Anti-seismic device for assembly type steel frame

Abstract

The invention provides an anti-seismic device for a fabricated steel frame, and relates to the technical field of anti-seismic equipment. The supporting frame is fixedly connected with the column flange plate and can abut against the beam lower flange plate, a first sensor and a second sensor are arranged on the supporting frame, the first sensor is located below the weld toe, and the second sensor is arranged close to the end of the column flange plate; the first spraying piece is fixedly connected with the supporting frame, the first spraying piece is electrically connected with the first sensor, the first spraying piece can extrude out a first adhesive, and the first adhesive is used for connecting the connecting plate and the beam lower flange plate; and the second spraying piece is fixedly connected with the supporting frame and located between the beam lower flange plate and the connecting plate, the second spraying piece is electrically connected with the first inductor and the second inductor, and the second spraying piece can extrude out a second adhesive. The problems that breakage at the beam column welding position often has no early warning, and once breakage occurs, emergency measures are lacked to temporarily stabilize a beam are solved.

Description

Technical Field

[0001] The present application relates to the technical field of earthquake-resistant equipment, and in particular to an earthquake-resistant device for assembled steel frames. Background Art

[0002] Steel frame structures have been widely used in modern construction projects due to their advantages such as high strength, light weight and fast construction. However, under extreme conditions such as earthquakes, the seismic performance of the connection parts of steel frame structures, especially the welded connections between columns and beams, becomes a key issue.

[0003] In steel frame structures, columns and beams are usually connected by welding, and the weld toe is the key area of ​​the connection. Usually, when a fracture occurs, the lower flange plate of the beam breaks before the upper flange plate of the beam. The common fracture area is between the lower flange plate of the beam and the flange plate of the column. There are three common fracture forms: one is the fracture starting from the junction between the lower edge of the weld toe and the column, one is the upward extension from the lower edge of the weld toe along the flange of the column; the other is the cracking of the beam flange from the upper edge of the weld toe. All three situations may cause serious damage to the structure.

[0004] When faced with the problem of fracture at the welded joints of steel frame beams and columns, a series of repair and reinforcement measures are usually taken to restore the integrity and safety of the structure. However, fracture at the welded joints of beams and columns often occurs without warning, and once fracture occurs, there is a lack of effective emergency measures to temporarily stabilize the beam. This may cause the beam to fall after a complete fracture, causing irreversible damage. Summary of the invention

[0005] The purpose of the present application is to provide an anti-seismic device for an assembled steel frame, which is used to solve the problem in the related art that fractures at beam-column welds often occur without warning, and once fractures occur, there is a lack of effective emergency measures to temporarily stabilize the beams.

[0006] The present application provides an anti-seismic device for an assembled steel frame using the following technical solution: An anti-seismic device for an assembled steel frame, comprising A connecting plate, the connecting plate is located above the lower flange plate of the beam, and the connecting plate is fixedly connected to the column flange plate; A support frame, the support frame is fixedly connected to the column flange plate, the support frame can abut against the lower flange plate of the beam, and the support frame is provided with a first sensor and a second sensor, the first sensor is located below the weld toe, and the second sensor is located on a side of the first sensor away from the column flange plate; A first spraying member, the first spraying member is fixedly connected to the support frame and is located at an end of the lower flange plate of the beam, the first spraying member is electrically connected to the first sensor, and when the first sensor senses a pressure change, the first spraying member extrude a first adhesive, and the first adhesive is used to connect the connecting plate and the lower flange plate of the beam; The second sprayed part is fixedly connected to the support frame, the second sprayed part is located between the lower flange plate of the beam and the connecting plate, the second sprayed part is electrically connected to the first sensor and the second sensor, and when the pressure sensed by the first sensor does not change and the pressure applied to the second sensor changes, the second sprayed part extrude the second adhesive.

