A beam-column node structure of a steel structure assembled building

Abstract

The present invention discloses a beam-column node structure of a steel structure prefabricated building, comprising an inner sleeve and a driving assembly; the inner sleeve can be slidably embedded in a transverse sleeve of a beam or a node member; the driving assembly is used to drive the inner sleeve to move from one of the beam and the transverse sleeve where the inner sleeve is embedded to the other. In actual application, the beam-column node structure of the steel structure prefabricated building can be driven to move axially from one of the beam and the transverse sleeve where the inner sleeve is embedded to the other by manipulating the driving assembly, because the inner sleeve can be slidably embedded in the beam or the transverse sleeve. Finally, the inner sleeve is partially located in the beam and partially located in the transverse sleeve. Then, the internal connection between the beam and the transverse sleeve can be achieved by fastening with fasteners. The installation process is simple, which greatly reduces the difficulty of operation.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure assembled buildings, and in particular to a beam-column node structure of a steel structure assembled building. Background Art

[0002] Prefabricated buildings are representatives of modern industrialized production methods because they adopt standardized design, factory production, assembly construction, information management, and intelligent applications.

[0003] Steel structure prefabricated buildings have natural prefabricated building advantages. The most fundamental factor in the development of prefabricated buildings is cost. Because the square tube beam structure has good stability, it is the preferred profile type for steel structure buildings. The use of square tube beams and columns combined with embedded walls can make the overall building have better wind and earthquake resistance, reduce the support system and reduce construction costs. However, the existing square tube beam-column connection nodes require a lot of on-site welding work, and the installation of the connection lining between the beam and the transverse sleeve requires the beam to be destroyed first and then repaired later. The installation process is complicated and difficult to operate.

[0004] In summary, how to solve the problem of complex installation process and difficult operation of beam-column connection nodes in steel structure prefabricated buildings has become a technical problem that technical personnel in this field need to solve urgently. Summary of the invention

[0005] The purpose of the present invention is to provide a beam-column node structure of a steel structure prefabricated building, so as to solve the problems of complex installation process and difficult operation of the beam-column connection nodes of the steel structure prefabricated building.

[0006] In order to achieve the above-mentioned object, the present invention provides a beam-column node structure of a steel structure prefabricated building, comprising an inner bushing and a drive assembly;

[0007] The inner lining sleeve is slidably embedded in the transverse sleeve of the crossbeam or node member;

[0008] The driving assembly is used to drive the inner bushing to move from one of the cross beam and the transverse sleeve in which the inner bushing is embedded to the other.

[0009] Preferably, the driving assembly includes a rack groove and a driving rod, the rack groove is arranged on the inner sleeve and arranged along the axial direction of the inner sleeve; the end of the driving rod is provided with a gear that cooperates with the rack groove, and one of the crossbeam and the transverse sleeve in which the inner sleeve is embedded is provided with a through hole for the driving rod to pass through.

[0010] Preferably, a tool connector is provided at the top end of the driving rod, and the tool connector is used to be directly connected to a driving tool.

[0011] Preferably, the rack groove includes a through groove opened on the wall surface of the inner sleeve, a rack arranged on the inner side of the inner sleeve and corresponding to a side of the through groove, a support plate arranged on the inner side of the inner sleeve and opposite to the through groove, and a limit plate arranged on the inner side of the inner sleeve and on the side opposite to the rack; the support plate is used to support the gear; and the limit plate is used to prevent the gear from lateral movement.

[0012] Preferably, the driving assembly comprises a vertical sleeve which transversely penetrates the node member and a tie rod of an interlayer column, the inner sleeve is slidably disposed in the crossbeam, and a hanging portion for hanging with the inner sleeve is disposed at the penetrating end of the tie rod.

[0013] Preferably, the inner sleeve comprises a rectangular liner structure surrounded by an upper liner, a lower liner, a front liner and a rear liner, and flexible end plates located at both ends of the rectangular liner structure; a preset splicing gap is provided between any two adjacent liner plates among the upper liner, the lower liner, the front liner and the rear liner; the upper end of the flexible end plate is connected to the upper liner, the lower end of the flexible end plate is connected to the lower liner, the front end of the flexible end plate is connected to the front liner, and the rear end of the flexible end plate is connected to the rear liner.

