Self-resetting beam-column connection module, beam-column node and energy dissipation method

Abstract

The present invention provides a self-resetting beam-column connection module, a beam-column node and an energy dissipation method. The connection module includes: a plate connection assembly, a groove assembly, a connection assembly and an energy dissipation assembly; the plate connection assembly includes a transverse connecting plate and multiple longitudinal connecting plates; the groove assembly includes two groups of matching grooves, and the matching grooves include an upper groove and a lower groove; the connection assembly includes a first, a second and a third connecting member, which can respectively connect the upper and lower grooves to the transverse connecting plate, the longitudinal connecting plate and the beam; the energy dissipation assembly includes two energy dissipation components respectively located above the upper groove and below the lower groove, and their two ends are respectively connected to the column and the beam. The node includes an upper column group, a lower column group, a plug-in assembly, an upper beam group, a lower beam group and multiple modules mentioned above. The method includes using the above modules or nodes to dissipate energy. The present invention can control post-earthquake damage, has good shock absorption capacity, and all components can be prefabricated in the factory, with simple and convenient installation and low preparation cost.

Description

Technical Field

[0001] The present invention relates to the field of structural engineering earthquake resistance, and in particular to a self-resetting beam-column connection module, a beam-column node and an energy dissipation method. Background Art

[0002] Modular steel structures feature a high degree of factory production, short construction cycles, reliable quality, minimal on-site construction workload, and environmental friendliness. This structural system divides the building into several steel structural modules, which are fabricated in the factory, integrating equipment installation, piping, and interior decoration. The factory-fabricated modular units are then transported to the site and hoisted into place, where they are then connected and seamed, piping is routed between the units, and exterior decoration is applied.

[0003] Traditional connections between modular units improve on-site construction convenience, but require reserved construction space and reduced column and beam cross-sections. However, this also reduces the overall structural stiffness and performance, making components susceptible to local buckling. Furthermore, existing modular joints have poor seismic performance, relying solely on the plastic deformation of their own beams and columns to dissipate seismic energy. This results in significant component deformation after an earthquake, leading to significant residual deformation between modules. This makes post-earthquake repair difficult and costly. Summary of the Invention

[0004] The present invention aims to address at least one of the above-mentioned deficiencies in the prior art. For example, one of the objectives of the present invention is to provide a beam-column joint with good energy dissipation and self-reset capabilities; another objective is to facilitate disassembly, replacement, and repair of the beam-column joint.

[0005] In order to achieve the above objectives, the present invention provides a self-resetting beam-column connection module.

[0006] The module may include: a plate connection component, a trough component, a connection component and an energy dissipation component, wherein the plate connection component includes: a transverse connecting plate, and at least one longitudinal connecting plate fixed on both sides of the transverse connecting plate; the trough component includes two groups of matching trough members installed in parallel on the transverse connecting plate, the matching trough members include an upper trough member and a lower trough member, the notch of the upper trough member faces downward and is located above the transverse connecting plate, and the notch of the lower trough member faces upward and is located below the transverse connecting plate; the connection component includes: a plurality of first connecting members, a plurality of second connecting members and a plurality of third connecting members, the first connecting member can connect the upper and lower trough members with the transverse connecting plate, the second connecting member can connect the upper and lower trough members with the adjacent longitudinal connecting plate, and the third connecting member can connect the upper and lower trough members with the beam; the energy dissipation component includes: at least one of a first energy dissipation component and a second energy dissipation component, wherein the first and second energy dissipation components are respectively located above the upper trough member and below the lower trough member, and the two ends of the two are respectively connected to the column and the beam.

[0007] Optionally, two groups of through holes are formed on the transverse connecting plate; and a plurality of through holes are formed on the longitudinal connecting plate.

[0008] Optionally, the angle between the transverse connecting plate and the longitudinal connecting plate is 90 degrees.

