U-shaped steel composite beam-concrete filled steel tubular column

Abstract

The invention discloses a U-shaped steel composite beam-concrete filled steel tubular column, and relates to the technical field of building construction. The concrete column comprises a concrete column body, T-shaped gusset plates are fixed to the four edges of the concrete column body, a U-shaped steel composite beam body is fixed to the outer portions of the T-shaped gusset plates through bolts, and a buffering device is arranged below the U-shaped steel composite beam body. The buffering device comprises eight fixing shaft seats, a threaded rod, three positioning connecting rods, a zigzag sliding frame, four supporting blocks and four fixing connecting plates. Through the arrangement of the buffer device, a threaded rod, a concentric-square-shaped sliding frame and other assemblies are matched, a buffer spring plate can buffer external force impact on joint assemblies of the concrete column body and the U-shaped steel composite beam body, the buffer spring plate can absorb part of impact energy, and the peak value of the impact force is reduced; therefore, direct impact on the concrete column main body and the U-shaped steel composite beam main body is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a U-shaped steel composite beam-steel tube concrete column. Background Art

[0002] Steel tube concrete column refers to a component formed by filling concrete in a steel tube. It is usually used as a compression column in a building structure. The node assembly of U-shaped steel composite beam and steel tube concrete column is a commonly used structural connection form in modern buildings. This node utilizes the superior force-bearing performance of the U-shaped steel beam and combines it with the high-strength characteristics of the steel tube concrete column to enhance the stability and seismic resistance of the overall structure. This design effectively improves construction efficiency, reduces material usage, and optimizes the shear and bending resistance of the structure.

[0003] A Chinese patent with patent announcement number CN220848067U discloses a connection node between a prefabricated steel tube type steel concrete column and a steel tube concrete beam, including a prefabricated steel tube type steel concrete column and a prefabricated steel tube concrete beam, and the connection node includes three connection methods, namely, a steel end plate-bolt connection or an extended short beam steel end plate-bolt connection or an external reinforcement ring connection; the patent proposes a connection node between a prefabricated steel tube type steel concrete column and a steel tube concrete beam, which can simplify the construction, not only speed up the construction progress, but also make the overall performance of the connection structure of the prefabricated steel tube type steel concrete column and the steel tube concrete beam superior, with good bearing capacity, ductility and seismic resistance.

[0004] However, the current node components have the following problems: the node components of the U-shaped steel composite beam and the steel tube concrete column are not convenient for buffering the external force. When impacted by external force, the impact force may not be effectively dispersed to the surrounding structure, resulting in excessive local force and increasing the risk of damage. Therefore, we propose a U-shaped steel composite beam-steel tube concrete column. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a U-shaped steel composite beam-steel tube concrete column, which solves the problem proposed in the above background technology that the node assembly of the U-shaped steel composite beam and the steel tube concrete column is not convenient for buffering the external force received. When impacted by external force, the impact force may not be effectively dispersed to the surrounding structure, resulting in excessive local force and increased risk of damage.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a U-shaped steel composite beam-steel tube concrete column, comprising a concrete column body, wherein T-shaped node plates are fixed at the four sides of the concrete column body, the outside of the T-shaped node plates is fixed with the U-shaped steel composite beam body by bolts, and a buffer device is arranged below the U-shaped steel composite beam body, wherein the buffer device comprises eight fixed shaft seats, a threaded rod, three positioning connecting rods, a return sliding frame, four support blocks, four fixed connecting plates, and four buffer spring plates, wherein the eight fixed shaft seats are respectively fixed at the four sides of the concrete column body, and two of the eight fixed shaft seats form a group, the threaded rod is rotatably installed at one group of fixed shaft seats, and the three positioning connecting rods are respectively fixed at the other three groups of fixed shaft seats, one side of the return sliding frame is threadedly connected to the outside of the threaded rod, and the other side of the return sliding frame is slidably installed on the outside of the positioning connecting rod, The four support blocks are respectively fixed on both sides of the circular sliding frame, the four fixed connecting plates are respectively fixed on the top of the four support blocks, the four buffer spring plates are respectively slidably installed on the top of the four support blocks, and a spring is provided between the buffer spring plate and the fixed connecting plate, the buffer spring plate contacts the outer wall of the U-shaped steel composite beam body, the threaded rod pushes the circular sliding frame to move upward along the outside of the positioning connecting rod, and the circular sliding frame drives the fixed connecting plate and the buffer spring plate to move upward through the support blocks until the fixed connecting plate and the buffer spring plate move to the U-shaped steel composite beam body, under the action of the spring elastic force corresponding to the buffer spring plate, the buffer spring plate will contact the outer wall of the U-shaped steel composite beam body, when the concrete column body and the U-shaped steel composite beam body are impacted by external force, under the spring elastic force corresponding to the buffer spring plate, the buffer spring plate will buffer the external force impact on the node components of the concrete column body and the U-shaped steel composite beam body.

