A steel sleeve rubber bolt hybrid modular building connection node and connection method

Abstract

The present application relates to the technical field of modular building nodes, and discloses a steel sleeve and rubber bolt hybrid modular building connection node and connection method, wherein the connection node is used for connecting FRP beam components and column components, and comprises: an inner steel sleeve, which serves as a basic connection member, and a positioning steel plate is welded and installed on the outside thereof, wherein the positioning steel plate is used for limiting the connection between the inner steel sleeve and the column component, and is also used as an operating platform for the on-site installation of the beam component; a connection component, which is used to cooperate with the inner steel sleeve to cover the beam component and the column component and fix them thereto; an FRP fiber cloth, which is used to wrap around the corresponding connection parts of the beam component and the column component, and before the FRP fiber cloth is wrapped, the ends of the beam and column components are pre-polished. The steel sleeve and rubber bolt hybrid beam-column connection node proposed by the present invention can take into account both the node bearing capacity and the characteristics of the FRP profile component itself, and has the outstanding advantages of good force performance and rapid splicing.

Description

Technical Field

[0001] The invention relates to the technical field of modular building nodes, and in particular to a steel sleeve rubber bolt hybrid modular building connection node and a connection method. Background Art

[0002] Fiber-reinforced composite pultruded profiles are also known as FRP profiles. They have the advantages of light weight, high strength, strong corrosion resistance, and good fatigue resistance. Using them as load-bearing components in the field of civil engineering can avoid many disadvantages of traditional building materials and is conducive to the realization of building industrialization and intelligent construction. Therefore, the research and development of new FRP modular building systems based on FRP profiles can, on the one hand, develop new application scenarios for FRP profiles, and on the other hand, comply with the principles of green and low-carbon, which can inject new vitality into the construction industry and promote high-quality development of the construction industry.

[0003] FRP profiles are typical anisotropic materials, and the difficulty of connection technology has become an important bottleneck problem restricting its development. At present, FRP pultruded profiles generally use various forms of connectors, and achieve effective connection of nodes through adhesives or bolt connections. Among them, bolt connections make local holes on the surface of the component, which will cut off the fiber material, thereby reducing the overall strength of the component. Adhesive connections can better take into account the characteristics of FRP materials themselves, have significant development advantages, and are often used for the connection of non-structural components. Although the hybrid connection of glue bolts can combine the advantages of both connection methods, although it is currently less used, the results of many studies have shown that it has good stress performance and is an important development direction for achieving effective connection of composite materials. Considering that the existing connectors have shortcomings in strength, stiffness, and construction convenience, FRP profiles lack a relatively unified connection method.

[0004] Therefore, it is of great significance to develop new FRP profile connection nodes. The present invention aims to provide a steel sleeve rubber bolt hybrid modular building connection node to improve the shortcomings of the prior art. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a steel sleeve rubber bolt hybrid modular building connection node and connection method, aiming to solve the problems of insufficient construction methods and bearing capacity of the existing FRP pultruded profile node connection technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a steel sleeve rubber plug hybrid modular building connection node, the connection node is used for connecting FRP beam components and column components, comprising:

[0007] The inner steel sleeve is used as a basic connecting member, and a positioning steel plate is welded and installed on the outside thereof. The positioning steel plate is used to limit the connection between the inner steel sleeve and the column member, and is also used as an operating platform for the on-site installation of the beam member;

[0008] A connecting member, which is used to cooperate with the inner steel sleeve to cover the beam member and the column member and fix them thereto;

[0009] The FRP fiber cloth is used to be wound around corresponding connection parts of the beam components and the column components.

[0010] Preferably, the connecting member includes an outer steel sleeve, and a plurality of bolt through holes are opened on both sides of the outer steel sleeve for being connected and fixed with the inner steel sleeve by bolts. One side of the outer steel sleeve is also fixedly connected with a U-shaped clamp, and the U-shaped clamp is connected to the beam member by wrapping and bonding with FRP fiber cloth.