[0009] Optionally, the upper and lower groove members are fixedly connected to the lower end of the upper corner column and the upper end of the lower corner column respectively, and both include: a narrow transverse plate, a connecting longitudinal plate, a wide transverse plate and an extended longitudinal plate connected in sequence, and a cover plate, wherein the narrow transverse plate and the wide transverse plate face each other, and a plurality of through holes are opened on the narrow transverse plate; the narrow transverse plates of the upper and lower groove members are in contact with the upper and lower surfaces of the transverse connecting plates respectively, and the through holes on the two narrow transverse plates are connected to a group of through holes in the transverse connecting plates; the connecting longitudinal plates and the extended longitudinal plates face each other; the upper groove The extended longitudinal plate of one of the parts and the lower trough part includes a plurality of first sub-plates in the shape of comb teeth, and the extended longitudinal plate of the other part includes a second sub-plate with through holes, and the height of the two sub-plates is greater than the height of the connecting longitudinal plate; the first sub-plate and the second sub-plate are located on the outside of the corresponding longitudinal connecting plate, and the through holes on the second sub-plate and the through holes on the longitudinal connecting plate are directly opposite to the tooth plate gap on the first sub-plate; the cover plate is arranged longitudinally and is connected to the narrow transverse plate, the connecting longitudinal plate, and the wide transverse plate at one end away from the upper corner column, and the cover plate is provided with a plurality of through holes.

[0010] Optionally, the first connecting member can pass through the through holes on the two narrow transverse plates and a group of through holes on the transverse connecting plate to connect the upper and lower trough members to the transverse connecting plate.

[0011] Optionally, the second connecting member can pass through the through hole on the second sub-plate, the gap between the tooth plates on the first sub-plate and the through hole on the longitudinal connecting plate to connect the upper and lower trough members to adjacent longitudinal connecting plates.

[0012] Optionally, the third connecting member can pass through the through hole on the cover plate to connect the upper and lower trough members to the beam.

[0013] Optionally, both the first and second connecting members may include high-strength bolts.

[0014] Optionally, the third connector may include a self-resetting connector. Furthermore, the self-resetting connector may include an SMA disc spring bolt. Furthermore, the SMA spring bolt may include: a bolt head, a bolt shank, two washers and two SMA springs sleeved on the bolt shank, and a nut adapted to the bolt shank, wherein the two SMA springs are located between the two washers and a certain distance between the two SMA springs.

[0015] Optionally, at least one of the first and second energy-absorbing components may be a friction damper, which may include an upper damping cover plate, a lower damping cover plate, a fourth connecting member, and a fixed plate and a sliding plate located between the upper and lower damping cover plates; wherein the fourth connecting member is multiple in number, a portion of which can fix the fixed plate to the upper and lower damping cover plates; another portion of which can pass through the slideway on the sliding plate to connect the sliding plate to the upper and lower damping cover plates, and the sliding plate can slide between the upper and lower damping cover plates under the action of external force. Furthermore, the lower surface of the upper damping cover plate and the upper surface of the lower damping cover plate are both connected with wear-resistant materials. Furthermore, the friction damper is connected to the column and the beam via ear plates. Furthermore, the fourth connecting member may include high-strength bolts.

[0016] Another aspect of the present invention provides a modular self-centering beam-column joint.

[0017] The node may include: an upper column group, a lower column group, a plug-in assembly, an upper beam group, a lower beam group, and a plurality of self-resetting beam-column connection modules as described above, wherein the upper column group includes a plurality of upper corner columns, which are connected to the first energy-absorbing component; the lower column group includes a plurality of lower corner columns, which are connected to the second energy-absorbing component; the plug-in assembly can be plugged into the upper corner columns and the lower corner columns respectively; the number of upper beam groups is the same as the number of modules and corresponds one to one, the upper beam group includes two upper module beams, and the two upper module beams are connected one to one with the two upper trough members through a portion of the third connecting members; the number of lower beam groups is the same as the number of modules and corresponds one to one, the lower beam group includes two lower module beams, and the two lower module beams are connected one to one with the two lower trough members through another portion of the third connecting members.

[0018] Optionally, the plug-in assembly may include an intermediate plate, and upper and lower pins connected to the upper and lower surfaces of the intermediate plate, respectively, wherein the upper pins are the same in number as the upper corner posts and correspond one-to-one, and the upper pins are inserted into the lower ends of the corresponding upper corner posts; the lower pins are the same in number as the lower corner posts and correspond one-to-one, and the lower pins are inserted into the upper ends of the corresponding lower corner posts.

[0019] The present invention also provides a self-resetting energy consumption method.

[0020] The method includes: utilizing the self-resetting beam-column connection module as described above to dissipate energy, or utilizing the modular self-resetting beam-column node as described above to dissipate energy.