[0007] According to the above technical solution, the buffer device also includes four guide inclined plates, which are respectively fixed on the top of four buffer spring plates. At the same time, when the circular sliding frame drives the fixed connecting plate and the buffer spring plate to move upward through the support block, the fixed connecting plate will drive the guide inclined plate to move upward, and the inclined surface of the guide inclined plate will first contact the bottom edge of the U-shaped steel composite beam body.

[0008] According to the above technical solution, the buffer device includes a plurality of plug posts, eight hinged connecting rods, four U-shaped slide plates, and four friction rough panels. The plurality of plug posts are evenly and equidistantly fixed on both sides of the four buffer spring plates. The four friction rough panels are respectively fixed on the side of the four fixed connecting plates away from the buffer spring plates. The four U-shaped slide plates are respectively slidably installed on the outside of the four fixed connecting plates. One end of the eight hinged connecting rods is respectively sleeved on the outside of a single plug post. The other ends of the eight hinged connecting rods are respectively hinged on both sides of the four U-shaped slide plates. The side of the U-shaped slide plate close to the fixed connecting plate is a rough surface. The friction rough panels The side away from the fixed connecting plate is provided with a rough surface, and the rough surface of the U-shaped slide plate is in contact with the rough surface of the friction rough panel. At the same time, when the buffer spring plate absorbs the external force applied to the U-shaped steel composite beam body, it tends to move toward the fixed connecting plate. The buffer spring plate pushes the hinged connecting rod through the plug column to drive the U-shaped slide plate to slide up and down along the outside of the fixed connecting plate. Under the friction force between the rough surface of the U-shaped slide plate and the rough surface of the friction rough panel, the U-shaped slide plate and the friction rough panel will consume the impact force exerted on the buffer spring plate. At the same time, the staff can connect the hinged connecting rod to the positions of different plug columns to switch the position of the U-shaped slide plate.

[0009] According to the above technical scheme, a friction device is provided on the side of the friction rough panel away from the fixed connecting plate, and the friction device includes a moving rod, a plurality of grinding columns, and two elastic telescopic rods, the fixed ends of the two elastic telescopic rods are fixed on the side of the U-shaped slide plate away from the fixed connecting plate, the moving rod is fixed to the telescopic ends of the two elastic telescopic rods, and a plurality of grinding columns are evenly and equidistantly fixed on the side of the moving rod close to the friction rough panel, and the end of the grinding column away from the moving rod is arranged in a spike shape, and the spike of the grinding column contacts the outer wall of the friction rough panel. At the same time, when the U-shaped slide plate has a tendency to slide up and down along the outside of the fixed connecting plate, the U-shaped slide plate drives the moving rod to move up and down through the elastic telescopic rod, and the moving rod drives the grinding column to move, and the spike of the grinding column will scratch the surface of the friction rough panel.

[0010] According to the above technical scheme, the friction device also includes a wavy groove plate and a fixed sliding column. The wavy groove plate is fixed on the side of the fixed connecting plate away from the buffer spring plate. A wavy groove is opened on the outside of the wavy groove plate. One end of the fixed sliding column is fixed on the side of the moving rod away from the friction rough plate. The other end of the fixed sliding column is slidably installed inside the wavy groove of the wavy groove plate. At the same time, the moving rod drives the fixed sliding column to move up and down, and the fixed sliding column slides along the wavy groove of the wavy groove plate. The fixed sliding column is restricted by the wavy groove of the wavy groove of the wavy groove plate. The wavy groove of the wavy groove plate will push the fixed sliding column to drive the moving rod to move left and right, and the moving rod drives the telescopic end of the elastic telescopic rod on one side to stretch, and the moving rod drives the telescopic end of the elastic telescopic rod on the other side to contract, and the moving rod drives the polishing column to move left and right.

