Friction damping energy dissipation prefabricated building wallboard connecting piece and prefabricated building wallboard

Abstract

The invention relates to a friction damping energy dissipation prefabricated building wallboard connecting piece and a prefabricated building wallboard, the friction damping energy dissipation prefabricated building wallboard connecting piece comprises a first connecting part and a second connecting part, the first connecting part is arranged on one side of the bottom of the wallboard and used for connecting a lower floor beam plate and the wallboard, and the second connecting part is arranged on one side of the top of the wallboard and used for connecting the wallboard and an upper floor beam plate; the first connecting part comprises a plurality of under-wall damping connecting pieces which are arranged at intervals, each under-wall damping connecting piece comprises a bearing plate and a cover plate, the cover plates and the bearing plate grooves are matched in an inserted connection mode, and the under-wall damping connecting pieces are configured to be in sliding friction between the bearing plates and the cover plates and generate friction damping when the wall plate and the lower floor beam plate are relatively close; the second connecting part is configured to generate friction damping when the upper floor beam plate and the wall plate are relatively close to each other and relatively away from each other, the friction damping direction of the first connecting part comprises the horizontal direction, and the friction damping direction of the second connecting part comprises the vertical direction and the horizontal direction.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of prefabricated buildings, and particularly relates to a frictional damping energy dissipation prefabricated building wall plate connecting piece and a prefabricated building wall plate. BACKGROUND

[0002] The connecting joint of a prefabricated building component is a core technology for developing prefabricated buildings, and structural components (including beams, plates, columns and shear walls) in buildings and building partition walls, enclosure walls and roof plates are all developing prefabricated components and connecting pieces suitable for assembly construction. At present, prefabricated wall plates are widely used in prefabricated buildings, such as light aerated concrete strip wall (ALC), which is connected to the main structure by simple anchor nails and steel sheets. The prefabricated wall plate filled in the prefabricated building frame is a non-structural component and does not bear the load of the main structure. The requirement for the connection between the prefabricated wall plate and the main structure is not to increase the stiffness of the main structure or to increase the stiffness of the main structure as little as possible, so as to reduce the increase value of the seismic action borne by the structure. The degree to which this goal can be achieved mainly depends on the connection structure between the prefabricated wall plate and the main structure. The design requires that the partition wall plate and the surrounding beam column and other structural components are connected flexibly and have sufficient connection strength, so that the partition wall does not tilt or collapse when subjected to forces outside the wall plane.

[0003] On the other hand, great efforts are made to develop and popularize vibration isolation and damping technology, and various technical standards have been introduced, such as the Building Vibration Isolation Design Standard GB / T 51408-2021, the Building Energy Dissipation Technology JGJ297-2013, the Building Energy Dissipation Damper JGJ2009 and the like. At present, the design idea of building damping is to increase dampers in buildings, such as friction pendulum dampers, BRB buckling-restrained bracing and the like. However, the increased dampers greatly increase the cost of prefabricated buildings. SUMMARY

[0004] The first aspect of the application provides a frictional damping energy dissipation prefabricated building wall plate connecting piece, which can play the role of a damping energy dissipation device while connecting the wall plate and the upper floor beam plate, thereby saving the cost of separately arranging dampers in the building structure.

[0005] The prefabricated building wallboard connecting piece provided by the first aspect of the application comprises a first connecting part and a second connecting part, the first connecting part is arranged on one side of the bottom of the wallboard and is used for connecting a lower floor beam plate and the wallboard, and the second connecting part is arranged on one side of the top of the wallboard and is used for connecting the wallboard and an upper floor beam plate; the first connecting part comprises a plurality of spaced-apart wall-damping connecting pieces, each wall-damping connecting piece comprises a supporting plate and a cover plate, the cover plate and the supporting plate are in a slot insertion fit, and the wall-damping connecting piece is configured to generate frictional damping between the supporting plate and the cover plate through sliding friction when the wallboard and the lower floor beam plate are relatively close to each other; the second connecting part is configured to generate frictional damping when the upper floor beam plate and the wallboard are relatively close to each other and relatively far away from each other, respectively, the direction in which the first connecting part generates frictional damping includes a horizontal direction, and the direction in which the second connecting part generates frictional damping includes a vertical direction and a horizontal direction.

[0006] In addition, the prefabricated building wallboard connecting piece provided by the application also has the following additional technical features: In an optional solution, the supporting plate comprises a left-limb vertical plate and a right-limb vertical plate which are arranged on the bottom plate in a spaced-apart manner, the left-limb vertical plate and the right-limb vertical plate have an insertion plate slot therebetween, the upper end of the left-limb vertical plate is provided with a left-limb upper plate, and the upper end of the right-limb vertical plate is provided with a right-limb upper plate; the cover plate comprises an upper plate and a vertical insertion plate, and the two sides of the upper plate are provided with vertical eaves; The supporting plate and the cover plate have a first connection state, in the first connection state, the vertical insertion plate is partially inserted into the insertion plate slot, the end portions of the left-limb upper plate and the right-limb upper plate are respectively clamped with the vertical eaves on the corresponding side, and the included angles between the left-limb vertical plate and the left-limb upper plate and between the right-limb vertical plate and the right-limb upper plate are obtuse angles.

[0007] In an optional solution, the supporting plate and the cover plate have a second connection state, when an external force causes the wallboard and the lower floor beam plate to be relatively close to each other, the supporting plate and the cover plate move towards each other, and the first connection state changes to the second connection state; In the second connection state, the upper plate is pressed downward so that the vertical eaves on the two sides of the upper plate respectively press the left-limb upper plate and the right-limb vertical plate, so that the left-limb vertical plate and the right-limb vertical plate respectively press the vertical insertion plate and generate frictional damping through the surface friction coefficients of the three, in the second connection state, the included angles between the left-limb vertical plate and the left-limb upper plate and between the right-limb vertical plate and the right-limb upper plate are right angles.