[0021] Compared with the prior art, the beneficial effects of the present invention may include:

[0022] (1) All components of the present invention can be prefabricated in a factory, which reduces labor costs, speeds up construction progress, and is simple and convenient to install. There is no need to weaken beams or columns to leave installation space, so that the overall rigidity of the structure is guaranteed;

[0023] (2) The present invention can control post-earthquake damage so that most of the plastic deformation occurs in a specific area, so that the deformation of the beams and columns of the structure is in the elastic stage, there is almost no residual deformation after small and medium earthquakes, and the damaged device can be quickly repaired after a large earthquake;

[0024] (3) The present invention uses friction dampers as energy-absorbing components. During small and medium earthquakes, the friction dampers can increase the lateral stiffness of the structure and reduce inter-story displacement. During large earthquakes, the hysteresis of the friction dampers can consume seismic energy, thereby protecting beam and column components and reducing post-earthquake damage.

[0025] (4) The present invention adopts SMA disc spring bolts as self-resetting components, and utilizes the variable stiffness characteristics of the disc spring and the characteristics of SMA to dissipate energy under small and medium earthquakes. At the same time, when a superimposed combination is adopted, due to the effect of surface friction resistance, the effect of absorbing impact and dissipating energy is significant, and it has good buffering and shock absorbing capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects and / or features of the present invention will become more apparent from the following description in conjunction with the accompanying drawings, in which:

[0027] Figure 1 A structural schematic diagram of the plate connection assembly of the present invention is shown.

[0028] Figure 2 A structural diagram of the upper trough.

[0029] Figure 3 A structural schematic diagram of the lower trough member is shown.

[0030] Figure 4 A structural schematic diagram of the energy-consuming component of the present invention is shown.

[0031] Figure 5 A structural schematic diagram of a self-resetting connector is shown.

[0032] Figure 6 A schematic diagram of modular building is shown.

[0033] Figure 7 An isometric view of a modular self-centering beam-column joint of the present invention is shown.

[0034] Figure 8 A front view of a modular self-centering beam-column joint according to the present invention is shown.

[0035] Figure 9A top view of a modular self-centering beam-column joint according to the present invention is shown.

[0036] Figure 10 A schematic diagram of the connection between the upper corner columns and the upper groove members is shown.

[0037] Figure 11 A schematic diagram of the connection between the lower corner column and the lower groove member is shown.

[0038] Figure 12 A schematic diagram of the upper module beam is shown.

[0039] Figure 13 A schematic diagram of the plug assembly is shown.

[0040] Figure 14 A schematic diagram of a beam pad is shown.

[0041] Figure 15 Shows the assembly diagram of the modular self-centering beam-column node.

[0042] Description of main reference numerals:

[0043] 11- transverse connecting plate, 12- longitudinal connecting plate;

[0044] 21-upper trough, 22-lower trough, 221-narrow transverse plate, 222-connecting longitudinal plate, 223-wide transverse plate, 224-extended longitudinal plate, 225-cover plate;

[0045] 3-energy dissipation component, 31-upper damping cover plate, 32-lower damping cover plate, 33-sliding plate, 34-fixing plate, 35-fourth connecting member, 36-connecting rod, 37-ear plate, 38-wear-resistant layer, 39-butterfly gasket;

[0046] 41-first connecting member, 42-second connecting member, 43-third connecting member, 431-bolt, 432-SMA spring;

[0047] 51-upper corner post, 52-lower corner post;

[0048] 61-upper module beam, 62-lower module beam;

[0049] 71- beam pad, 72- fifth connecting piece;

[0050] 81-middle plate, 82-upper latch, 83-lower latch. DETAILED DESCRIPTION

[0051] Hereinafter, the self-resetting beam-column connection module, the beam-column node and the energy dissipation method of the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0052] It should be noted that terms such as "first," "second," "third," "fourth," and "fifth" are used solely for ease of description and distinction and are not to be construed as indicating or implying relative importance. Terms such as "upper," "lower," "front," "back," "left," "right," "inner," and "outer" are used solely for ease of description and to establish relative orientations or positions, and are not to indicate or imply that the components referred to must have such a particular orientation or position.

[0053] To ensure the safety of modular buildings, it is necessary to improve their seismic resistance and post-earthquake repairability. To this end, the inventors have proposed a modular steel structure building module connection system that includes a self-resetting device and an energy dissipation device to enhance the seismic resistance and recoverability of modular buildings. Under the action of earthquake forces, the self-resetting device relaxes the connection constraints of the nodes, allowing the structure to undergo significant deformation and imparting a certain degree of self-recovery after an earthquake, thereby reducing residual deformation after the earthquake. The energy dissipation device concentrates its energy consumption, reducing damage to beam and column components and facilitating disassembly.