[0014] Preferably, the upper end of the flexible end plate is provided with an upper flexible connection position connected to the upper lining plate, the lower end of the flexible end plate is provided with a lower flexible connection position connected to the lower lining plate, the front end of the flexible end plate is provided with a front flexible connection position connected to the front lining plate, and the rear end of the flexible end plate is provided with a rear flexible connection position connected to the rear lining plate.

[0015] Preferably, the docking port of the transverse sleeve is a first stepped port with a notch on the upper portion, and the crossbeam is provided with a second stepped port with a notch on the lower portion which is adapted to the first stepped port.

[0016] Preferably, the top end of the vertical sleeve of the node component is connected to the upper column through a flange; and the bottom end of the vertical sleeve is embedded in the lower column, and a limiting support plate is also provided on the outer side of the vertical sleeve, and the limiting support plate abuts against the end face of the lower column; or, the bottom end of the vertical sleeve is sleeved in the lower column, and a limiting support plate is also provided on the outer side of the lower column, and the limiting support plate abuts against the end face of the vertical sleeve.

[0017] Preferably, the node member is provided with a mounting hole for mounting a fastener, and the mounting hole is a mounting hole with a threaded internal thread formed on the inner sleeve by hot melting or rolling.

[0018] Compared with the background technology introduction, the beam-column node structure of the above-mentioned steel structure prefabricated building includes an inner sleeve and a driving assembly; the inner sleeve can be slidably embedded in the transverse sleeve of the beam or the node member; the driving assembly is used to drive the inner sleeve to move from one of the beam and the transverse sleeve where the inner sleeve is embedded to the other. In the actual application process of the beam-column node structure of the steel structure prefabricated building, since the inner sleeve can be slidably embedded in the beam or the transverse sleeve, the inner sleeve can be driven to move axially from one of the beam or the transverse sleeve where the inner sleeve is embedded to the other by manipulating the driving assembly. Finally, part of the inner sleeve is located in the beam and part is located in the transverse sleeve. Then, the internal connection between the beam and the transverse sleeve can be achieved by fastening with fasteners. The installation process is simple, which greatly reduces the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective structural diagram of the connection between a node component and an interlayer column provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a structure in which a second step opening is arranged on a beam provided in an embodiment of the present invention;

[0021] Figure 3 A perspective structural diagram of a node member provided by an embodiment of the present invention before the inner sleeve moves axially when the transverse sleeve is butted against the crossbeam;

[0022] Figure 4 A perspective structural diagram of the inner sleeve axially moving into position when the transverse sleeve of the node component provided by the embodiment of the present invention is butted against the crossbeam;

[0023] Figure 5 A perspective structural diagram of a connecting plate provided at a butt joint between a transverse sleeve of a node member and a crossbeam provided in an embodiment of the present invention;

[0024] Figure 6 A schematic diagram of the structure of a flexible inner liner provided in an embodiment of the present invention;

[0025] Figure 7 for Figure 6 AA cross-sectional structural diagram;

[0026] Figure 8 A schematic diagram of a structure in which flexible end plates are arranged at both ends of a flexible inner liner provided in an embodiment of the present invention;

[0027] Fig. 9 A schematic diagram of the structure of a flexible end plate provided in an embodiment of the present invention;

[0028] Fig.10 A schematic diagram of the unfolded structure of the flexible end plate provided in an embodiment of the present invention;

[0029] Fig.11 A schematic diagram of the external structure of the beam-column node structure of the steel structure prefabricated building provided by an embodiment of the present invention after installation is completed;

[0030] Fig.12 A schematic diagram of the structure of a driving rod provided by an embodiment of the present invention;

[0031] Fig.13 A schematic diagram of the structure of a pull rod provided in an embodiment of the present invention;

[0032] Fig.14 A schematic structural diagram of a pull rod driven inner sleeve provided for implementation of the present invention.

