Steel structure bending strength detection equipment based on smart building

Abstract

The invention discloses steel structure bending strength detection equipment based on a smart building, and relates to the technical field of bending strength detection equipment. The invention provides steel structure bending strength detection equipment based on a smart building, which can simulate various conditions, and comprises a rack, a display, a pressing block, a ceramic cylinder, a protective cover plate, an opening and closing door, a telescopic rod, a contact block, a vibration motor and the like, the rack is fixedly connected with the display, the rack is fixedly connected with the ceramic cylinder, the telescopic end of the ceramic cylinder is fixedly connected with the pressing block, and the vibration motor is fixedly connected with the pressing block. The rack is fixedly connected with a protective cover plate, the protective cover plate is rotatably connected with paired opening and closing doors, the rack is fixedly connected with paired telescopic rods, a contact block is fixedly connected between the telescopic ends of the paired telescopic rods, and the contact block is fixedly connected with paired vibration motors. Through the vibration motor, the telescopic rod and other parts, the bending strength of the steel structure in different vibration states can be tested, so that the performance of the steel structure under the dynamic load effect is evaluated, and the detection result is more accurate and better meets the actual requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of bending strength testing equipment, and in particular to a steel structure bending strength testing equipment based on smart buildings. Background Art

[0002] Smart buildings are buildings that optimize the structure, system, service and management of buildings according to user needs, thereby providing users with an efficient, comfortable and convenient humanized building environment. Smart buildings are the product of modern science and technology. There are many steel structures in smart buildings. To ensure the safety of smart buildings, workers need to test the bending strength of steel structures.

[0003] In the patent with publication number CN109406260A, a bending strength detection device for stainless steel hollow pipes is disclosed, including an equipment body, an operation port is opened on the side wall of one side of the equipment body, a mounting platform is provided on the inner bottom wall on the side of the operation port, a support plate is movably installed on the top wall of the mounting platform, a placement groove is opened on the outer side wall of the equipment body close to the operation port, a tube to be tested is arranged inside the placement groove, a pressure sensor is installed on the top wall inside the placement groove, a single-chip microcomputer is installed inside the equipment body, and a display screen is installed on the side wall on one side of the equipment body. The present invention sets up a special steel pipe bending strength detection equipment, which is simple to operate and has a fast detection speed, which helps to improve the detection efficiency. The pressure on the steel pipe is detected by a pressure sensor, and the pressure data is displayed by a single-chip microcomputer, which is convenient for viewing and recording the pressure data. However, the bending strength of the steel structure is affected by many factors such as dynamic load, degree of wear, degree of corrosion and temperature. In order to ensure that smart buildings meet safety standards under different circumstances, the bending strength of the steel structure should meet the standards under different circumstances. However, this bending strength detection device cannot simulate various situations and test the steel structure, which results in the test result being inaccurate because it is not close to reality.

[0004] Based on the above situation, the present invention proposes a steel structure bending strength testing device based on smart buildings that can simulate various situations. Summary of the invention

[0005] In order to overcome the shortcomings of existing bending strength testing devices that are unable to simulate various situations and test steel structures, resulting in the test results being inaccurate due to not being close enough to reality, the present invention provides a steel structure bending strength testing device based on smart buildings that can simulate a variety of situations.

[0006] A steel structure bending strength testing device based on smart building includes a frame, a display, a pressure block, a ceramic cylinder, a protective cover plate, an opening and closing door, a telescopic rod, a contact block, a vibration motor and a spring piece. The frame is fixedly connected to the display, the frame is fixedly connected to the ceramic cylinder, the telescopic end of the ceramic cylinder is fixedly connected to the pressure block, the pressure block is slidably connected to the frame, the frame is fixedly connected to the protective cover plate, the protective cover plate is rotatably connected to a pair of opening and closing doors, the frame is fixedly connected to a pair of telescopic rods, the telescopic ends of the pairs of telescopic rods are fixedly connected with contact blocks, the contact blocks are fixedly connected to a pair of vibration motors, the output end of the vibration motor has a fan-shaped piece, and a pair of spring pieces are fixedly connected between the contact block and the frame.

