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

Abstract

The application relates to a frictional damping energy-dissipation prefabricated building wall plate connecting piece and prefabricated building wall plate, which comprises a first connecting part and a second connecting part. The first connecting part is arranged on one side of the bottom of the wall plate and is used for connecting a lower floor beam plate and the wall plate. The second connecting part is arranged on one side of the top of the wall plate and is used for connecting the wall plate and an upper floor beam plate. The first connecting part comprises a plurality of wall-down damping connecting pieces arranged at intervals. The wall-down damping connecting piece comprises a supporting plate and a cover plate. The cover plate and the supporting plate are in slot insertion joint cooperation. The wall-down damping connecting piece is configured to generate sliding friction between the supporting plate and the cover plate and generate frictional damping when the wall plate and the lower floor beam plate are relatively close. The second connecting part is configured to generate frictional damping when the upper floor beam plate and the wall plate are relatively close and relatively far away. The direction in which the first connecting part generates frictional damping comprises a horizontal direction. The direction in which the second connecting part generates frictional damping comprises a vertical direction and a 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 of the wall-damping connecting pieces comprises a supporting plate and a cover plate, the cover plate and the supporting plate are in a slot-inserting joint, 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 comprises a horizontal direction, and the direction in which the second connecting part generates frictional damping comprises 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:

[0007] 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 inserting-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 inserting plate, and the two sides of the upper plate are provided with vertical eaves;

[0008] The supporting plate and the cover plate have a first connection state, in the first connection state, the vertical inserting plate is partially inserted into the inserting-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.

[0009] In an optional solution, the supporting plate and the cover plate have a second connection state, in the second connection state, the supporting plate and the cover plate move towards each other due to the relative close of the wallboard and the lower floor beam plate, and the first connection state changes into the second connection state;

[0010] 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 inserting plate and generate frictional damping through the surface friction coefficients of the three, and 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.

[0011] 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.

[0012] 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;

[0013] 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.

[0014] 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.

[0015] 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;

[0016] 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, 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.

[0017] 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.

[0018] 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;

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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 right angle or obtuse angle in the sixth connection state.

[0023] 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.

[0024] The beneficial effects of the present application are:

[0025] 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 setting a damper for the building structure as a building energy dissipation device during an earthquake.

[0026] 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, thereby saving the cost of separately setting a damper for the building structure, therefore, the building using the prefabricated building wall plate also has lower construction cost compared with the building separately setting a damping energy dissipation device.

[0027] 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

[0028] Figure 1The overall assembly structure schematic diagram of the prefabricated building wall plate connecting piece provided in the present application;

[0029] Figure 2 The structure schematic diagram of the wall under damping connecting piece provided in the present application in the first connecting state;

[0030] Figure 3 The plane structure schematic diagram of the wall under damping connecting piece in the first connecting state in the present application; Figure 2

[0031] Figure 4 The structure schematic diagram of the wall under damping connecting piece provided in the present application in the second connecting state;

[0032] Figure 5 The structure schematic diagram of the first connecting piece provided in the present application in the third connecting state;

[0033] Figure 6 The plane structure schematic diagram of the first connecting piece in the third connecting state in the present application; Figure 5

[0034] Figure 7 The structure schematic diagram of the first connecting piece provided in the present application in the fourth connecting state;

[0035] Figure 8 The structure schematic diagram of the second connecting piece provided in the present application in the fifth connecting state;

[0036] Figure 9 The plane structure schematic diagram of the second connecting piece in the fifth connecting state in the present application; Figure 8

[0037] Figure 10 The structure schematic diagram of the second connecting piece provided in the present application in the sixth connecting state.

[0038] ​​​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.

[0039] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0040] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0041] It should be understood that the described embodiments are merely some embodiments of this application, and not all embodiments. All other technical solutions obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0042] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0043] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0044] It should be noted that the "upper", "lower", "left", "right" and other orientation words described in the embodiments of the present application are described from the angle shown in the drawings, and should not be understood as a limitation on 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 be directly connected to another element "on" or "under", or indirectly connected to another element "on" or "under" through an intermediate element.

