Joint connecting assembly for fabricated building

Abstract

The utility model discloses a node connecting assembly for a fabricated building, which comprises a first connecting plate arranged on the side surface of a stand column and a second connecting plate positioned below the first connecting plate, and a detachably connected damper is arranged on the second connecting plate. A cross beam is arranged between the first connecting plate and the damper, and the first connecting plate and the damper are fastened and connected through a plurality of high-strength bolts; each side face of the stand column is provided with the corresponding cross beam so as to form a node of the fabricated building. The first connecting plate and the second connecting plate are connected with the stand column through high-strength bolts and / or split screws respectively. According to the node connecting assembly for the fabricated building, the connecting mode of the stand columns and the cross beams is improved, the dampers are arranged at the connecting positions of the cross beams and the stand columns, plastic deformation of the cross beams and the stand column bodies can be effectively relieved or even prevented, the damage risk of the stand columns or the cross beams is reduced, and the later maintenance difficulty of the cross beams and the stand columns is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled building structures, in particular to a node connection component for assembled buildings. Background Art

[0002] With the rapid development of building structures, in order to improve the construction efficiency of buildings and reduce the workload of concrete pouring, welding and other work at the construction site, more and more buildings are constructed using prefabricated structures. In the process of prefabricated building construction, many nodes will appear. These nodes mainly exist in the connection between columns and beams. The existing nodes will be connected by welding. Although this connection method has high strength, it is not easy to dismantle and maintain in the later stage. The columns and beams will also be welded by connecting plates with bolts. Although this connection method is detachable, the connection strength is not easy to control. If the number of beams increases, the difficulty of installation will increase accordingly. Moreover, these two connection methods do not have a good response effect on vibration or unbalanced force at the nodes, and the possibility of deformation or damage of beams and columns increases, which is not conducive to subsequent repair. Summary of the invention

[0003] The utility model aims to provide a node connection component for assembled buildings in view of the problems existing in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A node connection assembly for an assembled building comprises a first connection plate arranged on the side of a column, and a second connection plate located below the first connection plate, wherein a detachably connected damper is provided on the second connection plate, and a cross beam is provided between the first connection plate and the damper and they are fastened and connected by a plurality of high-strength bolts respectively; the cross beam is provided on each side of the column to form a node of the assembled building; the first connection plate and the second connection plate are connected to the column respectively by high-strength bolts, and / or are connected to the column by tension screws.

[0006] The node connection assembly for prefabricated buildings improves the connection method between the columns and the beams, and arranges the damper at the connection between the beams and the columns, which can effectively reduce or even prevent the plastic deformation of the beams and the column bodies, reduce the risk of damage to the columns or beams, and reduce the difficulty of later maintenance of the beams and the columns.

[0007] The node connection assembly for prefabricated buildings also has the characteristics of simple structure and easy connection and installation. Each side of the column can be conveniently connected to the beam. The arrangement of the first connecting plate and the second connecting plate can reduce the difficulty of directly connecting the beam and the column.

[0008] The first connecting plate is connected to the beam from above and can hold the beam. The second connecting plate can support the damper, and the beam is carried by the damper. The damper can consume energy while being subjected to force, that is, it absorbs and consumes some deformation force. Especially when the column or beam is vibrated, it can effectively buffer and consume vibration force, thereby improving overall safety.

[0009] By setting the damper, the entire connection node has good hysteresis performance, so that the deformation at the node basically only occurs on the damper. When the column and the beam are subjected to unbalanced force, the damper can first undergo plastic deformation to protect the beam and the column from damage. During the maintenance process, only the damper needs to be replaced.

[0010] Furthermore, the damper comprises a pair of damper connecting plates arranged in parallel, a plurality of damping plates are arranged between the pair of damper connecting plates, and a plurality of strip holes arranged vertically and / or obliquely are provided on the damping plates.

[0011] The damper connecting plate plays a connecting and supporting role to facilitate its installation; the arrangement of a plurality of damping plates provides sufficient supporting force while also having the characteristic of energy dissipation.