[0008] In an alternative, the second connecting part comprises a plurality of first connecting members and a plurality of second connecting members, the first connecting members and the second connecting members are arranged at intervals; the first connecting member comprises a first support slot and a first support member, the first support member is inserted into the first support slot, the first connecting member is configured to slide and rub between the first support slot and the first support member to generate frictional damping when the upper floor beam plate is relatively close to the wall plate; the second connecting member comprises a second support slot and a second support member, the second support member is inserted into the second support slot, the second connecting member is configured to slide and rub between the second support slot and the second support member to generate frictional damping when the upper floor beam plate is relatively far away from the wall plate.

[0009] In an alternative, the first support slot comprises a first side plate, a second side plate and a first insertion plate, the first side plate and the second side plate are arranged at intervals, and the first insertion plate is located between the first side plate and the second side plate; the first support member comprises a first vertical plate and a second vertical plate arranged at intervals, the first vertical plate and the second vertical plate have a first insertion slot therebetween, and the width of the first insertion slot is slightly greater than the thickness of the first insertion plate, and the lower ends of the first vertical plate and the second vertical plate are respectively provided with a first lower plate and a second lower plate; The first support slot and the first support member have a third connection state, in which the first insertion plate is partially inserted into the first insertion slot, the first lower plate abuts against the inner wall of the first side plate, the second lower plate abuts against the inner wall of the second side plate, and the included angles between the first vertical plate and the first lower plate and between the second vertical plate and the second lower plate are obtuse.

[0010] In an alternative, the inner walls of the first side plate and the second side plate are respectively provided with a first tooth surface, the first tooth surface comprises a plurality of teeth arranged in steps from one side of the first support member to the other side of the first support slot, and the upper ends of the first side plate and the second side plate are respectively provided with a first limiting baffle.

[0011] In an alternative, the first support slot and the first support member have a fourth connection state, in which the first support slot and the first support member move towards each other when an external force causes the upper floor beam plate to be relatively close to the wall plate, and the fourth connection state changes from the third connection state; In the fourth connection state, the first vertical plate and the second vertical plate are pressed down to generate a reaction force on the first lower plate and the second lower plate respectively by the first side plate and the second side plate, so that the first vertical plate and the second vertical plate press the first plug plate and generate frictional damping by the surface friction coefficient of the three, and the included angle between the first vertical plate and the first lower plate and the included angle between the second vertical plate and the second lower plate are a right angle or an acute angle in the fourth connection state.

[0012] In an optional scheme, the first support groove further comprises a first connecting plate located at one side of the bottom of the first plug plate, and first support reinforcing ribs are respectively arranged between the outer side walls of the first side plate and the second side plate and the first connecting plate, and the first support groove is connected with the wall plate through the first connecting plate; the first support member further comprises a second connecting plate located at one side of the top of the first vertical plate, and the first support member is connected with the upper floor beam plate through the second connecting plate.

[0013] In an optional scheme, the second support groove comprises a third side plate, a fourth side plate and a second plug plate, the third side plate and the fourth side plate are arranged at intervals, and the second plug plate is located between the third side plate and the fourth side plate; the second support member comprises a third vertical plate and a fourth vertical plate arranged at intervals, a second plug groove is arranged between the third vertical plate and the fourth vertical plate, and the width of the second plug groove is slightly greater than the thickness of the second plug plate; the lower ends of the third vertical plate and the fourth vertical plate are respectively provided with a third lower plate and a fourth lower plate; The second support groove and the second support member have a fifth connection state, in which the second plug plate is partially inserted into the second plug groove, the third lower plate abuts against the inner wall of the third side plate, the fourth lower plate abuts against the inner wall of the fourth side plate, and the included angle between the third vertical plate and the third lower plate and the included angle between the fourth vertical plate and the fourth lower plate are both acute angles.

[0014] In an optional scheme, the inner walls of the third side plate and the fourth side plate are respectively provided with a second tooth surface comprising a plurality of teeth arranged in steps from one side of the second support groove to the other side of the second support member, and the upper ends of the third side plate and the fourth side plate are respectively provided with a second limiting baffle.

[0015] In an optional scheme, the second support groove and the second support member have a sixth connection state, in which when an external force causes the upper floor beam plate to move away from the wall plate, the second support groove and the second support member move in opposite directions and change from the fifth connection state to the sixth connection state. In the sixth connection state, the third vertical plate and the fourth vertical plate move upward to generate reaction force on the third lower plate and the fourth lower plate respectively, so that the third vertical plate and the fourth vertical plate press the second insertion plate and generate frictional damping by the surface friction coefficient of the three, and the included angle between the third vertical plate and the third lower plate and the included angle between the fourth vertical plate and the fourth lower plate are a right angle or an obtuse angle in the sixth connection state.

[0016] In an alternative, the second support groove further comprises a third connecting plate located at one side of the bottom of the second insertion plate, and a second support reinforcing rib is arranged between the outer side wall of the third side plate and the third connecting plate and between the outer side wall of the fourth side plate and the third connecting plate respectively, and the second support groove is connected with the wall plate through the third connecting plate; the second support member further comprises a fourth connecting plate located at one side of the top of the third vertical plate, and the second support member is connected with the upper floor beam plate through the fourth connecting plate.

[0017] The beneficial effects of the present application are:

[0018] In the present application, the frictional damping energy dissipation prefabricated building wall plate connecting piece connects the lower floor beam plate and the wall plate through the first connecting part, and connects the wall plate and the upper floor beam plate through the second connecting part, and since the first connecting part can generate frictional damping when the lower floor beam plate and the wall plate are relatively close, and the second connecting part can generate frictional damping when the upper floor beam plate and the wall plate are relatively close and relatively far away, the first connecting part and the second connecting part can play the role of a damping energy dissipation device while connecting the wall plate and the upper floor beam plate and the lower floor beam plate, thereby saving the cost of separately arranging dampers in the building structure as a building energy dissipation device during an earthquake.