[0011] According to the above technical scheme, an anti-rust device is arranged at the bottom of the circular sliding frame, and the anti-rust device includes a lubricating oil tank, an oil nozzle pipe, a pressing spring pump, an arc block plate, and a fixed arc block. The lubricating oil tank is fixed at the bottom of the circular sliding frame, and an oil inlet pipe is fixed at the outer wall of one side of the lubricating oil tank, and the staff can replenish the oil inside the lubricating oil tank through the oil inlet pipe. The oil nozzle pipe is fixed at the top of the lubricating oil tank, the pressing spring pump is fixed at one side of the lubricating oil tank close to the center of the concrete column body, the arc block plate is fixed at the pressing end of the pressing spring pump, the fixed arc block is fixed at the outer wall of a single fixed shaft seat, and a plurality of semi-arc blocks are fixed on the side of the arc block plate away from the pressing spring pump. The fixed arc block is located on the movement trajectory of the semi-arc block of the arc block plate, and the pressing spring pump It is used to control the lubricating oil in the lubricating oil tank to spray out from the nozzle of the oil spray nozzle pipe. When the circular sliding frame moves upward, the circular sliding frame drives the lubricating oil tank to move upward, and the lubricating oil tank drives the pressing spring pump and the arc block plate to move upward. When the semi-arc block of the arc block plate moves to the fixed arc block position, the fixed arc block pushes the semi-arc block of the arc block plate to squeeze the pressing end of the pressing spring pump, and the pressing spring pump controls the lubricating oil in the lubricating oil tank to spray out from the nozzle of the oil spray nozzle pipe. The sprayed lubricating oil will sprinkle on the T-shaped node plate, the concrete column body and the U-shaped steel composite beam body. When the fixed arc block no longer pushes the semi-arc block of the arc block plate, the pressing end of the pressing spring pump drives the arc block plate under the action of its own elastic force. At this time, the pressing spring pump no longer controls the lubricating oil in the lubricating oil tank to spray out from the nozzle of the oil spray nozzle pipe.

[0012] The present invention provides a U-shaped steel composite beam-steel tube concrete column. It has the following beneficial effects:

[0013] (1) The present invention arranges the buffer device so that the threaded rod, the circular sliding frame, the positioning connecting rod, the support block, the fixed connecting plate, and the buffer spring plate cooperate with each other, so that the buffer spring plate can buffer the impact of external force on the node assembly of the concrete column body and the U-shaped steel composite beam body. The buffer spring plate can absorb part of the impact energy and reduce the peak value of the impact force, thereby reducing the direct impact on the concrete column body and the U-shaped steel composite beam body.

[0014] (2) The present invention cooperates with the return sliding frame, the support block, the fixed connecting plate, and the buffer spring plate so that the inclined surface of the guide inclined plate will first contact the bottom edge of the U-shaped steel composite beam body, so that the guide inclined plate drives the buffer spring plate to adapt to the width of the U-shaped steel composite beam body and contact the outer wall of the U-shaped steel composite beam body. At the same time, the buffer spring plate, the U-shaped steel composite beam body, the fixed connecting plate, the plug column, the hinged connecting rod, and the U-shaped sliding plate cooperate so that the U-shaped sliding plate and the friction rough plate can consume the impact force on the buffer spring plate, thereby improving the buffering performance of the buffer spring plate;

[0015] (3) The present invention arranges a friction device so that the U-shaped slide plate, the fixed connecting plate, the elastic telescopic rod, and the moving rod cooperate to drive the grinding column to move. The sharp spikes of the grinding column will scratch the surface of the friction rough panel, thereby increasing the contact area between the U-shaped slide plate and the friction rough panel, thereby improving the friction force of the friction rough panel, and further facilitating the U-shaped slide plate and the friction rough panel to consume the impact force exerted on the buffer spring plate; at the same time, the moving rod, the fixed sliding column, and the wavy groove plate cooperate to drive the sharp spikes of the grinding column to scratch the surface of the friction rough panel in a left-right wavy manner, thereby further improving the friction force of the friction rough panel.

