Full-prefabricated assembly type steel pipe constraint frame joint

Abstract

The invention discloses a full-prefabricated assembly type steel pipe constraint frame joint, and belongs to the technical field of building components. The full-prefabricated assembly type steel pipe constraint frame joint comprises a pouring steel pipe and a plurality of vertically-arranged first steel plates, the first steel plates are arranged on the peripheral side of the pouring steel pipe and are welded in pairs, second steel plates are welded to the opposite sides of the first steel plates, cross beams are welded to the vertical side faces of the first steel plates, and the first steel plates are provided with interlayers; a first steel plate interlayer is arranged in the first steel plate, a plurality of sets of first cushioning pieces are arranged in the interlayer, each first cushioning piece comprises a first cushioning rod, a second cushioning rod is hinged to the end of each first cushioning rod, a pair of sliding blocks is arranged in the first steel plate interlayer, and the pair of sliding blocks is arranged in the first steel plate interlayer in a sliding mode. And when the cross beam vibrates, the vibration force is conducted, so that the vibration force acts on the steel plate, and the vibration force is prevented from cutting into the concrete column to influence the bearing of the concrete column.

Description

Technical Field

[0001] The invention relates to the technical field of building components, and in particular to a fully prefabricated assembled steel pipe restrained frame node. Background Art

[0002] Prefabricated structure refers to a construction method in which building components are pre-manufactured in a factory or production base and then transported to the site for assembly. Compared with traditional on-site construction methods, this construction method has higher efficiency, faster construction speed and better quality control. When assembling these building components, in order to improve assembly efficiency, steel tube constrained frame nodes are required.

[0003] The reliability and operability of the component node connection method in prefabricated assembled structures directly affect the overall performance and construction speed of the assembled structures, and are also key technologies that affect the continued development of assembled reinforced concrete structures.

[0004] Traditional prefabricated frame nodes and peripheral cross beams are usually connected by bolts. When the end of the cross beam is subjected to force, the shear force at the end of the beam is transmitted to the core area concrete through the bolts, and the concrete in contact with the bolt rod is prone to local compressive damage. In addition, the reliability of its force transmission is limited by the quality of the bolts and the construction quality, so that its shear resistance cannot be guaranteed. The existing prefabricated frame nodes are improved by setting vertical steel plates on the peripheral sides of the core area frame and welding the cross beams directly to the vertical steel plates. Although this can solve the problems caused by the original use of bolts to connect the cross beams to the frame nodes, it does not reasonably handle the shear force on the cross beams. This shear force at the end of the beam is first transmitted to the steel plate, and the shear force is transmitted to the concrete column through the steel plate. Because the concrete column is a rigid body, the shear force cannot be properly handled and will squeeze the concrete column, causing cracks in the concrete column. Summary of the invention

[0005] The purpose of the present invention is to overcome the problems in the prior art and provide a fully prefabricated steel pipe constraint frame node to reasonably conduct the shear force and vibration force generated by the beam to prevent the shear force and vibration force from directly entering the concrete column.

[0006] The present invention provides a fully prefabricated and assembled steel pipe restraint frame node, comprising a cast steel pipe and a plurality of first steel plates arranged vertically, wherein the plurality of first steel plates are arranged on the periphery of the cast steel pipe and welded to each other in pairs, and further comprising a pair of second steel plates arranged horizontally, wherein the pair of second steel plates are respectively welded to the upper and lower sides of the plurality of first steel plates, and the pair of second steel plates are fixedly sleeved on the cast steel pipe, and beams are welded on the vertical side surfaces of the first steel plates, and the first steel plate is provided with an interlayer, wherein a plurality of groups of first shock absorbing members are arranged in a one-to-one correspondence with the plurality of beams, and the first shock absorbing member comprises a first shock absorbing rod arranged horizontally, wherein one end of the first shock absorbing rod penetrates the first steel plate and is fixedly connected to the beam, and a second shock absorbing rod is hingedly connected to the end of the first shock absorbing rod, and a pair of sliders are arranged in the interlayer of the first steel plate, wherein the pair of sliders are both slidably arranged in the interlayer of the first steel plate, and the slider and the second shock absorbing rod are hingedly connected through a hinged rod, and a first shock absorbing spring is fixedly connected to one side of the slider, and one end of the first shock absorbing spring is fixedly connected to the first steel plate.

