A performance detection device and detection method for a composite beam with corrugated steel webs

Abstract

The present invention provides a performance detection device and a detection method for a composite beam with a corrugated steel web, belonging to the technical field of composite beam performance detection. The performance detection device for a composite beam with a corrugated steel web comprises a base, a composite beam, a reaction force device and two placement frames installed on the base, the reaction force device comprises a plurality of equidistantly arranged mounting beams and a cross beam installed on the inner side of each mounting beam, and also comprises a moving mechanism, an adjusting mechanism and a detection mechanism. When the present invention performs performance detection on the composite beam, a first driving motor and a second driving motor on the same side are controlled by a controller to rotate, so that a loading device and a fixing part on the same side move synchronously, simulating the state of two-way driving of a vehicle in an actual situation, realizing pressure detection on different positions on both sides of the composite beam, and improving the authenticity of the detection result.

Description

Technical Field

[0001] The invention belongs to the technical field of composite beam performance detection, and in particular relates to a performance detection device and a detection method for a composite beam with a corrugated steel web. Background Art

[0002] The corrugated steel web composite beam uses corrugated steel webs to replace the webs in concrete box beams. By combining steel and concrete materials together, the corrugated steel web composite beam can give full play to the shear resistance of steel plates and the compressive resistance of concrete, thereby improving the strength, stability and material utilization of the bridge structure.

[0003] Chinese patent application number 202210541334.4 discloses a loading test device and test method for the negative bending moment zone of a steel plate composite beam, which belongs to the field of loading test technology, and includes a load-bearing plate, the top of which is connected with a reaction force combination, a hydraulic power combination, a fixed support combination and a movable support combination; the reaction force combination includes a crossbeam 1, a column 1 and a base, both sides of the crossbeam 1 are connected with a column 1, and the bottom end of the column 1 is connected with a base; the fixed support combination includes a pier and a fixed support connected to the top of the pier, the movable support combination includes a pier and a movable support connected to the top of the pier, the pier includes a crossbeam 2, a column 2 and a bottom plate, the crossbeam 2 is connected with two columns 2, and the bottom end of the column 2 is connected with a bottom plate, the fixed support includes a support upper plate, a support lower plate and a pin shaft 1. The invention can limit the test beam to be tested through the design of the movable support combination and the fixed support combination, so that it is constrained to avoid shaking, and can meet the bending needs of the test beam. However, when the test beam is loaded and tested, the position of the loading device remains unchanged. In actual situations, the vehicles on the bridge move in both directions, which is different from the loading device, resulting in a lack of authenticity in the test results of the test beam.

[0004] Therefore, a performance detection device and a detection method for a corrugated steel web composite beam that can simulate actual conditions are provided. Summary of the invention

[0005] The purpose of the present invention is to provide a performance detection device and method for a corrugated steel web composite beam, aiming to solve the problem that the position of the loading device remains unchanged, which is different from the actual situation and leads to the lack of authenticity of the detection results of the test beam.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A performance detection device for a composite beam with a corrugated steel web, comprising a base, a composite beam, a reaction device and two placement frames installed on the base, wherein the reaction device comprises a plurality of equally spaced mounting beams and a cross beam installed inside each of the mounting beams, and further comprising:

[0008] A moving mechanism, wherein there are two moving mechanisms, and both are arranged at the bottom of the plurality of beams, and a loading device is arranged at the bottom of each moving mechanism, and the moving mechanism is used to move the position where the loading device applies a load to the composite beam;

[0009] An adjusting mechanism, wherein the adjusting mechanism is multiple and is respectively arranged on the top of each of the placing racks, and the adjusting mechanism is used to adjust the distance between the two moving mechanisms;

[0010] A detection mechanism, wherein there are two detection mechanisms, and both are arranged between the two placement racks, and the detection mechanism is used to perform performance detection on the composite beam;

[0011] The moving mechanism comprises a guide rail fixedly connected to the bottom of each of the cross beams, two mounting plates are slidably connected to the bottom of the plurality of guide rails, a first mounting frame is fixedly connected to the bottom of each mounting plate, a first reciprocating screw rod is provided on the inner side of the bottom of each of the first mounting frames, a first slider slidably connected to the corresponding first mounting frame is threadedly connected to the outer wall of each of the first reciprocating screw rods, and a first driving motor driving the corresponding first reciprocating screw rod to rotate is provided at one end of each of the first mounting frames;