[0011] Preferably, the connecting member includes an outer steel sleeve II, and a plurality of bolt through holes are provided on both sides of the outer steel sleeve II for being connected and fixed with the inner steel sleeve by bolts. One side of the outer steel sleeve II is also fixedly connected with a U-shaped clamp II, and a plurality of bolt through holes are provided on the front and rear sides of the U-shaped clamp II for being connected with the beam member by bolts. After the U-shaped clamp II is connected with the beam member, it is wrapped and bonded and fixed by FRP fiber cloth.

[0012] Preferably, the connecting member includes two upper and lower outer steel sleeves three, which are symmetrically distributed in an upper and lower form, and the two outer steel sleeves three are connected by bolts. A U-shaped clip three is fixedly connected to one side of the two outer steel sleeves three, one of the U-shaped clip three is connected to the lower beam member, and the other U-shaped clip three is connected to the upper beam member. When the column member and the beam member are combined and connected, FRP fiber cloth is wrapped around the corresponding position for fixing.

[0013] Preferably, the connecting member includes an integrated outer steel sleeve, which is an integral member, and has two barrel grooves on its left side and two clips on its right side, which are symmetrically distributed in an upper and lower form. A plurality of bolt through holes are provided at the front and rear parts of the barrel grooves, the upper barrel groove is connected to the upper column member, the lower barrel groove is connected to the lower column member, the upper clip is connected to the upper beam member, and the lower clip is connected to the lower beam member. When the column member and the beam member are combined and connected, FRP fiber cloth is wrapped around the corresponding parts for fixing.

[0014] Preferably, the number of winding layers of the FRP fiber cloth is not less than three, and the winding arrangement directions of the FRP fiber cloth remain different, and the positioning steel plate is provided with a plurality of bolt through holes for connection with the beam member.

[0015] Preferably, the wall thickness of the inner steel sleeve and the thickness of the positioning steel plate are not less than 10 mm.

[0016] Preferably, before the FRP fiber cloth is wound, the ends of the beam components and the column components are polished in advance.

[0017] To achieve the above object, the present invention is implemented by the following another technical solution:

[0018] A connection method of a steel sleeve rubber bolt hybrid modular building connection node, using the steel sleeve rubber bolt hybrid modular building connection node mentioned in the above content, includes the following method steps:

[0019] S1. Prepare beam components, column components, inner steel sleeves, positioning steel plates, connecting components and FRP fiber cloth in advance;

[0020] S2. Weld and fix the positioning steel plate on the inner steel sleeve, then insert the inner steel sleeve into the column component, and wrap the FRP fiber cloth around the outside of the column component for bonding and fixing;

[0021] S3. Connect the connecting member to the inner steel sleeve by bolts, then place the beam member on the flange of the positioning steel plate and fix it by bolts. Finally, wrap the impregnated FRP fiber cloth around the outside of the beam member and column member to bond and fix them, and complete the construction and installation operation of the node.

[0022] The present invention provides a steel sleeve rubber plug hybrid modular building connection node, which has the following beneficial effects:

[0023] 1. The present invention contributes to the development of low-rise and multi-story modular building systems based on FRP profiles by proposing a split and integrated connection node structure inside a module unit suitable for connecting tubular cross-section FRP profile components.

[0024] 2. The steel sleeve-rubber bolt hybrid beam-column connection node proposed in the present invention can take into account both the node bearing capacity and the characteristics of the FRP profile component itself, and has the outstanding advantages of good stress performance and rapid splicing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a stereoscopic diagram of the inner steel sleeve installation process in the first embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram showing the completion of the installation of the inner steel sleeve in the first embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the pre-installation of a beam component in Embodiment 1 of the present invention;

[0028] Figure 4 This is a schematic diagram of the connection position of the outer steel sleeve in the first embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the winding state of the FRP fiber cloth in the first embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the connection state between the outer steel sleeve and the U-shaped clamp in the first embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the node installation status in the second embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of the second outer steel sleeve and the second U-shaped clamp in the second embodiment of the present invention;