[0007] By adopting the above technical solution, when the pressure signal of the first sensor changes greatly, it indicates that the fracture starts from the junction between the lower edge of the weld toe and the column or extends upward from the lower edge of the weld toe along the column flange. When these two situations occur, it means that the stress at the lower edge of the weld toe is too large, and it is necessary to provide an upward pulling force to the entire lower flange plate of the beam. Use the first adhesive to connect the connecting plate fixedly connected to the column flange plate with the lower flange plate of the beam, so that the connecting plate provides an upward pulling force to the lower flange plate of the beam to prevent the lower edge of the weld toe from completely breaking at the junction with the column, or the lower edge of the weld toe from extending upward along the column flange to completely breaking, thereby causing the lower flange plate of the beam and the flange plate of the column to completely break; When the pressure change of the first sensor is stable within a range, the pressure signal of the second sensor changes greatly, indicating that the beam flange has cracked from the upper edge of the weld toe. This is due to the excessive stress on the upper edge of the weld toe on the beam flange during the vibration process. It is necessary to fill the crack on the beam flange in time before the beam flange is completely cracked. Use the second adhesive to directly fill the crack to prevent the beam flange from being dislocated from the front end after the crack, thereby causing the beam flange and the column flange to break completely.

[0008] Since the stress on the lower flange plate of the beam is greater, the fracture between the beam and the column usually starts from the lower flange plate of the beam. When the lower flange plate of the beam breaks, the connection between the upper flange plate of the beam and the flange plate of the column is more likely to break, causing the entire I-beam to separate from the column. The beam falls after it breaks completely, causing irreversible damage.

[0009] In the technical solution, the first adhesive or the second adhesive is used to take effective emergency measures to temporarily stabilize the beam when the lower flange plate of the beam and the column flange plate have not yet completely separated, to prevent complete and irreparable fracture, so that a series of repair and reinforcement measures can be taken subsequently to restore the integrity and safety of the structure.

[0010] Optionally, the connecting plate includes a first transverse plate, a vertical plate and a second transverse plate, the first transverse plate is fixedly connected to the column flange plate, the second transverse plate is located on the side of the first transverse plate away from the column flange plate, the second transverse plate is arranged parallel to the first transverse plate, the vertical plate connects the first transverse plate and the second transverse plate, the second spray-coated part is located between the first transverse plate and the beam lower flange plate, and the first adhesive can connect the second transverse plate and the beam lower flange plate.

[0011] By adopting the above technical solution, the connecting plate is set in a Z shape, so that there is sufficient space at the front end of the first horizontal plate to accommodate the second sprayed part; at the rear end of the second horizontal plate, the spacing is smaller, which is convenient for the first adhesive to connect the connecting plate and the lower flange plate of the beam.

[0012] Optionally, the support frame includes a support vertical plate and a support cross plate, the support vertical plate is vertically arranged and located on the side of the lower flange plate of the beam, the support vertical plate is fixedly connected to the column flange plate, the support cross plate is located below the lower flange plate of the beam, both ends of the support cross plate are fixedly connected to the two support vertical plates, the support cross plate can abut against the lower flange plate of the beam, and the first sensor and the second sensor are arranged on the support cross plate.

[0013] By adopting the above technical solution, the supporting transverse plate can play a certain supporting role on the flange plate under the beam, and can make the first sensor and the second sensor contact with the flange plate under the beam to receive signals.

[0014] Optionally, it also includes a first guide rod, the first spraying member includes a first driving member, a first moving block and a first spraying nozzle, the first guide rod is fixedly connected to the supporting vertical plate, the first driving member is electrically connected to the first sensor, the first driving member is fixedly connected to the supporting vertical plate, the first moving block is fixedly connected to the output shaft of the first driving member, the first moving block is slidably connected to the first guide rod, and the first spraying nozzle is fixedly connected to the first moving block.

[0015] By adopting the above technical solution, the first spray nozzle is fixedly connected to the first moving block, and the first spray nozzle can move under the drive of the first moving block to spray the first adhesive between the lower flange plate of the beam and the second transverse plate.

[0016] Optionally, the first driving member includes a first motor and a first screw rod, the first motor is fixedly connected to the first screw rod, the first motor is electrically connected to the first sensor, and the first moving block is slidably connected to the first screw rod.

[0017] By adopting the above technical solution, the first moving block is slidably connected to the first screw rod, so that the first moving block can move on the first screw rod under the drive of the first motor.

[0018] Optionally, it also includes a first blocking block and a second blocking block, wherein the first blocking block and the second blocking block are respectively fixed at both ends of the first guide rod, and a first blocking groove is opened on the first spray nozzle, and the first blocking block can be slidably connected to the first blocking groove, and the second blocking block can be slidably connected to the first blocking groove.

