Fabricated building module anti-seismic connection node structure

Abstract

The invention discloses a fabricated building module anti-seismic connection node structure, which relates to the field of fabricated buildings, is used for connecting beam columns and I-shaped beams, and comprises two connection plates symmetrically mounted at the end parts of the I-shaped beams; the fixing base is fixedly installed on the beam column, two symmetrically-arranged bearing parts are arranged on the fixing base, inserting grooves allowing the connecting plates to be inserted are formed in the bearing parts, and the connecting plates are connected with the bearing parts through bolts; the N first friction pieces are arranged between the two bearing parts; the first friction pieces and the second friction pieces are distributed in a staggered mode to form a friction contact face, during an earthquake, displacement of the beam column and the I-shaped beam forces the first friction pieces and the second friction pieces to slide relatively, kinetic energy is converted into heat energy to be dissipated, meanwhile, the N first friction pieces and the N + 1 second friction pieces are staggered to form multi-point friction, and the friction contact face is formed. The energy consumption efficiency is gradually increased along with the displacement magnitude, the anti-seismic energy consumption capacity of the structure is greatly improved, and damage of an earthquake to a building structure is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technology of prefabricated buildings, and particularly to a seismic connection node structure for prefabricated building modules. Background Art

[0002] Prefabricated buildings are widely used due to advantages such as high construction efficiency and environmental protection. The connection node structure of prefabricated buildings is crucial, and its performance is directly related to the stability and safety of the entire building structure, especially during natural disasters such as earthquakes. Traditional prefabricated nodes mostly adopt rigid welding or bolt connection, such as the connection between a beam-column and an I-beam. Under seismic action, due to the lack of an effective energy dissipation mechanism, brittle fracture is prone to occur due to stress concentration during an earthquake, and the lack of an effective energy dissipation mechanism is likely to cause large stress concentration at the connection part, thereby leading to problems such as the fracture of connection bolts and the damage of structural members, seriously affecting the seismic performance and service life of the building structure.

[0003] In existing improved technologies, some adopt friction energy dissipation nodes to try to solve the above problems, but mostly rely on fixed friction force and cannot dynamically adjust the friction force according to actual needs. During long-term use, the friction energy dissipation components are worn to a certain extent, resulting in insufficient energy dissipation during minor earthquakes or premature failure during major earthquakes. Summary of the Invention

[0004] The purpose of the present invention is to provide a seismic connection node structure for prefabricated building modules to solve the problems that traditional prefabricated nodes in the prior art are prone to brittle fracture due to rigid connection and have insufficient energy dissipation, while existing friction energy dissipation nodes rely on fixed friction force and are prone to performance degradation after wear, resulting in limited seismic capacity.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A seismic connection node structure for prefabricated building modules, used for the connection between a beam-column and an I-beam, includes:

[0006] Two connecting plates, symmetrically installed at the end of the I-beam;

[0007] A fixed seat, fixedly installed on the beam-column. There are two symmetrically arranged bearing parts on the fixed seat, and slots for inserting the connecting plates are provided on the bearing parts. The connecting plates and the bearing parts are connected by bolts;

[0008] N first friction members, arranged between the two bearing parts, and one side of the N first friction members is fixedly connected to the fixed seat respectively. Transverse grooves are provided on the N first friction members;

[0009] A fixing plate, one side of which is fixedly connected to the end of the beam-column;

[0010] N + 1 second friction members, one side of which is fixedly connected to the fixing plate. Vertical grooves are provided on all of the N + 1 second friction members. The N + 1 second friction members and the N first friction members are distributed alternately, where N is an integer and N ≥ 1;

[0011] Two limiting plates, which are respectively arranged on both sides of the N + 1 second friction members. One side of each of the two limiting plates is fixedly connected to the fixing plate. Mounting holes are provided on both of the two limiting plates;

[0012] A limiting bolt, one end of which passes through the mounting hole, the transverse groove and the vertical groove and is threadedly connected with a nut;

[0013] Two friction adjusting mechanisms, which are symmetrically arranged on the fixing seat and are located outside the N first friction members. The friction adjusting mechanism can adjust the pressure applied to the first friction member and the second friction member.

[0014] Further, the friction adjusting mechanism includes two groups of symmetrically arranged friction adjusting components. The friction adjusting component includes symmetrically arranged pressing members. A pushing member is arranged on one side of the two pressing members. Part of the pushing member is between the two pressing members. A trapezoidal protrusion is fixedly connected to the side of the pushing member away from the pressing members. A limiting seat is arranged on the side of the protrusion away from the pushing member. A concave groove is provided on the limiting seat. A guiding seat is slidably connected to the outside of the limiting seat. One side of the guiding seat is fixedly connected to the fixing seat. One side of the limiting seat is connected with a moving driving member for driving the limiting seat to move relatively to the guiding seat to approach or move away from the pushing member.