[0007] In a further embodiment, the compact is coated with a protective coating.

[0008] Further description, the pressure block has a pressure sensor inside, and the pressure sensor is electrically connected to the display.

[0009] Further description, wherein the protective cover plate is made of heat-insulating material.

[0010] Further explanation: the opening and closing door is made of vacuum glass.

[0011] Further description, it also includes a friction mechanism for causing wear on the steel structure, the friction mechanism is arranged on the protective cover plate, the friction mechanism includes a grinding wheel, a fixed shell, a push frame and a hydraulic cylinder, the fixed shell is fixedly connected to the protective cover plate, the fixed shell is fixedly connected to the hydraulic cylinder, the telescopic end of the hydraulic cylinder is fixedly connected to the push frame, and the push frame is fixedly connected to the grinding wheel.

[0012] Further description, it also includes a corrosion mechanism for corroding steel structures, the corrosion mechanism is arranged on the frame, the corrosion mechanism includes a liquid storage tank, a liquid guide tube, a liquid pump, a nozzle and a heater, the pairs of liquid storage tanks are fixedly connected to the frame, the frame is fixedly connected with a pair of liquid guide tubes, the frame is fixedly connected with a pair of liquid pumps, the frame is fixedly connected with a pair of nozzles, the liquid guide tube is connected with the liquid pump, one end of the liquid guide tube is connected with the liquid storage tank, the other end of the liquid guide tube is connected with the nozzle, and the protective cover plate is fixedly connected with a pair of heaters.

[0013] Further explanation, it also includes an oxygenation mechanism for accelerating the corrosion rate, which is arranged on the protective cover plate. The oxygenation mechanism includes an oxygen tank, an installer, an air pipe, a spray plate and an elastic block. The installer is fixed between the protective cover plate and the frame, the installer is clamped with the oxygen tank, the installer is fixed with the air pipe, and the air pipe is Y-shaped, the protective cover plate is fixed with a pair of spray plates, one end of the air pipe is connected to the oxygen tank, and the other two ends of the air pipe are connected to the spray plates, the push frame is fixed with a pair of elastic blocks, and the spray plate and the elastic block are slidably connected.

[0014] It is further explained that the internal air pressure of the oxygen tank is greater than the external atmospheric pressure.

[0015] Further description, it also includes a heating mechanism for making the steel structure heat unevenly. The heating mechanism is arranged on the protective cover plate. The heating mechanism includes an air pump, an air duct and a flexible nozzle. The air pump is fixedly connected to the protective cover plate. The air inlet of the air pump is connected to the outside air. The heater on one side is fixedly connected to the air duct. One end of the air duct is connected to the air outlet of the air pump, and the other end of the air duct is connected and fixedly connected to the flexible nozzle.

[0016] The beneficial effects are: 1. The present invention can test the bending strength of steel structures under different vibration states through components such as vibration motors and telescopic rods, thereby evaluating the performance of steel structures under dynamic loads, verifying the rationality and quality of their design, and ensuring that the steel structures can still maintain sufficient safety reserves under the expected dynamic loads, making the test results of steel structure bending strength testing equipment based on smart buildings more accurate and more in line with actual needs.

[0017] 2. The present invention can test the bending strength of steel structures with different degrees of wear through components such as grinding wheels and hydraulic cylinders, thereby evaluating the bearing capacity of steel structures under wear, ensuring the safety of buildings or structures in actual use, and preventing collapse accidents caused by insufficient strength, making the test results of steel structure bending strength testing equipment based on smart buildings more accurate and more in line with actual needs.

[0018] 3. The present invention can test the bending strength of steel structures with different degrees of rust or corrosion through components such as liquid pumps and nozzles, thereby making it easier for people to determine the actual impact of corrosion on the bearing capacity of steel structures and ensure that even after the performance of some materials has declined, the structure can still meet the minimum requirements for safe use, making the test results of the steel structure bending strength testing equipment based on smart buildings more accurate and more in line with actual needs.