[0019] By adopting the above technical solution, the first blocking block and the second blocking block can be slidably connected to the first blocking groove and block the first blocking groove, so that the first spray nozzle can stop spraying the first adhesive when it moves to both ends of the first guide rod.

[0020] Optionally, it also includes a second guide rod, the second spray member includes a second drive member, a second movable block and a second spray nozzle, the second guide rod is fixedly connected to the support vertical plate, the second drive member is electrically connected to the first sensor and the second sensor, the second drive member is fixedly connected to the support vertical plate, the second movable block is fixedly connected to the output shaft of the drive member, the second movable block is slidably connected to the second guide rod, and the second spray nozzle is fixedly connected to the second movable block.

[0021] By adopting the above technical solution, the second spray nozzle is fixedly connected to the second moving block, and the second spray nozzle can move under the drive of the second moving block to spray the second adhesive into the cracks generated on the lower flange plate of the beam.

[0022] Optionally, the second driving member includes a second motor and a second screw rod, the second motor is fixedly connected to the second screw rod, the second motor is electrically connected to the first sensor and the second sensor, and the second moving block is slidably connected to the second screw rod.

[0023] By adopting the above technical solution, the second moving block is slidably connected to the second screw rod, so that the second moving block can move on the second screw rod under the drive of the second motor.

[0024] Optionally, it also includes a third blocking block and a fourth blocking block, wherein the third blocking block and the fourth blocking block are respectively fixed at both ends of the second guide rod, and a second blocking groove is opened on the second spray nozzle, and the third blocking block can be slidably connected to the second blocking groove, and the fourth blocking block can be slidably connected to the second blocking groove.

[0025] By adopting the above technical solution, the third blocking block and the fourth blocking block can be slidably connected to the second blocking groove and block the second blocking groove, so that the second spray nozzle can stop spraying the second adhesive when it moves to both ends of the second guide rod.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By filling the first adhesive between the second transverse plate and the lower flange plate of the beam, the second transverse plate adhered by the first adhesive provides an upward pulling force to the lower flange plate of the beam, thereby preventing the lower edge of the weld toe from completely breaking at the junction with the column, or the lower edge of the weld toe from extending upward along the column flange to completely breaking, thereby causing the lower flange plate of the beam and the column flange plate to completely break; The cracks generated from the beam flange at the upper edge of the weld toe are glued by the second adhesive to prevent the beam lower flange plate from completely cracking, thereby causing the beam lower flange plate and the column flange plate to be completely broken; In the technical solution, the first adhesive or the second adhesive is used to take effective emergency measures to temporarily stabilize the beam when the lower flange plate of the beam and the column flange plate have not yet completely separated, to prevent complete and irreparable fracture, so that a series of repair and reinforcement measures can be taken subsequently to restore the integrity and safety of the structure.

[0027] 2. The first blocking block and the second blocking block can be slidably connected to the first blocking groove and block the first blocking groove, so that the first spray nozzle stops spraying the first adhesive when it moves to both ends of the first guide rod; the third blocking block and the fourth blocking block can be slidably connected to the second blocking groove and block the second blocking groove, so that the second spray nozzle stops spraying the second adhesive when it moves to both ends of the second guide rod; thereby preventing the adhesive from spraying everywhere and being unable to stop. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application; Figure 2 It is a cross-sectional schematic diagram of the first viewing angle of the embodiment of the present application; Figure 3 for Figure 2 A partial enlarged schematic diagram of part A; Figure 4 It is a partial cross-sectional view from a second viewing angle of the embodiment of the present application.

[0029] In the figure: 10. Connecting plate; 11. First horizontal plate; 12. Vertical plate; 13. Second horizontal plate; 20. Support frame; 21. Support vertical board; 22. Support horizontal board; 221. First sensor; 222. Second sensor; 30. First spraying member; 31. First driving member; 311. First motor; 312. First screw rod; 32. First moving block; 33. First spraying nozzle; 331. First blocking groove; 40, second spraying member; 41, second driving member; 411, second motor; 412, second screw rod; 42, second moving block; 43, second spraying nozzle; 431, second blocking groove; 50. A first guide rod; 60. first blocking block; 70. second blocking block; 80. A second guide rod; 90, the third blocking block; 100, the fourth blocking block; 110. Beam lower flange plate; 120, column flange plate; 130. Weld toe. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0031] The embodiment of the present application discloses an anti-seismic device for an assembled steel frame.

