A connection node between a concrete column and a steel beam and a construction method thereof

Abstract

The invention discloses a connection node between a concrete column and a steel beam and a construction method thereof. The connection node is arranged on the outer side of the concrete column. The outer side of the concrete column is connected with a node connection mechanism. The node connection mechanism comprises a core connection member and four steel beams. The core connection member comprises: an inner end split fixing member, comprising a plurality of inner laminating plates, a fusion matching structure, and a plurality of locking nails, and the plurality of inner laminating plates are locked on the outer side of the concrete column; a middle energy-resistant component, comprising a C-type force unloading frame, a closing plate is embedded on both sides of the C-type force unloading frame, and a side unloading member is arranged on the closing plate; an outer end stabilizing component, comprising two L-type connection frames fixedly connected to two steel beams, the two L-type connection frames are connected together by connecting nails to form an outer protection frame, and the outer protection frame is attached to one side of the opening of the C-type force unloading frame. The invention arranges the node core members in sections and layers, and also ensures that there is sufficient strength and elastic support between the node core members.

Description

Technical Field

[0001] The invention relates to a building construction component, in particular to a connection node between a concrete column and a steel beam and a construction method thereof. Background Art

[0002] Prefabricated buildings refer to buildings that are manufactured in factories and transported to construction sites, where they are assembled and installed on site through reliable connection methods. They mostly use a combination of concrete columns and steel beams. The connection nodes between concrete columns and steel beams mainly use a frame structure composed of reinforced concrete columns and steel beams. The two materials with different elastic moduli, reinforced concrete columns and steel beams, are combined together through the connection nodes.

[0003] Traditional steel frame structures are all prefabricated in an integrated manner. This means that after installation and use, if part of the beam is damaged in an earthquake or extreme weather, the entire connection node needs to be replaced, which results in high maintenance costs. The existing part that fixes the steel beam and the part that fixes the concrete column are set to be separate, so that when the steel beam part is deformed, only the installed part of the steel beam can be replaced without replacing the entire part. However, it is still easy to cause the following problems: 1. Since the steel beam may move toward one side of the concrete column during the deformation process, it is very easy to cause the fixed section of the steel beam to deform and affect the structure that is connected to the fixed end of the steel beam, thereby affecting the shear resistance of the entire connection node. Even if welding repair is used, it is difficult to ensure the stability of the subsequently installed steel beam; 2. It is difficult to confirm whether the position of the concrete column and the connection node is stable after vibration, and the loosening of the bolts on one side can easily lead to instability of the entire node.

[0004] Therefore, this case aims to provide a connection node between concrete columns and steel beams and a construction method thereof, which can separate the steel beam fixings from the node core components, and at the same time divide the node core components into sections and layers, so that there is sufficient strength and elastic support between the node core components, so that after earthquake resistance, the node core component at a single end can be replaced without replacing the entire component, and the shear resistance of the repaired connection node is similar to that of the initial installation. Summary of the invention

[0005] The present invention provides a connection node between a concrete column and a steel beam and a construction method thereof, which can effectively solve the above-mentioned problem.

[0006] The present invention is achieved in that:

[0007] A connection node between a concrete column and a steel beam is arranged on the outside of the concrete column. The outside of the concrete column is connected with a node connection mechanism. The node connection mechanism includes a core connection member and four steel beams. The core connection member includes:

[0008] The inner end split fixing part comprises a plurality of inner bonding plates arranged on the outer side of the concrete column, wherein the inner bonding plates are connected to form a square structure by a locking structure, a melting fitting structure is arranged on one side of the inner bonding plate close to the concrete column, and a plurality of locking nails are arranged at both ends of the melting fitting structure to lock the plurality of inner bonding plates on the outer side of the concrete column, melt the melt in the melting fitting structure to make the inner bonding plates close to the concrete column, and drive the locking nails into the concrete column;

[0009] The middle energy-resistant component comprises a C-type unloading frame attached to the outer side of the inner bonding plate, a closed plate is embedded on both sides of the C-type unloading frame, and a side unloading piece is arranged on the closed plate. Adjacent C-type unloading frames are connected by the side unloading pieces, and an inner unloading piece is arranged on the inner side of the C-type unloading frame. When the concrete column or steel beam is vibrated, the adjacent C-type unloading frames and the C-type unloading frames unload themselves and the concrete column or steel beam;

[0010] The outer end stabilizing component includes two L-shaped connecting frames fixedly connected to the two steel beams. The two L-shaped connecting frames are connected together by connecting nails to form an outer protection frame. The outer protection frame is attached to one side of the opening of the C-shaped unloading frame.