[0033] superior Figure 1-Figure 14 middle,

[0034] Interlayer columns 1, upper columns 11, lower columns 12, cross beams 2, second step openings 21, vertical sleeves 3, limit support plates 30, transverse sleeves 4, first step openings 41, inner sleeves 5, upper lining plates 51, lower lining plates 52, front lining plates 53, rear lining plates 54, flexible end plates 55, drive rods 6, gears 61, pull rods 62, rack grooves 7, through grooves 71, racks 72, support plates 73, limit plates 74, connecting splints 8, and through holes 9. DETAILED DESCRIPTION

[0035] The core of the present invention is to provide a beam-column node structure of a steel structure prefabricated building to solve the problem of complex installation process and difficult operation of the beam-column connection nodes of the steel structure prefabricated building.

[0036] In order to enable those skilled in the art to better understand the technical solution provided by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] like Figure 1-Figure 14 As shown, an embodiment of the present invention provides an inner sleeve 5 and a drive assembly; the inner sleeve 5 is slidably embedded in a transverse sleeve 4 of a crossbeam 2 or a node member; the drive assembly is used to drive the inner sleeve 5 to move from one of the crossbeam 2 and the transverse sleeve 4 in which the inner sleeve 5 is embedded to the other.

[0038] In actual application of the beam-column node structure of the steel structure prefabricated building, since the inner sleeve is slidably embedded in the cross beam or the transverse sleeve, the inner sleeve can be driven to move axially from one of the cross beams or the transverse sleeves where the inner sleeve is embedded to the other by manipulating the driving component. Finally, part of the inner sleeve is located in the cross beam and part of it is located in the transverse sleeve. Then, the internal connection between the cross beam and the transverse sleeve can be achieved by fastening with fasteners. The installation process is simple and the operation difficulty is greatly reduced.

[0039] It should be noted that those skilled in the art should be able to understand that, for the beam-column node structure, it generally includes a node component for connecting the interlayer columns 1 and the crossbeam 2, and the node component includes a vertical sleeve 3 and a transverse sleeve 4 laterally fixed on the outside of the vertical sleeve 3, wherein the top end of the vertical sleeve 3 is used to connect with the upper column 11, and the bottom end of the vertical sleeve 3 is used to connect with the lower column 12. In actual application, the top and bottom ends of the vertical sleeve are respectively connected to the upper column and the lower column, realizing the connection of the interlayer columns, and connected to the crossbeam through the transverse sleeve.

[0040] In some specific embodiments, the specific structure of the driving assembly may include a rack groove 7 and a driving rod 6, wherein the rack groove 7 is provided on the inner bushing 5 and arranged along the axial direction of the inner bushing 5; a gear 61 matching the rack groove 7 is provided at the end of the driving rod 6, and a through hole 9 for the driving rod 6 to pass through is provided on one of the cross beam 2 and the transverse sleeve 4 in which the inner bushing 5 is embedded. In actual application, when the driving rod rotates, it can drive the gear to rotate, and the gear will drive the rack groove to move axially, and then the inner bushing can move from one of the cross beam or the transverse sleeve in which the inner bushing is embedded to the other, and finally the inner bushing is partially located in the cross beam and partially located in the transverse sleeve, so that the internal connection between the cross beam and the transverse sleeve is realized.

[0041] In a further embodiment, the top of the driving rod 6 may be provided with a tool connector, which may be directly connected to a driving tool. For example, the tool connector may be designed to be compatible with an electric drill chuck, so that the driving rod can be rotated by an electric drill. It may also be designed to be compatible with an electric wrench, so that it can be driven directly by the electric wrench. Of course, it may also be designed to be a curved handle structure, so that the driving rod can be rotated by manually turning the curved handle. In actual application, it can be selected according to actual needs.