[0032] Reference Figure 1 The steel frame is composed of columns and beams. Two column flange plates 120 and a column web are combined to form an I-shaped column. The upper flange plate of the beam, the lower flange plate of the beam 110 and the web of the beam form an I-shaped beam. Figure 2 and Figure 3 The I-beam is welded to one side of a column flange plate 120 through a weld toe 130 to form a steel frame structure. The welding material melts and penetrates into the edge of the column flange plate 120. As the welding progresses and the welding material solidifies, a smooth transition area is formed, which is the weld toe 130.

[0033] Reference Figure 1 , Figure 2 and Figure 3A seismic device for an assembled steel frame includes a connecting plate 10, a support frame 20, a first spraying member 30, a second spraying member 40, a first guide rod 50, a first blocking block 60, a second blocking block 70, a second guide rod 80, a third blocking block 90 and a fourth blocking block 100. The connecting plate 10 is located above the lower flange plate 110 of the beam, and the connecting plate 10 is fixedly connected to the column flange plate 120. The support frame 20 is located at the side of the beam flange plate, and the support frame 20 is fixedly connected to the column flange plate 120. The support frame 20 can abut against the bottom surface of the lower flange plate 110 of the beam. The support frame 20 is provided with a first sensor 221 and a second sensor 222, and the first sensor 221 and the second sensor 222 can abut against the bottom surface of the lower flange plate 110 of the beam. The first sensor 221 is located below the weld toe 130, and the second sensor 222 is located on the support frame 20 on the side of the first sensor 221 away from the column flange plate 120. The first spraying member 30 is electrically connected to the first sensor 221, the first spraying member 30 is fixedly connected to the support frame 20 and is located at the end of the beam lower flange plate 110. When the first sensor 221 senses a change in pressure, the first sensor 221 drives the first spraying member 30 to spray the first adhesive, and the first adhesive connects the connecting plate 10 and the beam lower flange plate 110. The second spraying member 40 is electrically connected to the first sensor 221 and the second sensor 222, the second spraying member 40 is fixedly connected to the support frame 20, and the second spraying member 40 is located between the beam lower flange plate 110 and the connecting plate 10. When the pressure on the first sensor 221 does not change but the pressure on the second sensor 222 changes, the second spraying member 40 is driven to spray the second adhesive, and the second adhesive can fill the crack.

[0034] The first sensor 221 is located below the weld toe 130, and the second sensor 222 is located slightly away from the first sensor 221. When the pressure signal of the first sensor 221 changes greatly, it indicates that the weld toe 130 starts to break at the junction with the column or expands upward from the weld toe 130 along the column flange. When these two situations occur, it indicates that the stress at the weld toe 130 is too large, and it is necessary to provide an upward pulling force to the entire beam flange plate 110. The connecting plate 10 fixedly connected to the column flange plate 120 is connected to the beam flange plate 110 using the first adhesive, so that the connecting plate 10 provides an upward pulling force to the beam flange plate 110 to prevent the weld toe 130 from completely breaking at the junction with the column, or the weld toe 130 from expanding upward along the column flange to completely breaking, thereby causing the beam flange plate 110 and the column flange plate 120 to completely break.

[0035] When the pressure change of the first sensor 221 is stable within a range, the pressure signal of the second sensor 222 changes greatly, indicating that the beam flange has cracked from the upper edge of the weld toe 130. This is due to the excessive stress on the upper edge of the weld toe 130 on the beam flange plate 110 during the vibration process. It is necessary to fill the crack on the beam flange plate 110 in time before the beam flange plate 110 is completely cracked. Use the second adhesive to directly fill the crack to prevent the beam flange plate 110 from being misaligned with the front end after the crack, thereby causing the beam flange plate 110 and the column flange plate 120 to be completely broken.

[0036] Since the beam lower flange plate 110 is subjected to greater stress, the fracture between the beam and the column usually starts from the beam lower flange plate 110. When the beam lower flange plate 110 is broken, the connection between the beam upper flange plate and the column flange plate 120 is more likely to break, causing the entire I-beam to separate from the column, and the beam falls after being completely broken, causing irreversible damage.