[0033] Fig. 9 This is a schematic diagram of the installation process of the outer steel sleeve in the third embodiment of the present invention;

[0034] Fig.10 This is a schematic diagram of the three combined states of the upper and lower outer steel sleeves in the third embodiment of the present invention;

[0035] Fig.11 This is a schematic diagram of the installation process of the upper beam component in the third embodiment of the present invention;

[0036] Fig.12 This is a schematic diagram of the installation state of the beam component and the column component in the third embodiment of the present invention;

[0037] Fig.13 This is a schematic diagram of a primary winding state of the FRP fiber cloth in the third embodiment of the present invention;

[0038] Fig.14 This is a schematic diagram of the secondary winding state of the FRP fiber cloth in the third embodiment of the present invention;

[0039] Fig.15 This is a schematic diagram of a complete installation state of the fourth embodiment of the present invention;

[0040] Fig.16 It is a schematic diagram of the overall structure of the integrated outer steel sleeve of the present invention;

[0041] Fig.17 It is a schematic diagram of the connection position of the inner steel sleeve and the positioning steel plate of the present invention.

[0042] Among them, 1. inner steel sleeve; 2. positioning steel plate; 3. connecting component; 301. outer steel sleeve one; 302. U-shaped clamp one; 303. outer steel sleeve two; 304. U-shaped clamp two; 305. outer steel sleeve three; 306. U-shaped clamp three; 307. cylinder groove; 308. clamp; 4. FRP fiber cloth, 5. FRP beam component. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments 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.

[0044] Embodiment 1:

[0045] Please refer to the attached Figure 1 -Attached Figure 6 The embodiment of the present invention provides a steel sleeve rubber plug hybrid modular building connection node, which is used to connect the FRP beam component 5 and the column component, including:

[0046] The inner steel sleeve 1 is used as a basic connecting member, and a positioning steel plate 2 is welded and installed on the outside thereof. The positioning steel plate 2 is used for limiting the connection between the inner steel sleeve 1 and the column member, and is also used as a connection operation platform for the on-site installation of the beam member. The positioning steel plate 2 is provided with a plurality of bolt through holes for connecting with the beam member;

[0047] The connecting member 3 is used to cooperate with the inner steel sleeve 1 to cover the beam member and the column member and fix them therewith;

[0048] The FRP fiber cloth 4 is used to be wound around the corresponding connection parts of the beam components and the column components.

[0049] The connecting member 3 includes an outer steel sleeve 301, and a plurality of bolt through holes are provided on both sides of the outer steel sleeve 301 for connecting and fixing with the inner steel sleeve 1 by bolts. A U-shaped clamp 302 is also fixedly connected to one side of the outer steel sleeve 301, and the U-shaped clamp 302 is connected to the beam member by wrapping and bonding with the FRP fiber cloth 4;

[0050] Specifically, this embodiment also provides a connection method for a steel sleeve rubber plug hybrid modular building connection node. Using the above-mentioned steel sleeve rubber plug hybrid modular building connection node, in actual application, it is mainly installed and used through the following steps:

[0051] S1, prepare in advance the inner steel sleeve 1, the positioning steel plate 2, the bolts, the connecting member 3 and the FRP fiber cloth;

[0052] S2, the inner steel sleeve 1 is welded with the positioning steel plate 2, inserted into the column component, and the FRP fiber cloth 4 is wrapped around the outside of the column component for bonding and fixing;

[0053] S3. The outer steel sleeve 301 is connected to the inner steel sleeve 1 by bolts. The positioning steel plate 2 is used as an operating platform for the on-site installation of the beam component. The beam component is placed on the flange of the positioning steel plate 2 and is covered with a U-shaped clamp 302 connected to the outer steel sleeve 301. The beam component is connected to the positioning steel plate 2 by bolts, and then the impregnated FRP fiber cloth 4 is wrapped around the outside for bonding and fixing, completing the connection between the node and the beam component and the column component.