[0042] In a further embodiment, the specific structure of the rack groove 7 includes a through groove 71 provided on the wall surface of the inner bushing 5 and a rack 72 provided on the inner side of the inner bushing 5 and arranged on one side of the through groove 71. The rack can be fixed to the inner bushing by welding, or other fixing methods commonly used by those skilled in the art, such as bolt fastening.

[0043] In a further embodiment, the specific structure of the rack groove 7 may further include a support plate 73 disposed on the inner side of the inner bushing 5 and facing the through groove 71, and the support plate 73 is used to support the gear 61. By providing the support plate 73, the longitudinal position of the gear can be limited so that the gear always remains flush with the rack.

[0044] In a further embodiment, the rack groove 7 may further include a limit plate 74 disposed inside the inner bushing 5 and arranged on a side opposite to the rack 72, and the limit plate 74 is used to prevent the lateral movement of the gear 61. By arranging the limit plate, the gear 61 can always maintain a meshing state with the rack, thereby making the driving of the driving rod more effective.

[0045] In addition, it should be noted that the above-mentioned method of using a driving rod in conjunction with a gear to drive the rack groove is only a preferred example of an embodiment of the present invention. In actual application, other driving methods can also be used. For example, the driving component can specifically include a vertical sleeve 3 that transversely penetrates the node component and a pull rod 62 of the interlayer column 1. The inner sleeve 5 is slidably arranged in the crossbeam 2, and the through end of the pull rod 62 is provided with a hanging portion for hanging with the inner sleeve 5. The inner sleeve is pulled from the crossbeam to the transverse sleeve direction by the pull rod 62, and finally the inner sleeve is partially located in the transverse sleeve and partially located in the crossbeam, thereby realizing the internal connection between the crossbeam and the transverse sleeve. It should be noted that the structure of the above-mentioned hanging portion can specifically be a hook or a buckle structure, or other hanging structures commonly used by those skilled in the art, which are not specifically limited here.

[0046] In addition, it should be noted that the structure of the inner bushing can be designed as a rigid structure or a flexible structure. Generally speaking, in order to more effectively reduce the matching clearance between the inner bushing and the crossbeam and the transverse sleeve, the structure of the inner bushing is preferably designed as a flexible structure with a certain deformation ability. The flexible structure can make the inner bushing fit more closely with the inner side of the crossbeam and the transverse sleeve, effectively improving the stability of the connection of the inner bushing. In order to facilitate movement, a gap of about 1 mm is generally reserved between the traditional inner bushing and the crossbeam and the splint, resulting in low stability after assembly.

[0047] The specific structure of the inner liner of the flexible structure may include a rectangular liner structure surrounded by an upper liner 51, a lower liner 52, a front liner 53 and a rear liner 54, and flexible end plates 55 located at both ends of the rectangular liner structure; any two adjacent liner plates among the upper liner 51, the lower liner 52, the front liner 53 and the rear liner 54 have a preset splicing gap; the upper end of the flexible end plate 55 is connected to the upper liner 51, the lower end of the flexible end plate 55 is connected to the lower liner 52, the front end of the flexible end plate 55 is connected to the front liner 53, and the rear end of the flexible end plate 55 is connected to the rear liner 54. Since the end plates connecting the upper, lower, front and rear liner plates are flexible end plates, when the inner liner is assembled into the cross beam or the transverse sleeve, the overall rectangular liner structure can be shrunk as a whole through the deformation of the flexible end plates, thereby achieving a close fit with the inner side of the cross beam or the transverse sleeve.

[0048] It should be noted that the specific structural form of the flexible end plate 55 can be that the upper end of the flexible end plate 55 is provided with an upper flexible connection position connected to the upper lining plate 51, the lower end of the flexible end plate 55 is provided with a lower flexible connection position connected to the lower lining plate 52, the front end of the flexible end plate 55 is provided with a front flexible connection position connected to the front lining plate 53, and the rear end of the flexible end plate 55 is provided with a rear flexible connection position connected to the rear lining plate 54. Among them, the upper flexible connection position, the lower flexible connection position, the front flexible connection position and the rear flexible connection position are all spring structures integrally formed with the flexible end plate 55, such as a structure formed by bending a thin steel plate into a U-shaped bend. Of course, it can be understood that the above-mentioned spring structure is only an example of the flexible connection position in the embodiment of the present invention. In the actual application process, other structures of the flexible connection position commonly used by those skilled in the art can also be used, such as springs or elastic rubbers. In addition, the flexible end plate adopts a flexible connection position, which is also a preferred example of the embodiment of the present invention. In the actual application process, it can also be an integral elastic end plate structure, such as a rubber block.