[0012] The adjustment mechanism includes a limit frame fixedly connected to the top of each placement frame, both ends of each limit frame are fixedly connected with an adjustment bin, the interior of each adjustment bin is slidably connected with a first piston plate, each first piston plate is fixedly connected with an extrusion piece slidably connected to the adjustment bin and the limit frame on one side close to the limit frame, a first elastic piece is connected between the side of each first piston plate away from the limit frame and the inner wall of the adjustment bin, one end of each extrusion piece away from the first piston plate is located on the inner side of the limit frame, and the top is wedge-shaped, the combined beam can be placed on the inner side of the limit frame, the combined beam can extrude the extrusion piece and drive the first piston plate to move inside the corresponding adjustment bin.

[0013] Preferably, the loading device includes a hydraulic device fixedly connected to the bottom of each of the first sliding blocks, the bottom telescopic end of each of the hydraulic devices is fixedly connected to a second mounting frame, and the bottom inner side of each of the second mounting frames is rotatably connected to a rotating roller for applying load to the composite beam.

[0014] Preferably, the adjustment mechanism also includes a guide bin arranged at both ends of each mounting plate and fixedly connected to the mounting beam, each guide bin is slidably connected to a second piston plate inside, each second piston plate is fixedly connected to an extrusion rod passing through the guide bin on a side close to the mounting plate, each extrusion rod is fixedly connected to a connecting piece on one end away from the second piston plate, a second elastic piece is connected between each second piston plate on a side close to the mounting plate and an inner wall of the guide bin, and the second elastic piece is sleeved on the outer wall of the extrusion rod.

[0015] Preferably, the plurality of connecting parts are fixedly connected to the top of one of the mounting plates, the plurality of connecting parts on the other side of the different mounting beams are fixedly connected to the top of another mounting plate, and the two guide bins on the mounting beam on the same side are respectively connected to the interior of the two adjustment bins on that side through guide pipes.

[0016] Preferably, the detection mechanism includes two symmetrically arranged third mounting frames, both ends of each of the third mounting frames are fixedly connected to the two placement frames, a second reciprocating screw is provided on the inner side of each of the third mounting frames, the outer wall of each of the second reciprocating screws is threadedly connected to a second slider slidably connected to the corresponding third mounting frame, and one end of each of the third mounting frames is provided with a second drive motor that drives the corresponding second reciprocating screw to rotate.

[0017] Preferably, the top of each second sliding block is fixedly connected to a fixing part, a sliding groove is opened inside each fixing part, a third piston plate is slidably connected inside each sliding groove, a pressure sensor and a strain gauge sensor are provided on the top of each third piston plate, a ferromagnetic ring is fixedly connected to the bottom of each third piston plate, an electromagnetic ring is provided on the bottom inner wall of each sliding groove, and a third elastic part arranged on the inner side of the electromagnetic ring and the ferromagnetic ring is connected between the bottom of each third piston plate and the inner wall of the corresponding sliding groove.

[0018] Preferably, a controller is provided on one of the placement racks, and the loading device, the first drive motor, the second drive motor, the pressure sensor, the strain gauge sensor and the electromagnetic ring are all electrically connected to the controller.

[0019] A method for detecting performance of a composite beam with a corrugated steel web comprises the following steps:

[0020] S1: Place the composite beam at the inner center of the two limit frames;

[0021] S2: Control the hydraulic equipment to make the rotating roller contact with the composite beam and apply pressure to the composite beam;

[0022] S3: Control the two first drive motors to rotate in opposite directions, so that the loading devices on the two first reciprocating screws move relative to each other, simulating the state of a vehicle traveling in both directions in an actual situation;

[0023] S4: Control the two second driving motors to rotate, so that the two detection mechanisms and the corresponding loading devices move in the same direction to detect different positions of the composite beam;

[0024] S5: The controller processes the detection results of the pressure sensors and strain gauge sensors at different positions.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention arranges a moving mechanism and a detection mechanism. When the performance of the composite beam is detected, the controller controls the first drive motor and the second drive motor on the same side to rotate, so that the loading device and the fixing member on the same side move synchronously, and the pressure detection of different positions of the composite beam on the side is realized. The two first drive motors rotate in opposite directions, so that the loading devices on the two first reciprocating screws move relatively, thereby simulating the state of two-way driving of the vehicle in the actual situation, realizing the pressure detection of different positions on both sides of the composite beam, and improving the authenticity of the detection result.