[0054] In this embodiment, the wrapping width of the FRP fiber cloth 4 is greater than the height of the outer steel sleeve 301. The number of winding layers can be increased or decreased according to different fiber material types, with a minimum of not less than three layers, and the winding arrangement directions of the FRP fiber cloth 4 are kept different to improve the anisotropy and crack resistance of the structure. The pre-impregnated FRP cloth 4 enhances the sealing and waterproof performance of the connection parts, and provides a durable protective layer for the structure after curing, thereby enhancing durability and environmental adaptability.

[0055] Furthermore, in order to ensure effective bearing capacity, the thickness of the inner steel sleeve 1, the outer steel sleeve 301 and the positioning steel plate 2 should meet certain requirements, wherein the wall thickness of the inner steel sleeve 1 and the positioning steel plate 2 should not be less than 10 mm, and the thickness of the outer steel sleeve 301 should not be less than 5 mm; at the same time, the cross-sectional width of the inner steel sleeve 1 and the outer steel sleeve 301 should match the cross-sectional area of ​​the beam-column component, leaving a certain operating space;

[0056] At the same time, before winding the FRP fiber cloth 4 around the column components and beam components, the corresponding winding parts need to be polished in advance, and before bolt connection, the beam components need to be drilled in advance.

[0057] Embodiment 2:

[0058] Please refer to the attached Figure 7 -Attached Figure 8 The embodiment of the present invention provides a steel sleeve rubber plug hybrid modular building connection node, which is used to connect the FRP beam component 5 and the column component, including:

[0059] The inner steel sleeve 1 is used as a basic connecting member, and a positioning steel plate 2 is welded and installed on the outside. The positioning steel plate 2 is used to limit the connection between the inner steel sleeve 1 and the column member, and is also used as a connection operation platform for the on-site installation of the beam member;

[0060] The connecting member 3 is used to cooperate with the inner steel sleeve 1 to cover the beam member and the column member and fix them therewith;

[0061] FRP fiber cloth 4, which is used to wrap around the corresponding connection parts of the beam component and the column component;

[0062] The connecting member 3 includes an outer steel sleeve 2 303, and a plurality of bolt through holes are provided on both sides of the outer steel sleeve 2 303 for connecting and fixing with the inner steel sleeve 1 by bolts. A U-shaped clamp 2 304 is also fixedly connected to one side of the outer steel sleeve 2 303, and a plurality of bolt through holes are provided on both the front and rear sides of the U-shaped clamp 2 304 for connecting with the beam member by bolts. The U-shaped clamp 2 304 is connected with the beam member by wrapping and bonding with the FRP fiber cloth 4, and the number of wrapped layers of the FRP fiber cloth 4 is at least three, and the winding arrangement directions of the FRP fiber cloth 4 are kept different to improve the anisotropy and crack resistance of the structure;

[0063] Specifically, this embodiment also provides a connection method for a steel sleeve rubber plug hybrid modular building connection node. Using the above-mentioned steel sleeve rubber plug hybrid modular building connection node, in actual application, it is mainly installed and used through the following steps:

[0064] S1, prepare in advance the inner steel sleeve 1, the positioning steel plate 2, the bolts, the connecting member 3 and the FRP fiber cloth 4;

[0065] S2, the inner steel sleeve 1 is welded with the positioning steel plate 2 and inserted into the column component, the outer steel sleeve 301 is connected with the inner steel sleeve 1 by bolts, and the outside of the column component is wrapped with FRP fiber cloth 4 for bonding and fixing;

[0066] S3. Insert the beam component into the U-shaped clamp 2 304 and fix it with bolts to complete the connection between the node and the beam component and the column component.

[0067] In this embodiment, in order to ensure the effective bearing capacity, the thickness of the inner steel sleeve 1, the outer steel sleeve 2 303 and the positioning steel plate 2 should meet certain requirements, among which the wall thickness of the inner steel sleeve 1 and the positioning steel plate 2 should not be less than 10 mm, and the thickness of the outer steel sleeve 2 303 should not be less than 5 mm; at the same time, the cross-sectional width of the inner steel sleeve 1 and the outer steel sleeve 2 303 should match the cross-sectional area of ​​the beam-column component, leaving a certain operating space. At the same time, before bolting, the beam component needs to be drilled in advance.