[0019] 4. The present invention uses components such as oxygen tanks and spray plates to increase the oxygen content in the space composed of a frame, a protective cover plate and an opening and closing door, thereby accelerating the speed at which salt water corrodes the steel structure, allowing the steel structure to reach a corresponding degree of corrosion in a short period of time, thereby improving the test efficiency of the steel structure bending strength detection equipment based on smart buildings.

[0020] 5. The present invention can test the bending strength of steel structures under uneven heating conditions through components such as air pumps and flexible nozzles, thereby better reflecting the true performance of steel structures in complex temperature fields, making it easier for people to ensure that the bending strength of steel structures still meets safety standards when heated unevenly, and making the test results of steel structure bending strength testing equipment based on smart buildings more accurate and more in line with actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a three-dimensional structural schematic diagram of components such as a frame, a display and a protective cover plate of the present invention.

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the frame of the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the components such as the frame, the pressing block and the ceramic cylinder of the present invention.

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the frame, protective cover plate and opening and closing door of the present invention.

[0026] Figure 6 It is a schematic diagram of the opening and closing three-dimensional structure of the protective cover plate, the opening and closing door, the contact block and other components of the present invention.

[0027] Figure 7 It is a partial three-dimensional structural schematic diagram of components such as the spring piece, the vibration motor and the contact block of the present invention.

[0028] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the grinding wheel, fixed shell, push frame and other components of the present invention.

[0029] Fig. 9 It is a schematic diagram of the exploded three-dimensional structure of the fixed shell, push frame, hydraulic cylinder and other components of the present invention.

[0030] Fig.10 It is a three-dimensional structural schematic diagram of components such as a liquid storage tank, a liquid guiding tube and a liquid pump of the present invention.

[0031] Fig.11 It is a three-dimensional structural schematic diagram of components such as the liquid guide tube, liquid pump and nozzle of the present invention.

[0032] Fig.12 It is a schematic diagram of the cross-sectional three-dimensional structure of the oxygen tank, the installer, the air guide tube and other components of the present invention.

[0033] Fig.13 It is a three-dimensional structural schematic diagram of the push frame, spray plate, elastic block and other components of the present invention.

[0034] Fig.14 It is a schematic diagram of the exploded three-dimensional structure of the spray plate and the elastic blocking block of the present invention.

[0035] Fig.15 It is a three-dimensional structural schematic diagram of the air pump, air duct, frame and other components of the present invention.

[0036] Fig.16 It is a schematic diagram of the cross-sectional three-dimensional structure of the air pump, air guide pipe, flexible nozzle and other components of the present invention.

[0037] In the above figures: 1: frame, 11: display, 12: pressure block, 1201: ceramic cylinder, 13: protective cover plate, 14: opening and closing door, 15: telescopic rod, 16: contact block, 17: vibration motor, 18: shrapnel, 2: grinding wheel, 21: fixed shell, 22: push frame, 23: hydraulic cylinder, 3: liquid storage tank, 31: liquid guide tube, 32: liquid pump, 33: nozzle, 34: heater, 4: oxygen tank, 41: installer, 42: air guide tube, 43: spray plate, 44: elastic block, 5: air pump, 51: air guide tube, 52: flexible nozzle. DETAILED DESCRIPTION

[0038] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0039] A steel structure bending strength testing device based on smart buildings, such as Figure 1-Figure 7 As shown, it includes a frame 1, a display 11, a pressure block 12, a ceramic cylinder 1201, a protective cover plate 13, an opening and closing door 14, a telescopic rod 15, a contact block 16, a vibration motor 17 and a spring 18. The display 11 is fixedly connected to the upper left part of the frame 1, the ceramic cylinder 1201 is fixedly connected to the middle part of the frame 1, the pressure block 12 is fixedly connected to the telescopic end of the ceramic cylinder 1201, the pressure block 12 is slidably connected to the frame 1, the protective cover plate 13 is fixedly connected to the outside of the frame 1, the opening and closing door 14 is rotatably connected to the left and right parts of the front side of the protective cover plate 13, the telescopic rod 15 is fixedly connected to the left and right sides of the middle part of the frame 1, the contact block 16 is fixedly connected between the telescopic ends of the left and right telescopic rods 15, the vibration motor 17 is fixedly connected to the left and right sides of the contact block 16, the output end of the vibration motor 17 has a fan-shaped piece, and left and right springs 18 are fixedly connected between the contact block 16 and the frame 1.