[0027] By setting an adjustment mechanism, the present invention can adjust the position of the loading device by the width of the top plate and the bottom plate when the composite beam is placed upright or inverted. When the composite beam is placed upright, the two loading devices are located at the edge of the top plate of the composite beam, and when the composite beam is inverted, the two loading devices are located at the edge of the bottom plate of the composite beam. Thus, the distance between the two loading devices is adjusted by the width of the top plate and the bottom plate, thereby improving applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the flow guide tube of the present invention;

[0031] Figure 3 It is a structural schematic diagram of the detection mechanism of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the guide rail of the present invention;

[0033] Figure 5 It is a structural schematic diagram of the connecting piece and the mounting plate of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the mobile mechanism of the present invention;

[0035] Figure 7 It is a structural schematic diagram of the diversion bin of the present invention;

[0036] Figure 8 It is a schematic diagram of the structure of the loading device of the present invention;

[0037] Fig. 9 It is a structural schematic diagram of the regulating bin of the present invention;

[0038] Fig.10 It is a structural schematic diagram of the detection mechanism of the present invention;

[0039] Fig.11 It is a schematic diagram of the structure of the fixing member of the present invention;

[0040] Fig.12 It is a structural schematic diagram of the composite beam of the present invention;

[0041] Fig.13 It is a structural schematic diagram of the composite beam of the present invention in upright position;

[0042] Fig.14 It is a schematic diagram of the inverted structure of the composite beam of the present invention.

[0043] In the figure: 1, base; 2, composite beam; 21, top plate; 22, bottom plate; 23, corrugated steel web; 24, diaphragm; 25, prestressed steel bar; 3, reaction device; 31, mounting beam; 32, cross beam; 4, placement frame; 5, moving mechanism; 51, guide rail; 52, mounting plate; 53, first mounting frame; 54, first reciprocating screw rod; 55, first slider; 56, first driving motor; 6, loading device; 61, hydraulic equipment; 62, second mounting frame; 63, rotating roller; 7, adjustment mechanism; 71, limit frame; 72, adjustment bin; 73 , the first piston plate; 74, the extrusion member; 75, the first elastic member; 76, the guide chamber; 77, the second piston plate; 78, the extrusion rod; 79, the connecting member; 710, the second elastic member; 711, the guide tube; 8, the detection mechanism; 81, the third mounting bracket; 82, the second reciprocating screw rod; 83, the second slider; 84, the second drive motor; 85, the fixing member; 86, the slide groove; 87, the third piston plate; 88, the pressure sensor; 89, the strain gauge sensor; 810, the ferromagnetic ring; 811, the electromagnetic ring; 812, the third elastic member; 9, the controller. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Embodiment 1

[0046] When the test beam is loaded and tested, the position of the loading device remains unchanged. However, in actual situations, vehicles on the bridge move in both directions, which is different from the fact that the loading device remains unchanged. It is impossible to perform load tests on different positions of the test beam, resulting in a lack of authenticity in the test results of the test beam. In addition, the existing testing equipment is also set at the bottom of the test beam and cannot be moved. As a result, each time a test is performed at a different position, the staff needs to reposition and install it, which is inconvenient to use.

[0047] See also Figure 1 - Figure 6 A performance detection device for a composite beam with a corrugated steel web, comprising a base 1, a composite beam 2, a reaction device 3 and two placement frames 4 installed on the base 1, wherein the reaction device 3 comprises a plurality of equally spaced mounting beams 31 and a cross beam 32 installed inside each mounting beam 31, and further comprising:

[0048] Moving mechanisms 5, there are two moving mechanisms 5, and both are arranged at the bottom of the plurality of beams 32, and a loading device 6 is arranged at the bottom of each moving mechanism 5, and the moving mechanism 5 is used to move the loading device 6 to apply a load to the composite beam 2;

[0049] An adjusting mechanism 7, wherein the adjusting mechanism 7 is multiple and is respectively arranged on the top of each placement rack 4, and the adjusting mechanism 7 is used to adjust the distance between the two moving mechanisms 5;

[0050] There are two detection mechanisms 8 , and both are arranged between the two placement racks 4 . The detection mechanisms 8 are used to perform performance detection on the composite beam 2 .