[0045] As Figures 1-10 shown, the embodiments of the present application provide a friction 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 to connect 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 to connect the wallboard 4 and the upper floor beam slab 6; the first connecting part 100 comprises a plurality of spaced wall under damping connecting pieces 1, 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 friction damping when the wallboard 4 is relatively close to the lower floor beam slab 5; the second connecting part 200 is configured to generate friction damping when the upper floor beam slab 6 is relatively close to and relatively far away from the wallboard 4, respectively, the direction of friction damping generated by the first connecting part 100 includes a horizontal direction, and the direction of friction damping generated by the second connecting part 200 includes a vertical direction and a horizontal direction.

[0046] In the embodiments, the friction 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 friction damping between the lower floor beam slab 5 and the wallboard 4, and the second connecting part 200 can generate friction damping when the upper floor beam slab 6 is relatively close to and relatively far away from the wallboard 4, respectively, therefore 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, as a building energy dissipation device during an earthquake, thereby saving the cost of separately arranging dampers in the building structure.

[0047] As Figures 2-4As shown in the drawings, in one embodiment, 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, and the left limb vertical plate 111 and the right limb vertical plate 112 have a plug-in 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 plug-in plate 122, and the two sides of the upper plate 121 are provided with vertical eaves 123; the supporting plate 11 and the cover plate 12 have a first connection state, in which the vertical plug-in plate 122 is partially plugged into the plug-in 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 vertical eaves 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.

[0048] As shown in the drawings, Figures 2-4 In one embodiment, the supporting plate 11 and the cover plate 12 have a second connection state, in which, when the wallboard 4 is relatively close to the lower floor beam plate 5 under the action of an external force, the supporting 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 plug-in plate 122 and generate frictional damping from 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 right angles.

[0049] As shown in the drawings, Figures 2-3 In the initial state (the first connection state), the included angles between the left limb upper plate 114 and the left limb vertical plate 111 and between the right limb upper plate 115 and the right limb vertical plate 112 are greater than 90°, the thickness of the vertical plug-in plate 122 is slightly smaller than the width of the plug-in plate slot 113, the vertical eaves 123 have a body shape of thick upper and thin lower, and the distances between the closest points of 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.

[0050] When installing, the cover plate 12 is fixed to the lower end of the wall plate 4, the supporting plate 11 is fixedly 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 supporting plate 11, under the gravity of the partition wall plate 4, the upper plate 121 of the cover plate 12 and the vertical eaves 123 at the edge position extrude the left limb upper plate 114 and the right limb upper plate 115 of the supporting plate 11, so that the left limb upper plate 114 and the right limb upper plate 115 are gradually flattened, 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, since the width of the insertion plate slot 113 is greater than the thickness of the vertical insertion plate 122, the difference 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 extruded tightly to 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, since the connecting piece is a metal piece, the surface has a certain friction coefficient, so the extrusion force of the left limb upper plate 114 and the right limb upper plate 115 acting on the vertical insertion plate 122 tends to be constant, when the earthquake acts, the wall plate 4 thus generates a constant horizontal friction force with the main structure piece, forming the friction damping at the lower connecting piece.

[0051] Specifically, the working principle of the wall lower damping connecting piece 1 provided by the application is that the cover plate 12 moves downward under the gravity of the retaining wall, thereby making the cover plate 12 press 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 inward, the extrusion force between the steel plates will generate a friction force, therefore, when the building is horizontally displaced under the action of the 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, so that the sliding friction between the vertical insertion plate 122 of the wall lower 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, that is, the second connecting state, provides friction damping for the building.