[0040] like Figure 4 As shown, the exterior of the compact 12 is coated with a protective coating.

[0041] like Figure 4 As shown, the pressure block 12 has a pressure sensor inside, and the pressure sensor is electrically connected to the display 11.

[0042] like Figure 5 As shown, the protective cover plate 13 is made of heat-insulating material.

[0043] like Figure 5 As shown, the opening and closing door 14 is made of vacuum glass.

[0044] Since buildings or steel structures may encounter various dynamic loads during use, such as wind loads, earthquake loads or mechanical vibrations, which may cause the steel structures to vibrate, and dynamic loads may affect the bending strength of the steel structures, when people need to test the bending strength of the steel structures under different vibration states, i.e., different dynamic loads, the opening and closing doors 14 on both sides may be rotated forward to open first, and then the steel structure may be fixed in position by the clamping assembly provided on the frame 1. When the steel structure is placed and fixed, the steel structure may move downward to contact and squeeze the contact block 16, thereby causing the contact block 16 and the vibration motor 17 to move downward, and the telescopic rod 15 and the spring piece 18 may be compressed immediately. Therefore, under the action of the telescopic rod 15 and the spring piece 18, the contact block 16 may always be in close contact with the steel structure, and then the opening and closing door 14 may be rotated in the opposite direction and closed, and then the ceramic cylinder 1201 may be started to first drive the pressure block 12 to move downward and contact the steel structure, and then the pressure block 12 may be driven to move downward and contact the steel structure, and then the ceramic cylinder 1201 may be activated to first drive the pressure block 12 to move downward and contact the steel structure, and then the pressure block 12 may be driven ... The overpressure block 12 applies a steadily increasing pressure to the steel structure, during which the vibration motor 17 is started to generate a certain intensity of vibration, and drive the contact block 16, the steel structure and the pressure block 12 to vibrate accordingly until the steel structure is severely bent or broken. When the steel structure is bent, the contact block 16 and the vibration motor 17 will also be squeezed and move downward immediately. During this period, the pressure value applied by the pressure block 12 will be transmitted to the display 11 in real time through the pressure sensor. The display 11 will convert the pressure data into bending strength data through a formula conversion, and use the critical value when the steel structure is severely bent or broken as the bending strength of the steel structure under this vibration intensity, i.e., dynamic load. In this way, the bending strength of the steel structure under different vibration intensities, i.e., dynamic loads, can be tested, which is convenient for people to ensure that the bending strength of the steel structure still meets the safety standards under the expected dynamic load, so that the bending strength test results are more accurate and more in line with actual needs.

[0045] On the basis of Example 1, Figure 8 and Fig. 9 As shown, it also includes a friction mechanism for causing wear on the steel structure. The friction mechanism is arranged on the protective cover plate 13. The friction mechanism includes a grinding wheel 2, a fixed shell 21, a push frame 22 and a hydraulic cylinder 23. The fixed shell 21 is fixedly connected to the middle of the rear side of the protective cover plate 13, and the hydraulic cylinder 23 is fixedly connected to the front side of the fixed shell 21. The push frame 22 is fixedly connected to the telescopic end of the hydraulic cylinder 23, and the grinding wheel 2 is fixedly connected to the lower part of the push frame 22.