[0011] As a further improvement, the inner bonding plate is provided with a blind hole and a matching hole respectively, and the locking structure is a locking bolt, which passes through the blind hole and matches with the matching hole of the adjacent inner bonding plate.

[0012] As a further improvement, the fusion fitting structure comprises an inner concave cavity opened on the inner side of the inner bonding plate, a fusion rubber plate is embedded in the inner concave cavity, and a plurality of docking holes are opened on the side of the inner bonding plate away from the fusion rubber plate, through which the fusion rubber plate is heated.

[0013] As a further improvement, the side unloading member is a plurality of spring groups connecting two closing plates, and the spring group includes a first spring connecting the two closing plates, and a second spring located at the lower end of the first spring and connecting the two closing plates.

[0014] As a further improvement, the top of the closing plate is fixedly connected to the top of the inner side of the C-shaped force unloading frame, and the bottom of the closing plate is spaced apart from the bottom of the inner side of the C-shaped force unloading frame.

[0015] As a further improvement, the internal unloading member is a plurality of energy-resistant springs arranged on the inner side of the C-shaped unloading frame.

[0016] As a further improvement, the L-shaped connecting frame comprises two L-shaped laminating plates, two top corners of the L-shaped laminating plates are integrally connected with an angle seat, and adjacent angle seats are connected by connecting nails.

[0017] As a further improvement, a bottom receiving plate and a top receiving plate are provided at the bottom of the inner bonding plate, and the bottom receiving plate and the top receiving plate are respectively fixedly connected to the bottom and the top of the L-shaped connecting frame.

[0018] The present invention also provides a construction method for a connection node between a concrete column and a steel beam, comprising the above-mentioned connection node between a concrete column and a steel beam, comprising the following steps:

[0019] S1: Prefabricate the core connector and four steel beams in the factory;

[0020] S2: Determine the installation position of the core connector and draw the line according to the position of the concrete column and the preset position of the steel beam;

[0021] S3: First, install the inner end split fixing part to the outer side of the concrete column according to the position of the drawn line, then install the middle energy-resistant component on the periphery of the inner end split fixing part, and finally install the outer end stabilizing component on the outer side of the middle energy-resistant component;

[0022] S4: pouring and curing concrete for core connectors;

[0023] S5: Lock the steel beam to the outside of the outer end stabilizing assembly to complete the overall installation.

[0024] As a further improvement, the installation of the inner end split fixing member in step S specifically includes:

[0025] S21: according to the positions of the markings, the inner bonding plates are bonded to the outer sides of the concrete columns in pairs, so that the inner bonding plates form a rectangular structure and are initially fixed to the outer sides of the concrete columns;

[0026] S22: abutting the heating structure against the molten matching structure and melting it, so that the inner bonding plate is tightly bonded to the outer side of the concrete column;

[0027] S23: When the molten matching structure has not yet solidified, the locking nails are driven into the outer side of the concrete column to form a rigid connection between the inner bonding plate and the concrete column.

[0028] The beneficial effects of the present invention are:

[0029] In the process of matching the core connector and the concrete column, bolt locking is often used directly to establish a rigid connection between the core connector and the concrete column, thereby ensuring the stability of the entire connection node. In order to fill the gap between the two, some structures will also be filled with a resin layer. However, this will require the cooperation of multiple people to install the core connector, and it is difficult to accurately fix it to the pre-planned position. Secondly, when vibration repair occurs, if the entire surface of the core connector is deformed and displaced, it needs to be replaced as a whole. Therefore, the present invention uses the inner end split fixing piece to set the inner bonding plate in sections during the installation stage, so that the four inner bonding plates are in the concrete column. The outer side is initially in a hoop state, and then the meltable material in the molten matching structure is melted, so that the inner bonding plate is further matched with the concrete column by hot-melt connection, which not only provides a positioning basis for the subsequent rigid connection, but also fills the gap between the inner bonding plate and the concrete column, without the need to fill the closed material separately, and the molten material in the molten matching structure is driven into the locking nail before it solidifies, so that the locking nail is accurately positioned. The entire installation process is a segmented and stable installation, which is not only accurately positioned during installation, but also stable and seamless. Even after subsequent vibration, only one side of the inner bonding plate is damaged, and the use of other surfaces is not affected.