[0019] The second aspect of the present application provides a prefabricated building wall plate, comprising a wall plate, a lower floor beam plate, an upper floor beam plate and a connecting piece, the connecting piece is used to connect the wall plate and the lower floor beam plate, and the wall plate and the upper floor beam plate, and the connecting piece is the frictional damping energy dissipation prefabricated building wall plate connecting piece provided in the first aspect. Since the frictional damping energy dissipation prefabricated building wall plate connecting piece provided in the first aspect can play the role of a damping energy dissipation device, the cost of separately arranging dampers in the building structure is saved, and therefore, the building using the prefabricated building wall plate also has lower construction cost compared with the building separately arranging a damping energy dissipation device.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1A schematic diagram of the overall assembly structure of the prefabricated building wall panel connectors provided in this application; Figure 2 A schematic diagram of the wall-mounted damping connector provided in this application in the first connection state; Figure 3 for Figure 2 A schematic diagram of the planar structure of the wall-mounted damping connector in the first connection state; Figure 4 A schematic diagram of the wall-mounted damping connector provided in this application in the second connection state; Figure 5 A schematic diagram of the structure of the first connector provided in this application in the third connection state; Figure 6 for Figure 5 A schematic diagram of the planar structure of the first connector in the third connection state; Figure 7 A schematic diagram of the structure of the first connector provided in this application in the fourth connection state; Figure 8 A schematic diagram of the structure of the second connector provided in this application in the fifth connection state; Figure 9 for Figure 8 A schematic diagram of the planar structure of the second connector in the fifth connection state; Figure 10 A schematic diagram of the structure of the second connector provided in this application in the sixth connection state.

[0022] Reference numerals: First connecting part 100, Second connecting part 200, Wall-mounted damping connector 1, Support plate 11, Left limb vertical plate 111, Right limb vertical plate 112, Insert plate slot 113, Left limb upper plate 114, Right limb upper plate 115, Base plate 116, Cover plate 12, Upper plate 121, Vertical insert plate 122, Vertical eaves 123, First connector 2, First support groove 21, First side plate 211, Second side plate 212, First insert plate 213, First toothed surface 214, First limiting strip 215, First connecting plate 216, First support reinforcing rib 217, First support member 22, First vertical plate 221, Second vertical plate 222, First slot 223, First lower plate 224, Second lower plate 225, Second connecting plate 226, Second connector 3, Second support groove 31, Third side plate 311, Fourth side plate 312, Second insert plate 313, Second toothed surface 314, Second limiting stop bar 315, Third connecting plate 316, Second support reinforcing rib 317, Second support member 32, Third vertical plate 321, Fourth vertical plate 322, Second slot 323, Third lower plate 324, Fourth lower plate 325, Fourth connecting plate 326, Wall panel 4, Lower floor beam slab 5, Upper floor beam slab 6.

[0023] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application. DETAILED DESCRIPTION

[0024] For a better understanding of the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the drawings.

[0025] It should be clear that the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other technical solutions obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0026] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0027] It should be understood that the term "and / or" used herein is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0028] It should be noted that the "up", "down", "left", "right" and other directional words described in the embodiments of the present application are described from the angle shown in the drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when referring to an element connected to another element "on" or "under", it can not only be directly connected to another element "on" or "under", but also indirectly connected to another element "on" or "under" through an intermediate element.

[0029] As Figures 1-10As shown, the embodiment of the present application provides a frictional damping energy dissipation prefabricated building wallboard connecting piece, which comprises a first connecting part 100 and a second connecting part 200, the first connecting part 100 is arranged on one side of the bottom of the wallboard 4 and is used for connecting the lower floor beam slab 5 and the wallboard 4, and the second connecting part 200 is arranged on one side of the top of the wallboard 4 and is used for connecting the wallboard 4 and the upper floor beam slab 6; the first connecting part 100 comprises a plurality of wall under damping connecting pieces 1 arranged at intervals, the wall under damping connecting piece 1 comprises a supporting plate 11 and a cover plate 12, the cover plate 12 and the supporting plate 11 are slot-inserted and matched, and the wall under damping connecting piece 1 is configured to slide and rub between the supporting plate 11 and the cover plate 12 and generate frictional damping when the wallboard 4 is relatively close to the lower floor beam slab 5; the second connecting part 200 is configured to generate frictional damping when the upper floor beam slab 6 is relatively close to and relatively far away from the wallboard 4, respectively, the direction in which the first connecting part 100 generates frictional damping comprises a horizontal direction, and the direction in which the second connecting part 200 generates frictional damping comprises a vertical direction and a horizontal direction.

[0030] In the embodiment, the frictional damping energy dissipation prefabricated building wallboard connecting piece connects the lower floor beam slab 5 and the wallboard 4 through the first connecting part 100 and connects the wallboard 4 and the upper floor beam slab 6 through the second connecting part 200, since the first connecting part 100 can generate frictional damping between the lower floor beam slab 5 and the wallboard 4 and the second connecting part 200 can generate frictional damping when the upper floor beam slab 6 is relatively close to and relatively far away from the wallboard 4, respectively, the first connecting part 100 and the second connecting part 200 can play the role of a damping energy dissipation device while connecting the wallboard 4 and the upper floor beam slab 6 and the lower floor beam slab 5, thereby saving the cost of separately arranging dampers in the building structure as a building energy dissipation device during an earthquake.

[0031] As shown in the specific embodiment, Figures 2-4 the supporting plate 11 comprises a left limb vertical plate 111 and a right limb vertical plate 112 arranged at intervals on the bottom plate 116, the left limb vertical plate 111 and the right limb vertical plate 112 have an insert plate slot 113 therebetween, the upper end of the left limb vertical plate 111 is provided with a left limb upper plate 114, and the upper end of the right limb vertical plate 112 is provided with a right limb upper plate 115; the cover plate 12 comprises an upper plate 121 and a vertical insert plate 122, both sides of the upper plate 121 are provided with a vertical eave 123; the supporting plate 11 and the cover plate 12 have a first connection state, in the first connection state, the vertical insert plate 122 is partially inserted into the insert plate slot 113, the ends of the left limb upper plate 114 and the right limb upper plate 115 are respectively clamped with the corresponding side vertical eave 123, and the included angles between the left limb vertical plate 111 and the left limb upper plate 114 and between the right limb vertical plate 112 and the right limb upper plate 115 are obtuse angles.