[0054] Exemplary embodiment 1

[0055] This exemplary embodiment provides a self-resetting beam-column connection module.

[0056] The self-resetting beam-column connection module may include: a plate connection component, a groove component, a connection component, and an energy dissipation component. Each component is described below with reference to the accompanying drawings.

[0057] 1. Board-mounted components

[0058] Figure 1 A schematic structural diagram of the plate connection assembly of the present invention is shown below. Figure 1 Provide a description.

[0059] The plate connection assembly may include: one transverse connecting plate 11 and a plurality of longitudinal connecting plates 12 .

[0060] There are multiple longitudinal connecting plates 12, which can be fixedly connected to both sides of the transverse connecting plate 11, and the connection method may include welding. The number of longitudinal connecting plates 12 can be determined according to actual conditions, for example Figure 1 Four longitudinal connecting plates 12 are shown.

[0061] In this embodiment, the side surfaces of the transverse connecting plates 11 may be connected to the middle portion of the longitudinal connecting plates 12 .

[0062] In this embodiment, the transverse connecting plate 11 is provided with two groups of through holes for connection, each group may have 2 to 8 holes, for example Figure 1 There are two rows shown with a total of 8 through holes.

[0063] In this embodiment, the longitudinal connecting plate 12 is provided with a plurality of through holes for connection, the number of which may be 1 to 12, for example Figure 1 8 shown.

[0064] 2. Slot type components

[0065] Figure 2 A structural schematic diagram of the upper trough member is shown. Figure 3 A schematic diagram of the structure of the lower trough is shown below. Figure 2 and Figure 3 Provide a description.

[0066] The trough assembly can include 2 sets of parallel installation Figure 1 The matching grooves on the transverse connecting plate 11 are shown. Each set of matching grooves may include an upper groove 21 and a lower groove 22, the notch of the upper groove 21 facing downward and located at Figure 1 The lower groove member 22 is positioned above the transverse connecting plate 11 as shown. Figure 1 The upper channel member 21 can be inserted into the lower channel member 22 , with the transverse connecting plate 11 located between the upper channel member 21 and the lower channel member 22 .

[0067] The upper trough member 21 and the lower trough member 22 are both trough-shaped structures and include: narrow transverse plates, connecting longitudinal plates, wide transverse plates, extended longitudinal plates and cover plates. Among them, the narrow transverse plates, connecting longitudinal plates, wide transverse plates and extended longitudinal plates are connected in sequence. Figure 3 As shown, the narrow transverse plate 221, the connecting longitudinal plate 222, the wide transverse plate 223, and the extended longitudinal plate 224 of the lower trough member 22 are connected in sequence, and the cover plate 225 is connected to one end of the narrow transverse plate 221, the connecting longitudinal plate 222, the wide transverse plate 223, and the extended longitudinal plate 224.

[0068] In this embodiment, the narrow horizontal plate and the wide horizontal plate face each other, and a plurality of through holes are provided on the narrow horizontal plate. Figure 1 In the case of the transverse connecting plate 11 shown, the two narrow transverse plates are in contact with the upper and lower surfaces of the transverse connecting plate 11 respectively, and the through holes on the two narrow transverse plates are connected to a group of through holes of the transverse connecting plate 11 for connection.

[0069] In this embodiment, the connecting longitudinal plates and the extending longitudinal plates face each other.

[0070] The extended longitudinal plate 224 of one of the upper trough member 21 and the lower trough member 22 includes a plurality of first sub-plates in the shape of comb teeth, and the extended longitudinal plate of the other includes a second sub-plate with through holes. The height of the two sub-plates is greater than the height of the connecting longitudinal plate. Figure 2 and Figure 3As shown, the extended longitudinal plate of the upper trough member 21 includes two first sub-plates shaped like comb teeth, while the extended longitudinal plate 224 of the lower trough member 22 includes two second sub-plates with through holes. The number of first sub-plates and the number of teeth can be determined based on the actual application. The number of second sub-plates, the number of holes, and the hole distribution can also be determined based on the actual application.

[0071] The first sub-board and the second sub-board are located in Figure 1 As shown, on the outer side of the longitudinal connecting plate 12, the through holes on the second sub-plate and the through holes on the longitudinal connecting plate 12 are aligned with the tooth plate gaps on the first sub-plate for connection.