[0007] Preferably, the second shock-absorbing rod slides away from one end of the first shock-absorbing rod and penetrates the first steel plate, and one end of the second shock-absorbing rod is fixedly connected to a second shock-absorbing component, and the second shock-absorbing component includes a connecting cap fixedly embedded in the end of the second shock-absorbing rod, and a plurality of second buffer springs are arranged around the connecting cap, and the plurality of second buffer springs are all inclined, one end is fixedly connected to the second shock-absorbing rod, and the other end is fixedly connected to the first steel plate.

[0008] Preferably, a plurality of insertion rods are slidably inserted around the first shock-absorbing rod and the second shock-absorbing rod. The insertion rod is placed in the first shock-absorbing rod and fixedly connected to a blocking block, and the other end is fixedly connected to a baffle. A third shock-absorbing spring is sleeved on the insertion rod, and one end of the third shock-absorbing spring is fixedly connected to the baffle, and the other end is fixedly connected to the first shock-absorbing rod.

[0009] Preferably, a plurality of steel sleeves are vertically inserted on the second steel plate, and steel bars are inserted in the steel sleeves.

[0010] Preferably, the cross beam comprises a shear web, upper longitudinal reinforcement and bottom longitudinal reinforcement, and the shear web is arranged between the upper longitudinal reinforcement and the bottom longitudinal reinforcement.

[0011] Preferably, the cross beam is fixedly connected to a connecting steel plate at one end away from the first steel plate, the connecting steel plate is fixedly connected to an H-shaped steel beam for connecting a prefabricated beam or a damper, and a plurality of bolt holes are opened on the flange of the H-shaped steel beam.

[0012] Preferably, the cross beam further comprises stirrups for fixing the shear web, the upper longitudinal reinforcement and the bottom longitudinal reinforcement.

[0013] Preferably, reinforcement plates are fixedly connected around the connection between the cross beam and the first steel plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: a fully prefabricated steel pipe restraint frame node of the present invention has a plurality of first steel plates arranged around the cast steel pipe, and when the cross beam is vibrated, the vibration force is transmitted to the inside of the first steel plate, thereby preventing the vibration force from directly acting on the concrete column and causing damage to the inside of the concrete;

[0015] In the present invention, the first steel plate is provided with an interlayer, and a first shock absorbing component is arranged in the interlayer. When the cross beam is vibrated, the connection between the cross beam and the first steel plate will be vibrated. At this time, the first shock absorbing component will release the vibration force received at the connection between the two. The vibration force will be transmitted to the slider through the first shock absorbing rod and the second shock absorbing rod, and the first shock absorbing spring arranged on the slider will perform preliminary release.

[0016] A second shock-absorbing member is provided at the end of the second shock-absorbing rod, and the second shock-absorbing member can further absorb the remaining shock force, thereby further reducing the impact of the shock force and shear force on the concrete column in the central area when the beam vibrates, thereby protecting the concrete column. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the first shock absorbing component of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the second shock-absorbing component of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the slider and the first shock absorbing spring of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the insertion rod and the third spring of the present invention.

[0022] Figure 6 It is a schematic diagram of the internal structure of the beam of the present invention.

[0023] Explanation of the accompanying drawings: 1. cast steel pipe; 2. first steel plate; 3. second steel plate; 4. crossbeam; 41. shear web; 42. upper longitudinal reinforcement; 43. bottom longitudinal reinforcement; 5. first shock-absorbing member; 51. first shock-absorbing rod; 52. second shock-absorbing rod; 53. slider; 54. first shock-absorbing spring; 55. hinged rod; 6. second shock-absorbing member; 61. connecting cap; 62. second shock-absorbing spring; 7. inserted rod; 8. blocking block; 9. third shock-absorbing spring; 10. baffle; 11. steel casing; 12. steel bar; 13. connecting steel plate; 14. H-shaped steel beam; 15. bolt hole; 16. stirrups; 17. reinforcement plate. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1 to Figure 6 In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the present invention belongs.

[0025] The words "first", "second" and similar words used in the specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. "Inside", "outside", "upper", "lower", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in the present invention are not drawn strictly according to the actual scale. The specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only schematic diagrams of the structure.