[0037] In the present technical solution, the first adhesive or the second adhesive is used to take effective emergency measures to temporarily stabilize the beam when the lower flange plate 110 of the beam and the column flange plate 120 have not yet completely separated, to prevent complete and irreparable fracture, so that a series of repair and reinforcement measures can be taken subsequently to restore the integrity and safety of the structure.

[0038] Reference Figure 1 The specific structure of the connecting plate 10 and the specific connection relationship between the column flange plate 120 and the beam lower flange plate 110 are as follows: the connecting plate 10 includes a first transverse plate 11, a vertical plate 12 and a second transverse plate 13, the first transverse plate 11 is fixedly connected to the column flange plate 120, the second transverse plate 13 is located on the side of the first transverse plate 11 away from the column flange plate 120, the second transverse plate 13 is arranged parallel to the first transverse plate 11, and the vertical plate 12 connects the first transverse plate 11 and the second transverse plate 13 to form a Z-shaped connecting plate 10. The second spraying member 40 is located between the first transverse plate 11 and the beam lower flange plate 110, the first spraying member 30 is located between the second transverse plate 13 and the beam lower flange plate 110, and the first adhesive can connect the second transverse plate 13 and the beam lower flange plate 110.

[0039] Since the second spraying member 40 needs to be arranged between the connecting plate 10 and the beam lower flange plate 110, and the first spraying member 30 needs to spray the first adhesive to connect the connecting plate 10 and the beam lower flange plate 110, the distance between the connecting plate 10 and the beam lower flange plate 110 cannot be too small to prevent the second spraying member 40 from being unable to be accommodated, and cannot be too large to prevent the first adhesive from being unable to well bond the connecting plate 10 and the beam lower flange plate 110. Thus, the Z-shaped connecting plate 10 is arranged, and there is a surplus space at the front end first transverse plate 11 to accommodate the second spraying member 40; at the rear end second transverse plate 13, a smaller spacing is arranged to facilitate the first adhesive to connect the connecting plate 10 and the beam lower flange plate 110.

[0040] Reference Figure 1 The specific structure of the support frame 20 and the specific connection relationship between the column flange plate 120 and the beam lower flange plate 110 are as follows: the support frame 20 includes a support vertical plate 21 and a support horizontal plate 22, the support vertical plate 21 is vertically arranged and located on the side of the beam flange plate, the support vertical plate 21 is fixedly connected to the column flange plate 120, the support horizontal plate 22 is located below the beam lower flange plate 110, and both ends of the support horizontal plate 22 are fixedly connected to the two support vertical plates 21, and the support horizontal plate 22 can abut against the beam lower flange plate 110; the first sensor 221 and the second sensor 222 are arranged on the support horizontal plate 22.

[0041] The two supporting vertical plates 21 are connected with a supporting horizontal plate 22. On the one hand, the supporting horizontal plate 22 provides certain support to the lower flange plate 110 of the beam. On the other hand, the first sensor 221 and the second sensor 222 arranged on the supporting horizontal plate 22 can transmit signals to the first spraying part 30 and the second spraying part 40 through the changes in the pressure on the supporting horizontal plate 22.

[0042] Reference Figure 1 , Figure 3 and Figure 4 The specific structure of the first spraying member 30 and the specific connection relationship between the second horizontal plate 13, the lower flange plate 110 of the beam and the first guide rod 50 are as follows: the first spraying member 30 includes a first driving member 31, a first moving block 32 and a first spray nozzle 33, the first guide rod 50 is fixedly connected to the support vertical plate 21, the first driving member 31 is electrically connected to the first sensor 221, the first driving member 31 is fixedly connected to the support vertical plate 21, the first moving block 32 is fixedly connected to the output shaft of the first driving member 31, the first moving block 32 is slidably connected to the first guide rod 50, and the first spray nozzle 33 is fixedly connected to the first moving block 32.

[0043] The specific structure of the first driving member 31 and the specific connection relationship between the first moving block 32 are as follows: the first driving member 31 includes a first motor 311 and a first screw rod 312, the first screw rod 312 is fixedly connected to the output shaft of the first motor 311, the first motor 311 is electrically connected to the first sensor 221, and the first moving block 32 is slidably connected to the first screw rod 312. The first blocking block 60 and the second blocking block 70 are respectively fixed to the two ends of the first guide rod 50, and the first blocking groove 331 is provided on the first spray nozzle 33, the first blocking block 60 can be slidably connected to the first blocking groove 331, and the second blocking block 70 can be slidably connected to the first blocking groove 331.