[0032] As shown in the specific embodiment, Figures 2-4As shown, in a specific embodiment, the second connection state is provided between the support plate 11 and the cover plate 12, when the wall plate 4 is relatively close to the lower floor beam plate 5 due to external force, the support plate 11 and the cover plate 12 move towards each other, and change from the first connection state to the second connection state; in the second connection state, the upper plate 121 is pressed downward, so that the vertical eaves 123 on both sides of the upper plate 121 respectively press the left limb upper plate 114 and the right limb vertical plate 112, so that the left limb vertical plate 111 and the right limb vertical plate 112 respectively press the vertical insertion plate 122 and generate frictional damping by the surface friction coefficient of the three, in the second connection state, the included angles between the left limb vertical plate 111 and the left limb upper plate 114, and the right limb vertical plate 112 and the right limb upper plate 115 are both right angles.

[0033] As shown, Figures 2-3 In the initial state (first connection state), the included angles of the left limb upper plate 114 and the left limb vertical plate 111, and the right limb upper plate 115 and the right limb vertical plate 112 are both greater than 90°, the thickness of the vertical insertion plate 122 is slightly smaller than the width of the insertion plate slot 113, the vertical eaves 123 have a body shape of thick upper and thin lower, and the distances between the nearest points on the upper parts of the two vertical eaves 123 and the edges of the left limb upper plate 114 and the right limb upper plate 115 are adapted.

[0034] During installation, the cover plate 12 is fixed to the lower end of the wall plate 4, the support plate 11 is fixed and connected to the concrete beam plate of the floor by bolts, then the vertical insertion plate 122 of the cover plate 12 is inserted into the insertion plate slot 113 of the support plate 11, under the action of the gravity of the partition wall plate 4, the upper plate 121 and the edge part of the vertical eaves 123 of the cover plate 12 press the left limb upper plate 114 and the right limb upper plate 115 of the support plate 11, so that the left limb upper plate 114 and the right limb upper plate 115 gradually become flat, and the upper edges of the left limb vertical plate 111 and the right limb vertical plate 112 gradually approach the vertical insertion plate 122, because the width of the insertion plate slot 113 is greater than the thickness of the vertical insertion plate 122, the difference between the two is set to be that when the left limb upper plate 114 and the right limb upper plate 115 are horizontal, the upper edges of the left limb vertical plate 111 and the right limb vertical plate 112 are just pressed tightly against the vertical insertion plate 122, and at this time, the upper plate 121 also just falls on the left limb vertical plate 111 and the right limb vertical plate 112, thereby preventing the downward movement of the cover plate 12, because the connecting piece is a metal piece, the surface has a certain friction coefficient, so the pressing force of the left limb upper plate 114 and the right limb upper plate 115 on the vertical insertion plate 122 tends to be constant, when the earthquake acts, the wall plate 4 generates a horizontal frictional force tending to be constant with the main body structure, forming the frictional damping at the lower connecting piece.

[0035] Specifically, the working principle of the wall under damping connector 1 provided by the application is that the cover plate 12 moves downward under the gravity of the retaining wall, so that the cover plate 12 presses the left limb upper plate 114 and the right limb upper plate 115 downward, so that they tend to be parallel to the horizontal plane. Since the outer sides of the left limb upper plate 114 and the right limb upper plate 115 are constrained by the vertical eaves 123, the left limb upper plate 114 and the right limb upper plate 115 will extrude the vertical insertion plate 122 to the inner side, and the extrusion force between the steel plates will generate friction. Therefore, when the building is subjected to horizontal displacement under the action of earthquake and wind load, the distance between the upper and lower floor beams is reduced, so that the prefabricated partition wall plate 4 connected with the upper and lower beams is in a compressed state. The sliding friction generated between the vertical insertion plate 122 of the wall under damping connector 1 at the lower end of the wall and the left limb vertical plate 111 and the right limb vertical plate 112, and the sliding friction generated between the upper plate 121 and the left limb upper plate 114 and the right limb upper plate 115, provide friction damping (i.e., the second connection state) for the building.

[0036] As shown in Figures 5-10 In a specific embodiment, the second connection part 200 includes a plurality of first connection pieces 2 and a plurality of second connection pieces 3, and the first connection pieces 2 and the second connection pieces 3 are arranged at intervals. The first connection piece 2 includes a first support groove 21 and a first support piece 22, and the first support piece 22 is inserted and matched with the first support groove 21. The first connection piece 2 is configured to generate friction damping between the first support groove 21 and the first support piece 22 by sliding friction when the upper floor beam plate 6 and the wall plate 4 are relatively close. The second connection piece 3 includes a second support groove 31 and a second support piece 32, and the second support piece 32 is inserted and matched with the second support groove 31. The second connection piece 3 is configured to generate friction damping between the second support groove 31 and the second support piece 32 by sliding friction when the upper floor beam plate 6 and the wall plate 4 are relatively far apart.

[0037] In the embodiment, the connection pieces arranged at the top of the wall plate 4 are divided into A type and B type, i.e., the first connection piece 2 and the second connection piece 3. The first connection piece 2 and the second connection piece 3 can be arranged at intervals along the length direction of the wall plate 4. The working principle is that when the building generates positive displacement in the first half period of the earthquake, the distance between the upper floor beam plate 6 and the wall plate 4 tends to decrease, and at this time, the first connection piece 2 generates damping effect. When the building generates displacement in the second half period of the earthquake, the distance between the upper floor beam plate 6 and the wall plate 4 tends to increase, and at this time, the second connection piece 3 generates damping effect. It should be noted that the number and interval of the first connection piece 2 and the second connection piece 3 can be preset according to the length of the wall plate 4 and actual requirements, and therefore, the present application is not limited in this regard.

[0038] As shown in Figures 5-7As shown, in a specific embodiment, the first support groove 21 comprises a first side plate 211, a second side plate 212 and a first plug plate 213, the first side plate 211 is arranged spaced apart from the second side plate 212, and the first plug plate 213 is located between the first side plate 211 and the second side plate 212; the first support 22 comprises a first vertical plate 221 and a second vertical plate 222 arranged spaced apart, and the first vertical plate 221 and the second vertical plate 222 have a first plug groove 223 therebetween, and the width of the first plug groove 223 is slightly greater than the thickness of the first plug plate 213, and the lower ends of the first vertical plate 221 and the second vertical plate 222 are respectively provided with a first lower plate 224 and a second lower plate 225; the first support groove 21 and the first support 22 have a third connection state, in which the first plug plate 213 is partially inserted into the first plug groove 223, the first lower plate 224 abuts against the inner wall of the first side plate 211, the second lower plate 225 abuts against the inner wall of the second side plate 212, and the included angles between the first vertical plate 221 and the first lower plate 224 and between the second vertical plate 222 and the second lower plate 225 are obtuse angles.