[0015] Further, through holes for the limiting bolt to pass through are provided on the pressing members

[0016] Further, an A inclined surface is provided on the side of the pressing member close to the pushing member. Two B inclined surfaces are symmetrically arranged on the side of the pushing member close to the pressing member. The B inclined surface is matched with the A inclined surface on its one side.

[0017] Further, the moving driving member includes a threaded hole provided on the limiting seat. The inner wall of the threaded hole is threadedly connected with an adjusting bolt. One end of the adjusting bolt penetrates through the guiding seat, the fixing seat and the beam column, and the outer side wall of the adjusting bolt is respectively rotatably connected with the guiding seat, the fixing seat and the beam column.

[0018] Further, both the first friction member and the second friction member are arranged in a plate shape.

[0019] Further, friction pads are covered on the adjacent sides of the first friction member and the second friction member.

[0020] Further, anti-slip patterns are provided on the adjacent sides of the first friction member and the second friction member.

[0021] Furthermore, a plurality of through holes are formed in the connecting plate, and a plurality of strip-shaped grooves are formed through the bearing portion. The plurality of strip-shaped grooves correspond to the plurality of through holes one by one. The connecting plate and the bearing portion are connected by bolts passing through the corresponding strip-shaped grooves and through holes.

[0022] Compared with the prior art, a seismic connection node structure of a prefabricated building module provided by the present invention forms a friction contact surface through the staggered distribution of the first friction member and the second friction member. During an earthquake, the displacement of the beam-column and the I-beam forces the relative sliding between the first friction member and the second friction member, converting kinetic energy into heat energy dissipation. At the same time, N first friction members and N + 1 second friction members are staggered to form multi-point friction, and the energy dissipation efficiency increases with the increase of the displacement magnitude, greatly improving the seismic energy dissipation capacity of the structure and effectively reducing the damage of the earthquake to the building structure.

[0023] Through the provided friction adjustment mechanism, the pressure applied to the first friction member and the second friction member can be adjusted, thereby adjusting the frictional force between the two. During an earthquake, the greater the vibration amplitude of the I-beam, the more the extrusion member can drive the pushing member to move through the driving of the connecting plate, the fixing plate, the limiting plate and the limiting bolt, increasing the force applied to the first friction member and the second friction member, that is, increasing the frictional force, realizing the adaptive adjustment of the frictional force with the vibration amplitude, and further improving the seismic effect.

[0024] By providing a strip-shaped groove on the bearing portion and a through hole on the connecting plate, and connecting them with bolts passing through the corresponding strip-shaped groove and through hole, allowing the bolts to slide in the strip-shaped groove, the transverse groove allows the limiting bolt to slide in the horizontal direction, and the vertical groove allows the limiting bolt to slide in the vertical direction, avoiding the situation that the connecting bolts break due to the displacement of the beam-column and the I-beam during an earthquake, and improving the reliability of the connection node structure.

[0025] The sliding friction of the bolts in the strip-shaped groove can consume seismic energy, release part of the displacement stress, form a secondary energy dissipation path, and complement the first friction member and the second friction member, further enhancing the seismic performance of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is a schematic external three-dimensional structure diagram provided by an embodiment of the present invention;

[0028] Figure 2 It is a schematic front view structure diagram provided by an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of a top-down sectional structure provided by an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of a first exploded structure provided by an embodiment of the present invention;

[0031] Figure 5 A combined schematic diagram of an I-beam, a limiting plate, a mounting hole, a second friction member, and a vertical groove provided by an embodiment of the present invention;

[0032] Figure 6 A schematic diagram of a second exploded structure provided by an embodiment of the present invention.

[0033] Explanation of reference numerals:

[0034] 100, beam-column; 200, I-beam; 300, connecting plate; 310, through hole; 400, fixed seat; 410, bearing part; 420, slot; 430, strip groove; 500, first friction member; 510, transverse groove; 600, fixing plate; 700, second friction member; 710, vertical groove; 800, limiting plate; 810, mounting hole; 820, limiting bolt; 900, friction adjustment mechanism; 910, extrusion member; 911, A inclined surface; 920, pushing member; 921, B inclined surface; 930, protrusion; 940, limiting seat; 950, guiding seat; 960, threaded hole; 970, adjusting bolt. Detailed implementation manners

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] Please refer to Figures 1 to 6 , an anti-seismic connection node structure for prefabricated building modules, used for connecting a beam-column 100 and an I-beam 200, including:

[0037] Two connecting plates 300, which are symmetrically installed at the ends of the I-beam 200, and the connecting plates 300 can be fixed to the I-beam 200 by welding;

[0038] A fixed seat 400, which is fixedly installed on the beam-column 100, and the fixed seat 400 can be fixed to the beam-column 100 by bolt connection. Two symmetrically arranged bearing parts 410 are provided on the fixed seat 400, and slots 420 for inserting the connecting plates 300 are opened on the bearing parts 410. The connecting plates 300 and the bearing parts 410 are connected by bolts;

[0039] N first friction members 500 are arranged between two bearing parts 410, and one side of each of the N first friction members 500 is fixedly connected to the fixed seat 400. Transverse grooves 510 are formed on the N first friction members 500;

[0040] A fixing plate 600, one side of which is fixedly connected to the end of the beam-column 100;

[0041] N + 1 second friction members 700, one side of each of which is fixedly connected to the fixing plate 600. Vertical grooves 710 are formed on each of the N + 1 second friction members 700. The N + 1 second friction members 700 and the N first friction members 500 are distributed alternately. N is an integer and N ≥ 2;

[0042] Two limiting plates 800 are respectively arranged on both sides of the N + 1 second friction members 700. One side of each of the two limiting plates 800 is fixedly connected to the fixing plate 600. Mounting holes 810 are formed on each of the two limiting plates 800;

[0043] A limiting bolt 820, one end of which passes through the mounting hole 810, the transverse groove 510 and the vertical groove 710 and is threadedly connected with a nut;

[0044] Two friction adjusting mechanisms 900 are symmetrically arranged on the fixed seat 400 and are located outside the N first friction members 500. The friction adjusting mechanism 900 can adjust the pressure applied to the first friction member 500 and the second friction member 700.

[0045] In the prior art, when using a friction energy dissipation joint to connect the beam-column 100 and the I-beam 200, it mostly relies on fixed friction and cannot dynamically adjust the friction according to actual needs. After long-term use, the friction energy dissipation components are worn to a certain extent, resulting in insufficient energy dissipation during small earthquakes or premature failure during large earthquakes;

[0046] Therefore, in this application, the first friction members 500 and the second friction members 700 are distributed alternately to form a friction contact surface. Bidirectional displacement energy dissipation is realized through the transverse grooves 510 and the vertical grooves 710 to adapt to the action of complex seismic waves. The pressure applied to the first friction member 500 and the second friction member 700 is adjusted through the friction adjusting mechanism 900, that is, the friction force between the first friction member 500 and the second friction member 700 can be adjusted. During an earthquake, the displacement of the beam-column 100 and the I-beam 200 forces the first friction member 500 and the second friction member 700 to slide relative to each other, converting kinetic energy into heat energy and dissipating it. The N first friction members 500 and the N + 1 second friction members 700 are alternately arranged to form multiple-point friction, and the energy dissipation efficiency increases with the displacement magnitude, so as to avoid applying a large friction force initially, causing irreversible wear to the first friction member 500 and the second friction member 700 during long-term use, and thus reducing the seismic performance of the beam-column 100 and the I-beam 200;

[0047] In an embodiment of the present invention, the friction adjustment mechanism 900 includes two sets of symmetrically arranged friction adjustment components. Each friction adjustment component includes symmetrically arranged pressing members 910. On one side of the two pressing members 910, there is a pushing member 920. Part of the pushing member 920 is located between the two pressing members 910. On the side of the pushing member 920 away from the pressing members 910, there is a trapezoidal protrusion 930 fixedly connected. On the side of the protrusion 930 away from the pushing member 920, there is a limit seat 940. The limit seat 940 is provided with an inwardly concave groove. A guide seat 950 is slidably connected to the outside of the limit seat 940. One side of the guide seat 950 is fixedly connected to the fixed seat 400. One side of the limit seat 940 is connected with a moving driving member for driving the limit seat 940 to move relatively close to or away from the pushing member 920 with respect to the guide seat 950;

[0048] The pressing member 910 is provided with a through hole for the limit bolt 820 to pass through. On the side of the pressing member 910 close to the pushing member 920, there is an A inclined surface 911. On the side of the pushing member 920 close to the pressing member 910, there are two symmetrically arranged B inclined surfaces 921. The B inclined surface 921 cooperates with the A inclined surface 911 on its one side.