[0046] Since the steel structure will inevitably suffer a certain degree of wear during the transportation and installation process, and the degree of wear of the steel structure will also affect its bending strength, before applying pressure to the steel structure through the ceramic cylinder 1201 and the pressure block 12, the hydraulic cylinder 23 can be started to drive the push frame 22 and the grinding wheel 2 to move forward and backward. The movement of the grinding wheel 2 back and forth will contact the steel structure and rub against it, causing a certain degree of wear in the middle part of the steel structure. Then people can start the ceramic cylinder 1201 and perform a bending strength test on the steel structure. In this way, the bending strength of the steel structure can be tested when it has different degrees of wear, thereby evaluating the bearing capacity of the steel structure under wear, ensuring the safety of the building or structure in actual use, preventing collapse accidents caused by insufficient strength, and making the bending strength test results more accurate and more in line with actual needs.

[0047] like Fig.10 and Fig.11 As shown, it also includes a corrosion mechanism for corroding steel structures. The corrosion mechanism is arranged on the frame 1. The corrosion mechanism includes a liquid storage tank 3, a liquid guide tube 31, a liquid pump 32, a nozzle 33 and a heater 34. The two liquid storage tanks 3 are respectively fixed to the left and right sides of the bottom of the frame 1, the left and right sides of the frame 1 are fixedly connected with liquid guide tubes 31, the left and right sides of the frame 1 are fixedly connected with liquid pumps 32, and the left and right sides of the frame 1 are fixedly connected with nozzles 33. The middle part of the liquid guide tube 31 is connected to the adjacent liquid pump 32, one end of the liquid guide tube 31 is connected to the adjacent liquid storage tank 3, and the other end of the liquid guide tube 31 is connected to the adjacent nozzle 33. The left and right sides of the inside of the protective cover plate 13 are fixedly connected with heaters 34.

[0048] Since the steel structure exposed outside the smart building will be continuously eroded by rainwater, thus affecting the bending strength of the steel structure, before applying pressure to the steel structure through the ceramic cylinder 1201 and the pressure block 12, the push frame 22 and the grinding wheel 2 can be driven by the hydraulic cylinder 23 to move back and forth and scrape off the protective coating and the oxidation protective layer on the surface of the steel structure, and then the liquid pump 32 is started to make the acidic liquid or salt water in the liquid storage tank 3 pass through the liquid guide tube 31 and be sprayed out from the nozzle 33, and the sprayed acidic liquid or salt water will fall on the part of the surface of the steel structure where the protective coating and the oxidation protective layer are scraped off, thereby quickly corroding the steel structure. During this period, the frame 1, the protective cover plate 13 and the opening and closing door 14 will form a relatively closed space, so the heater 34 can be started and the temperature in the space can be increased, thereby accelerating the corrosion of the steel structure by the acidic liquid or salt water, wherein the protective cover plate 13 made of heat insulating material and the opening and closing door 14 made of vacuum glass can greatly reduce the heat dissipation, and after waiting for the corresponding time, people can use the ceramic cylinder 1201 and the pressing block 12 to test the bending strength of the steel structure, so as to test the bending strength of the steel structure with different degrees of rust or corrosion, so as to facilitate people to determine the actual impact of corrosion on the bearing capacity of the steel structure, and ensure that even after the performance of some materials has declined, the structure can still meet the minimum requirements for safe use, so that the test results of the bending strength are more accurate and more in line with actual needs.

[0049] like Figure 12-14 As shown, it also includes an oxygenation mechanism for accelerating the corrosion rate. The oxygenation mechanism is arranged on the protective cover plate 13. The oxygenation mechanism includes an oxygen tank 4, an installer 41, an air pipe 42, a spray plate 43 and an elastic block 44. The installer 41 is fixed between the protective cover plate 13 and the top of the frame 1. The oxygen tank 4 is clamped on the top of the installer 41. The air pipe 42 is fixedly connected to the left side of the installer 41, and the air pipe 42 is Y-shaped. Spray plates 43 are fixedly connected to the left and right sides of the middle of the protective cover plate 13. One end of the air pipe 42 is connected to the oxygen tank 4, and the other two ends of the air pipe 42 are connected to the spray plates 43. Elastic blocks 44 are fixedly connected to the left and right parts of the rear side of the push frame 22, and the spray plate 43 is slidably connected to the adjacent elastic blocks 44.