[0039] As shown, Figures 5-7 in a specific embodiment, the inner walls of the first side plate 211 and the second side plate 212 are respectively provided with a first tooth surface 214, the first tooth surface 214 comprises a plurality of teeth arranged in steps from one side of the first support 22 to the other side of the first support groove 21, and the upper ends of the first side plate 211 and the second side plate 212 are respectively provided with a first limiting stop 215.

[0040] As shown, Figures 5-7 in a specific embodiment, the first support groove 21 and the first support 22 have a fourth connection state, when the upper floor beam plate 6 is relatively close to the wall plate 4 under the action of an external force, the first support groove 21 and the first support 22 move towards each other and change from the third connection state to the fourth connection state; in the fourth connection state, the first vertical plate 221 and the second vertical plate 222 press downward to generate a reaction force on the first lower plate 224 and the second lower plate 225 respectively, so that the first vertical plate 221 and the second vertical plate 222 respectively press the first plug plate 213 and generate frictional damping from the surface friction coefficient of the three, in the fourth connection state, the included angles between the first vertical plate 221 and the first lower plate 224 and between the second vertical plate 222 and the second lower plate 225 are right angles or acute angles.

[0041] As shown, Figures 5-7As shown, in one specific embodiment, the first support groove 21 further includes a first connecting plate 216, which is located on the bottom side of the first insert plate 213. The outer side walls of the first side plate 211 and the second side plate 212 are respectively provided with first supporting reinforcing ribs 217 between them and the first connecting plate 216. The first support groove 21 is connected to the wall panel 4 through the first connecting plate 216. The first support member 22 further includes a second connecting plate 226, which is located on the top side of the first vertical plate 221. The first support member 22 is connected to the upper floor beam slab 6 through the second connecting plate 226.

[0042] Specifically, the top of the second connecting plate 226 is provided with a long bolt groove, and after fastening bolts are installed through the long bolt groove, it is connected to the upper floor beam slab 6. During initial installation, the angle between the first lower plate 224 and the first vertical plate 221 is greater than 90°, and the angle between the second lower plate 225 and the second vertical plate 222 is greater than 90°. The thickness and end inclination angle of the first lower plate 224 and the second lower plate 225 are respectively matched with the inclination angle and width of the first tooth surface 214 on the inner wall of the first side plate 211 and the second side plate 212, that is, in the third connection state.

[0043] like Figures 1-4 As shown, the specific working principle of the first connecting member 2 in the above embodiment is as follows: During the first half-cycle of the earthquake, the first support member 22 moves downward under the action of the positive horizontal displacement of the building, so that the first vertical plate 221 and the second vertical plate 222 press down the first lower plate 224 and the second lower plate 225 respectively, so that the first lower plate 224 and the second lower plate 225 gradually become parallel to the horizontal plane. Since the outer sides of the first lower plate 224 and the second lower plate 225 are constrained by the first side plate 211 and the second side plate 212 respectively, the first vertical plate 221 and the second vertical plate 222 will press the first insert plate 213 inward. The friction between the plates is generated due to the compression, and the friction provides friction damping for the building.

[0044] As the building continues to undergo forward displacement, to prevent the first vertical plate 221 and the second vertical plate 222 from further compressing the first insert plate 213, the inner walls of the first side plate 211 and the second side plate 212 in this embodiment are respectively provided with first toothed surfaces 214. The multiple teeth arranged in the first toothed surfaces 214 ensure that after the compression reaches its limit, if the first support member 22 continues to displace, the first lower plate 224 and the second lower plate 225 will slide into the tooth grooves of the next level of teeth, thus continuing to provide frictional damping for the building. As the displacement continues to increase, the compression between the first vertical plate 221 and the second vertical plate 222 and the first insert plate 213 again reaches its limit, and then proceeds to the next level, and so on, until the earthquake causes the building to reach its maximum displacement in this cycle, after which the building begins to move in the opposite direction. This arrangement structure can better adapt to earthquakes of different intensities.

[0045] It needs to be explained that because the first support 22 located at the top of the wallboard 4 can still continue to displace after the extrusion force is generated at the first vertical plate 221 and the second vertical plate 222 and the first plug plate 213, and the extrusion force reaches the limit value when the first lower plate 224 and the second lower plate 225 reach the horizontal at the first tooth of the first tooth surface 214, that is, the provided frictional damping is in a constant value in the middle and late stages of the earthquake, so that the structural stiffness and the seismic force of the structure are not increased, and only the frictional damping effect of absorbing the seismic energy is provided.

[0046] As shown in Figures 8-10 In a specific embodiment, the second support groove 31 includes a third side plate 311, a fourth side plate 312, and a second plug plate 313, the third side plate 311 is arranged in a spaced manner with the fourth side plate 312, and the second plug plate 313 is located between the third side plate 311 and the fourth side plate 312; the second support 32 includes a third vertical plate 321 and a fourth vertical plate 322 arranged in a spaced manner, and the third vertical plate 321 and the fourth vertical plate 322 have a second insertion groove 323 therebetween, and the width of the second insertion groove 323 is slightly greater than the thickness of the second plug plate 313; the lower ends of the third vertical plate 321 and the fourth vertical plate 322 are respectively provided with a third lower plate 324 and a fourth lower plate 325; the second support groove 31 and the second support 32 have a fifth connection state, in which the second plug plate 313 is partially inserted into the second insertion groove 323, the third lower plate 324 abuts against the inner wall of the third side plate 311, the fourth lower plate 325 abuts against the inner wall of the fourth side plate 312, and the included angles between the third vertical plate 321 and the third lower plate 324 and between the fourth vertical plate 322 and the fourth lower plate 325 are both acute angles.