[0026] The present invention provides a fully prefabricated steel pipe restraint frame node, such as Figure 1 to Figure 4As shown, it includes a cast steel pipe 1 and a plurality of first steel plates 2 arranged vertically, wherein the plurality of first steel plates 2 are arranged on the periphery of the cast steel pipe 1 and welded to each other in pairs, and further includes a pair of second steel plates 3 arranged horizontally, wherein the pair of second steel plates 3 are respectively welded to the upper and lower sides of the plurality of first steel plates 2, and the pair of second steel plates 3 are fixedly sleeved on the cast steel pipe 1, and beams 4 are welded on the vertical sides of the first steel plates 2, and the first steel plates 2 are provided with interlayers, and a plurality of groups of first shock absorbing members 5 are provided in the interlayers, and the plurality of groups of first shock absorbing members 5 correspond one to one with the plurality of beams 4 The first shock-absorbing component 5 is configured to include a first shock-absorbing rod 51 that is horizontally arranged, one end of the first shock-absorbing rod 51 passes through the first steel plate 2 and is fixedly connected to the cross beam 4, a second shock-absorbing rod 52 is hinged to the end of the first shock-absorbing rod 51, a pair of sliders 53 are provided in the interlayer of the first steel plate 2, the pair of sliders 53 are both slidably arranged in the interlayer of the first steel plate 2, the slider 53 and the second shock-absorbing rod 52 are hinged by a hinge rod 55, a first shock-absorbing spring 54 is fixedly connected to one side of the slider 53, and one end of the first shock-absorbing spring 54 is fixedly connected to the first steel plate 2.

[0027] A fully prefabricated steel pipe restraint frame node of the present invention has a plurality of first steel plates 2 arranged around the cast steel pipe 1. When the cross beam 4 is vibrated, the vibration force is transmitted to the inside of the first steel plate 2, thereby preventing the vibration force from directly acting on the concrete column and causing damage to the inside of the concrete.

[0028] In the present invention, the first steel plate 2 is provided with an interlayer, and a first shock absorbing component is arranged in the interlayer. When the cross beam 4 is vibrated, the connection between the cross beam 4 and the first steel plate 2 will be vibrated. At this time, the first shock absorbing component 1 will release the vibration force received at the connection between the two, and the vibration force will be transmitted to the slider 53 through the first shock absorbing rod 51 and the second shock absorbing rod 52, and the first shock absorbing spring 54 arranged on the slider 53 will perform preliminary release.

[0029] The second shock absorbing member 6 is provided at the end of the second shock absorbing rod 52, and the second shock absorbing member 6 can further buffer the remaining shock force, thereby further reducing the influence of the shock force and shear force on the concrete column in the central area when the cross beam 4 vibrates, protecting the concrete column and protecting the effective bearing capacity of the concrete column;

[0030] For example, when an earthquake occurs, the cross beam 4 will vibrate. At this time, the vibration force generated by the cross beam 4 will be transmitted to the connection with the first steel plate 2. At this time, the vibration force will be transmitted to the second shock-absorbing rod 52 through the first shock-absorbing rod 51. Because the second shock-absorbing rod 52 is hinged to the first shock-absorbing rod 51, and the second shock-absorbing rod 52 is hinged to the slider 53, the second shock-absorbing rod 52 will transmit the vibration force it receives to the first shock-absorbing spring 54 through the hinged rod 55 and the slider 53, and the first shock-absorbing spring 54 will perform preliminary relief.

[0031] Preferably, Figure 1 to Figure 4As shown, the second shock-absorbing rod 52 slides away from one end of the first shock-absorbing rod 51 and penetrates the first steel plate 2. One end of the second shock-absorbing rod 52 is fixedly connected to the second shock-absorbing component 6. The second shock-absorbing component 6 includes a connecting cap 61, which is fixedly embedded in the end of the second shock-absorbing rod 52. A plurality of second buffer springs 62 are arranged around the connecting cap 61. The plurality of second buffer springs 62 are all inclinedly arranged, one end is fixedly connected to the second shock-absorbing rod 52, and the other end is fixedly connected to the first steel plate 2.

[0032] One end of the second shock-absorbing rod 52 passes through the first steel plate 2, and a connecting cap 61 is fixedly mounted on the end. When the second shock-absorbing rod 52 is offset, the second shock-absorbing spring arranged on the side of the connecting cap 61 will further cushion the vibration force exerted on the second shock-absorbing rod 52, thereby further protecting the concrete column. The first shock-absorbing component 5 and the second shock-absorbing component 6 work together to reduce the impact of the vibration of the beam 4 on the concrete column, thereby reducing the vibration force exerted on the concrete column. In addition, the steel plate is not in direct contact with the concrete column, thereby effectively preventing the remaining vibration force from entering the concrete column and causing damage to the interior thereof.

[0033] Preferably, Figure 1 to Figure 6 As shown, a plurality of steel sleeves 11 are vertically inserted on the second steel plate 3, and steel bars 12 are inserted in the steel sleeves 11. The cross beam 4 includes a shear web 41, upper longitudinal bars 42 and bottom longitudinal bars 43, and the shear web 41 is arranged between the upper longitudinal bars 42 and the bottom longitudinal bars 43.