[0051] The moving mechanism 5 includes a guide rail 51 fixedly connected to the bottom of each crossbeam 32, two mounting plates 52 are slidably connected to the bottom of the multiple guide rails 51, a first mounting frame 53 is fixedly connected to the bottom of each mounting plate 52, a first reciprocating screw rod 54 is provided on the inner side of the bottom of each first mounting frame 53, a first slider 55 slidably connected to the corresponding first mounting frame 53 is threadedly connected to the outer wall of each first reciprocating screw rod 54, and a first driving motor 56 that drives the corresponding first reciprocating screw rod 54 to rotate is provided at one end of each first mounting frame 53;

[0052] like Figure 8As shown, the loading device 6 includes a hydraulic device 61 fixedly connected to the bottom of each first slider 55, a second mounting frame 62 is fixedly connected to the bottom telescopic end of each hydraulic device 61, and a rotating roller 63 for applying load to the composite beam 2 is rotatably connected to the inner side of the bottom of each second mounting frame 62;

[0053] The rotation of the first driving motor 56 can drive the hydraulic device 61 corresponding to the bottom of the first sliding block 55 to move, and can make the rotating roller 63 rotate and move on the top of the composite beam 2.

[0054] like Fig.10 and Fig.11 As shown, the detection mechanism 8 includes two symmetrically arranged third mounting frames 81, both ends of each third mounting frame 81 are fixedly connected to the two placement frames 4, the inner side of each third mounting frame 81 is provided with a second reciprocating screw rod 82, the outer wall of each second reciprocating screw rod 82 is threadedly connected with a second slider 83 slidably connected to the corresponding third mounting frame 81, and one end of each third mounting frame 81 is provided with a second driving motor 84 that drives the corresponding second reciprocating screw rod 82 to rotate;

[0055] The top of each second slider 83 is fixedly connected to a fixing part 85, a sliding groove 86 is opened inside each fixing part 85, a third piston plate 87 is slidably connected inside each sliding groove 86, a pressure sensor 88 and a strain gauge sensor 89 are provided on the top of each third piston plate 87, a ferromagnetic ring 810 is fixedly connected to the bottom of each third piston plate 87, an electromagnetic ring 811 is provided on the bottom inner wall of each sliding groove 86, and a third elastic part 812 arranged on the inner side of the electromagnetic ring 811 and the ferromagnetic ring 810 is connected between the bottom of each third piston plate 87 and the inner wall of the corresponding sliding groove 86.

[0056] Under normal conditions, that is, when the electromagnetic ring 811 is not energized, the pressure sensor 88 and the strain gauge sensor 89 on the third piston plate 87 can be in close contact with the bottom of the composite beam 2 under the action of the third elastic member 812 for detection. When the electromagnetic ring 811 is energized to generate magnetic force, the ferromagnetic ring 810 can drive the third piston plate 87 to move in the direction of the electromagnetic ring 811 inside the slide groove 86 and engage with the electromagnetic ring 811, thereby squeezing the third elastic member 812 to cause it to contract.

[0057] The fixing member 85 and the loading device 6 are arranged in a one-to-one correspondence, that is, the pressure sensor 88 and the strain gauge sensor 89 on one fixing member 85 correspond to one loading device 6 .

[0058] According to the actual requirements of the detection performance, an ultrasonic detection device can be set on the top of the third piston plate 87 to detect the quality of the top plate 21 or the bottom plate 22 of the composite beam 2, that is, to determine whether cracks and the like occur, which can improve the effect of the performance detection of the composite beam 2. The ultrasonic detection equipment is a prior art and will not be described in detail here.