[0047] As shown in Figures 8-10 In a specific embodiment, the inner walls of the third side plate 311 and the fourth side plate 312 are respectively provided with a second tooth surface 314, the second tooth surface 314 includes a plurality of teeth arranged in a stepped manner from one side of the second support groove 31 to the other side of the second support 32, and the upper ends of the third side plate 311 and the fourth side plate 312 are respectively provided with a second limiting baffle 315.

[0048] As shown in Figures 8-10As shown, in a specific embodiment, the second support groove 31 and the second support 32 have a sixth connection state, when the external force makes the upper floor beam plate 6 relatively far away from the wall plate 4, the second support groove 31 and the second support 32 move in opposite directions, and change from the fifth connection state to the sixth connection state; in the sixth connection state, the third vertical plate 321 and the fourth vertical plate 322 move upward to make the third side plate 311 and the fourth side plate 312 generate a reaction force on the third lower plate 324 and the fourth lower plate 325 respectively, so that the third vertical plate 321 and the fourth vertical plate 322 respectively extrude the second insertion plate 313 and generate frictional damping by the surface friction coefficient of the three, in the sixth connection state, the included angle between the third vertical plate 321 and the third lower plate 324, and the included angle between the fourth vertical plate 322 and the fourth lower plate 325 are right angle or obtuse angle.

[0049] As shown, Figures 8-10 In a specific embodiment, the second support groove 31 further includes a third connecting plate 316, the third connecting plate 316 is located on one side of the bottom of the second insertion plate 313, and the outer side wall of the third side plate 311 and the fourth side plate 312 is respectively provided with a second support reinforcing rib 317 between the third connecting plate 316, the second support groove 31 is connected with the wall plate 4 through the third connecting plate 316; the second support 32 further includes a fourth connecting plate 326, the fourth connecting plate 326 is located on one side of the top of the third vertical plate 321, and the second support 32 is connected with the upper floor beam plate 6 through the fourth connecting plate 326.

[0050] When the earthquake is in the lower half cycle, it makes the building move in the opposite direction, due to the structural arrangement of the first lower plate 224 and the second lower plate 225 and the arrangement of the first tooth surface 214, it is determined that the first connecting piece 2 no longer has damping effect, while the B-type connecting piece (i.e. the second connecting piece 3) is needed to provide frictional damping in the second half cycle of the earthquake, the main difference between the second connecting piece 3 and the first connecting piece 2 is the structure of the tooth surface and the structure of the second support 32, which determines that the second connecting piece 3 can generate frictional damping in the second half cycle of the earthquake, while it will not generate damping effect in the first half cycle of the earthquake. Because the working principle of the second connecting piece 3 is similar to that of the first connecting piece 2, but the direction is opposite, therefore, the principle of the second connecting piece 3 will not be described again.

[0051] From the above, the first connecting piece 2 and the second connecting piece 3 of the second connecting part 200 can continue to displace compared with the wall under damping connecting piece 1 of the first connecting part 100, and the horizontal plate of the wall under damping connecting piece 1 cannot continue to displace after being extruded by the vertical plate. The purpose of such arrangement is that the lower part of the wall plate 4 needs a stable supporting structure, and the wall cannot move without earthquake. Therefore, the wall under damping connecting piece 1 is arranged to be a structure that cannot continue to displace after the horizontal plate is extruded by the vertical plate, so as to provide horizontal frictional damping in the earthquake while stably supporting, and the first connecting piece 2 and the second connecting piece 3 can provide horizontal and vertical frictional damping.

[0052] The overall working principle of the prefabricated building wall plate connecting piece provided in the application is as follows:

[0053] When the earthquake acts, the distance between the upper and lower floor beams is reduced, so that the prefabricated partition wall plate 4 connected with the upper and lower beams is in a compression state. Thus, the sliding friction between the vertical plug plate 122 of the wall under damping connecting piece 1 at the lower end of the wall and the left limb vertical plate 111 and the right limb vertical plate 112, and the sliding friction between the upper plate 121 and the left limb upper plate 114 and the right limb upper plate 115 provide frictional damping for the building.

[0054] Meanwhile, under the action of the earthquake, the first support piece 22 in the first connecting piece 2 and the first support groove 21 will relatively slide in the horizontal direction and relatively move in the vertical direction, and the second support piece 32 in the second connecting piece 3 and the second support groove 31 will relatively slide in the horizontal direction and relatively move in the vertical direction. Specifically, the following two cases occur:

[0055] 1) For the first connector 2, when the prefabricated wallboard 4 is sliding upward along with the first support slot 21 and the first support 22 relative to the upper beam plate, the first connector 2 is squeezed at the lower end of the first vertical plate 221 and the second vertical plate 222 towards the first insertion plate 213, so that the first insertion plate 213 is squeezed, and the frictional force is generated by the friction coefficient of the metal surface, thereby forming a frictional damping. When the first lower plate 224 and the second lower plate 225 become horizontal, the earthquake action makes the first support slot 21 and the first support 22 continue to move upward, at this time the end of the first lower plate 224 and the second lower plate 225 slips from the original tooth surface position to the next tooth surface, still squeezing the first insertion plate 213, thereby always playing a damping effect. In this process, because the arrangement direction of the second tooth surface 314 of the second connector 3 is opposite to that of the first tooth surface 214, and the angle of the third lower plate 324 and the fourth lower plate 325 in the second connector 3 is opposite to that of the first lower plate 224 and the second lower plate 225 in the first connector 2, the deformation of the third lower plate 324 and the fourth lower plate 325 of the second connector 3 upward in this process is small, and there is no obvious frictional damping between the third vertical plate 321 and the fourth vertical plate 322, that is, the second connector 3 does not play an obvious damping effect.

[0056] 2) After the first stage, due to the reciprocating motion of the earthquake, when the first support 22 and the first support slot 21 in the first connector 2 move to the limit position and then move upward (away from each other), and the second support 32 in the second connector 3 slides relative to the second support slot 31 to the limit position and then moves upward, the first lower plate 224 and the second lower plate 225 of the first connector 2 are deformed downward to the first vertical plate 221 and the second vertical plate 222, and there is no obvious frictional damping between them, that is, the first connector 2 does not play an obvious damping effect in this process. When the second support 32 in the second connector 3 moves upward, a damping effect is generated, and the inclined angle of the second tooth surface 314 and the third lower plate 324 and the fourth lower plate 325 cooperates to make the angle between the third lower plate 324 and the third vertical plate 321, and the fourth lower plate 325 and the fourth vertical plate 322 change from an acute angle to a right angle or an obtuse angle, and then slip from the original tooth surface to the adjacent tooth surface, so that the squeezing force of the third vertical plate 321 and the fourth vertical plate 322 on the second insertion plate 313 tends to be constant, thereby forming a non-stiffness damping effect.