[0034] In the present invention, a plurality of steel sleeves 11 are inserted on the second steel plate 3 to connect the upper column and the lower column. The steel bars 12 are inserted in the sleeved steel pipes. When pouring in the casting steel pipe 1, pouring in the sleeved steel pipe is also performed at the same time. The steel sleeves 11 and the steel bars 12 are cast as one, thereby further improving the connection protection group capacity of the concrete column and increasing the bearing capacity of the concrete column.

[0035] Preferably, Figure 1 to Figure 5As shown, a plurality of insert rods 7 are slidably inserted on the circumference of the first shock absorbing rod 51 and the second shock absorbing rod 52. The insert rod 7 is placed in the first shock absorbing rod 51 and is fixedly connected to a blocking block 8. The other end is fixedly connected to a baffle 10. A third shock absorbing spring 9 is sleeved on the insert rod 7. One end of the third shock absorbing spring 9 is fixedly connected to the baffle 10, and the other end is fixedly connected to the first shock absorbing rod 51. The cross beam 4 includes a shear web 41, an upper longitudinal rib 42 and a bottom longitudinal rib 43. The shear web 41 is arranged on the upper Between the upper longitudinal reinforcement 42 and the bottom longitudinal reinforcement 43, the end of the cross beam 4 away from the first steel plate 2 is fixedly connected with a connecting steel plate 13, and the connecting steel plate 13 is fixedly connected with an H-shaped steel beam 14 for connecting a prefabricated beam or a damper, and a plurality of bolt holes 15 are opened on the flange of the H-shaped steel beam 14. The cross beam 4 also includes stirrups 16 for fixing the shear web 41, the upper longitudinal reinforcement 42 and the bottom longitudinal reinforcement 43. The surrounding sides of the connection between the cross beam 4 and the first steel plate 2 are fixedly connected with reinforcement plates.

[0036] In the present invention, a plurality of insertion rods 7 are arranged on the first shock-absorbing rod 51 and the second shock-absorbing rod 52, and a third shock-absorbing spring 9 is sleeved on the insertion rod 7. When the vibration force is transmitted to the first shock-absorbing rod 51 and the second shock-absorbing rod 52, the insertion rod 7 moves outward to stretch the third shock-absorbing spring 9, thereby releasing the vibration force exerted on the first shock-absorbing rod 51 and the second shock-absorbing rod 52.

[0037] The method for using a fully prefabricated steel pipe restraint frame node of the present invention is as follows:

[0038] To make a connection frame, first, four first steel plates 2 are welded on the outside of the cast steel pipe 1, and then the second steel plate 3 is welded to the first steel plate 2, and the reinforcement sleeve is inserted through the second steel plate 3 and welded; the crossbeam 4 is made, and the shear web 41 is arranged between the upper longitudinal reinforcement 42 and the bottom longitudinal reinforcement 43. The crossbeam 4 also includes stirrups 16 for fixing the shear web 41, the upper longitudinal reinforcement 42 and the bottom longitudinal reinforcement 43; the node is assembled, the crossbeam 4 is welded to the first steel plate 2, and a suitable number of crossbeams 4 or dampers are connected according to the installation situation.

[0039] For example, when an earthquake occurs, the cross beam 4 will vibrate. At this time, the vibration force generated by the cross beam 4 will be transmitted to the connection with the first steel plate 2. At this time, the vibration force will be transmitted to the second shock-absorbing rod 52 through the first shock-absorbing rod 51. Because the second shock-absorbing rod 52 is hinged to the first shock-absorbing rod 51, and the second shock-absorbing rod 52 is hinged to the slider 53, the second shock-absorbing rod 52 will transmit the vibration force it receives to the first shock-absorbing spring 54 through the hinged rod 55 and the slider 53, and the first shock-absorbing spring 54 will perform preliminary relief.

[0040] When the second shock-absorbing rod 52 is offset, the second shock-absorbing spring arranged on the side of the connecting cap 61 will further cushion the vibration force exerted on the second shock-absorbing rod 52, thereby further protecting the concrete column. The first shock-absorbing component 5 and the second shock-absorbing component 6 work together to reduce the impact of the vibration of the beam 4 on the concrete column, thereby reducing the vibration force exerted. In addition, the steel plate is not in direct contact with the concrete column, thereby effectively preventing the remaining vibration force from entering the concrete column and causing damage to the interior thereof.