[0050] like Fig.12 As shown, the internal gas pressure of the oxygen tank 4 is greater than the external atmospheric pressure.

[0051] When the hydraulic cylinder 23 drives the push frame 22 and the grinding wheel 2 to move forward, the elastic block 44 will also move forward with the push frame 22 and separate from the spray plate 43. At this time, since the spray plate 43 is no longer blocked, the oxygen in the oxygen tank 4 will pass through the air duct 42 and spray out from the spray plate 43. When the hydraulic cylinder 23 drives the push frame 22, the grinding wheel 2 and the elastic block 44 to move backward and reset, the elastic block 44 will block the spray plate 43 again, so that the oxygen in the oxygen tank 4 cannot be sprayed out from the spray plate 43. This cycle can increase the oxygen content in the space formed by the frame 1, the protective cover plate 13 and the opening and closing door 14, thereby accelerating the speed at which the salt water and acidic solution erode the steel structure, so that the steel structure can reach the corresponding corrosion degree in a short time, thereby improving the detection efficiency.

[0052] like Fig.15 and Fig.16 As shown, it also includes a heating mechanism for unevenly heating the steel structure. The heating mechanism is arranged on the protective cover plate 13. The heating mechanism includes an air pump 5, an air duct 51 and a flexible nozzle 52. The air pump 5 is fixedly connected to the top left side of the protective cover plate 13. The air inlet of the air pump 5 is connected to the external air. The air duct 51 is fixedly connected to the front side of the heater 34 on the left side. One end of the air duct 51 is connected to the air outlet of the air pump 5, and the other end of the air duct 51 is connected and fixedly connected to the flexible nozzle 52.

[0053] In actual projects, the steel structure may be exposed to sunlight and an environment with large temperature differences, resulting in uneven temperatures in various parts of the structure, which in turn causes thermal stress and affects the bending strength of the steel structure. Therefore, people can also open the opening and closing door 14, and then adjust the state and position of the flexible nozzle 52 so that the nozzle of the flexible nozzle 52 faces the left part of the steel structure, and then start the heater 34 and the air pump 5 on the left. The air pump 5 can inhale external air and pass it through the air guide duct 51, and then spray it out from the nozzle of the flexible nozzle 52 facing the steel structure, and the heat generated by the air pump 5 is reduced. The heater 34 can heat the air passing through the air duct 51, thereby heating part of the steel structure on the left side, causing the overall heating of the steel structure to be uneven, and then the bending strength of the steel structure is tested through the ceramic cylinder 1201 and the pressure block 12, so that the bending strength of the steel structure under the condition of uneven heating can be tested, thereby better reflecting the true performance of the steel structure in a complex temperature field, making it easier for people to ensure that the bending strength of the steel structure still meets the safety standards when it is unevenly heated, and making the bending strength test results more accurate and more in line with actual needs.

[0054] The above embodiments are provided for persons familiar with the art to implement or use the present invention. Personnel familiar with the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. A steel structure bending strength testing device based on smart buildings, comprising a frame (1), a display (11), a pressure block (12), a ceramic cylinder (1201), a protective cover plate (13) and an opening and closing door (14), wherein the frame (1) is fixedly connected to the display (11), the frame (1) is fixedly connected to the ceramic cylinder (1201), the telescopic end of the ceramic cylinder (1201) is fixedly connected to the pressure block (12), the pressure block (12) is slidably connected to the frame (1), the frame (1) is fixedly connected to the protective cover plate (13), and the protective cover plate (13) is rotatably connected to a pair of opening and closing doors (14), wherein: The invention also comprises telescopic rods (15), contact blocks (16), vibration motors (17) and spring pieces (18); the frame (1) is fixedly connected with a pair of telescopic rods (15); the contact blocks (16) are fixedly connected between the telescopic ends of the pair of telescopic rods (15); the contact blocks (16) are fixedly connected with a pair of vibration motors (17); the output end of the vibration motor (17) is provided with a fan-shaped piece; the pair of spring pieces (18) are fixedly connected between the contact blocks (16) and the frame (1).