[0057] It should be noted that the height of the first tooth surface 214 and the second tooth surface 314, the height of the first vertical plate 221, the second vertical plate 222, the third vertical plate 321, the fourth vertical plate 322, and the first insertion plate 213 and the second insertion plate 313 in the first connecting piece 2 and the second connecting piece 3 determine the damping stroke of the first connecting piece 2 and the second connecting piece 3. Such damping stroke is pre-set to be sufficient to accommodate the vertical relative displacement of the upper and lower floors during rare earthquakes. Specifically, the damping stroke can be pre-set according to the earthquake level in the local area in recent decades, and the specific pre-set damping stroke is not limited herein.

[0058] The second aspect of the embodiment of the present application provides a prefabricated building wallboard, which comprises a wallboard 4, a lower floor beam plate 5, an upper floor beam plate 6, and a connecting piece. The connecting piece is used to connect the wallboard 4 and the lower floor beam plate 5, and the wallboard 4 and the upper floor beam plate 6. The connecting piece is the friction damping energy dissipation prefabricated building wallboard connecting piece provided in the first aspect of the embodiment. Since the friction damping energy dissipation prefabricated building wallboard connecting piece provided in the first aspect of the embodiment can function as a damper, the cost of separately setting a damper for the building structure is saved. Therefore, the building using the prefabricated building wallboard has a lower construction cost compared with the building separately setting a damper.

[0059] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A prefabricated building wall panel connector for friction damping energy dissipation, characterized in that, It includes a first connecting part (100) and a second connecting part (200). The first connecting part (100) is disposed on the bottom side of the wall panel (4) and is used to connect the lower floor beam slab (5) and the wall panel (4). The second connecting part (200) is disposed on the top side of the wall panel (4) and is used to connect the wall panel (4) and the upper floor beam slab (6). The first connecting part (100) includes a plurality of wall-mounted damping connectors (1) arranged at intervals. The wall-mounted damping connectors (1) include a support plate (11) and a cover plate (12). The cover plate (12) and the support plate (11) 11) Slotted connection, the wall-mounted damping connector (1) is configured to slide and generate frictional damping between the support plate (11) and the cover plate (12) when the wall panel (4) and the lower floor beam (5) are relatively close; the second connection (200) is configured to generate frictional damping when the upper floor beam (6) and the wall panel (4) are relatively close and relatively far apart, respectively, the first connection (100) generates frictional damping in the horizontal direction, and the second connection (200) generates frictional damping in the vertical and horizontal directions.

2. The prefabricated building wall panel connector for friction damping energy dissipation according to claim 1, characterized in that, The support plate (11) includes a left limb vertical plate (111) and a right limb vertical plate (112) spaced apart on the base plate (116). There is an insertion slot (113) between the left limb vertical plate (111) and the right limb vertical plate (112). A left limb upper plate (114) is provided at the upper end of the left limb vertical plate (111), and a right limb upper plate (115) is provided at the upper end of the right limb vertical plate (112). The cover plate (12) includes an upper plate (121) and a vertical insertion plate (122). Vertical eaves (123) are provided on both sides of the upper plate (121). The support plate (11) and the cover plate (12) have a first connection state. In the first connection state, the vertical insert plate (122) is partially inserted into the insert plate groove (113). The ends of the left limb upper plate (114) and the right limb upper plate (115) are respectively engaged with the vertical eaves (123) on the corresponding side. The included angles between the left limb vertical plate (111) and the left limb upper plate (114), and between the right limb vertical plate (112) and the right limb upper plate (115) are all obtuse angles.

3. The prefabricated building wall panel connector for friction damping energy dissipation according to claim 2, characterized in that, The support plate (11) and the cover plate (12) have a second connection state. When an external force causes the wall panel (4) to move closer to the lower floor beam plate (5), the support plate (11) and the cover plate (12) move towards each other and change from the first connection state to the second connection state. In the second connection state, the upper plate (121) is pressed down so that the vertical eaves (123) on both sides of the upper plate (121) press against the left limb upper plate (114) and the right limb upper plate (115) respectively, so that the left limb vertical plate (111) and the right limb vertical plate (112) press against the vertical insert plate (122) respectively, and frictional damping is generated by the surface friction coefficient of the three. In the second connection state, the included angles between the left limb vertical plate (111) and the left limb upper plate (114), and between the right limb vertical plate (112) and the right limb upper plate (115) are all right angles.

4. The prefabricated building wall panel connector for friction damping energy dissipation according to claim 2 or 3, characterized in that, The second connecting part (200) includes a plurality of first connecting members (2) and a plurality of second connecting members (3), the first connecting members (2) and the second connecting members (3) being arranged at intervals; the first connecting member (2) includes a first support groove (21) and a first support member (22), the first support member (22) being inserted into the first support groove (21), the first connecting member (2) being configured to slide and generate frictional damping between the first support groove (21) and the first support member (22) when the upper floor beam slab (6) and the wall panel (4) are relatively close; the second connecting member (3) includes a second support groove (31) and a second support member (32), the second support member (32) being inserted into the second support groove (31), the second connecting member (3) being configured to slide and generate frictional damping between the second support groove (31) and the second support member (32) when the upper floor beam slab (6) and the wall panel (4) are relatively far apart.