[0016] (4) The present invention provides an anti-rust device so that the circular sliding frame, the lubricating oil tank, the pressure spring pump, and the arc block plate cooperate to drive the pressure spring pump to control the lubricating oil in the lubricating oil tank to be sprayed out from the nozzle of the oil spray nozzle pipe. The sprayed lubricating oil will be sprinkled on the T-shaped node plate, the concrete column body and the U-shaped steel composite beam body. The lubricating oil forms a protective film on the metal surface, which helps to prevent the metal parts of the concrete column body and the U-shaped steel composite beam body from rusting and corrosion, thereby improving their durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is schematically shown as a whole Figure 1 ;

[0018] Figure 2 The present invention is schematically shown as a whole Figure 2 ;

[0019] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0020] Figure 4 Schematic diagram of the buffer device of the present invention Figure 1 ;

[0021] Figure 5 Schematic diagram of the buffer device of the present invention Figure 2 ;

[0022] Figure 6 It is a partial structural schematic diagram of the buffer device of the present invention;

[0023] Figure 7 is a schematic diagram of the friction device of the present invention;

[0024] Figure 8 For the present invention Figure 7 A schematic diagram of the structure at A;

[0025] Fig. 9 Schematic diagram of the rust prevention device of the present invention Figure 1 ;

[0026] Fig.10 Schematic diagram of the rust prevention device of the present invention Figure 2 .

[0027] In the figure: 1. Concrete column body; 2. U-shaped steel composite beam body; 3. T-shaped node plate; 4. Buffer device; 41. Fixed shaft seat; 42. Threaded rod; 43. Positioning connecting rod; 44. Reciprocating sliding frame; 45. Support block; 46. Fixed connecting plate; 47. Buffer spring plate; 48. Guide inclined plate; 49. Insert column; 410. Articulated connecting rod; 411. U-shaped sliding plate; 412. Friction rough panel; 5. Friction device; 51. Moving rod; 52. Wave-shaped groove plate; 53. Polishing column; 54. Elastic telescopic rod; 55. Fixed sliding column; 6. Anti-rust device; 61. Lubricating oil tank; 62. Injection nozzle pipe; 63. Press spring pump; 64. Arc block plate; 65. Fixed arc block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figure 1 - Fig.10The present invention provides a U-shaped steel composite beam-steel tube concrete column, including a concrete column body 1, T-shaped node plates 3 are fixed at the four sides of the concrete column body 1, and a U-shaped steel composite beam body 2 is fixed to the outside of the T-shaped node plate 3 by bolts. A buffer device 4 is arranged below the U-shaped steel composite beam body 2, and the buffer device 4 includes eight fixed shaft seats 41, a threaded rod 42, three positioning connecting rods 43, a return sliding frame 44, four support blocks 45, four fixed connecting plates 46, and four buffer spring plates 47. The eight fixed shaft seats 41 are respectively fixed at the four sides of the concrete column body 1, and two of the eight fixed shaft seats 41 form a group. The threaded rod 42 is rotatably installed at one group of fixed shaft seats 41, and the three positioning connecting rods 43 are respectively fixed at the other three groups of fixed shaft seats 41. One side of the return sliding frame 44 is threadedly connected to the outside of the threaded rod 42, and the other side of the return sliding frame 44 is slidably installed on the outside of the positioning connecting rod 43. The support blocks 45 are fixed on both sides of the circular sliding frame 44, respectively, and the four fixed connecting plates 46 are fixed on the tops of the four support blocks 45, respectively. The four buffer spring plates 47 are slidably installed on the tops of the four support blocks 45, and springs are provided between the buffer spring plates 47 and the fixed connecting plates 46. The buffer spring plates 47 are in contact with the outer wall of the U-shaped steel composite beam body 2. Through the setting of the above structure, under the action of the spring elastic force corresponding to the buffer spring plates 47, the buffer spring plates 47 will contact the outer wall of the U-shaped steel composite beam body 2. When the concrete column body 1 and the U-shaped steel composite beam body 2 are impacted by external force, under the spring elastic force corresponding to the buffer spring plates 47, the buffer spring plates 47 will buffer the node components of the concrete column body 1 and the U-shaped steel composite beam body 2 that are impacted by external force. The buffer spring plates 47 can absorb part of the impact energy and reduce the peak value of the impact force, thereby reducing the direct impact on the concrete column body 1 and the U-shaped steel composite beam body 2.