[0072] The cover plate is disposed longitudinally and connected to the ends of the narrow transverse plates, connecting longitudinal plates, and wide transverse plates facing away from the upper corner posts. The cover plate is provided with a plurality of through holes for connection. Of course, as an option of the present invention, a cover plate may also be connected to the other ends of the narrow transverse plates, connecting longitudinal plates, and wide transverse plates facing away from the upper corner posts.

[0073] In this embodiment, the narrow transverse plate is parallel to the wide transverse plate, the connecting longitudinal plate is parallel to the extending longitudinal plate, and the narrow transverse plate is vertically connected to the connecting longitudinal plate.

[0074] 3. Energy-consuming components

[0075] Figure 4 A schematic diagram of the structure of the energy consumption component of the present invention is shown below. Figure 4 To describe the energy consuming components in this exemplary embodiment.

[0076] The energy consuming component may include at least one Figure 7 The energy absorbing components 3 shown are, for example, two in number. The two energy absorbing components 3 can be located above the upper trough component 21 and below the lower trough component 22 described above, respectively.

[0077] The energy dissipation component 3 may be a friction damper and may include an upper damping cover plate 31, a lower damping cover plate 32, a sliding plate 33 and a fixed plate 34 located between the upper and lower damping cover plates, and a fourth connecting member 35. Both ends of the energy dissipation component 3 may be connected to a column or a beam, respectively.

[0078] In this embodiment, the sliding plate 33 is provided with several slideways, such as oblong holes. The fourth connecting member 35 can sequentially pass through the hole on one side of the upper damping cover plate 31, the slideway on the sliding plate 33, and the hole on one side of the lower damping cover plate 32 to connect the three. Under the action of an external force, the sliding plate 33 can slide between the upper and lower damping cover plates.

[0079] In this embodiment, the fixing plate 34 is fixedly connected to the upper and lower damping cover plates. For example, the fourth connecting member 35 is sequentially passed through the hole on the other side of the upper damping cover plate 31, the hole on the fixing plate 34, and the hole on the other side of the lower damping cover plate 32 to securely connect the three.

[0080] In this embodiment, the fixed plate 34 can be directly connected to the column or beam, and the sliding plate 33 can be directly connected to the beam or column.

[0081] Of course, the present invention is not limited to the above-mentioned connection method. The sliding plate 33 and the fixed plate 34 can be connected to the column or beam through ear plates. For example, the sliding plate 33 and the fixed plate 34 have a pin hole at one end facing outward, and the energy-absorbing component can also include two connecting rods 36 and four first ear plates 37. Among them, one connecting rod 36 can be inserted into the pin hole on the sliding plate 33, and its two ends are respectively fixedly connected to one ear plate 37. Similarly, another connecting rod 36 can be inserted into the pin hole on the fixed plate 34, and its two ends are respectively fixedly connected to one ear plate 37. Among them, the ear plate 37 can be welded to the column or beam in advance, for example, welded in advance at the factory. The connecting rod 36 can be a pin.

[0082] In this embodiment, the lower surface of the upper damping cover plate 31 and the upper surface of the lower damping cover plate 32 may be connected with a wear-resistant layer 38 , and the wear-resistant layer may be brass.

[0083] In this embodiment, the fourth connecting member 35 may include a high-strength bolt, and a disc-shaped washer 39 is attached to the bolt to ensure that the energy dissipation component has a stable energy dissipation capacity.

[0084] Energy dissipation component 3 concentrates earthquake energy dissipation within itself. Its energy dissipation capacity can be adjusted by varying the preload of the fourth connector 35 (e.g., high-strength bolts) and the wear-resistant layer 38 (e.g., brass), providing significant flexibility. Adding a disc-shaped washer 39 to the fourth connector 35 ensures stable energy dissipation of the friction damper. The energy dissipation component 3 is positioned so as to not occupy additional structural space, offering a simple connection method. Its removal and replacement can be performed without affecting the main structure.

[0085] 4. Connecting Components

[0086] Connectivity components may include: Figure 8 1 and 2. There are shown a plurality of first connecting members 41, a plurality of second connecting members 42 and a plurality of third connecting members 43.

[0087] In this embodiment, the first connecting member 41 can connect the upper and lower trough members to the transverse connecting plate. The first connecting member 41 can pass through the through holes on the two narrow transverse plates and a group of through holes on the transverse connecting plate to achieve connection.

[0088] In this embodiment, the second connecting member 42 can connect the upper and lower trough members to the longitudinal connecting plate. The second connecting member 42 can pass through the through hole on the second sub-plate, the gap between the tooth plates on the first sub-plate and the through hole on the longitudinal connecting plate to achieve connection.

