam bearing capacity strength testing machine for the house building according to claim 1, wherein: the first supporting seat (1) is symmetrically arranged relative to the second supporting seat (15).
3. The steel beam bearing capacity strength testing machine for the house building according to claim 1, wherein: elastic supporting pads (7) are installed on one side, far away from electric telescopic handle (5), of first fixed plate (6), and first fixed plate (6) all constitute fixed bearing structure through elastic supporting pads (7), and constitute through electric telescopic handle (5) between first fixed plate (6) and second fixed plate (8) and adjust the structure.
4. The steel beam bearing capacity strength testing machine for the house building according to claim 1, wherein: the infrared transmitter (12) and the infrared receiver (13) are matched with each other.
5. The steel beam bearing capacity strength testing machine for the house building according to claim 1, wherein: the sliding groove (19) and the sliding block (24) are matched with each other, the sliding seat (18) forms a sliding structure through the sliding groove (19) and the sliding block (24), and the upright post (2) and the groove (25) are matched with each other.
6. The steel beam bearing capacity strength testing machine for the house building according to claim 1, wherein: locking bolts are installed on one side of the telescopic base (21), and anti-skid pads are installed at the bottoms of the supporting legs (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811132644.0A CN109187214B (en) | 2018-09-27 | 2018-09-27 | A girder steel bearing capacity strength test machine for room is built |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811132644.0A CN109187214B (en) | 2018-09-27 | 2018-09-27 | A girder steel bearing capacity strength test machine for room is built |
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| Publication Number | Publication Date |
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| CN109187214A CN109187214A (en) | 2019-01-11 |
| CN109187214B true CN109187214B (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811132644.0A Active CN109187214B (en) | 2018-09-27 | 2018-09-27 | A girder steel bearing capacity strength test machine for room is built |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157342B (en) * | 2020-02-26 | 2020-08-14 | 哈尔滨学院 | Pressure controller |
| CN113340637B (en) * | 2021-06-09 | 2022-09-13 | 中国建筑第二工程局有限公司 | A girder steel bearing capacity strength test machine for room is built |
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| GB722528A (en) * | 1951-12-19 | 1955-01-26 | John Selwyn Caswell | A hydraulic uniform loader for testing beams and slabs |
| JP2004109050A (en) * | 2002-09-20 | 2004-04-08 | Kumagai Gumi Co Ltd | Damage degree estimation method for reinforcement member of structure |
| UA79634C2 (en) * | 2005-04-11 | 2007-07-10 | Tetiana Oleksandriv Krychevska | Method for testing steel-fiberboard beams |
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| CN105738205A (en) * | 2016-03-29 | 2016-07-06 | 河南省特种设备安全检测研究院 | Test device for crane girder |
| CN206906142U (en) * | 2017-06-29 | 2018-01-19 | 天津宝润真空设备有限公司 | Plant equipment crossbeam bend detection means |
| CN207300728U (en) * | 2017-10-18 | 2018-05-01 | 三峡大学 | Beams of concrete three point bending test auxiliary device |
| CN207336215U (en) * | 2017-07-31 | 2018-05-08 | 浙江德义建筑设备有限公司 | A kind of bend test of metal materials fixture |
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2018
- 2018-09-27 CN CN201811132644.0A patent/CN109187214B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB722528A (en) * | 1951-12-19 | 1955-01-26 | John Selwyn Caswell | A hydraulic uniform loader for testing beams and slabs |
| JP2004109050A (en) * | 2002-09-20 | 2004-04-08 | Kumagai Gumi Co Ltd | Damage degree estimation method for reinforcement member of structure |
| UA79634C2 (en) * | 2005-04-11 | 2007-07-10 | Tetiana Oleksandriv Krychevska | Method for testing steel-fiberboard beams |
| CN203965259U (en) * | 2014-06-16 | 2014-11-26 | 陕西钢铁集团有限公司 | An a kind of roll-type bend testing apparatus |
| CN105738205A (en) * | 2016-03-29 | 2016-07-06 | 河南省特种设备安全检测研究院 | Test device for crane girder |
| CN206906142U (en) * | 2017-06-29 | 2018-01-19 | 天津宝润真空设备有限公司 | Plant equipment crossbeam bend detection means |
| CN207336215U (en) * | 2017-07-31 | 2018-05-08 | 浙江德义建筑设备有限公司 | A kind of bend test of metal materials fixture |
| CN207300728U (en) * | 2017-10-18 | 2018-05-01 | 三峡大学 | Beams of concrete three point bending test auxiliary device |
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| CN109187214A (en) | 2019-01-11 |
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