[0030] The buffer device 4 also includes four guide inclined plates 48, and the four guide inclined plates 48 are respectively fixed on the top of the four buffer spring plates 47. Through the setting of the above-mentioned structure, the fixed connecting plate 46 drives the guide inclined plates 48 to move upward, and the inclined surface of the guide inclined plates 48 will first contact the bottom edge of the U-shaped steel composite beam body 2, so that the guide inclined plates 48 drive the buffer spring plates 47 to adapt to the width of the U-shaped steel composite beam body 2 and contact the outer wall of the U-shaped steel composite beam body 2.

[0031] The buffer device 4 includes a plurality of plug posts 49, eight hinged connecting rods 410, four U-shaped slide plates 411, and four friction rough panels 412. The plurality of plug posts 49 are evenly and equidistantly fixed on both sides of the four buffer spring plates 47. The four friction rough panels 412 are respectively fixed on the side of the four fixed connecting plates 46 away from the buffer spring plates 47. The four U-shaped slide plates 411 are respectively slidably installed on the outside of the four fixed connecting plates 46. One end of the eight hinged connecting rods 410 is respectively sleeved on the outside of a single plug post 49. The other ends of the eight hinged connecting rods 410 are respectively hinged on both sides of the four U-shaped slide plates 411. The side of the U-shaped slide plate 411 close to the fixed connecting plate 46 is a rough surface. The side of the friction rough panel 412 away from the fixed connecting plate 46 is set as a rough surface, and the rough surface of the U-shaped slide plate 411 is in contact with the rough surface of the friction rough panel 412. Through the setting of the above structure, the U-shaped slide plate 411 and the friction rough panel 412 will consume the impact force received by the buffer spring plate 47, thereby improving the buffering performance of the buffer spring plate 47. At the same time, the staff can connect the hinged connecting rod 410 to the position of different plug columns 49 to switch the position of the U-shaped slide plate 411, thereby avoiding the problem that the rough surface of the U-shaped slide plate 411 and the rough surface of the friction rough panel 412 continue to rub at the same position, resulting in the friction rough panel 412 being partially polished.

[0032] A friction device 5 is provided on the side of the friction rough panel 412 away from the fixed connecting plate 46, and the friction device 5 includes a moving rod 51, a plurality of grinding columns 53, and two elastic telescopic rods 54. The fixed ends of the two elastic telescopic rods 54 are fixed on the side of the U-shaped slide plate 411 away from the fixed connecting plate 46, the moving rod 51 is fixed to the telescopic ends of the two elastic telescopic rods 54, and a plurality of grinding columns 53 are evenly and equidistantly fixed on the side of the moving rod 51 close to the friction rough panel 412. The end of the grinding column 53 away from the moving rod 51 is arranged in a spike shape, and the spike of the grinding column 53 contacts the outer wall of the friction rough panel 412. Through the arrangement of the above structure, the spike of the grinding column 53 will scratch the surface of the friction rough panel 412, thereby increasing the contact area between the U-shaped slide plate 411 and the friction rough panel 412, thereby improving the friction force of the friction rough panel 412, which is beneficial to the U-shaped slide plate 411 and the friction rough panel 412 to consume the impact force exerted on the buffer spring plate 47.

[0033] The friction device 5 also includes a wavy groove plate 52 and a fixed sliding column 55. The wavy groove plate 52 is fixed to the side of the fixed connecting plate 46 away from the buffer spring plate 47. A wavy groove is provided on the outside of the wavy groove plate 52. One end of the fixed sliding column 55 is fixed to the side of the moving rod 51 away from the friction rough panel 412. The other end of the fixed sliding column 55 is slidably installed inside the wavy groove of the wavy groove plate 52. Through the arrangement of the above structure, the fixed sliding column 55 is restricted by the wavy groove of the wavy groove plate 52. The wavy groove of the wavy groove plate 52 will push the fixed sliding column 55 to drive the moving rod 51 to move left and right, and the moving rod 51 will drive the grinding column 53 to move left and right, so that the spikes of the grinding column 53 will scratch the surface of the friction rough panel 412 in a left and right wavy manner, thereby further improving the friction of the friction rough panel 412.