[0030] In the process of matching different inner bonding plates, in order to avoid affecting the setting of the middle energy-resistant component and occupying excess space, and also to improve stability, the present invention opens blind holes and matching holes at the position of the inner bonding plates, so that the locked locking bolts can be directly retracted into the blind holes, so that the surface of the square structure formed by the inner bonding plates is smooth, which is stable itself and does not affect other structures.

[0031] The molten matching structure needs to be activated after the initial matching of the inner bonding plate in order to improve its matching effect with the concrete column. Therefore, the present invention provides a docking hole and an inner concave cavity in the inner bonding plate, so that the external heating structure can extend into the inner concave cavity through the docking hole to heat and melt the molten rubber sheet. The melted molten rubber sheet can flow in the gap between the concrete column and the inner bonding plate. After it solidifies, it forms an adhesive layer and a closed layer, thereby improving the matching effect between the concrete column and the inner bonding plate and preventing the occurrence of cavity phenomenon.

[0032] If it is only a rigid connection, the deformation of the entire node when it is vibrated is more serious. Therefore, some designers set up energy-resistant components in the node. However, once the energy-resistant components are poured with concrete, the overall tensile effect is greatly affected. Therefore, the present invention sets a middle energy-resistant component, and sets the middle energy-resistant component in the middle of the inner end split fixing part and the outer end stabilizing component, and covers the upper and lower ends thereof, so as to avoid the influence of concrete pouring. After the inner end split fixing part or the outer end stabilizing component is deformed alone, the middle energy-resistant component can also be unloaded through the side unloading parts and the internal unloading parts, thereby alleviating the deformation phenomenon that may occur during earthquake and reducing the loss caused by building vibration.

[0033] When the inner split fixing part or the outer stable component is subjected to vibration, it is necessary to rely on the deformation or shaking of the middle energy-resistant component itself to greatly alleviate the vibration. The energy resistance of the middle energy-resistant component is mainly achieved through two parts. One part is to realize the interaction between different groups of C-type unloading frames through the side unloading parts, and the other part is the internal unloading parts on the inner side of the C-type unloading frame to resist energy, thereby realizing the energy resistance on the left and right sides and the upper and lower sides, and avoiding the phenomenon of pure rigid contact directly causing structural deformation.

[0034] The steel beam needs to be connected to the node, and for the stability of the steel beam, its installation end needs to be stable. Obviously, it cannot be installed on the outside of the middle energy-resistant component. Therefore, the present invention can not only provide a mounting surface for the steel beam by setting an outer end stabilizing component, but also establish an external protective barrier on the middle energy-resistant component to prevent small external fluctuations from directly affecting the middle energy-resistant component. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0037] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0038] Figure 3 The present invention Figure 2 Cross-section view at AA in the middle.

[0039] Figure 4 It is a structural schematic diagram of the inner end split fixing member of the present invention.

[0040] Figure 5 It is a schematic structural diagram of the inner bonding board of the present invention.

[0041] Figure 6 It is a schematic diagram of the top view of the structure of the middle energy-resistant component of the present invention.

[0042] Figure 7 It is a schematic diagram of the three-dimensional structure of the middle energy-resistant component of the present invention.

[0043] Figure 8 It is a schematic structural diagram of the outer end stabilizing component of the present invention.

[0044] Fig. 9 It is a structural schematic diagram of the present invention in cooperation with a concrete column.