[0041] A plurality of insertion rods 7 are provided on the first shock-absorbing rod 51 and the second shock-absorbing rod 52, and a third shock-absorbing spring 9 is sleeved on the insertion rod 7. When the vibration force is transmitted to the first shock-absorbing rod 51 and the second shock-absorbing rod 52, the insertion rod 7 moves outward to stretch the third shock-absorbing spring 9, thereby releasing the vibration force exerted on the first shock-absorbing rod 51 and the second shock-absorbing rod 52.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully prefabricated steel pipe restrained frame node, characterized in that: include: A casting steel pipe (1) and a plurality of first steel plates (2) arranged vertically, wherein the plurality of first steel plates (2) are arranged on the periphery of the casting steel pipe (1) and are welded to each other in pairs; The second steel plates (3) are arranged in a pair, and the second steel plates (3) are arranged horizontally, respectively welded to the upper and lower sides of a plurality of the first steel plates (2), and fixedly sleeved on the casting steel pipes (1); A crossbeam (4) is welded to the outside of the first steel plate (2), and the crossbeam (4) is welded to a plurality of vertical side surfaces of the first steel plate (2); The first steel plate (2) is provided with an interlayer, and a plurality of groups of first shock absorbing members (5) are provided in the interlayer of the first steel plate (2). The plurality of groups of the first shock absorbing members (5) are arranged in a one-to-one correspondence with the plurality of cross beams (4). The first shock absorbing member (5) comprises a first shock absorbing rod (51) arranged horizontally, and one end of the first shock absorbing rod (51) passes through the first steel plate (2) and is fixedly connected to the cross beam (4); a second shock absorbing rod (52) is hinged to the first shock absorbing rod (51); a slider (53) is arranged in a pair, and the pair of sliders (53) are both slidably arranged in the interlayer of the first steel plate (2), and the slider (53) and the second shock absorbing rod (52) are hinged via a hinge rod (55); a first shock absorbing spring (54) has one end fixedly connected to the first steel plate (2) and the other end fixedly connected to the slider (53).

2. A fully prefabricated steel pipe restrained frame node as claimed in claim 1, characterized in that: The second shock-absorbing rod (52) slides through the first steel plate (2) away from one end of the first shock-absorbing rod (51), and one end of the second shock-absorbing rod (52) is fixedly connected to a second shock-absorbing component (6), and the second shock-absorbing component (6) includes a connecting cap (61) fixedly embedded in the end of the second shock-absorbing rod (52); a plurality of second buffer springs (62) are provided, and the plurality of second buffer springs (62) are all inclinedly arranged, with one end fixedly connected to the second shock-absorbing rod (52) and the other end fixedly connected to the first steel plate (2).

3. A fully prefabricated steel pipe restrained frame node as claimed in claim 1, characterized in that: A plurality of insertion rods (7) are slidably inserted around the first shock-absorbing rod (51) and the second shock-absorbing rod (52). The insertion rod (7) is placed in the first shock-absorbing rod (51) and is fixedly connected to a blocking block (8), and the other end is fixedly connected to a baffle (10). A third shock-absorbing spring (9) is sleeved on the insertion rod (7), and one end of the third shock-absorbing spring (9) is fixedly connected to the baffle (10), and the other end is fixedly connected to the first shock-absorbing rod (51).

4. A fully prefabricated steel pipe restrained frame node as claimed in claim 1, characterized in that: A plurality of steel sleeves (11) are vertically inserted on the second steel plate (3), and steel bars (12) are inserted into the steel sleeves (11).

5. A fully prefabricated steel pipe restrained frame node as claimed in claim 1, characterized in that: The cross beam (4) comprises a shear web (41), an upper longitudinal reinforcement (42) and a bottom longitudinal reinforcement (43), wherein the shear web (41) is arranged between the upper longitudinal reinforcement (42) and the bottom longitudinal reinforcement (43).

6. A fully prefabricated steel pipe restrained frame node as claimed in claim 1, characterized in that: The cross beam (4) is fixedly connected to a connecting steel plate (13) at one end away from the first steel plate (2); the connecting steel plate (13) is fixedly connected to an H-shaped steel beam (14) for connecting a prefabricated beam or a damper; and a plurality of bolt holes (15) are provided on the flange of the H-shaped steel beam (14).

7. A fully prefabricated steel pipe restrained frame node as claimed in claim 5, characterized in that: The cross beam (4) also includes stirrups (16) for fixing the shear web (41), the upper longitudinal reinforcement (42) and the bottom longitudinal reinforcement (43).

8. A fully prefabricated steel pipe restrained frame node as claimed in claim 1, characterized in that: A reinforcing plate (17) is fixedly connected to the periphery of the connection between the cross beam (4) and the first steel plate (2).

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