[0052] As Figures 5-10As shown, in one specific embodiment, the second connecting part 200 includes a plurality of first connecting members 2 and a plurality of second connecting members 3, with the first connecting members 2 and the second connecting members 3 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, and the first connecting member 2 is configured such that when the upper floor beam slab 6 and the wall panel 4 are relatively close, the first support groove 21 and the first support member 22 slide against each other and generate frictional damping; 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, and the second connecting member 3 is configured such that when the upper floor beam slab 6 and the wall panel 4 are relatively far apart, the second support groove 31 and the second support member 32 slide against each other and generate frictional damping.

[0053] In this embodiment, the connectors installed on the top of the wall panel 4 are divided into type A and type B, namely, the first connector 2 and the second connector 3. The first connector 2 and the second connector 3 can be arranged at intervals along the length of the wall panel 4. Their working principle is as follows: when the building undergoes positive displacement during the first half of the earthquake cycle, the distance between the upper floor beam slab 6 and the wall panel 4 tends to decrease, at which time the first connector 2 generates a damping effect; when the earthquake occurs during the second half of the earthquake cycle, the distance between the upper floor beam slab 6 and the wall panel 4 tends to increase, at which time the second connector 3 generates a damping effect. It should be noted that the number and interval of the first connector 2 and the second connector 3 can be preset according to the length of the wall panel 4 and actual needs, etc., therefore, this article does not impose specific limitations.

[0054] like Figures 5-7 As shown, in one specific embodiment, 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 larger than the thickness of the first insert plate 213. The lower ends of the 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.

[0055] like Figures 5-7As shown in the drawings, 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, which includes 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. The upper ends of the first side plate 211 and the second side plate 212 are respectively provided with a first limiting stop 215.

[0056] As shown in the drawings, Figures 5-7 In a specific embodiment, the first support groove 21 and the first support 22 have a fourth connection state. When an external force causes the upper floor beam plate 6 to relatively approach the wall plate 4, 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 are pressed to generate a reaction force on the first side plate 211 and the second side plate 212, respectively, on the first lower plate 224 and the second lower plate 225, respectively. The first vertical plate 221 and the second vertical plate 222 are pressed against the first plug plate 213 and generate frictional damping due to 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 the included angle between the second vertical plate 222 and the second lower plate 225 are a right angle or an acute angle.

[0057] As shown in the drawings, Figures 5-7 In a specific embodiment, the first support groove 21 further includes a first connecting plate 216, which is located on one side of the bottom of the first plug plate 213. The outer walls of the first side plate 211 and the second side plate 212 are respectively provided with a first support reinforcing rib 217 between the first connecting plate 216. The first support groove 21 is connected to the wall plate 4 through the first connecting plate 216. The first support 22 further includes a second connecting plate 226, which is located on one side of the top of the first vertical plate 221. The first support 22 is connected to the upper floor beam plate 6 through the second connecting plate 226.

[0058] Specifically, the top of the second connecting plate 226 is provided with a long bolt slot, and the fastening bolt is installed through the long bolt slot to connect with the upper floor beam plate 6. In the initial installation, the included angle between the first lower plate 224 and the first vertical plate 221 is greater than 90°, and the included angle between the second lower plate 225 and the second vertical plate 222 is greater than 90°. The thickness and end inclination of the first lower plate 224 and the second lower plate 225 are matched with the inclination and width of the first tooth surface 214 of the inner walls of the first side plate 211 and the second side plate 212, respectively, that is, in the third connection state.

[0059] As shown in the drawings, Figures 1-4As shown, the specific working principle of the first connecting member 2 in the above embodiment is as follows: during the first half period of the earthquake, the first support member 22 moves downward under the action of the horizontal displacement of the building in the positive direction, so that the first vertical plate 221 and the second vertical plate 222 press the first lower plate 224 and the second lower plate 225 downward, 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 respectively constrained by the first side plate 211 and the second side plate 212, the first vertical plate 221 and the second vertical plate 222 will be squeezed inwardly to the first plug plate 213. The friction between the plates due to the squeezing provides frictional damping for the building.