[0049] Specifically, during an earthquake, the I-beam 200 vibrates. Driven by the connecting plate 300, the fixing plate 600, the limiting plate 800 and the limit bolt 820, the pressing member 910 can drive the pushing member 920 to move relatively with respect to the limit seat 940. The protrusion 930 on the pushing member 920 moves relative to the groove on the limit seat 940. Since the limit seat 940 is fixed to the fixed seat 400 by the moving driving member and the guide seat 950, when the protrusion 930 moves relative to the groove, the inner wall of the groove pushes the protrusion 930, and the protrusion 930 drives the pushing member 920 to move towards the pressing member 910. The pressing member 910 moves horizontally to push the first friction member 500 and the second friction member 700, so that the force applied to the first friction member 500 and the second friction member 700 increases, that is, the friction force increases. Thus, the greater the vibration amplitude of the I-beam 200, the greater the force on the first friction member 500 and the second friction member 700, and the greater the friction force, so as to achieve friction energy dissipation and thus achieve the earthquake resistance of the connection node structure;

[0050] In an embodiment of the present invention, the moving driving member includes a threaded hole 960 opened on the limit seat 940. The inner wall of the threaded hole 960 is threadedly connected with an adjusting bolt 970. One end of the adjusting bolt 970 penetrates through the guide seat 950, the fixed seat 400 and the beam-column 100, and the outer side wall of the adjusting bolt 970 is rotatably connected to the guide seat 950, the fixed seat 400 and the beam-column 100 respectively;

[0051] Specifically, rotate the adjusting bolt 970. Under the guidance of the guiding seat 950, the adjusting bolt 970 drives the limiting seat 940 to move. The limiting seat 940 pushes against the protrusion 930, causing the B inclined surface 921 on the pushing member 920 to closely adhere to the A inclined surface 911. Through the wedge action of the B inclined surface 921 and the A inclined surface 911, the longitudinal thrust is converted into the lateral displacement of the squeezing member 910. The lateral movement of the squeezing member 910 directly squeezes the first friction member 500 and the second friction member 700, changing the force applied to the first friction member 500 and the second friction member 700, thereby being able to change the magnitude of the frictional force.

[0052] In an embodiment of the present invention, both the first friction member 500 and the second friction member 700 are arranged in a plate shape. The plate-shaped structure provides continuous planar contact, making the frictional pressure distribution more uniform, avoiding premature wear or deformation caused by local stress concentration. The plate-shaped form has a relatively high flexural rigidity and is not easily distorted during repeated sliding, ensuring the stable fitting of the friction surfaces.

[0053] In an embodiment of the present invention, friction pads (not shown in the figure) are coated on one side of the first friction member 500 and the second friction member 700 adjacent to each other. The friction pads absorb seismic energy through plastic deformation. Their material properties (such as viscoelasticity) can enhance the energy dissipation efficiency, reduce the transmission of structural vibrations, and, as replaceable energy dissipation media, avoid direct wear of the substrates of the first friction member 500 and the second friction member 700, extending the service life of the core components.

[0054] In an embodiment of the present invention, anti-slip patterns (not shown in the figure) are provided on one side of the first friction member 500 and the second friction member 700 adjacent to each other. The patterns (such as serrated or wavy) provide higher static frictional force at the initial stage of sliding through microscopic engagement. The multi-directional grooves formed by the patterns can disperse the sliding direction, preventing the instantaneous dislocation of the friction surface caused by unidirectional inertial force and improving the seismic reliability.

[0055] In an embodiment of the present invention, a plurality of through holes 310 are formed in the connecting plate 300, and a plurality of strip-shaped grooves 430 are formed through the bearing portion 410. The plurality of strip-shaped grooves 430 correspond to the plurality of through holes 310 one by one. The connecting plate 300 and the bearing portion 410 are connected by bolts passing through the corresponding strip-shaped grooves 430 and through holes 310.

[0056] Specifically, the first friction member 500 is fixed on the fixed seat 400. The lateral groove 510 allows the limit bolt 820 to slide in the horizontal direction. The second friction member 700 is fixed on the fixed plate 600. The vertical groove 710 allows the limit bolt 820 to slide in the vertical direction, so as to avoid the situation where the displacement of the beam-column 100 and the I-beam 200 during an earthquake easily causes the connection bolts to break.

[0057] Moreover, the sliding friction of the bolt within the strip-shaped groove 430 can dissipate seismic energy, release partial displacement stress, avoid brittle failure caused by rigid connection, and form a secondary energy dissipation path, which complements the first friction member 500 and the second friction member 700. The sliding of the bolt within the strip-shaped groove 430 allows the fixed seat 400 to undergo limited plastic deformation, enhancing the overall ductility of the structure and avoiding sudden failure.