[0045] In the figure:

[0046] Concrete column 10, node connection mechanism 20, core connection part 21, steel beam 22, inner end split fixing part 30, inner bonding plate 31, blind hole 311, matching hole 312, locking structure 32, molten matching structure 33, molten rubber plate 332, docking hole 333, locking nail 34, middle energy-resistant component 40, C-type unloading frame 41, closing plate 42, side unloading part 43, first spring 431, second spring 432, inner unloading part 44, outer end stabilizing component 50, L-shaped connecting frame 51, L-shaped bonding plate 511, angle seat 512, connecting nail 52, bottom receiving plate 60. DETAILED DESCRIPTION

[0047] In order to make the embodiments of the present invention, all belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0048] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as referring to the purpose, technical solutions and advantages of the methods. To be more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 indicate or imply relative importance or implicitly indicate the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0049] Reference Figure 1 to Figure 6 As shown, a connection node between a concrete column and a steel beam is arranged on the outside of a concrete column 10, and a node connection mechanism 20 is connected to the outside of the concrete column 10, and the node connection mechanism 20 includes a core connection member 21 and four steel beams 22, and the core connection member 21 includes: an inner end split fixing member 30, including a plurality of inner bonding plates 31 arranged on the outside of the concrete column 10, and the inner bonding plates 31 are connected to each other into a square structure through a locking structure 32, and a fusion fitting structure 33 is provided on the side of the inner bonding plate 31 close to the concrete column 10, and a plurality of locking nails 34 are provided at both ends of the fusion fitting structure 33, and the plurality of inner bonding plates 31 are locked to the outside of the concrete column 10, and the molten material in the fusion fitting structure 33 is melted to make the inner bonding plate 31 close to the concrete column 10, and the locking nails 34 are locked. 4 is nailed into the concrete column 10; the middle energy-resisting component 40 includes a C-type unloading frame 41 attached to the outer side of the inner bonding plate 31, and a closing plate 42 is embedded on both sides of the C-type unloading frame 41. The closing plate 42 is provided with a side unloading member 43. The adjacent C-type unloading frames 41 are connected by the side unloading members 43. The inner side of the C-type unloading frame 41 is provided with an inner unloading member 44. When the concrete column 10 or the steel beam 22 is vibrated, the adjacent C-type unloading frames 41 and the C-type unloading frames 41 unload themselves and the concrete column 10 and the steel beam 22; the outer end stabilizing component 50 includes two L-shaped connecting frames 51 fixedly connected to the two steel beams 22. The two L-shaped connecting frames 51 are connected together by connecting nails 52 to form an outer protection frame, and the outer protection frame is attached to the opening side of the C-type unloading frame 41.

[0050] In the present embodiment, the number of steel beams 22 is four. According to the spacing of specific applications, the number can be two or another number without affecting the arrangement of other structures.

[0051] The concrete column 10 in this embodiment is a square structure, but in fact some concrete columns are circular structures. The shapes of the inner end split fixing part 30, the middle energy-resistant component 40, and the outer end stabilizing component 50 can be changed according to the shape of the concrete column 10, and the original linear structure can be changed into an arc structure, which is more suitable for the concrete column.

[0052] In the process of matching the core connector 21 with the concrete column 10, bolt locking is often directly adopted to establish a rigid connection between the core connector 21 and the concrete column 10, thereby ensuring the stability of the entire connection node. In order to fill the gap between the two, some structures will also be filled with a resin layer, but this will result in the installation of the core connector 21 requiring the cooperation of multiple people, and it is difficult to accurately fix it to the pre-planned position. Secondly, when vibration repair occurs, if the entire surface of the core connector 21 is deformed and displaced, it needs to be replaced as a whole. Therefore, the present invention uses the inner end split fixing member 30 to set the inner bonding plate 31 in sections during the installation stage, so that the four inner bonding plates 31 are fixed on the concrete column 10. The outer side of the molten metal fitting structure 33 is initially tightened, and then the fusible material in the molten matching structure 33 is melted, so that the inner bonding plate 31 is further matched with the concrete column 10 by hot-melt connection, which not only provides a positioning basis for the subsequent rigid connection, but also fills the gap between the inner bonding plate 31 and the concrete column 10, and there is no need to fill the closed material separately. The molten material in the molten matching structure 33 is driven into the locking nail 34 before it solidifies, so that the locking nail 34 is accurately positioned. The entire installation process is a segmented and stable installation. Not only is the positioning accurate during installation, the installation is stable and seamless, even after subsequent vibration, only one side of the inner bonding plate 31 is damaged, and the use of other surfaces is not affected.