[0089] In this embodiment, the third connecting member 43 can connect the upper and lower trough members to the beam.

[0090] The third connecting member 43 may include a self-resetting connecting member, such as an SMA disc spring bolt. Figure 5 As shown, the SMA spring bolt may include: a bolt 431 and a plurality of SMA springs 432 disposed on the bolt rod.

[0091] SMA disc spring bolts have a certain energy dissipation capacity under earthquake action. The energy dissipation of the SMA disc spring bolts can be adjusted by changing the size of the SMA disc spring, thereby adjusting the stiffness of the node. At the same time, the structure has recovery ability. By adjusting the preload of the high-strength bolts, the initial reset force of the SMA disc spring bolts can be controlled, effectively eliminating or reducing the residual deformation of the structure and facilitating the post-earthquake repair of the structure.

[0092] Exemplary embodiment 2

[0093] Another aspect of the present invention provides a modular self-centering beam-column joint.

[0094] The node may include: an upper column group, a lower column group, a plug-in assembly, an upper beam group, a lower beam group, and a plurality of self-resetting beam-column connection modules as described in exemplary embodiment 1.

[0095] Upper column group includes Figure 7 As shown in FIG, a plurality of upper corner columns 51 are connected to an energy dissipation component 3 .

[0096] The lower column group includes Figure 7 The plurality of lower corner columns 52 shown in FIG. 5 are connected to another energy absorbing member 3 .

[0097] The plug-in components can be plugged into the upper corner posts 51 and the lower corner posts 52 respectively.

[0098] The number of upper beam groups is the same as the number of self-resetting beam-column connection modules and corresponds one to one. The upper beam group includes Figure 7 As shown in FIG, the two upper module beams 61 are connected one to one with the two upper trough members through the third connecting member 43 .

[0099] The number of lower beam groups is the same as the number of self-resetting beam-column connection modules and corresponds one to one. The lower beam group includes Figure 7 The two lower module beams 62 shown in the figure are connected one by one with the two lower channel members through the third connecting member 43.

[0100] In this embodiment, if Figure 13 As shown, the plug-in assembly may include a middle plate 81, and an upper latch 82 and a lower latch 83 connected to the upper and lower surfaces of the middle plate respectively.

[0101] The number of the upper plugs 82 is the same as that of the upper corner posts 51 and they correspond one to one. The upper plugs 82 are inserted into the lower ends of the corresponding upper corner posts 51 .

[0102] The number of the lower latches 83 is the same as that of the lower corner posts 52 and they correspond one to one. The lower latches 83 are inserted into the upper ends of the corresponding lower corner posts 52 .

[0103] Exemplary embodiment 3

[0104] This exemplary embodiment provides a modular self-centering beam-column joint, which may also be referred to as a two-stage energy-dissipating self-centering joint suitable for modular buildings.

[0105] Figure 6 A schematic diagram of modular building is shown. Figures 7 to 9 The isometric view, front view and top view of the modular self-centering beam-column node of the present invention are respectively shown. Figure 10 A schematic diagram of the connection between the upper corner columns and the upper groove members is shown. Figure 11 A schematic diagram of the connection between the lower corner column and the lower groove member is shown. Figure 12 A schematic diagram of the upper module beam is shown. Figure 13 A schematic diagram of the plug assembly is shown. Figure 14 A schematic diagram of a beam pad is shown. Figure 15 The following is a schematic diagram of the assembly of the modular self-resetting beam-column node. Figures 6 to 15 Let me explain further.

[0106] like Figure 6 As shown, the module units B can be connected through the inter-module node A, and the inter-module node A is the modular self-resetting beam-column node of the present invention.

[0107] like Figures 7-9 As shown, the upper corner post 51 is welded with an upper channel 21 and a lug 37 at one end of the upper energy dissipation member 3. The lower corner post 52 is welded with a lower channel 22 and a lug 37 at one end of the lower energy dissipation member 3. The upper module beam 61 is welded with a lug 37 at the other end of the upper energy dissipation member 3. The lower module beam 62 is welded with a lug 37 at the other end of the lower energy dissipation member 3. The energy dissipation member 3 is connected to the beam and column via connecting rods 36. A third connecting member 43 connects the beam. The energy dissipation member 3 can be a friction damper with a slotted bolt.

[0108] like Figure 10 As shown, the upper corner column 51 is formed into a whole by welding two upper channel members 21 on adjacent sides.