[0068] Embodiment three:

[0069] Please refer to the attached Fig. 9 -Attached Fig.14 The embodiment of the present invention provides a steel sleeve rubber plug hybrid modular building connection node, which is used to connect the FRP beam component 5 and the column component, including:

[0070] The inner steel sleeve 1 is used as a basic connecting member, and a positioning steel plate 2 is welded and installed on the outside. The positioning steel plate 2 is used to limit the connection between the inner steel sleeve 1 and the column member, and is also used as a connection operation platform for the on-site installation of the beam member;

[0071] The connecting member 3 is used to cooperate with the inner steel sleeve 1 to cover the beam member and the column member and fix them therewith;

[0072] FRP fiber cloth 4, which is used to wrap around the corresponding connection parts of the beam component and the column component;

[0073] The connecting member 3 includes two upper and lower outer steel sleeves three 305, which are symmetrically distributed in an upper and lower form. The two outer steel sleeves three 305 are connected by bolts. A U-shaped clamp three 306 is fixedly connected to one side of the two outer steel sleeves three 305. One of the U-shaped clamps three 306 is connected to the lower beam member by bolts, and the other U-shaped clamp three 306 is connected to the upper beam member by bolts. When the column member and the beam member are combined and connected, FRP fiber cloth 4 is wrapped around the corresponding position for fixing.

[0074] Specifically, this embodiment also provides a connection method for a steel sleeve rubber plug hybrid modular building connection node. Using the above-mentioned steel sleeve rubber plug hybrid modular building connection node, in actual application, it is mainly installed and used through the following steps:

[0075] S1, prepare in advance a plurality of inner steel sleeves 1, positioning steel plates 2, bolts, connecting members 3 and FRP fiber cloths 4;

[0076] S2, the inner steel sleeve 1 is welded with the positioning steel plate 2 and inserted into the column member. The two outer steel sleeves 305 and the U-shaped clamp 306 installed on one side are connected and fixed by bolts.

[0077] S3, the lower outer steel sleeve 305 is connected to the lower inner steel sleeve 1 by bolts, and the upper outer steel sleeve 305 is connected to the upper sleeved inner steel sleeve 1 by bolts;

[0078] S4, insert the two beam members horizontally into the two U-shaped clamps 306, and fix them with two positioning steel plates 2 by bolts;

[0079] S5. Wrap the impregnated FRP fiber cloth 4 around the corresponding positions of the beam component and the column component for bonding and fixing, thereby completing the connection between the node and the beam component and the column component.

[0080] In this embodiment, in order to ensure the effective bearing capacity, the thickness of the inner steel sleeve 1, the outer steel sleeve 305 and the positioning steel plate 2 should meet certain requirements, among which the wall thickness of the inner steel sleeve 1 and the positioning steel plate 2 are not less than 10 mm, and the thickness of the outer steel sleeve 305 is not less than 5 mm; at the same time, the cross-sectional width of the inner steel sleeve 1 and the outer steel sleeve 305 should match the cross-sectional area of ​​the beam-column component, leaving a certain operating space. At the same time, before bolt connection, the beam component needs to be drilled in advance. The number of winding layers of the FRP fiber cloth 4 can be increased or decreased according to different fiber material types, with a minimum of not less than three layers, and the winding arrangement directions of the FRP fiber cloth 4 remain different to improve the anisotropy and crack resistance of the structure.