2. According to the steel structure bending strength testing equipment based on smart building according to claim 1, it is characterized in that: The pressing block (12) is coated with a protective coating.

3. According to the steel structure bending strength testing equipment based on smart building according to claim 2, it is characterized in that: The pressure block (12) has a pressure sensor inside, and the pressure sensor is electrically connected to the display (11).

4. According to the steel structure bending strength testing equipment based on smart building as claimed in claim 3, it is characterized in that: The protective cover plate (13) is made of heat-insulating material.

5. According to the steel structure bending strength testing equipment based on smart building according to claim 4, it is characterized in that: The opening and closing door (14) is made of vacuum glass.

6. The steel structure bending strength testing device based on smart building according to claim 5 is characterized in that: The invention also comprises a friction mechanism for causing the steel structure to wear, the friction mechanism being arranged on the protective cover plate (13), the friction mechanism comprising a grinding wheel (2), a fixed housing (21), a push frame (22) and a hydraulic cylinder (23), the fixed housing (21) being fixedly connected to the protective cover plate (13), the fixed housing (21) being fixedly connected to the hydraulic cylinder (23), the telescopic end of the hydraulic cylinder (23) being fixedly connected to the push frame (22), and the push frame (22) being fixedly connected to the grinding wheel (2).

7. A steel structure bending strength testing device based on smart building according to claim 6, characterized in that: The invention also comprises a corrosion mechanism for corroding a steel structure. The corrosion mechanism is arranged on a frame (1). The corrosion mechanism comprises a liquid storage tank (3), a liquid guide tube (31), a liquid pump (32), a nozzle (33) and a heater (34). The paired liquid storage tanks (3) are fixedly connected to the frame (1). The frame (1) is fixedly connected with a paired liquid guide tube (31). The frame (1) is fixedly connected with a paired liquid pump (32). The frame (1) is fixedly connected with a paired nozzle (33). The liquid guide tube (31) is connected to the liquid pump (32). One end of the liquid guide tube (31) is connected to the liquid storage tank (3). The other end of the liquid guide tube (31) is connected to the nozzle (33). The protective cover plate (13) is fixedly connected with a paired heater (34).

8. The steel structure bending strength testing device based on smart building according to claim 7 is characterized in that: The invention also comprises an oxygenation mechanism for accelerating the corrosion rate, the oxygenation mechanism being arranged on the protective cover plate (13), the oxygenation mechanism comprising an oxygen tank (4), a mounter (41), an air pipe (42), a spray plate (43) and an elastic block (44), the mounter (41) being fixedly connected between the protective cover plate (13) and the frame (1), the mounter (41) being clamped with the oxygen tank (4), the mounter (41) being fixedly connected with the air pipe (42), and the air pipe (42) being Y-shaped, the protective cover plate (13) being fixedly connected with a pair of spray plates (43), one end of the air pipe (42) being connected with the oxygen tank (4), and the other two ends of the air pipe (42) being connected with the spray plates (43), the push frame (22) being fixedly connected with a pair of elastic block (44), and the spray plate (43) being slidably connected with the elastic block (44).

9. The steel structure bending strength testing device based on smart building according to claim 8 is characterized in that: The internal air pressure of the oxygen tank (4) is greater than the external atmospheric pressure.

10. A steel structure bending strength testing device based on smart building according to claim 9, characterized in that: The invention also comprises a heating mechanism for causing the steel structure to be heated unevenly, the heating mechanism being arranged on the protective cover plate (13), the heating mechanism comprising an air pump (5), an air guide pipe (51) and a flexible nozzle (52), the air pump (5) being fixedly connected to the protective cover plate (13), the air inlet of the air pump (5) being connected to the outside air, the heater (34) on one side being fixedly connected to the air guide pipe (51), one end of the air guide pipe (51) being connected to the air outlet of the air pump (5), and the other end of the air guide pipe (51) being connected to and fixedly connected to the flexible nozzle (52).

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