[0049] In some more specific implementation schemes, in order to facilitate the docking and positioning of the transverse sleeve 4 and the crossbeam, the docking interface of the transverse sleeve 4 can be designed as a first step opening 41 with a notch on the upper part, and the crossbeam 2 is provided with a second step opening 21 with a notch on the lower part that matches the first step opening 41. The first step opening cooperates with the second step opening to facilitate the docking and positioning between the transverse sleeve and the crossbeam, and the first step opening can also share the longitudinal shear force of the inner sleeve. Of course, it can be understood that the above-mentioned coordination form of the first step opening and the second step opening is only the preferred distance of the embodiment of the present invention. In actual application, other notch forms can also be selected according to the convenience of actual processing and installation requirements, and no more specific restrictions are made here.

[0050] In a further implementation scheme, in order to ensure the stability of the connection between the transverse sleeve 4 and the crossbeam 2, a connecting splint 8 is generally provided on the outside of the position where the transverse sleeve 4 and the crossbeam 2 are connected. The connecting splint can be directly fixed by fastening, and the connection is very convenient. It should be noted that the specific structural form of the connecting splint can be a splint structure arranged at the upper and lower positions relative to the crossbeam, or a splint structure arranged at the left and right positions relative to the crossbeam, and the structural form of the connecting splint can adopt a U-shaped plate structure, which is clamped and fixed by splicing and buckling. In actual application, the arrangement can be selected according to actual needs, and no more specific restrictions are made here.

[0051] It should be noted that, generally speaking, the top end of the vertical sleeve 3 of the node member can be connected to the upper column 11 through a flange, and the flange connection makes the operation simpler and more convenient. Of course, it can be understood that the above-mentioned flange connection method is only a preferred example of the embodiment of the present invention. In actual application, other butt connection methods can also be used.

[0052] In a further implementation scheme, the bottom end of the vertical sleeve 3 can be selectively embedded in the lower column 12, and a limiting support plate 30 is further provided on the outer side of the vertical sleeve 3, and the limiting support plate 30 abuts against the end face of the lower column 12; of course, it is also possible that the bottom end of the vertical sleeve 3 is sleeved in the lower column 12, and a limiting support plate 30 is further provided on the outer side of the lower column 12, and the limiting support plate 30 abuts against the end face of the vertical sleeve 3. Through the structural form of the limiting support plate, the shear force of the fasteners connecting the vertical sleeve and the lower column can be shared by the limiting support plate. Similarly, the connection structure between the top end of the vertical sleeve 3 and the upper column 11 can also adopt a similar connection structure form of a limiting support plate, which will not be repeated here.

[0053] It should also be noted that, generally speaking, the node components are connected to the interlayer columns and beams, and are generally connected by fasteners, such as by lengthened bolts. Therefore, it is generally necessary to set a mounting hole 8 for installing the fastener on the corresponding node component, and the mounting hole 8 can specifically be a threaded internal thread mounting hole formed by hot melting or rolling. Because the mounting hole formed by hot melting or rolling can form a mounting hole with an inner liner thread at the position of the mounting hole, it can enhance the clamping force to a certain extent and reduce the shear force on the fastener.

[0054] The above is a detailed introduction to the beam-column node structure of the steel structure prefabricated building provided by the present invention. It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the embodiments can be referred to each other.