5. The prefabricated building wall panel connector for friction damping energy dissipation according to claim 4, characterized in that, The first support groove (21) includes a first side plate (211), a second side plate (212) and a first insert plate (213). The first side plate (211) and the second side plate (212) are arranged at intervals, and the first insert plate (213) is located between the first side plate (211) and the second side plate (212). The first support member (22) includes a first vertical plate (221) and a second vertical plate (222) arranged at intervals. A first slot (223) is provided between the first vertical plate (221) and the second vertical plate (222), and the width of the first slot (223) is slightly greater than the thickness of the first insert plate (213). The lower ends of the first vertical plate (221) and the second vertical plate (222) are respectively provided with a first lower plate (224) and a second lower plate (225). The first support groove (21) and the first support member (22) have a third connection state. In the third connection state, the first insert plate (213) is partially inserted into the first slot (223), the first lower plate (224) abuts against the inner wall of the first side plate (211), the second lower plate (225) abuts against the inner wall of the second side plate (212), and the included angles between the first vertical plate (221) and the first lower plate (224) and between the second vertical plate (222) and the second lower plate (225) are all obtuse angles.

6. The prefabricated building wall panel connector for friction damping energy dissipation according to claim 5, characterized in that, The inner walls of the first side plate (211) and the second side plate (212) are respectively provided with a first tooth surface (214). The first tooth surface (214) includes a plurality of teeth arranged in a stepped manner from the first support member (22) to the first support groove (21). The upper ends of the first side plate (211) and the second side plate (212) are respectively provided with a first limiting stop (215).

7. The prefabricated building wall panel connector for friction damping energy dissipation according to claim 5 or 6, characterized in that, The first support groove (21) and the first support member (22) have a fourth connection state. When the external force causes the upper floor beam (6) and the wall panel (4) to move closer to each other, the first support groove (21) and the first support member (22) move towards each other and change from the third connection state to the fourth connection state. In the fourth connection state, the first vertical plate (221) and the second vertical plate (222) press down, causing the first side plate (211) and the second side plate (212) to generate reaction forces on the first lower plate (224) and the second lower plate (225) respectively, so that the first vertical plate (221) and the second vertical plate (222) squeeze the first insert plate (213) respectively and generate frictional damping by the surface friction coefficient of the three. In the fourth connection state, the included angle between the first vertical plate (221) and the first lower plate (224) and between the second vertical plate (222) and the second lower plate (225) is a right angle or an acute angle.

8. The prefabricated building wall panel connector for friction damping energy dissipation according to claim 7, characterized in that, The first support groove (21) further includes a first connecting plate (216), which is located on the bottom side of the first insert plate (213). The outer side walls of the first side plate (211) and the second side plate (212) are respectively provided with first supporting reinforcing ribs (217) between them and the first connecting plate (216). The first support groove (21) is connected to the wall panel (4) through the first connecting plate (216). The first support member (22) further includes a second connecting plate (226), which is located on the top side of the first vertical plate (221). The first support member (22) is connected to the upper floor beam plate (6) through the second connecting plate (226).

9. The prefabricated building wall panel connector for friction damping energy dissipation according to claim 8, characterized in that, The second support groove (31) includes a third side plate (311), a fourth side plate (312), and a second insert plate (313). The third side plate (311) and the fourth side plate (312) are arranged at intervals, and the second insert plate (313) is located between the third side plate (311) and the fourth side plate (312). The second support member (32) includes a third vertical plate (321) and a fourth vertical plate (322) arranged at intervals. A second slot (323) is provided between the third vertical plate (321) and the fourth vertical plate (322), and the width of the second slot (323) is slightly greater than the thickness of the second insert plate (313). The lower ends of the third vertical plate (321) and the fourth vertical plate (322) are respectively provided with a third lower plate (324) and a fourth lower plate (325). The second support groove (31) and the second support member (32) have a fifth connection state. In the fifth connection state, the second insert plate (313) is partially inserted into the second slot (323), the third lower plate (324) abuts against the inner wall of the third side plate (311), the fourth lower plate (325) abuts against the inner wall of the fourth side plate (312), and the included angles between the third vertical plate (321) and the third lower plate (324) and between the fourth vertical plate (322) and the fourth lower plate (325) are all acute angles.

10. The prefabricated building wall panel connector for friction damping energy dissipation according to claim 9, characterized in that, The inner walls of the third side plate (311) and the fourth side plate (312) are respectively provided with a second tooth surface (314). The second tooth surface (314) includes a plurality of teeth arranged in a stepped manner from the second support groove (31) side to the second support member (32) side. The upper ends of the third side plate (311) and the fourth side plate (312) are respectively provided with a second limiting bar (315).

11. The prefabricated building wall panel connector for friction damping energy dissipation according to claim 10, characterized in that, The second support groove (31) and the second support member (32) have a sixth connection state. When the external force causes the upper floor beam (6) to move away from the wall panel (4), the second support groove (31) and the second support member (32) move in opposite directions and change from the fifth connection state to the sixth connection state. In the sixth connection state, the upward movement of the third vertical plate (321) and the fourth vertical plate (322) causes the third side plate (311) and the fourth side plate (312) to generate reaction forces on the third lower plate (324) and the fourth lower plate (325) respectively, causing the third vertical plate (321) and the fourth vertical plate (322) to press the second insert plate (313) respectively, and frictional damping is generated by the surface friction coefficient of the three. In the sixth connection state, the included angles between the third vertical plate (321) and the third lower plate (324) and between the fourth vertical plate (322) and the fourth lower plate (325) are right angles or obtuse angles.

12. The prefabricated building wall panel connector for friction damping energy dissipation according to claim 9 or 10, characterized in that, The second support groove (31) also includes a third connecting plate (316), which is located on the bottom side of the second insert plate (313). The outer side walls of the third side plate (311) and the fourth side plate (312) are respectively provided with second supporting reinforcing ribs (317) between them and the third connecting plate (316). The second support groove (31) is connected to the wall panel (4) through the third connecting plate (316). The second support member (32) also includes a fourth connecting plate (326), which is located on the top side of the third vertical plate (321). The second support member (32) is connected to the upper floor beam plate (6) through the fourth connecting plate (326).

13. A precast building wall panel, comprising a wall panel (4), a lower floor beam slab (5), an upper floor beam slab (6), and connectors, the connectors being used to connect the wall panel (4) and the lower floor beam slab (5), and the wall panel (4) and the upper floor beam slab (6), characterized in that, The connector is the prefabricated building wall panel connector with friction damping energy dissipation as described in any one of claims 1-12.

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