[0053] In the matching process of different inner bonding plates 31, in order to avoid affecting the setting of the middle energy-resistant component 40 and occupying excess space, and also to improve stability, the inner bonding plate 31 of this embodiment is respectively provided with a blind hole 311 and a matching hole 312, and the locking structure 32 is a locking bolt, which passes through the blind hole 311 and cooperates with the matching hole 312 of the adjacent inner bonding plate 31. By providing the blind hole 311 and the matching hole 312 at the position of the inner bonding plate 31, the locked locking bolt can be directly retracted into the blind hole 311, so that the surface of the square structure formed by the inner bonding plate 31 is smooth, which is stable and does not affect other structures.

[0054] The molten matching structure 33 needs to be activated after the initial matching of the inner bonding plate 31 in order to improve the matching effect between it and the concrete column 10. Therefore, the molten matching structure 33 of this embodiment includes an inner concave cavity opened on the inner side of the inner bonding plate 31, and a molten rubber plate 332 is embedded in the inner concave cavity. A plurality of docking holes 333 are opened on the side of the inner bonding plate 31 away from the molten rubber plate 332. The molten rubber plate 332 is heated through the docking holes 333. By opening the docking holes 333 and the inner concave cavity in the inner bonding plate 31, the external heating structure can extend into the inner concave cavity through the docking holes 333 to heat and melt the molten rubber plate 332. The melted molten rubber plate 332 can flow in the gap between the concrete column 10 and the inner bonding plate 31. After solidification, it forms an adhesive layer and a closed layer, thereby improving the matching effect between the concrete column 10 and the inner bonding plate 31 and preventing the occurrence of cavity phenomenon.

[0055] If it is only a rigid connection, the deformation of the entire node when it is subjected to vibration is more serious. Therefore, some designers set up energy-resistant components in the node. However, once the energy-resistant components are poured with concrete, the overall tensile effect is greatly affected. Therefore, the present invention sets a middle energy-resistant component 40, and sets the middle energy-resistant component 40 in the middle of the inner end split fixing component 30 and the outer end stabilizing component 50, and covers the upper and lower ends thereof, so as to avoid the influence of concrete pouring. After the inner end split fixing component 30 or the outer end stabilizing component 50 is deformed alone, the middle energy-resistant component 40 can also be unloaded through the side unloading component 43 and the internal unloading component 44, thereby alleviating the deformation phenomenon that may occur during earthquake and reducing the loss caused by building vibration.

[0056] In the case where the inner end split fixing member 30 or the outer end stabilizing member 50 is subjected to vibration, it is necessary to rely on the deformation or shaking of the middle energy-resistant member 40 itself to greatly alleviate the vibration. The energy resistance of the middle energy-resistant member 40 is mainly achieved through two parts. One part is to realize the interaction between different groups of C-type unloading frames 41 through the side unloading member 43. Specifically, the side unloading member 43 is a plurality of spring groups connecting two closing plates 42. The spring group includes a first spring 431 connecting the two closing plates 42, and a second spring 432 located at the lower end of the first spring 431 and connecting the two closing plates 42. The spring group is divided into The inner unloading member 44 is a plurality of energy-resistant springs arranged on the inner side of the C-type unloading frame 41. In the process that the C-type unloading frame 41 is subjected to the up and down action of the external force, in order to avoid the rigid bending of the closing plate 42 used to install the spring group, the top of the closing plate 42 is fixedly connected to the top of the inner side of the C-type unloading frame 41, and the bottom of the closing plate 42 is spaced apart from the bottom of the inner side of the C-type unloading frame 41, so that the closing plate 42 will not touch the bottom when it is slightly bent, thereby realizing the energy resistance of the left and right sides and the upper and lower sides, and avoiding the phenomenon that pure rigid contact directly causes structural deformation.

[0057] The steel beam 22 needs to be connected to the node, and for the stability of the steel beam 22, its installation end needs to be stable. Obviously, it cannot be installed on the outside of the middle energy-resistant component 40. Therefore, the present invention provides an outer end stabilizing component 50, which can not only provide a mounting surface for the steel beam 22, but also establish an external protective barrier in the middle energy-resistant component 40 to prevent small external fluctuations from directly affecting the middle energy-resistant component 40.