[0055] It should also be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such articles or devices. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0056] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A beam-column node structure of a steel structure prefabricated building, characterized in that: It comprises an inner bushing (5) and a drive assembly; The inner lining (5) is slidably embedded in a transverse sleeve (4) of the crossbeam (2) or the node member; The driving assembly is used to drive the inner bushing (5) to move from one of the cross beam (2) and the transverse sleeve (4) in which the inner bushing (5) is embedded to the other; The driving assembly comprises a rack groove (7) and a driving rod (6), wherein the rack groove (7) is arranged on the inner bushing (5) and arranged along the axial direction of the inner bushing (5); a gear (61) matching with the rack groove (7) is arranged at the end of the driving rod (6); and a through hole (9) for the driving rod (6) to pass through is arranged on one of the cross beam (2) and the transverse sleeve (4) in which the inner bushing (5) is embedded; The inner liner (5) comprises a rectangular liner structure surrounded by an upper liner (51), a lower liner (52), a front liner (53) and a rear liner (54), and flexible end plates (55) located at both ends of the rectangular liner structure; any two adjacent liner plates among the upper liner (51), the lower liner (52), the front liner (53) and the rear liner (54) have a preset splicing gap; the upper end of the flexible end plate (55) is connected to the upper liner (51), the lower end of the flexible end plate (55) is connected to the lower liner (52), the front end of the flexible end plate (55) is connected to the front liner (53), and the rear end of the flexible end plate (55) is connected to the rear liner (54); The docking port of the transverse sleeve (4) is a first stepped port (41) with a notch at the top, and the crossbeam (2) is provided with a second stepped port (21) with a notch at the bottom that matches the first stepped port (41).

2. The beam-column node structure of the steel structure prefabricated building according to claim 1, characterized in that: A tool connection head is provided at the top end of the driving rod (6), and the tool connection head is used to be directly connected to a driving tool.

3. The beam-column node structure of the steel structure prefabricated building according to claim 1, characterized in that: The rack groove (7) comprises a through groove (71) formed on the wall surface of the inner sleeve (5), a rack (72) arranged on the inner side of the inner sleeve (5) and corresponding to one side of the through groove (71), a support plate (73) arranged on the inner side of the inner sleeve (5) and facing the through groove (71), and a limit plate (74) arranged on the inner side of the inner sleeve (5) and on the side opposite to the rack (72); the support plate (73) is used to support the gear (61); and the limit plate (74) is used to prevent the gear (61) from lateral movement.

4. The beam-column node structure of the steel structure prefabricated building according to claim 1, characterized in that: The driving assembly comprises a vertical sleeve (3) which transversely penetrates the node member and a pull rod (62) of an interlayer column (1); the inner sleeve (5) is slidably arranged in the crossbeam (2); and a hanging portion for hanging with the inner sleeve (5) is arranged at the through end of the pull rod (62).

5. The beam-column node structure of the steel structure prefabricated building according to claim 1, characterized in that: The upper end of the flexible end plate (55) is provided with an upper flexible connection position connected to the upper lining plate (51), the lower end of the flexible end plate (55) is provided with a lower flexible connection position connected to the lower lining plate (52), the front end of the flexible end plate (55) is provided with a front flexible connection position connected to the front lining plate (53), and the rear end of the flexible end plate (55) is provided with a rear flexible connection position connected to the rear lining plate (54).

6. The beam-column node structure of the steel structure prefabricated building according to claim 1, characterized in that: The top end of the vertical sleeve (3) of the node component is connected to the upper column (11) via a flange; the bottom end of the vertical sleeve (3) is embedded in the lower column (12), and a limit support plate (30) is provided on the outer side of the vertical sleeve (3), and the limit support plate (30) abuts against the end surface of the lower column (12); or, the bottom end of the vertical sleeve (3) is sleeved in the lower column (12), and a limit support plate (30) is provided on the outer side of the lower column (12), and the limit support plate (30) abuts against the end surface of the vertical sleeve (3).

7. The beam-column node structure of the steel structure prefabricated building according to claim 1, characterized in that: The node member is provided with a mounting hole (8) for mounting a fastener, and the mounting hole (8) is a mounting hole with a threaded internal thread formed on the inner bushing (5) by hot melting or rolling.

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