[0044] When the pressure signal of the first sensor 221 changes greatly, it indicates that the fracture starts from the junction between the lower edge of the weld toe 130 and the column or extends upward from the lower edge of the weld toe 130 along the column flange. When these two situations occur, it means that the stress at the lower edge of the weld toe 130 is too large, and an upward pulling force needs to be provided to the entire beam lower flange plate 110. The first sensor 221 transmits a signal to the first motor 311, and the first motor 311 drives the first screw rod 312 to rotate, driving the first movable block 32 to move on the first guide rod 50. At this time, the first spray nozzle 33 is away from the first blocking block 60, and the first blocking groove 331 is opened. The first adhesive is sprayed out from the first spray nozzle 33, and the first adhesive bonds the second cross plate 13 and the lower flange plate 110 of the beam; when the first movable block 32 moves to the other end of the first guide rod 50, the first spray nozzle 33 approaches the second blocking block 70, and the second blocking block 70 blocks the first blocking groove 331, and the first adhesive stops spraying.

[0045] At this time, the second transverse plate 13 adhered by the first adhesive provides an upward pulling force to the lower flange plate 110 of the beam, preventing the lower edge of the weld toe 130 from completely breaking at the junction with the column, or the lower edge of the weld toe 130 from extending upward along the column flange to completely breaking, thereby causing the lower flange plate 110 of the beam and the column flange plate 120 to completely break.

[0046] Reference Figure 1 , Figure 3 and Figure 4 The specific structure of the second spraying member 40 and the specific connection relationship between the first horizontal plate 11, the lower flange plate 110 of the beam and the second guide rod 80 are as follows: the second spraying member 40 includes a second driving member 41, a second moving block 42 and a second spray nozzle 43, the second guide rod 80 is fixedly connected to the support vertical plate 21, the second driving member 41 is electrically connected to the first sensor 221 and the second sensor 222, the second driving member 41 is fixedly connected to the support vertical plate 21, the second moving block 42 is fixedly connected to the output shaft of the second driving member 41, the second moving block 42 is slidably connected to the second guide rod 80, and the second spray nozzle 43 is fixedly connected to the second moving block 42.

[0047] The specific structure of the second driving member 41 and the specific connection relationship between the second moving block 42 are as follows: the second driving member 41 includes a second motor 411 and a second screw rod 412, the second screw rod 412 is fixedly connected to the output shaft of the second motor 411, the second motor 411 is electrically connected to the second sensor 222, and the second moving block 42 is slidably connected to the second screw rod 412. The third blocking block 90 and the fourth blocking block 100 are respectively fixed to the two ends of the second guide rod 80, and the second spray nozzle 43 is provided with a second blocking groove 431, the third blocking block 90 can be slidably connected to the second blocking groove 431, and the fourth blocking block 100 can be slidably connected to the second blocking groove 431.

[0048] When the pressure change on the first sensor 221 is stable within a range and the pressure signal of the second sensor 222 changes greatly, it indicates that a crack has occurred on the beam flange at the upper edge of the weld toe 130. When these two situations occur, it means that the stress on the upper edge of the weld toe 130 on the beam lower flange plate 110 is too large during the vibration process, and the crack on the upper end of the beam lower flange plate 110 needs to be filled in time before the beam lower flange plate 110 is completely cracked. The first sensor 221 and the second sensor 222 transmit signals to the second motor 411, and the second motor 411 drives the second screw rod 412 to rotate, driving the second movable block 42 to move on the second guide rod 80. At this time, the second spray nozzle 43 is away from the second blocking block 70, and the second blocking groove 431 is opened. The second adhesive is sprayed out from the second spray nozzle 43, and the second adhesive bonds the crack; when the second movable block 42 moves to the other end of the second guide rod 80, the second spray nozzle 43 approaches the fourth blocking block 100, and the fourth blocking block 100 blocks the second blocking groove 431, and the second adhesive stops spraying.

[0049] At this time, the second adhesive is used to seal the cracks to prevent the beam lower flange plate 110 from completely cracking, thereby causing the beam lower flange plate 110 and the column flange plate 120 to completely break.