[0058] When setting the outer end stabilizing component 50, it also needs to be set in sections. If an integrated structure is used, the vibration force in any direction may cause the overall deformation of the outer end stabilizing component 50. Therefore, the L-shaped connecting frame 51 of this embodiment includes two L-shaped bonding plates 511, and the two top corners of the L-shaped bonding plates 511 are integrally connected to a corner seat 512, and the adjacent corner seats 512 are connected by connecting nails 52, thereby realizing a split setting. In fact, the two L-shaped bonding plates 511 can also be set as four, and can be specifically split and set in four directions.

[0059] In order to ensure that the fixed inner end split fixing part 30 forms a stable relationship with the outer end stabilizing component 50, and also to better cooperate with the middle energy-resistant component 40, a bottom receiving plate 60 and a top receiving plate are provided at the bottom of the inner bonding plate 31. The bottom receiving plate 60 and the top receiving plate (not shown in the figure) are respectively fixed to the bottom and the top of the L-shaped connecting frame 51. On the one hand, it is to better protect the internal structure when pouring concrete, and on the other hand, it is to enhance the stability of the outer end stabilizing component 50.

[0060] Another embodiment of the present invention further provides a construction method for a connection node between a concrete column and a steel beam, comprising the above-mentioned connection node between a concrete column and a steel beam, characterized in that it comprises the following steps:

[0061] S1: prefabricate the core connection member 21 and four steel beams 22 in the factory;

[0062] S2: Determine the installation position of the core connector 21 according to the position of the concrete column 10 and the preset position of the steel beam 22 and draw a line;

[0063] S3: First, the inner end split fixing member 30 is installed to the outer side of the concrete column 10 according to the position of the drawn line, and then the middle energy-resistant component 40 is installed on the periphery of the inner end split fixing member 30, and finally the outer end stabilizing component 50 is installed on the outer side of the middle energy-resistant component 40;

[0064] S4: pouring and curing concrete on the core connection member 21;

[0065] S5: Lock the steel beam 22 to the outside of the outer end stabilizing assembly 50 to complete the overall installation.

[0066] Furthermore, the installation of the inner end split fixing member 30 in step S3 specifically includes:

[0067] S21: according to the position of the marking line, the inner bonding plates 31 are bonded to the outer side of the concrete column 10 in pairs, so that the inner bonding plates 31 form a rectangular structure and are initially fixed to the outer side of the concrete column 10;

[0068] S22: The heating structure is brought into contact with the molten matching structure 33 to melt it, so that the inner bonding plate 31 is tightly bonded to the outer side of the concrete column 10;

[0069] S23: When the molten matching structure 33 has not yet solidified, the locking nails 34 are driven into the outer side of the concrete column 10 to form a rigid connection between the inner bonding plate 31 and the concrete column 10 .

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connection node between a concrete column and a steel beam, arranged on the outside of a concrete column (10), the outside of the concrete column (10) being connected with a node connection mechanism (20), the node connection mechanism (20) comprising a core connection member (21) and four steel beams (22), characterized in that: The core connecting member (21) comprises: The inner end split fixing member (30) comprises a plurality of inner bonding plates (31) arranged on the outside of the concrete column (10), the inner bonding plates (31) being connected to each other by a locking structure (32) to form a square structure, a melting fitting structure (33) being arranged on one side of the inner bonding plate (31) close to the concrete column (10), a plurality of locking nails (34) being arranged at both ends of the melting fitting structure (33), the plurality of inner bonding plates (31) being locked on the outside of the concrete column (10), the molten material in the melting fitting structure (33) being melted so that the inner bonding plates (31) are tightly attached to the concrete column (10), and the locking nails (34) are driven into the concrete column (10); The middle energy-resisting component (40) comprises a C-shaped force unloading frame (41) attached to the outside of the inner bonding plate (31), a closing plate (42) is embedded on both sides of the C-shaped force unloading frame (41), and a side unloading member (43) is arranged on the closing plate (42). Adjacent C-shaped force unloading frames (41) are connected via the side unloading members (43), and an inner unloading member (44) is arranged on the inner side of the C-shaped force unloading frame (41). When the concrete column (10) or the steel beam (22) is vibrated, the adjacent C-shaped force unloading frames (41) and the C-shaped force unloading frames (41) unload the load on themselves and the concrete column (10) or the steel beam (22); The outer end stabilizing assembly (50) comprises two L-shaped connecting frames (51) fixedly connected to the two steel beams (22); the two L-shaped connecting frames (51) are connected together by connecting nails (52) to form an outer protective frame; the outer protective frame is attached to one side of the opening of the C-shaped load unloading frame (41).