[0059] A controller 9 is provided on one of the placement racks 4. The loading device 6, the first drive motor 56, the second drive motor 84, the pressure sensor 88, the strain gauge sensor 89 and the electromagnetic ring 811 are all electrically connected to the controller 9. The controller 9 is also electrically connected to a display device. The controller 9 can control the first drive motor 56 and the second drive motor 84 on the same side to rotate in the same direction, so that the loading device 6 and the fixing member 85 on the same side can move in the same direction on the corresponding first reciprocating screw rod 54 and second reciprocating screw rod 82, that is, when the first reciprocating screw rod 54 on the same side rotates clockwise to move the loading device 6 forward, the second reciprocating screw rod 82 on the same side also rotates clockwise to move the fixing member 85 forward, and vice versa. The detection results of the pressure sensor 88 and the strain gauge sensor 89 can be fed back to the display device through the controller 9, which is convenient for professionals to observe. The controller 9 can control the amount of pressure applied by the loading device 6 to the composite beam 2.

[0060] like Fig.12 As shown, the composite beam 2 includes a top plate 21, a bottom plate 22, a corrugated steel web 23, a diaphragm 24 and prestressed steel bars 25. The loading device 6 can be a hydraulic cylinder. The composite beam 2 and the loading device 6 are both existing technologies and will not be described in detail here.

[0061] The controller 9 can control the two first drive motors 56 to rotate in opposite directions, so as to make the loading devices 6 on the two first reciprocating screws 54 move relative to each other, that is, when one moves to the left, the other moves to the right, and vice versa, thereby simulating the state of two-way driving of the vehicle in actual conditions.

[0062] In actual use, when the performance of the combined beam 2 is tested, the combined beam 2 is first placed on the inner side of the limit frame 71 on the two placement frames 4 by means of a crane or other equipment, and then the controller 9 controls the loading device 6 to make the rotating roller 63 contact the combined beam 2 and apply pressure. At this time, the first driving motor 56 and the second driving motor 84 on the same side can be controlled by the controller 9 to rotate, so that the loading device 6 and the fixing member 85 on the same side move in the same direction, so as to realize the pressure test on different positions of the combined beam 2 on this side. Whenever the fixing member 85 moves, the controller 9 can control the electromagnetic ring 811 inside the fixing member 85 on this side to be energized, so that the electromagnetic ring 811 generates magnetic force, which can make the ferromagnetic ring 81 0 moves in the direction of the electromagnetic ring 811 inside the slide groove 86 and is attracted to the electromagnetic ring 811, which can squeeze the third elastic member 812 and make the pressure sensor 88 and the strain gauge sensor 89 on the top of the third elastic member 812 enter the slide groove 86 and break away from the contact with the bottom of the combined beam 2, thereby avoiding direct movement and causing the combined beam 2 to wear the pressure sensor 88 and the strain gauge sensor 89, and facilitating movement. Therefore, through the relative movement of the two loading devices 6 and the synchronous movement of the loading device 6 and the fixing member 85 on the same side, pressure detection of different positions on both sides of the combined beam 2 is realized, simulating the actual state of two-way driving of the vehicle, and improving the authenticity of the detection result.

[0063] The two loading devices 6 are intermittently moved in order to ensure that the pressure sensor 88 and the strain gauge sensor 89 detect the performance of the composite beam 2 at that position by the dwell time in the state of simulating the bidirectional driving of the vehicle, so as to avoid inaccurate detection results caused by too fast movement.

[0064] The present invention, through the arrangement of the moving mechanism 5 and the detection mechanism 8, when the performance of the combined beam 2 is tested, controls the first drive motor 56 and the second drive motor 84 on the same side to rotate through the controller 9, so that the loading device 6 and the fixing member 85 on the same side move synchronously, thereby realizing the pressure detection of different positions of the combined beam 2 on that side. The two first drive motors 56 rotate in opposite directions, so that the loading devices 6 on the two first reciprocating screws 54 move relative to each other, thereby simulating the state of two-way driving of the vehicle in actual conditions, realizing the pressure detection of different positions on both sides of the combined beam 2, and improving the authenticity of the detection result.

[0065] Embodiment 2

[0066] On the basis of the above embodiments, the existing loading experiments all adopt the form of inverted test beam for measurement, which is inconsistent with the actual situation. The test beam cannot be placed upright for loading detection, and the test beam is often wide at the top and narrow at the bottom. When placed upright, the loading device 6 cannot automatically adjust the position, and the loading detection is performed on the edge of the test beam, which affects the results of the simulation test.