[0060] When the positive displacement of the building continues to occur, in order to prevent the first vertical plate 221 and the second vertical plate 222 from continuing to squeeze the first plug plate 213, in the embodiment of the present application, a first tooth surface 214 is arranged on the inner wall of the first side plate 211 and the second side plate 212, respectively. The plurality of teeth arranged in the first tooth surface 214 can make the first lower plate 224 and the second lower plate 225 slide into the tooth groove of the next level of teeth if the first support member 22 continues to displace after reaching the squeezing limit state, and then continue to provide frictional damping for the building. With the continuous increase of displacement, the squeezing of the first vertical plate 221 and the second vertical plate 222 to the first plug plate 213 reaches the squeezing limit again, and then enters the next level, and so on, until the building reaches the maximum displacement of the current period and starts to move in the reverse direction. Such an arrangement structure can better adapt to earthquakes of different intensities.

[0061] It needs to be explained that because the first support member 22 located at the top of the wallboard 4 can still continue to displace after the squeezing force between the first vertical plate 221 and the second vertical plate 222 and the first plug plate 213 is generated, and the first lower plate 224 and the second lower plate 225 are at the first tooth of the first tooth surface 214 and reach the horizontal, the squeezing force reaches the limit value, that is, the frictional damping provided is constant in the middle and late stages of the earthquake. This will not increase the structural stiffness, nor will it increase the seismic force of the structure, but only provide the frictional damping effect of absorbing seismic energy.

[0062] As Figures 8-10As shown in the drawings, in a specific embodiment, the second support groove 31 comprises a third side plate 311, a fourth side plate 312 and a second insert plate 313, the third side plate 311 is arranged spaced apart from the fourth side plate 312, and the second insert plate 313 is located between the third side plate 311 and the fourth side plate 312; the second support 32 comprises a third vertical plate 321 and a fourth vertical plate 322 arranged spaced apart, and the third vertical plate 321 and the fourth vertical plate 322 have a second insert groove 323 therebetween, and the width of the second insert groove 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 32 have a fifth connection state, in which the second insert plate 313 is partially inserted into the second insert 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.

[0063] As shown in the drawings, 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 comprises a plurality of teeth arranged in steps 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 stop 315.

[0064] As shown in the drawings, Figures 8-10 in a specific embodiment, the second support groove 31 and the second support 32 have a sixth connection state, when an external force causes the upper floor beam plate 6 to relatively move 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 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 press the second insert plate 313 and generate frictional damping 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.

[0065] As shown in the drawings, Figures 8-10As shown, in one specific embodiment, the second support groove 31 further 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 support 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 further 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 slab 6 through the fourth connecting plate 326.

[0066] When an earthquake occurs in its second half-cycle, causing the building to move in the opposite direction, the structural design of the first lower plate 224 and the second lower plate 225, as well as the design of the first toothed surface 214, determines that the first connector 2 no longer provides a damping effect. During the second half-cycle of the earthquake, a type B connector (i.e., the second connector 3) is required to provide frictional damping. The main difference between the second connector 3 and the first connector 2 lies in the construction of the toothed surface and the structure of the second support 32. This construction determines that the second connector 3 can generate frictional damping in the second half-cycle of the earthquake, but it will not provide damping during the first half-cycle. Since the working principle of the second connector 3 is similar to that of the first connector 2, but in the opposite direction, the principle of the second connector 3 will not be elaborated further in this paper.

[0067] As can be seen from the above, compared with the wall-damping connector 1 of the first connecting part 100, the horizontal plate of the wall-damping connector 1 cannot continue to move after being squeezed by the vertical plate, while the first connector 2 and the second connector 3 can continue to move. The purpose of this setting is because the lower part of the wall panel 4 needs a stable supporting structure. The wall cannot move when there is no earthquake. Therefore, the wall-damping connector 1 is set as a structure that cannot continue to move after being squeezed by the horizontal plate and the vertical plate, so as to provide stable support and horizontal friction damping during earthquakes. The first connector 2 and the second connector 3 can provide friction damping in both horizontal and vertical directions.