[0034] When in use, the T-shaped node plate 3 is fixed to the outside of the concrete column body 1 by bolts, and then the U-shaped steel composite beam body 2 is fixed to the outside of the T-shaped node plate 3 by bolts, and the threaded rod 42 is rotated, and the threaded rod 42 pushes the return sliding frame 44 to move upward along the outside of the positioning link 43, and the return sliding frame 44 drives the fixed connecting plate 46 and the buffer spring plate 47 to move upward through the support block 45 until the fixed connecting plate 46 and the buffer spring plate 47 move to the U-shaped steel composite beam body 2, and under the action of the spring force corresponding to the buffer spring plate 47, the buffer spring plate 47 will be in contact with the U The outer wall of the U-shaped steel composite beam body 2 is in contact. When the concrete column body 1 and the U-shaped steel composite beam body 2 are impacted by external force, the spring force corresponding to the buffer spring plate 47 will buffer the impact of the node components of the concrete column body 1 and the U-shaped steel composite beam body 2. The buffer spring plate 47 can absorb part of the impact energy and reduce the peak value of the impact force, thereby reducing the direct impact on the concrete column body 1 and the U-shaped steel composite beam body 2; at the same time, when the circular sliding frame 44 drives the fixed connecting plate 46 and the buffer spring plate 47 to move upward through the support block 45 The fixed connecting plate 46 will drive the guide inclined plate 48 to move upward, and the inclined surface of the guide inclined plate 48 will first contact the bottom edge of the U-shaped steel composite beam body 2, so that the guide inclined plate 48 drives the buffer spring plate 47 to adapt to the width of the U-shaped steel composite beam body 2 and contact the outer wall of the U-shaped steel composite beam body 2; at the same time, when the buffer spring plate 47 absorbs the external force of the U-shaped steel composite beam body 2, it will tend to move toward the fixed connecting plate 46, and the buffer spring plate 47 pushes the hinged connecting rod 410 through the plug column 49 to drive the U-shaped slide plate 411 to move upward along the outer surface of the fixed connecting plate 46 The U-shaped slide plate 411 and the rough friction surface 412 have a tendency to slide downward. Under the friction force between the rough surface of the U-shaped slide plate 411 and the rough friction surface 412, the U-shaped slide plate 411 and the rough friction surface 412 will consume the impact force on the buffer spring plate 47, thereby improving the buffering performance of the buffer spring plate 47. At the same time, the staff can connect the hinged connecting rod 410 to the positions of different plug posts 49 to switch the position of the U-shaped slide plate 411, thereby avoiding the problem that the rough surface of the U-shaped slide plate 411 and the rough surface of the friction rough surface 412 continue to rub at the same position, resulting in the friction rough surface 412 being partially worn smooth.

[0035] At the same time, when the U-shaped slide plate 411 tends to slide up and down along the outside of the fixed connecting plate 46, the U-shaped slide plate 411 drives the moving rod 51 to move up and down through the elastic telescopic rod 54, and the moving rod 51 drives the grinding column 53 to move along, and the spikes of the grinding column 53 will scratch the surface of the friction rough panel 412, thereby increasing the contact area between the U-shaped slide plate 411 and the friction rough panel 412, thereby increasing the friction force of the friction rough panel 412, and then facilitating the U-shaped slide plate 411 and the friction rough panel 412 to consume the impact force on the buffer spring plate 47; at the same time, the moving rod 51 drives the fixed sliding column 55 to move up and down, and the fixed connecting plate 46 The fixed sliding column 55 slides along the wavy groove of the wavy groove plate 52, and the fixed sliding column 55 is restricted by the wavy groove of the wavy groove plate 52. The wavy groove of the wavy groove plate 52 will push the fixed sliding column 55 to drive the moving rod 51 to move left and right, and the moving rod 51 drives the telescopic end of the elastic telescopic rod 54 on one side to stretch, and the moving rod 51 pushes the telescopic end of the elastic telescopic rod 54 on the other side to contract, and the moving rod 51 drives the polishing column 53 to move left and right, so that the spikes of the polishing column 53 will scratch the surface of the friction rough panel 412 in a left and right wavy manner, thereby further increasing the friction of the friction rough panel 412.

[0036] See also Figure 1 - Fig.10 On the basis of the above embodiment, in another embodiment of the present invention, a rust prevention device 6 is provided below the circular sliding frame 44 .