[0067] See also Figure 2 , Figure 3 and Fig. 9 The adjusting mechanism 7 includes a limiting frame 71 fixedly connected to the top of each placing frame 4, both ends of each limiting frame 71 are fixedly connected with an adjusting bin 72, the interior of each adjusting bin 72 is slidably connected with a first piston plate 73, and each first piston plate 73 is fixedly connected with an extrusion piece 74 slidably connected to the adjusting bin 72 and the limiting frame 71 on one side close to the limiting frame 71, and a first elastic piece 75 is connected between the side of each first piston plate 73 away from the limiting frame 71 and the inner wall of the adjusting bin 72, and one end of each extrusion piece 74 away from the first piston plate 73 is located on the inner side of the limiting frame 71, and the top is wedge-shaped, and the combined beam 2 can be placed on the inner side of the limiting frame 71, and the combined beam 2 can push the extrusion piece 74 and drive the first piston plate 73 to move inside the corresponding adjusting bin 72.

[0068] Under normal conditions, that is, when the composite beam 2 is not placed, the two extrusion members 74 on the same side of the limiting frame 71 are in contact with each other at one end away from the first piston plate 73, the first piston plate 73 is in contact with the inner wall of the side of the regulating chamber 72 close to the limiting frame 71, and the side of the first piston plate 73 away from the extrusion member 74 and the regulating chamber 72 are filled with hydraulic oil.

[0069] like Figure 7 As shown, the adjustment mechanism 7 also includes a guide bin 76 which is arranged at both ends of each mounting plate 52 and fixedly connected to the mounting beam 31. A second piston plate 77 is slidably connected inside each guide bin 76. A side of each second piston plate 77 close to the mounting plate 52 is fixedly connected to an extrusion rod 78 that penetrates the guide bin 76. An end of each extrusion rod 78 away from the second piston plate 77 is fixedly connected to a connecting piece 79. The extrusion rod 78 is sealingly and slidably connected to the guide bin 76. A second elastic piece 710 is connected between the side of each second piston plate 77 close to the mounting plate 52 and the inner wall of the guide bin 76. The second elastic piece 710 is sleeved on the outer wall of the extrusion rod 78.

[0070] In a normal state, that is, when the combined beam 2 is not placed, the second piston plate 77 contacts the inner wall of the guide chamber 76 away from the mounting plate 52 , and the connecting member 79 drives the mounting plate 52 to contact the inner side of the mounting beam 31 .

[0071] like Figure 2 As shown, multiple connecting members 79 on one side of different mounting beams 31 are fixedly connected to the top of one of the mounting plates 52, multiple connecting members 79 on the other side of different mounting beams 31 are fixedly connected to the top of another mounting plate 52, and the two guide chambers 76 on the same mounting beam 31 are respectively connected to the interior of the two adjustment chambers 72 on this side through the guide pipes 711.

[0072] It should be noted that when the composite beam 2 is placed upright, Fig.13As shown, the bottom plate 22 of the combined beam 2 is placed at the inner center of the limiting frame 71. Since the bottom plate 22 is narrow, the bottom plate 22 contacts the top wedge surface of the extrusion piece 74 during the placement process. The combined beam 2 can push the extrusion piece 74 to drive the first piston plate 73 to move a short distance inside the corresponding adjustment chamber 72. The first elastic member 75 is compressed, and the first piston plate 73 can squeeze a small amount of hydraulic oil inside the adjustment chamber 72, so that the hydraulic oil enters the corresponding adjustment chamber 72 through the guide pipe 711, so that the hydraulic oil inside the adjustment chamber 72 increases, and the second piston plate 77 is pushed to move inside the corresponding guide chamber 76, so that the two loading devices 6 can be located at the edge of the top plate 21 of the combined beam 2 for loading. Then, the two first drive motors 56 are started to rotate in opposite directions, so that the loading devices 6 on the two first reciprocating screws 54 move relative to each other, thereby simulating the state of two-way driving of the vehicle in the actual situation, and realizing the pressure detection of different positions on both sides of the top plate 21 of the combined beam 2.