[0012] Furthermore, the length direction of the damping plate is parallel to the length direction of the crossbeam, the number of the damping plates is 3 to 5 and the number of the strip holes is 4 to 7 ...

[0013] Furthermore, the damping plate is a low-carbon steel plate with better toughness and plasticity, and is integrally formed with the damper connecting plates or welded between the damper connecting plates. The ratio of the width to the length of the damping plate is controlled at 2:3 to 2:7.

[0014] Furthermore, the first connecting plate and the second connecting plate are respectively T-shaped structural plates, the short sides of the T-shaped structural plates are respectively connected to the columns, the long sides of the T-shaped structural plates are connected to the beams and the dampers, and an inclined rib plate is also provided between the long side of the second connecting plate and the short side below.

[0015] In some embodiments, a connecting sleeve is provided on the outer periphery of the column, and the connecting sleeve is connected to the column through the high-strength bolts and / or the tension screws. The first connecting plate and the second connecting plate are horizontally provided on the outer side of the connecting sleeve, and a plurality of inclined ribs are provided between the second connecting plate and the connecting sleeve.

[0016] Furthermore, the columns are steel structure columns or concrete steel columns, and the crossbeams are I-beams or square box beams.

[0017] Furthermore, an upper wing plate is provided at the edge of the first connecting plate, and a gusset structure is provided between the upper wing plates of adjacent first connecting plates.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows: 1. The node connection assembly for prefabricated buildings improves the connection method of the column and the beam, and the damper is arranged at the connection between the beam and the column, which can effectively reduce or even prevent the plastic deformation of the beam and the column body, reduce the risk of damage to the column or the beam, and reduce the difficulty of maintenance of the beam and the column in the later stage; 2. The node connection assembly for prefabricated buildings also has the characteristics of simple structure, easy connection and installation. Each side of the column can be conveniently connected to the beam. The arrangement of the first connecting plate and the second connecting plate can reduce the difficulty of direct connection between the beam and the column; 3. Through the arrangement of the damper, the entire connection node has good hysteresis performance, so that the deformation at the node basically only occurs on the damper. When the column and the beam are subjected to unbalanced force, the damper can be plastically deformed first to protect the beam and the column from damage. During the maintenance process, only the damper needs to be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the connection structure of a node connection assembly for an assembled building according to the utility model;

[0020] Figure 2 It is a top view schematic diagram of a node connection assembly for an assembled building of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the damper in the node connection assembly of the utility model;

[0022] Figure 4 This is a schematic diagram of the angle brace structure of the node connection assembly of the utility model;

[0023] Figure 5 This is another schematic diagram of the connection structure of the node connection assembly of the utility model;

[0024] Figure 6 It is a top view schematic diagram of another connection structure of the node connection assembly of the utility model;

[0025] In the figure: 1. column; 2. cross beam; 3. first connecting plate; 4. second connecting plate; 5. damper; 501. damper connecting plate; 502. damping plate; 503. strip hole; 6. tension screw; 7. wing plate on connecting plate; 8. angle bracing structure; 9. connecting sleeve; 10. inclined rib plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] Embodiment 1:

[0029] like Figure 1 and Figure 2 As shown, a node connection assembly for an assembled building comprises a first connecting plate 3 arranged on the side of a column 1, and a second connecting plate 4 located below the first connecting plate 3, a detachably connected damper 5 is provided on the second connecting plate 4, a cross beam 2 is provided between the first connecting plate 3 and the damper 5 and they are fastened together by a plurality of high-strength bolts respectively; the cross beam 2 is provided on each side of the column 1 to form a node of the assembled building; the first connecting plate 3 and the second connecting plate 4 are respectively connected to the column 1 by high-strength bolts, and / or connected to the column 1 by tension screws 6.

[0030] The node connection assembly for prefabricated buildings improves the connection method between the column 1 and the beam 2, and arranges the damper 5 at the connection between the beam 2 and the column 1, which can effectively reduce or even prevent the plastic deformation of the beam 2 and the column 1 body, reduce the risk of damage to the column 1 or the beam 2, and reduce the difficulty of maintenance of the beam 2 and the column 1 in the later stage.