[0081] Embodiment 4:

[0082] Please refer to the attached Fig.15 -Attached Fig.17 The embodiment of the present invention provides a steel sleeve rubber plug hybrid modular building connection node, which is used to connect the FRP beam component 5 and the column component, including:

[0083] The inner steel sleeve 1 is used as a basic connecting member, and a positioning steel plate 2 is welded and installed on the outside. The positioning steel plate 2 is used to limit the connection between the inner steel sleeve 1 and the column member, and is also used as a connection operation platform for the on-site installation of the beam member;

[0084] The connecting member 3 is used to cooperate with the inner steel sleeve 1 to cover the beam member and the column member and fix them therewith;

[0085] FRP fiber cloth 4, which is used to wrap around the corresponding connection parts of the beam component and the column component;

[0086] The connecting member 3 includes an integrated outer steel cylinder groove 307, which is an integral member, and two cylinder grooves 307 are arranged on the left part thereof, and two clamps 308 are arranged on the right part thereof, which are symmetrically distributed in an upper and lower form, and multiple bolt through holes are arranged on both the front and rear sides of the cylinder groove 307, the upper cylinder groove 307 is connected to the upper column member, the lower cylinder groove 307 is connected to the lower column member, the upper clamp is connected to the upper beam member, and the lower clamp is connected to the lower beam member. When the column member and the beam member are combined and connected, the FRP fiber cloth 4 is wound around the corresponding parts for fixing;

[0087] Specifically, this embodiment also provides a connection method for a steel sleeve rubber plug hybrid modular building connection node. Using the above-mentioned steel sleeve rubber plug hybrid modular building connection node, in actual application, it is mainly installed and used through the following steps:

[0088] S1. Prepare the upper and lower beam components and the upper and lower column components, first fix the lower column component, insert the inner steel sleeve 1 into the upper part of the column, and place the positioning steel plate 2 on the upper end of the column component;

[0089] S2, place the lower beam component on the flange of the lower positioning steel plate 2, then insert the lower barrel groove 307 of the integrated outer steel sleeve into the inner steel sleeve 1, and insert one end of the beam component into the lower clamp 308, align the bolt holes, and fix them;

[0090] S3, first put the upper inner steel sleeve 1 into the sleeve groove 307, then place the upper unit beam on the flange of the upper positioning steel plate 2, insert it into the upper clamp 308, fix it with bolts, and then put the upper column member on the upper inner steel sleeve 1;

[0091] S4. Use the impregnated FRP cloth to wrap and fix the ends of the profile columns and profile beams of the upper and lower units, and wait for them to solidify;

[0092] S5. As needed, paste FRP cloth on the entire outer surface of the outer sleeve to complete the connection of the entire node.

[0093] In this embodiment, in order to ensure effective bearing capacity, the thickness of the inner steel sleeve 1, the integrated outer steel sleeve and the positioning steel plate 2 should meet certain requirements, wherein the wall thickness of the inner steel sleeve 1 and the positioning steel plate 2 is not less than 10 mm, and the thickness of the integrated outer steel sleeve is not less than 5 mm; at the same time, the cross-sectional width of the inner steel sleeve 1 and the integrated outer steel sleeve should match the cross-sectional width of the beam-column component, leaving a certain operating space, and at the same time, before bolt connection, the beam component needs to be drilled in advance;

[0094] Furthermore, in this embodiment, when the FRP fiber cloth 4 needs to be wound, the number of winding layers can be increased or decreased according to different fiber material types, with a minimum of not less than three layers, and the winding arrangement directions of the FRP fiber cloth 4 remain different to improve the anisotropy and crack resistance of the structure.

[0095] The steel sleeve rubber bolt hybrid modular building connection node provided by the embodiment of the present invention ensures the rapid installation of FRP beam and column components while improving the overall stability and durability of the building structure, taking into account the node bearing capacity and the characteristics of the FRP profile components themselves, and has the outstanding advantages of good force performance and rapid splicing.

[0096] 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 steel sleeve rubber plug hybrid modular building connection node, characterized in that: The connection node is used for connecting the FRP beam component and the column component, and includes: An inner steel sleeve (1) is used as a basic connecting member, and a positioning steel plate (2) is welded and installed on the outside thereof. The positioning steel plate (2) is used to limit the connection between the inner steel sleeve (1) and the column member, and is also used as a connection operation platform for the on-site installation of the beam member; A connecting member (3) is used to cooperate with the inner steel sleeve (1) to cover the beam member and the column member and fix them thereto, the connecting member (3) comprising an outer steel sleeve (301), a plurality of bolt through holes are provided on both sides of the outer steel sleeve (301) for connecting and fixing with the inner steel sleeve (1) by means of bolts, a U-shaped clamp (302) is also fixedly connected to one side of the outer steel sleeve (301), and the U-shaped clamp (302) is connected to the beam member by means of FRP fiber cloth (4) and then wrapped and bonded to fix; The FRP fiber cloth (4) is used to be wound around corresponding connection locations of the beam component and the column component.