[0037] The rust prevention device 6 includes a lubricating oil tank 61, an oil nozzle pipe 62, a pressure spring pump 63, an arc block plate 64, and a fixed arc block 65. The lubricating oil tank 61 is fixed at the bottom of the circular sliding frame 44, and an oil inlet pipe is fixed on the outer wall of one side of the lubricating oil tank 61. The staff can replenish the oil inside the lubricating oil tank 61 through the oil inlet pipe. The oil nozzle pipe 62 is fixed on the top of the lubricating oil tank 61, and a plurality of oil nozzles are fixed on the outer wall of the oil nozzle pipe 62, and the oil nozzles of the oil nozzle pipe 62 are set in the direction of the concrete column body 1. The pressure spring pump 63 is fixed on one side of the lubricating oil tank 61 close to the center of the concrete column body 1, the arc block plate 64 is fixed on the pressing end of the pressure spring pump 63, the fixed arc block 65 is fixed on the outer wall of a single fixed shaft seat 41, and the arc block plate 64 is far A plurality of semi-arc blocks are fixed on one side of the pressing spring pump 63, and the fixed arc block 65 is located on the semi-arc block movement trajectory of the arc block plate 64. The pressing spring pump 63 is used to control the lubricating oil in the lubricating oil tank 61 to be sprayed out from the nozzle of the oil nozzle pipe 62. Through the arrangement of the above structure, the fixed arc block 65 pushes the semi-arc block of the arc block plate 64 to squeeze the pressing end of the pressing spring pump 63, and the pressing spring pump 63 controls the lubricating oil in the lubricating oil tank 61 to be sprayed out from the nozzle of the oil nozzle pipe 62. The sprayed lubricating oil will be sprinkled on the T-shaped node plate 3, the concrete column body 1 and the U-shaped steel composite beam body 2. The lubricating oil forms a protective film on the metal surface, which helps to prevent the metal parts of the concrete column body 1 and the U-shaped steel composite beam body 2 from rusting and corrosion, thereby improving their durability.

[0038] When in use, when the circular sliding frame 44 moves upward, the circular sliding frame 44 drives the lubricating oil tank 61 to move upward, and the lubricating oil tank 61 drives the pressing spring pump 63 and the arc block plate 64 to move upward. When the semi-arc block of the arc block plate 64 moves to the position of the fixed arc block 65, the fixed arc block 65 pushes the semi-arc block of the arc block plate 64 to squeeze the pressing end of the pressing spring pump 63, and the pressing spring pump 63 controls the lubricating oil in the lubricating oil tank 61 to spray out from the nozzle of the oil spray nozzle pipe 62, and the sprayed lubricating oil will be sprinkled on the T-shaped node plate 3, the mixed At the concrete column body 1 and the U-shaped steel composite beam body 2, the lubricating oil forms a protective film on the metal surface, which helps to prevent the metal parts of the concrete column body 1 and the U-shaped steel composite beam body 2 from rusting and corrosion, thereby improving their durability. When the fixed arc block 65 no longer pushes the half arc block of the arc block plate 64, under the action of the self-elastic force of the pressing spring pump 63, the pressing end of the pressing spring pump 63 drives the arc block plate 64. At this time, the pressing spring pump 63 no longer controls the lubricating oil in the lubricating oil tank 61 to be sprayed out from the nozzle of the oil injection nozzle pipe 62.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A U-shaped steel composite beam-concrete-filled steel tube column, comprising a concrete column body (1), four sides of the concrete column body (1) are fixed with T-shaped node plates (3), the outside of the T-shaped node plates (3) is fixed with a U-shaped steel composite beam body (2) by bolts, characterized in that: A buffer device (4) is provided below the U-shaped steel composite beam body (2), and the buffer device (4) comprises eight fixed shaft seats (41), a threaded rod (42), three positioning connecting rods (43), a circular sliding frame (44), four support blocks (45), four fixed connecting plates (46), and four buffer spring plates (47). The eight fixed shaft seats (41) are respectively fixed at the four sides of the concrete column body (1), and two of the eight fixed shaft seats (41) form a group. The threaded rod (42) is rotatably mounted on one group of fixed shaft seats (41), and the three positioning connecting rods (43) are respectively fixed on the other three groups of fixed shaft seats ( 41), one side of the circular sliding frame (44) is threadedly connected to the outside of the threaded rod (42), and the other side of the circular sliding frame (44) is slidably installed on the outside of the positioning connecting rod (43), the four support blocks (45) are respectively fixed on both sides of the circular sliding frame (44), the four fixed connecting plates (46) are respectively fixed on the top of the four support blocks (45), and the four buffer spring plates (47) are respectively slidably installed on the top of the four support blocks (45), and a spring is provided between the buffer spring plate (47) and the fixed connecting plate (46), and the buffer spring plate (47) contacts the outer wall of the U-shaped steel composite beam body (2).