[0109] like Figure 11 As shown, the lower corner column 52 is formed into a whole by welding two lower channel members 22 on adjacent sides.

[0110] The upper module beam 61 and the lower module beam 62 can be formed by welding stiffening ribs on the I-beam. Figure 12 The structure shown.

[0111] like Figure 13 As shown, the plug assembly may include a middle plate 81, and an upper latch 82 and a lower latch 83 connected to the upper and lower surfaces of the middle plate, respectively. As an example of the present invention, the plug assembly may be formed by welding four steel plates on each side of a steel plate.

[0112] like Figure 8 As shown, a beam pad 71 is provided between the upper module beam 61 and the lower module beam 62. Figure 14 As shown, the beam pad 71 can be a steel plate with a connection hole. The upper module beam 61, the lower module beam 62 and the beam pad 71 can be connected by a fifth connecting member 72, which can be a high-strength bolt.

[0113] The third connecting member 43 may be an SMA disc spring bolt, which may include a set of SMA disc springs and high-strength bolts connected in series and parallel.

[0114] like Figure 15 As shown, the connection method of the upper module unit and the lower module unit includes: installing the plate connection assembly and the plug assembly on the lower module unit, wherein the lower plug pin 83 is inserted into the lower corner column 52. The beam pad 71 is placed, and the plate connection assembly and the lower groove member 22 of the lower module are connected with the second connecting member 42 ( Figure 7 (shown) pre-position the panel assembly and maintain sufficient clearance between the lower channel 22 to facilitate insertion of the upper channel 21 of the upper module. Insert the extended longitudinal plate of the upper channel 21 into the gap between the extended longitudinal plate of the lower channel 22 and the longitudinal connecting plate 12 of the connecting plate. Finally, install the upper module unit, insert the upper corner post 51 into the upper latch 82, tighten the second connector 42, and install and tighten the fifth connector 72 ( Figure 7 shown) and the first connecting member 41 ( Figure 7 shown).

[0115] The energy dissipation mechanism of the present invention may include: the first connector 41 and the second connector 42 can both be high-strength bolts that can transmit shear force; the energy-absorbing component 3 and the third connector 43 transmit bending moment. Under the action of medium and small earthquakes, the nodes and beam-column components are in an elastic state, only the third connector 43 (such as an SMA disc spring bolt) works, and the energy-absorbing component 3 (such as a long-hole bolt friction damper) is in an elastic stage. After the earthquake, the structure automatically resets. Under the action of a large earthquake, the energy-absorbing component 3 is activated and deformed. Most of the seismic energy generated by the structure is dissipated by the energy-absorbing component 3, and a small part of the energy is dissipated by prefabricated components such as beams and columns and the third connector 43. The structure has residual deformation due to the deformation of the energy-absorbing component 3, and the energy-absorbing component 3 can be repaired or replaced.

[0116] Although the present invention has been described above with reference to the exemplary embodiments and the accompanying drawings, it will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the spirit and scope of the claims.

Claims

1. A self-resetting beam-column connection module, characterized in that: The module includes a plate-connected component, a slot-type component, a connecting component and an energy-consuming component, wherein: The plate connection assembly includes: a transverse connecting plate, and at least one longitudinal connecting plate fixed on both sides of the transverse connecting plate; The groove assembly includes two sets of matching groove parts installed in parallel on the transverse connecting plate, and the matching groove parts include an upper groove part and a lower groove part. The groove opening of the upper groove part faces downward and is located above the transverse connecting plate, and the groove opening of the lower groove part faces upward and is located below the transverse connecting plate. The connection assembly includes: a plurality of first connection members, a plurality of second connection members, and a plurality of third connection members, wherein the first connection members are capable of connecting the upper and lower trough members to the transverse connection plate, the second connection members are capable of connecting the upper and lower trough members to the adjacent longitudinal connection plate, and the third connection members are capable of connecting the upper and lower trough members to the beam; The energy absorbing assembly includes: at least one of a first energy absorbing component and a second energy absorbing component, wherein the first energy absorbing component and the second energy absorbing component are respectively located above the upper trough component and below the lower trough component, and both ends of the first energy absorbing component and the second energy absorbing component are respectively connected to the column and the beam; The transverse connecting plate is provided with two groups of through holes; the longitudinal connecting plate is provided with a plurality of through holes; The upper and lower groove members are fixedly connected to the lower end of the upper corner column and the upper end of the lower corner column respectively, and both include: a narrow transverse plate, a connecting longitudinal plate, a wide transverse plate and an extended longitudinal plate connected in sequence, and a cover plate, wherein: The narrow transverse plate and the wide transverse plate face each other, and a plurality of through holes are formed on the narrow transverse plate; the narrow transverse plates of the upper and lower groove members are in contact with the upper and lower surfaces of the transverse connecting plate respectively, and the through holes on the two narrow transverse plates are connected to a group of through holes on the transverse connecting plate; The connecting longitudinal plates and the extended longitudinal plates face each other; the extended longitudinal plate of one of the upper and lower trough members includes a plurality of first sub-plates in the shape of comb teeth, and the extended longitudinal plate of the other includes a second sub-plate with through holes, and the height of the two sub-plates is greater than that of the connecting longitudinal plates; the first sub-plates and the second sub-plates are located outside the corresponding longitudinal connecting plates, and the through holes on the second sub-plates and the through holes on the longitudinal connecting plates are aligned with the gaps between the tooth plates on the first sub-plates; The cover plate is arranged longitudinally and connected with the narrow horizontal plate, the connecting longitudinal plate and one end of the wide horizontal plate away from the column. A plurality of through holes are opened on the cover plate.