2. A steel sleeve rubber plug hybrid modular building connection node according to claim 1, characterized in that: The connecting member (3) comprises an outer steel sleeve (303) having a plurality of bolt holes on both sides thereof for connecting and fixing with the inner steel sleeve (1) by means of bolts. A U-shaped clamp (304) is also fixedly connected to one side of the outer steel sleeve (303). The U-shaped clamp (304) has a plurality of bolt holes on both sides thereof for connecting with the beam member by means of bolts. The U-shaped clamp (304) is connected to the beam member by means of FRP fiber cloth (4) and then wrapped and bonded.

3. The steel sleeve rubber plug hybrid modular building connection node according to claim 1 is characterized in that: The connecting member (3) comprises two upper and lower outer steel sleeves three (305) which are symmetrically distributed in an upper and lower form. The two outer steel sleeves three (305) are connected by bolts. A U-shaped clamp three (306) is fixedly connected to one side of the two outer steel sleeves three (305). One of the U-shaped clamp three (306) is connected to the lower beam member by bolts, and the other U-shaped clamp three (306) is connected to the upper beam member by bolts. When the column member and the beam member are assembled and connected, FRP fiber cloth (4) is wrapped around the corresponding position for fixing.

4. The steel sleeve rubber plug hybrid modular building connection node according to claim 1 is characterized in that: The connecting member (3) comprises an integrated outer steel sleeve, which is an integral member, and is provided with two barrel grooves (307) on its left side and two clamps (308) on its right side, which are symmetrically distributed up and down. A plurality of bolt through holes are provided at the front and rear parts of the barrel groove (307), the upper barrel groove (307) is connected to the upper column member, the lower barrel groove (307) is connected to the lower column member, the upper clamp (308) is connected to the upper beam member, and the lower clamp (308) is connected to the lower beam member. When the column member and the beam member are assembled and connected, FRP fiber cloth (4) is wrapped around the corresponding parts for fixing.

5. The steel sleeve rubber plug hybrid modular building connection node according to claim 1 is characterized in that: The number of winding layers of the FRP fiber cloth (4) is not less than three, and the winding arrangement directions of the FRP fiber cloth (4) remain different. The positioning steel plate (2) is provided with a plurality of bolt through holes for connection with the beam member.

6. The steel sleeve rubber plug hybrid modular building connection node according to claim 1 is characterized in that: The wall thickness of the inner steel sleeve (1) and the thickness of the positioning steel plate (2) are not less than 10 mm.

7. The steel sleeve rubber plug hybrid modular building connection node according to claim 1 is characterized in that: Before the FRP fiber cloth (4) is wound, the ends of the beam components and column components are polished in advance.

8. A construction method for a steel sleeve rubber plug hybrid modular building connection node, using a steel sleeve rubber plug hybrid modular building connection node according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1, preparing beam components, column components, inner steel sleeves (1), positioning steel plates (2), connecting components (3) and FRP fiber cloth (4) in advance; S2, welding and fixing the positioning steel plate (2) on the inner steel sleeve (1), then inserting the inner steel sleeve (1) into the column component, and wrapping the FRP fiber cloth (4) around the outside of the column component for bonding and fixing; S3. Connect the connecting member (3) and the inner steel sleeve (1) by means of bolts, then place the beam member on the flange of the positioning steel plate (2) and connect and fix them by means of bolts, and finally wrap the impregnated FRP fiber cloth (4) around the outside of the beam member and the column member to bond and fix them, thereby completing the construction and installation operation of the node.

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