2. A U-shaped steel composite beam-concrete-filled steel tube column according to claim 1, characterized in that: The buffer device (4) further comprises four guide inclined plates (48), wherein the four guide inclined plates (48) are respectively fixed on the tops of four buffer spring plates (47).

3. The U-shaped steel composite beam-concrete-filled steel tube column according to claim 1, characterized in that: The buffer device (4) comprises a plurality of plug posts (49), eight hinged connecting rods (410), four U-shaped slide plates (411), and four friction rough panels (412). The plurality of plug posts (49) are evenly and equidistantly fixed on both sides of the four buffer spring plates (47). The four friction rough panels (412) are respectively fixed on the side of the four fixed connecting plates (46) away from the buffer spring plates (47). The four U-shaped slide plates (411) are respectively slidably installed on the outside of the four fixed connecting plates (46). One end of the eight hinged connecting rods (410) is respectively sleeved on the outside of a single plug post (49), and the other ends of the eight hinged connecting rods (410) are respectively hinged on both sides of the four U-shaped slide plates (411).

4. The U-shaped steel composite beam-concrete-filled steel tube column according to claim 3, characterized in that: The side of the U-shaped slide plate (411) close to the fixed connecting plate (46) is provided with a rough surface, and the side of the friction rough plate (412) away from the fixed connecting plate (46) is provided with a rough surface, and the rough surface of the U-shaped slide plate (411) is in contact with the rough surface of the friction rough plate (412).

5. The U-shaped steel composite beam-concrete-filled steel tube column according to claim 3, characterized in that: A friction device (5) is provided on the side of the friction rough panel (412) away from the fixed connecting plate (46), and the friction device (5) comprises a moving rod (51), a plurality of grinding columns (53), and two elastic telescopic rods (54), wherein the fixed ends of the two elastic telescopic rods (54) are both fixed on the side of the U-shaped slide plate (411) away from the fixed connecting plate (46), the moving rod (51) is fixed on the telescopic ends of the two elastic telescopic rods (54), and the plurality of grinding columns (53) are evenly and equidistantly fixed on the side of the moving rod (51) close to the friction rough panel (412).

6. The U-shaped steel composite beam-concrete-filled steel tube column according to claim 5, characterized in that: The end of the grinding column (53) away from the moving rod (51) is arranged in a spike shape, and the spike shape of the grinding column (53) contacts the outer wall of the friction rough panel (412).

7. The U-shaped steel composite beam-concrete-filled steel tube column according to claim 5, characterized in that: The friction device (5) further comprises a wavy groove plate (52) and a fixed sliding column (55). The wavy groove plate (52) is fixed to a side of the fixed connecting plate (46) away from the buffer spring plate (47). A wavy groove is provided on the outside of the wavy groove plate (52). One end of the fixed sliding column (55) is fixed to a side of the moving rod (51) away from the friction rough plate (412). The other end of the fixed sliding column (55) is slidably mounted inside the wavy groove of the wavy groove plate (52).

8. The U-shaped steel composite beam-concrete-filled steel tube column according to claim 1, characterized in that: A rust prevention device (6) is provided below the circular sliding frame (44), and the rust prevention device (6) comprises a lubricating oil tank (61), an oil nozzle pipe (62), a pressure spring pump (63), an arc block plate (64), and a fixed arc block (65). The lubricating oil tank (61) is fixed to the bottom of the circular sliding frame (44), the oil nozzle pipe (62) is fixed to the top of the lubricating oil tank (61), the pressure spring pump (63) is fixed to a side of the lubricating oil tank (61) close to the center of the concrete column body (1), the arc block plate (64) is fixed to the pressing end of the pressure spring pump (63), and the fixed arc block (65) is fixed to the outer wall of the single fixed shaft seat (41).

9. The U-shaped steel composite beam-concrete-filled steel tube column according to claim 8, characterized in that: A plurality of semi-arc blocks are fixed on a side of the arc block plate (64) away from the pressing spring pump (63), and the fixed arc block (65) is located on the semi-arc block movement track of the arc block plate (64).

10. The U-shaped steel composite beam-concrete-filled steel tube column according to claim 8, characterized in that: The pressure spring pump (63) is used to control the lubricating oil in the lubricating oil tank (61) to be sprayed out from the nozzle of the oil spray nozzle pipe (62).

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