2. The self-resetting beam-column connection module according to claim 1, characterized in that: The first connecting member can pass through the through holes on the two narrow transverse plates and a group of through holes on the transverse connecting plate to connect the upper and lower trough members to the transverse connecting plate; The second connecting member can pass through the through hole on the second sub-plate, the gap between the tooth plates on the first sub-plate and the through hole on the longitudinal connecting plate to connect the upper and lower trough members to the adjacent longitudinal connecting plates; The third connecting member can pass through the through hole on the cover plate to connect the upper and lower trough members to the beam; The first and second connecting members both include high-strength bolts, and the third connecting member includes a self-resetting connecting member.

3. The self-resetting beam-column connection module according to claim 1, characterized in that: At least one of the first and second energy-absorbing components is a friction damper, which includes an upper damping cover plate, a lower damping cover plate, a fourth connecting member, and a fixed plate and a sliding plate located between the upper and lower damping cover plates; wherein, There are multiple fourth connecting members, one part of which can fix the fixed plate with the upper and lower damping cover plates; the other part can pass through the slide track on the sliding plate to connect the sliding plate with the upper and lower damping cover plates, and the sliding plate can slide between the upper and lower damping cover plates under the action of external force.

4. The self-resetting beam-column connection module according to claim 3, characterized in that: The lower surface of the upper damping cover plate and the upper surface of the lower damping cover plate are both connected with a wear-resistant layer.

5. The self-resetting beam-column connection module according to claim 3, characterized in that: The friction damper is connected to the column and the beam via ear plates.

6. A modular self-resetting beam-column joint, characterized in that: The node comprises: an upper column group, a lower column group, a plug-in assembly, an upper beam group, a lower beam group, and a plurality of self-resetting beam-column connection modules according to any one of claims 1 to 5, wherein: The upper column group includes a plurality of upper corner columns, and the upper corner columns are connected to the first energy dissipation component; The lower column group includes a plurality of lower corner columns, and the lower corner columns are connected to the second energy dissipation component; The plug-in components can be plugged into the upper corner posts and the lower corner posts respectively; The number of upper beam groups is the same as the number of the modules and corresponds one to one. The upper beam group includes two upper module beams, and the two upper module beams are connected one to one with the two upper trough members through a portion of the third connecting member. The number of the lower beam groups is the same as the number of the modules and corresponds one to one. The lower beam group includes two lower module beams, and the two lower module beams are connected one to one with the two lower trough members through another part of the third connecting member.

7. The modular self-centering beam-column node according to claim 6, characterized in that: The plug assembly includes an intermediate plate, and an upper latch and a lower latch connected to the upper and lower surfaces of the intermediate plate, respectively, wherein: The upper latches are equal in number to the upper corner posts and correspond one to one, and are inserted into the lower ends of the corresponding upper corner posts; The number of the lower latches is the same as that of the lower corner posts and they correspond one to one. The lower latches are inserted into the upper ends of the corresponding lower corner posts.

8. A self-resetting energy dissipation method, characterized in that: The method comprises: utilizing the self-resetting beam-column connection module according to any one of claims 1 to 5 to dissipate energy, or utilizing the modular self-resetting beam-column node according to claim 6 or 7 to dissipate energy.

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