[0031] The node connection assembly for prefabricated buildings also has the characteristics of simple structure and easy connection and installation. Each side of the column 1 can be conveniently connected to the beam 2. The arrangement of the first connecting plate 3 and the second connecting plate 4 can reduce the difficulty of directly connecting the beam and the column.

[0032] The first connecting plate 3 is connected to the beam 2 from above and can hold the beam 2. The second connecting plate 4 can support the damper 5, and the beam 2 is carried by the damper 5. The damper 5 can consume energy while being subjected to force, that is, absorb and consume some deformation force, especially when the column or beam is vibrated, it can effectively buffer and consume vibration force, thereby improving overall safety.

[0033] By setting the damper 5, the entire connection node has good hysteresis performance, so that the deformation at the node basically only occurs on the damper. When the column 1 and the beam 2 are subjected to unbalanced force, the damper 5 can first undergo plastic deformation to protect the beam 2 and the column 1 from damage. During the maintenance process, only the damaged damper 5 needs to be replaced.

[0034] When the first connecting plate 3 and the second connecting plate 4 are connected by the tension screw 6, a pair of first connecting plates or a pair of second connecting plates arranged opposite to each other can be connected to the column 1 together. In addition, the central symmetrical arrangement structure of the entire connection node is conducive to the dispersion and balance of force, thereby improving the stability and safety of the connection structure at the node.

[0035] Further, such as Figure 3 As shown, the damper 5 includes a pair of damper connecting plates 501 arranged in parallel, a plurality of damper plates 502 are arranged between the pair of damper connecting plates 501 , and a plurality of strip holes 503 perpendicular to the damper connecting plates 501 are arranged on the damper plates 502 .

[0036] The damper connecting plate 501 plays a connecting and supporting role to facilitate its installation; the arrangement of multiple damping plates 502 provides sufficient support force while also having the characteristic of energy dissipation. The arrangement of the strip holes 503 can form a number of slits on the damping plate. This structure makes it more sensitive to deformation force than beams and columns, and is more susceptible to deformation force, and realizes energy dissipation at the node through its own plastic deformation. In addition, the structure of the damper is relatively simple, and the manufacturing difficulty is not high.

[0037] In some embodiments, the strip-shaped holes 503 may be arranged obliquely, the oblique directions of the strip-shaped holes on two adjacent damping plates 502 are opposite, and the inclination (deflection) angle of the strip-shaped holes 503 does not exceed 10°.

[0038] Furthermore, the length direction of the damping plate 502 is parallel to the length direction of the beam 2 , the damping plates 502 are 3 to 5 arranged at intervals, and the strip holes 503 are 4 to 7 arranged at intervals.

[0039] Furthermore, the damping plate 502 is a low-carbon steel plate, which is integrally formed with the damper connecting plate 501 or welded between the damper connecting plates 501. The damper connecting plate 501 can be made of the same material as the damping plate 502, or a different material. The damping plate made of low-carbon steel has better toughness and plasticity.

[0040] The ratio of the width to the length of the damping plate 502 is controlled within a range of 2:3 to 2:7, for example, the length is twice the width. The damping plate within this ratio range is neither too square nor too narrow, and has a good force performance. The force at the node can be analyzed by finite element numerical simulation software to fine-tune the size and installation position of the damping plate.

[0041] Furthermore, the first connecting plate 3 and the second connecting plate 4 are respectively T-shaped structural plates, the short sides of the T-shaped structural plates are respectively connected to the columns 1, the long sides of the T-shaped structural plates are connected to the beams 2 and the dampers 5, and an inclined rib plate 10 is also provided between the long side of the second connecting plate 4 and the short side below.

[0042] The first connecting plate 3 and the second connecting plate 4 of the above structure can be installed and disassembled independently without being affected by the connection and installation of adjacent beams. The arrangement of the inclined ribs 10 can enhance the supporting stability and structural strength of the second connecting plate.