[0073] When composite beam 2 is inverted, Fig.14 As shown, the top plate 21 of the composite beam 2 is placed at the inner center of the limiting frame 71. Since the top plate 21 is relatively wide, the top plate 21 can contact the top wedge surface of the extrusion member 74 during the placement process, and can push the extrusion member 74 to drive the first piston plate 73 to move a long distance inside the corresponding regulating chamber 72. The first elastic member 75 is compressed, and the first piston plate 73 can squeeze a large amount of hydraulic oil inside the regulating chamber 72, so that the hydraulic oil enters the corresponding regulating chamber 72 through the guide pipe 711, so that the hydraulic oil inside the regulating chamber 72 increases, and the second piston plate is pushed. 77 moves inside the corresponding guide bin 76, so that the two first mounting frames 53 can contact each other, and the two loading devices 6 can be located at the edge of the bottom plate 22 of the combined beam 2 for loading. Then, the two first drive motors 56 are started to rotate in opposite directions, so that the loading devices 6 on the two first reciprocating screw rods 54 move relative to each other, thereby simulating the state of two-way driving of the vehicle in actual conditions, and realizing pressure detection at different positions on both sides of the bottom plate 22 of the combined beam 2. At the same time, the two loading devices 6 can also be adjusted to overlap in the middle of the combined beam 2 to carry out a static load test.

[0074] The two overlapping loading devices 6 move in the same direction, and can perform static load tests at different positions on the bottom plate 22 of the composite beam 2. At this time, the two fixing members 85 drive the pressure sensor 88 and the strain gauge sensor 89 to move in the same direction as the two overlapping loading devices 6.

[0075] By setting the adjustment mechanism 7, the present invention can adjust the position of the loading device 6 by the width of the top plate 21 and the bottom plate 22 when the composite beam 2 is placed upright or inverted. When placed upright, the two loading devices 6 are located at the edge of the top plate 21 of the composite beam 2. When inverted, the two loading devices 6 are located at the edge of the bottom plate 22 of the composite beam 2. In this way, the distance between the two loading devices 6 can be adjusted by the width of the top plate 21 and the bottom plate 22, thereby improving applicability.

[0076] Embodiment 3

[0077] A method for detecting performance of a composite beam with a corrugated steel web comprises the following steps:

[0078] S1: placing the composite beam 2 at the inner center of the two limiting frames 71;

[0079] S2: Control the hydraulic device 61 to make the rotating roller 63 contact the composite beam 2 and apply pressure to the composite beam 2;

[0080] S3: Control the two first drive motors 56 to rotate in opposite directions, so that the loading devices 6 on the two first reciprocating screw rods 54 move relative to each other, simulating the state of bidirectional driving of the vehicle in actual conditions;

[0081] S4: Control the two second driving motors 84 to rotate, so that the two detection mechanisms 8 and the corresponding loading devices 6 move in the same direction to detect different positions of the composite beam 2;

[0082] S5: The controller 9 processes the detection results of the pressure sensors 88 and the strain gauge sensors 89 at different positions.

[0083] The pressure sensor 88 is used to detect the load of the composite beam 2, and the strain gauge sensor 89 is used to detect the deformation of the composite beam 2. The pressure sensor 88 and the strain gauge sensor 89 are both existing technologies and will not be described in detail here.