2. The connection node between a concrete column and a steel beam according to claim 1, characterized in that: The inner bonding plate (31) is respectively provided with a blind hole (311) and a matching hole (312); the locking structure (32) is a locking bolt, and the locking bolt passes through the blind hole (311) and matches with the matching hole (312) of the adjacent inner bonding plate (31).

3. The connection node between a concrete column and a steel beam according to claim 1, characterized in that: The molten fitting structure (33) comprises an inner concave cavity formed on the inner side of the inner bonding plate (31), a molten rubber plate (332) being embedded in the inner concave cavity, and a plurality of docking holes (333) are formed on a side of the inner bonding plate (31) away from the molten rubber plate (332), through which the molten rubber plate (332) is heated.

4. The connection node between a concrete column and a steel beam according to claim 1, characterized in that: The side unloading member (43) is a plurality of spring groups connecting the two closing plates (42), wherein the spring group comprises a first spring (431) connecting the two closing plates (42), and a second spring (432) located at the lower end of the first spring (431) and connecting the two closing plates (42).

5. The connection node between a concrete column and a steel beam according to claim 4, characterized in that: The top of the closing plate (42) is fixedly connected to the top of the inner side of the C-shaped force unloading frame (41), and the bottom of the closing plate (42) is spaced apart from the bottom of the inner side of the C-shaped force unloading frame (41).

6. The connection node between a concrete column and a steel beam according to claim 4, characterized in that: The internal unloading member (44) is a plurality of energy-resistant springs arranged inside the C-shaped unloading frame (41).

7. The connection node between a concrete column and a steel beam according to claim 1, characterized in that: The L-shaped connecting frame (51) comprises two L-shaped laminating plates (511), two top corners of the L-shaped laminating plates (511) are integrally connected to a corner seat (512), and adjacent corner seats (512) are connected via connecting nails (52).

8. The connection node between a concrete column and a steel beam according to claim 1, characterized in that: A bottom receiving plate (60) and a top receiving plate are provided at the bottom of the inner bonding plate (31), and the bottom receiving plate (60) and the top receiving plate are respectively fixedly connected to the bottom and the top of the L-shaped connecting frame (51).

9. A construction method for a connection node between a concrete column and a steel beam, comprising a connection node between a concrete column and a steel beam as claimed in any one of claims 1 to 8, characterized in that: The following steps are included: S1: prefabricate the core connector (21) and four steel beams (22) in the factory; S2: Determine the installation position of the core connection member (21) and draw a line according to the position of the concrete column (10) and the preset position of the steel beam (22); S3: firstly install the inner end split fixing member (30) to the outer side of the concrete column (10) according to the position of the drawn line, then install the middle energy-resistant component (40) on the periphery of the inner end split fixing member (30), and finally install the outer end stabilizing component (50) on the outer side of the middle energy-resistant component (40); S4: pouring and curing concrete into the core connection member (21); S5: Lock the steel beam (22) to the outside of the outer end stabilizing component (50) to complete the overall installation.

10. The construction method of the connection node between a concrete column and a steel beam according to claim 9, characterized in that: The installation of the inner end split fixing member (30) in step S3 specifically includes: S21: according to the positions of the marking lines, the inner bonding plates (31) are bonded to the outer sides of the concrete column (10) in pairs, so that the inner bonding plates (31) form a rectangular structure and are initially fixed to the outer sides of the concrete column (10); S22: placing the heating structure against the molten matching structure (33) and causing it to melt, so that the inner bonding plate (31) is tightly bonded to the outer side of the concrete column (10); S23: When the molten matching structure (33) has not yet solidified, the locking nail (34) is driven into the outer side of the concrete column (10), so that the inner bonding plate (31) and the concrete column (10) are rigidly connected.

Images