[0043] Furthermore, the column 1 is a steel structure column or a concrete steel column, and the crossbeam 2 is an I-beam or a square box beam. The node connection assembly is basically not limited by the structure and shape of the column and the crossbeam, and has a wide range of applications.

[0044] In some embodiments, Figure 4 As shown, the edge of the first connecting plate 3 is further provided with a connecting plate upper wing plate 7, and a gusset structure 8 is provided between the connecting plate upper wing plates 7 of adjacent first connecting plates 3. Such an arrangement can increase the connection strength and stability at the node. The gusset structure 8 includes a flange edge connected to the connecting plate wing plate, and an inclined support plate arranged between a pair of flange edges.

[0045] Embodiment 2:

[0046] This embodiment provides another connection structure of the first connection plate and the second connection plate.

[0047] like Figure 5 and Figure 6As shown, the outer periphery of the column 1 is provided with a connecting sleeve 9, and the connecting sleeve 9 is connected to the column 1 through the high-strength bolts and / or the tension screws, and the first connecting plate 3 and the second connecting plate 4 are horizontally welded to the outer side of the connecting sleeve 9, and a plurality of inclined ribs 10 are provided between the second connecting plate 4 and the connecting sleeve 9.

[0048] By setting the connecting sleeve 9, the structure of the two connecting plates is simplified, the connection is not limited to the structural form of the column 1, and the forces of these connecting plates can act on one component. For the connection of multiple beams 2, the integrity is better and they can share the forces.

[0049] 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 node connection assembly for assembled buildings, characterized in that: It includes a first connecting plate arranged on the side of the column, and a second connecting plate located below the first connecting plate, the second connecting plate is provided with a detachably connected damper, a cross beam is provided between the first connecting plate and the damper and they are fastened and connected by a plurality of high-strength bolts respectively; the cross beam is provided on each side of the column to form a node of the prefabricated building; the first connecting plate and the second connecting plate are respectively connected to the column by high-strength bolts, and / or connected to the column by tension screws.

2. The node connection assembly for prefabricated buildings according to claim 1, characterized in that: The damper comprises a pair of damper connecting plates arranged in parallel, a plurality of damping plates are arranged between the pair of damper connecting plates, and a plurality of strip holes arranged vertically and / or obliquely are arranged on the damping plates.

3. The node connection assembly for prefabricated buildings according to claim 2, characterized in that: The length direction of the damping plate is parallel to the length direction of the crossbeam, the number of the damping plates is 3 to 5 and the number of the strip holes is 4 to 7 ...

4. The node connection assembly for prefabricated buildings according to claim 2, characterized in that: The damping plate is a low-carbon steel plate, which is integrally formed with the damper connecting plates or welded between the damper connecting plates. The ratio of the width to the length of the damping plate is controlled within a range of 2:3 to 2:

7.

5. The node connection assembly for prefabricated buildings according to claim 1, characterized in that: The first connecting plate and the second connecting plate are respectively T-shaped structural plates, the short sides of the T-shaped structural plates are respectively connected to the columns, the long sides of the T-shaped structural plates are connected to the crossbeams and the dampers, and an inclined rib plate is also provided between the long side of the second connecting plate and the short side below.

6. The node connection assembly for prefabricated buildings according to claim 1, characterized in that: The outer periphery of the column is provided with a connecting sleeve, and the connecting sleeve is connected to the column through the high-strength bolts and / or the tension screws. The first connecting plate and the second connecting plate are horizontally provided on the outer side of the connecting sleeve, and a plurality of inclined ribs are provided between the second connecting plate and the connecting sleeve.

7. The node connection assembly for prefabricated buildings according to claim 1, characterized in that: The columns are steel structure columns or concrete steel columns, and the crossbeams are I-beams or square box beams.

8. The node connection assembly for prefabricated buildings according to claim 1, characterized in that: An upper wing plate is also provided at the edge of the first connecting plate, and a gusset structure is provided between the upper wing plates of adjacent first connecting plates.

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