[0068] The overall working principle of the prefabricated building wall panel connector provided in this application is as follows:

[0069] During an earthquake, the distance between the floor beams of the upper and lower floors decreases, causing the prefabricated partition wall slabs 4 connected to the upper and lower beams to be under compression. Thus, the sliding friction generated between the vertical insert plate 122 of the wall damping connector 1 at the lower end of the wall and the left vertical plate 111 and the right vertical plate 112, as well as the sliding friction generated between the upper plate 121 and the left upper plate 114 and the right upper plate 115, provides friction damping for the building.

[0070] Meanwhile, under the action of earthquake, the vibration wave will cause the first support 22 in the first connecting member 2 to slide relative to the first support groove 21 in horizontal direction and to move relative to the first support groove 21 in vertical direction; meanwhile, the second support 32 in the second connecting member 3 will slide relative to the second support groove 31 in horizontal direction and move relative to the second support groove 31 in vertical direction. The specific conditions are as follows:

[0071] 1) For the first connecting member 2, when the prefabricated wallboard 4 slides upward together with the first support groove 21 relative to the upper layer beam plate together with the first support 22, the first connecting member 2 is blocked by the first tooth surface 214 on the first lower plate 224 and the second lower plate 225, so that the angle of the first lower plate 224 and the second lower plate 225 tends to be horizontal, thus extruding the lower end of the first vertical plate 221 and the second vertical plate 222 towards the first plug-in plate 213, thereby extruding the first plug-in plate 213, so that the friction coefficient of the metal surface generates friction force to form frictional damping. When the first lower plate 224 and the second lower plate 225 become horizontal, the first support groove 21 and the first support 22 continue to move upward under the action of earthquake, 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 extruding the first plug-in plate 213, thereby always playing a damping role. In this process, because the arrangement direction of the second tooth surface 314 of the second connecting member 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 connecting member 3 is opposite to that of the first lower plate 224 and the second lower plate 225 in the first connecting member 2, therefore, the upward deformation of the third lower plate 324 and the fourth lower plate 325 in the second connecting member 3 to the third vertical plate 321 and the fourth vertical plate 322 is small, so there is no obvious frictional damping between them, that is, the second connecting member 3 does not play an obvious damping role.

[0072] 2) after the first stage, when the first support 22 in the first connecting piece 2 and the first support groove 21 move to the limit position and then move upward (away from each other), and the second support 32 in the second connecting piece 3 slides to the limit position and then moves upward relative to the second support groove 31, the first lower plate 224 and the second lower plate 225 of the first connecting piece 2 are deformed downward, and the extrusion deformation of the first vertical plate 221 and the second vertical plate 222 is small, so there is no obvious friction damping between the two, that is, the first connecting piece 2 does not play a significant damping role in this process. When the second support 32 in the second connecting piece 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 extrusion 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 stiffness-free damping effect.

[0073] It should be noted that the height of the first tooth surface 214 and the second tooth surface 314 in the first connecting piece 2 and the second connecting piece 3, 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 determine the damping stroke of the first connecting piece 2 and the second connecting piece 3. Such a damping stroke should be pre-set to be sufficient to accommodate the vertical relative displacement of the upper and lower floors during a rare earthquake. 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 in the present application.

[0074] 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 play the role of a damper, the cost of separately setting up a damper for the building structure is saved, and therefore, the building using the prefabricated building wallboard has a lower construction cost compared with the building separately setting up a damper.