[0084] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A performance detection device for a composite beam with a corrugated steel web, comprising a base, a composite beam, a reaction device and two placement frames mounted on the base, wherein the reaction device comprises a plurality of equally spaced mounting beams and a cross beam mounted on the inner side of each mounting beam, characterized in that: Also includes: A moving mechanism, wherein there are two moving mechanisms, and both are arranged at the bottom of the plurality of beams, and a loading device is arranged at the bottom of each moving mechanism, and the moving mechanism is used to move the position where the loading device applies a load to the composite beam; An adjusting mechanism, wherein the adjusting mechanism is multiple and is respectively arranged on the top of each of the placing racks, and the adjusting mechanism is used to adjust the distance between the two moving mechanisms; A detection mechanism, wherein there are two detection mechanisms, and both are arranged between the two placement racks, and the detection mechanism is used to perform performance detection on the composite beam; The moving mechanism comprises a guide rail fixedly connected to the bottom of each of the cross beams, two mounting plates are slidably connected to the bottom of the plurality of guide rails, a first mounting frame is fixedly connected to the bottom of each mounting plate, a first reciprocating screw rod is provided on the inner side of the bottom of each of the first mounting frames, a first slider slidably connected to the corresponding first mounting frame is threadedly connected to the outer wall of each of the first reciprocating screw rods, and a first driving motor driving the corresponding first reciprocating screw rod to rotate is provided at one end of each of the first mounting frames; The adjusting mechanism comprises a limiting frame fixedly connected to the top of each placing frame, both ends of each limiting frame are fixedly connected to an adjusting bin, the interior of each adjusting bin is slidably connected to a first piston plate, a side of each first piston plate close to the limiting frame is fixedly connected to an extrusion piece slidably connected to the adjusting bin and the limiting frame, a first elastic piece is connected between a side of each first piston plate away from the limiting frame and an inner wall of the adjusting bin, an end of each extrusion piece away from the first piston plate is located on the inner side of the limiting frame, and the top is wedge-shaped, the combined beam can be placed on the inner side of the limiting frame, the combined beam can extrude the extrusion piece and drive the first piston plate to move inside the corresponding adjusting bin; The adjusting mechanism further comprises a flow guide bin arranged at both ends of each mounting plate and fixedly connected to the mounting beam, a second piston plate is slidably connected to the interior of each flow guide bin, a side of each second piston plate close to the mounting plate is fixedly connected to an extrusion rod penetrating the flow guide bin, an end of each extrusion rod away from the second piston plate is fixedly connected to a connecting piece, a second elastic piece is connected between a side of each second piston plate close to the mounting plate and an inner wall of the flow guide bin, and the second elastic piece is sleeved on the outer wall of the extrusion rod; Multiple connecting parts are fixedly connected to the top of one of the mounting plates, multiple connecting parts on the other side of different mounting beams are fixedly connected to the top of another mounting plate, and the two guide bins on the mounting beam on the same side are respectively connected to the interior of the two adjustment bins on that side through guide pipes.

2. The performance detection device for a composite beam with corrugated steel webs according to claim 1 is characterized in that: The loading device includes a hydraulic device fixedly connected to the bottom of each first sliding block, the bottom telescopic end of each hydraulic device is fixedly connected to a second mounting frame, and the bottom inner side of each second mounting frame is rotatably connected to a rotating roller for applying load to the composite beam.

3. The performance detection device for a composite beam with corrugated steel webs according to claim 2 is characterized in that: The detection mechanism includes two symmetrically arranged third mounting frames, both ends of each of the third mounting frames are fixedly connected to the two placement frames, a second reciprocating screw is provided on the inner side of each of the third mounting frames, the outer wall of each of the second reciprocating screws is threadedly connected to a second slider slidably connected to the corresponding third mounting frame, and one end of each of the third mounting frames is provided with a second driving motor that drives the corresponding second reciprocating screw to rotate.

4. The performance detection device for a composite beam with corrugated steel webs according to claim 3 is characterized in that: The top of each second sliding block is fixedly connected to a fixing part, a sliding groove is opened inside each fixing part, a third piston plate is slidably connected inside each sliding groove, a pressure sensor and a strain gauge sensor are provided on the top of each third piston plate, a ferromagnetic ring is fixedly connected to the bottom of each third piston plate, an electromagnetic ring is provided on the bottom inner wall of each sliding groove, and a third elastic part arranged on the inner side of the electromagnetic ring and the ferromagnetic ring is connected between the bottom of each third piston plate and the inner wall of the corresponding sliding groove.

5. The performance detection device for a composite beam with corrugated steel webs according to claim 4 is characterized in that: A controller is provided on one of the placement racks, and the loading device, the first drive motor, the second drive motor, the pressure sensor, the strain gauge sensor and the electromagnetic ring are all electrically connected to the controller.

6. A method for detecting the performance of a composite beam with a corrugated steel web, using the device for detecting the performance of a composite beam with a corrugated steel web as claimed in claim 5, characterized in that: The following steps are involved: S1: Place the composite beam at the inner center of the two limit frames; S2: Control the hydraulic equipment to make the rotating roller contact with the composite beam and apply pressure to the composite beam; S3: Control the two first drive motors to rotate in opposite directions, so that the loading devices on the two first reciprocating screws move relative to each other, simulating the state of a vehicle traveling in both directions in an actual situation; S4: Control the two second driving motors to rotate, so that the two detection mechanisms and the corresponding loading devices move in the same direction to detect different positions of the composite beam; S5: The controller processes the detection results of the pressure sensors and strain gauge sensors at different positions.

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