[0058] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0059] In the present invention, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0061] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0062] In the accompanying drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference may be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention may be combined with each other.

[0063] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An aseismic connection joint structure for prefabricated building modules, used for connecting a beam-column (100) and an I-beam (200), characterized in that, Including: Two connecting plates (300), symmetrically installed at the ends of the I-beam (200); A fixed seat (400), fixedly installed on the beam-column (100). There are two symmetrically arranged bearing parts (410) on the fixed seat (400). Slots (420) for inserting the connecting plates (300) are provided on the bearing parts (410). The connecting plates (300) and the bearing parts (410) are connected by bolts; N first friction members (500), arranged between the two bearing parts (410), and one side of the N first friction members (500) is fixedly connected to the fixed seat (400) respectively. Transverse grooves (510) are provided on the N first friction members (500); A fixing plate (600), one side of which is fixedly connected to the end of the beam-column (100); N + 1 second friction members (700), one side of which is fixedly connected to the fixing plate (600). Vertical grooves (710) are provided on the N + 1 second friction members (700). The N + 1 second friction members (700) and the N first friction members (500) are staggered. N is an integer and N≥2; Two limiting plates (800), respectively arranged on both sides of the N + 1 second friction members (700). One side of the two limiting plates (800) is fixedly connected to the fixing plate (600) respectively. Mounting holes (810) are provided on the two limiting plates (800); A limiting bolt (820), one end of which passes through the mounting hole (810), the transverse groove (510) and the vertical groove (710) and is threadedly connected with a nut; Two friction adjusting mechanisms (900), symmetrically arranged on the fixed seat (400) and located outside the N first friction members (500). The friction adjusting mechanism (900) can adjust the pressure applied to the first friction member (500) and the second friction member (700).

2. The earthquake-resistant connection joint structure of a prefabricated building module according to claim 1, characterized in that, The friction adjusting mechanism (900) includes two groups of symmetrically arranged friction adjusting components. The friction adjusting component includes symmetrically arranged pressing members (910). A pushing member (920) is arranged on one side of the two pressing members (910). Part of the pushing member (920) is between the two pressing members (910). A trapezoidal protrusion (930) is fixedly connected to the side of the pushing member (920) away from the pressing member (910). A limiting seat (940) is arranged on the side of the protrusion (930) away from the pushing member (920). An inward concave groove is provided on the limiting seat (940). A guiding seat (950) is slidably connected to the outside of the limiting seat (940). One side of the guiding seat (950) is fixedly connected to the fixed seat (400). A moving driving member for driving the limiting seat (940) to move relatively close to or away from the pushing member (920) is connected to one side of the limiting seat (940).

3. The aseismic connection joint structure of a prefabricated building module according to claim 2, characterized in that, Through holes for the limiting bolt (820) to pass through are provided on the pressing members (910).

4. The aseismic connection joint structure of a prefabricated building module according to claim 2, characterized in that, On one side of the extrusion part (910) close to the pushing part (920), there is an A inclined plane (911). On one side of the pushing part (920) close to the extrusion part (910), two B inclined planes (921) are symmetrically arranged. The B inclined plane (921) is matched with the A inclined plane (911) on its one side.

5. The aseismic connection joint structure of a prefabricated building module according to claim 2, characterized in that The moving driving part includes a threaded hole (960) opened on the limit seat (940). The inner wall of the threaded hole (960) is threadedly connected with an adjusting bolt (970). One end of the adjusting bolt (970) penetrates through the guide seat (950), the fixed seat (400) and the beam column (100), and the outer side wall of the adjusting bolt (970) is respectively rotatably connected with the guide seat (950), the fixed seat (400) and the beam column (100).

6. The aseismic connection joint structure of a prefabricated building module according to claim 1, characterized in that, Both the first friction part (500) and the second friction part (700) are arranged in a plate shape.

7. The aseismic connection joint structure of a prefabricated building module according to claim 1, characterized in that, Friction pads are coated on the adjacent sides of the first friction part (500) and the second friction part (700).

8. The aseismic connection joint structure of a prefabricated building module according to claim 1, characterized in that, Anti-slip patterns are arranged on the adjacent sides of the first friction part (500) and the second friction part (700).

9. The aseismic connection joint structure of a prefabricated building module according to claim 1, characterized in that, A plurality of through holes (310) are opened on the connecting plate (300). A plurality of strip-shaped grooves (430) are penetrated and opened on the bearing part (410). The plurality of strip-shaped grooves (430) correspond to the plurality of through holes (310) one by one. The connecting plate (300) and the bearing part (410) are connected by bolts passing through the corresponding strip-shaped grooves (430) and through holes (310).

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