[0050] The implementation principle of the seismic-resistant device for a prefabricated steel frame in this embodiment is as follows: when the pressure signal of the first sensor 221 changes greatly, it indicates that a fracture has occurred starting from the junction between the lower edge of the weld toe 130 and the column or extending upward from the lower edge of the weld toe 130 along the column flange. When these two situations occur, it indicates that the stress at the lower edge of the weld toe 130 is too large. The first sensor 221 transmits a signal to the first motor 311, and the first motor 311 drives the first screw rod 312 to rotate, driving the first moving block 32 to move on the first guide rod 50. At this time, the first spray nozzle 33 is away from the first blocking block 60, the first blocking groove 331 is opened, and the first adhesive is sprayed from the first spray nozzle 33, and the first adhesive is bonded between the second cross plate 13 and the lower flange plate 110 of the beam; when the first moving block 32 moves to the other end of the first guide rod 50, the first spray nozzle 33 approaches the second blocking block 70, and the second blocking block 70 blocks the first blocking groove 331, and the first adhesive stops spraying; At this time, the second transverse plate 13 adhered by the first adhesive provides an upward pulling force to the lower flange plate 110 of the beam, preventing the lower edge of the weld toe 130 from completely breaking at the junction with the column, or the lower edge of the weld toe 130 from extending upward along the column flange to completely breaking, thereby causing the lower flange plate 110 of the beam and the column flange plate 120 to completely break.

[0051] When the pressure change of the first sensor 221 is stable within a range, the pressure signal of the second sensor 222 changes greatly, indicating that the beam flange has cracked from the upper edge of the weld toe 130. This is due to the excessive stress on the upper edge of the weld toe 130 on the lower flange plate 110 of the beam during the vibration process. The first sensor 221 and the second sensor 222 transmit signals to the second motor 411, and the second motor 411 drives the second screw 412 to rotate, driving the second moving block 42 to move on the second guide rod 80. At this time, the second spray nozzle 43 is away from the second blocking block 70, the second blocking groove 431 is opened, and the second adhesive is sprayed from the second spray nozzle 43, and the second adhesive bonds the crack; when the second moving block 42 moves to the other end of the second guide rod 80, the second spray nozzle 43 approaches the fourth blocking block 100, and the fourth blocking block 100 blocks the second blocking groove 431, and the second adhesive stops spraying.

[0052] At this time, the second adhesive is used to stick the crack generated from the beam flange at the upper edge of the weld toe 130 to prevent the beam lower flange plate 110 from completely cracking, thereby causing the beam lower flange plate 110 and the column flange plate 120 to be completely broken.

[0053] Since the beam lower flange plate 110 is subjected to greater stress, the fracture between the beam and the column usually starts from the beam lower flange plate 110. When the beam lower flange plate 110 is broken, the connection between the beam upper flange plate and the column flange plate 120 is more likely to break, causing the entire I-beam to separate from the column, and the beam falls after being completely broken, causing irreversible damage.

[0054] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A seismic device for an assembled steel frame, characterized in that: include A connecting plate (10), the connecting plate (10) being located above the beam lower flange plate (110), the connecting plate (10) being fixedly connected to the column flange plate (120); A support frame (20), the support frame (20) being fixedly connected to the column flange plate (120), the support frame (20) being capable of abutting against the beam lower flange plate (110), the support frame (20) being provided with a first sensor (221) and a second sensor (222), the first sensor (221) being located below the weld toe (130), and the second sensor (222) being located on a side of the first sensor (221) away from the column flange plate (120); a first spraying member (30), the first spraying member (30) being fixedly connected to the support frame (20) and being located at an end of the beam lower flange plate (110), the first spraying member (30) being electrically connected to the first sensor (221), and when the first sensor (221) senses a change in pressure, the first spraying member (30) extrudes a first adhesive, the first adhesive being used to connect the connection plate (10) and the beam lower flange plate (110); A second spraying member (40), the second spraying member (40) being fixedly connected to the support frame (20), the second spraying member (40) being located between the beam lower flange plate (110) and the connecting plate (10), the second spraying member (40) being electrically connected to the first sensor (221) and the second sensor (222), and when the pressure sensed by the first sensor (221) does not change and the pressure sensed by the second sensor (222) changes, the second spraying member (40) extrude a second adhesive.

2. The seismic device for an assembled steel frame according to claim 1, characterized in that: The connecting plate (10) comprises a first transverse plate (11), a vertical plate (12) and a second transverse plate (13); the first transverse plate (11) is fixedly connected to the column flange plate (120); the second transverse plate (13) is located on a side of the first transverse plate (11) away from the column flange plate (120); the second transverse plate (13) is arranged parallel to the first transverse plate (11); the vertical plate (12) connects the first transverse plate (11) and the second transverse plate (13); the second spraying member (40) is located between the first transverse plate (11) and the beam lower flange plate (110); and the first adhesive is capable of connecting the second transverse plate (13) and the beam lower flange plate (110).

3. The seismic device for an assembled steel frame according to claim 2, characterized in that: The support frame (20) comprises a support vertical plate (21) and a support horizontal plate (22); the support vertical plate (21) is vertically arranged and located on the side of the beam lower flange plate (110); the support vertical plate (21) is fixedly connected to the column flange plate (120); the support horizontal plate (22) is located below the beam lower flange plate (110); two ends of the support horizontal plate (22) are fixedly connected to the two support vertical plates (21); the support horizontal plate (22) can abut against the beam lower flange plate (110); and the first sensor (221) and the second sensor (222) are arranged on the support horizontal plate (22).

4. The seismic device for an assembled steel frame according to claim 3, characterized in that: The invention also comprises a first guide rod (50), wherein the first spraying member (30) comprises a first driving member (31), a first moving block (32) and a first spraying nozzle (33), wherein the first guide rod (50) is fixedly connected to the supporting vertical plate (21), the first driving member (31) is electrically connected to the first sensor (221), the first driving member (31) is fixedly connected to the supporting vertical plate (21), the first moving block (32) is fixedly connected to the output shaft of the first driving member (31), the first moving block (32) is slidably connected to the first guide rod (50), and the first spraying nozzle (33) is fixedly connected to the first moving block (32).

5. The seismic device for an assembled steel frame according to claim 4, characterized in that: The first driving member (31) comprises a first motor (311) and a first screw rod (312); the first motor (311) is fixedly connected to the first screw rod (312); the first motor (311) is electrically connected to the first sensor (221); and the first moving block (32) is slidably connected to the first screw rod (312).

6. The seismic device for an assembled steel frame according to claim 4, characterized in that: It also includes a first blocking block (60) and a second blocking block (70), wherein the first blocking block (60) and the second blocking block (70) are respectively fixed at two ends of the first guide rod (50), and a first blocking groove (331) is provided on the first spray nozzle (33), wherein the first blocking block (60) can be slidably connected to the first blocking groove (331), and the second blocking block (70) can be slidably connected to the first blocking groove (331).

7. The seismic device for an assembled steel frame according to claim 3, characterized in that: The invention also comprises a second guide rod (80), the second spraying member (40) comprises a second driving member (41), a second moving block (42) and a second spraying nozzle (43), the second guide rod (80) is fixedly connected to the supporting vertical plate (21), the second driving member (41) is electrically connected to the first sensor (221) and the second sensor (222), the second driving member (41) is fixedly connected to the supporting vertical plate (21), the second moving block (42) is fixedly connected to the output shaft of the driving member, the second moving block (42) is slidably connected to the second guide rod (80), and the second spraying nozzle (43) is fixedly connected to the second moving block (42).

8. The seismic device for an assembled steel frame according to claim 7, characterized in that: The second driving member (41) comprises a second motor (411) and a second screw rod (412); the second motor (411) is fixedly connected to the second screw rod (412); the second motor (411) is electrically connected to the first sensor (221) and the second sensor (222); and the second moving block (42) is slidably connected to the second screw rod (412).

9. The seismic device for an assembled steel frame according to claim 7, characterized in that: The invention also comprises a third blocking block (90) and a fourth blocking block (100), wherein the third blocking block (90) and the fourth blocking block (100) are respectively fixed at two ends of the second guide rod (80), and a second blocking groove (431) is provided on the second spray nozzle (43), and the third blocking block (90) can be slidably connected to the second blocking groove (431), and the fourth blocking block (100) can be slidably connected to the second blocking groove (431).

Images