[0075] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A frictionally damped energy-dissipating precast architectural wall panel connector, characterized by, The first connecting part is arranged at the bottom side of the wallboard and is used for connecting the lower floor beam plate and the wallboard, and the second connecting part is arranged at the top side of the wallboard and is used for connecting the wallboard and the upper floor beam plate; the first connecting part comprises a plurality of spaced wall under damping connectors, the wall under damping connector comprises a supporting plate and a cover plate, the cover plate and the supporting plate are inserted and connected, and the wall under damping connector is configured to slide and rub between the supporting plate and the cover plate and generate frictional damping when the wallboard and the lower floor beam plate are relatively close; the second connecting part is configured to generate frictional damping when the upper floor beam plate and the wallboard are relatively close and relatively far away, respectively, the direction in which the first connecting part generates frictional damping comprises a horizontal direction, and the direction in which the second connecting part generates frictional damping comprises a vertical direction and a horizontal direction; The second connecting part comprises a plurality of first connectors and a plurality of second connectors, and the first connectors and the second connectors are spaced apart; the first connector comprises a first support groove and a first support piece, the first support piece is inserted and connected with the first support groove, and the first connector is configured to slide and rub between the first support groove and the first support piece and generate frictional damping when the upper floor beam plate and the wallboard are relatively close; the second connector comprises a second support groove and a second support piece, the second support piece is inserted and connected with the second support groove, and the second connector is configured to slide and rub between the second support groove and the second support piece and generate frictional damping when the upper floor beam plate and the wallboard are relatively far away; The first support groove comprises a first side plate, a second side plate and a first insertion plate, 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 piece to the other side of the first support groove, and the upper ends of the first side plate and the second side plate are respectively provided with a first limiting baffle; The second support groove comprises a third side plate, a fourth side plate and a second insertion plate, the inner walls of the third side plate and the fourth side plate are respectively provided with a second tooth surface, the second tooth surface comprises a plurality of teeth arranged in steps from one side of the second support groove to the other side of the second support piece, and the upper ends of the third side plate and the fourth side plate are respectively provided with a second limiting baffle.

2. The frictionally damped energy dissipation precast construction wall panel connector according to claim 1, wherein, The supporting plate comprises a left limb vertical plate and a right limb vertical plate arranged on the bottom plate, the left limb vertical plate and the right limb vertical plate have an insertion plate groove 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 groove, the ends of the left limb upper plate and the right limb upper plate are respectively connected 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.

3. The frictionally damped energy dissipation precast construction wall panel connector according to claim 2, wherein, The supporting plate and the cover plate have a second connection state, when external force makes the wall plate relatively close to the lower floor beam plate, the supporting plate and the cover plate move towards each other, and change from the first connection state to the second connection state; In the second connection state, the upper plate is pressed down to make the vertical eaves on both sides of the upper plate respectively extrude the left limb upper plate and the right limb upper plate, so that the left limb vertical plate and the right limb vertical plate respectively extrude the vertical insertion plate 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 and the left limb upper plate, and the right limb vertical plate and the right limb upper plate are both right angles.

4. The frictionally damped energy dissipation precast construction wall panel connector according to claim 3, wherein, The first side plate and the second side plate are arranged in a spaced manner, and the first insertion plate is located between the first side plate and the second side plate; the first support member includes first vertical plates and second vertical plates arranged in a spaced manner, and the first vertical plates and the second vertical plates 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 plates and the second vertical plates are respectively provided with first lower plates and second lower plates; The first support slot and the first support member have a third connection state, in the third connection state, 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 plates and the first lower plates, and between the second vertical plates and the second lower plates are obtuse angles.

5. The frictionally damped energy dissipation precast construction wall panel connector according to claim 4, wherein, The first support slot and the first support member have a fourth connection state, when external force makes the upper floor beam plate relatively close to the wall plate, the first support slot and the first support member move towards each other, and change from the third connection state to the fourth connection state; In the fourth connection state, the first vertical plates and the second vertical plates are pressed down to make the first side plate and the second side plate respectively generate reaction force on the first lower plate and the second lower plate, so that the first vertical plates and the second vertical plates respectively extrude the first insertion plate and generate frictional damping by the surface friction coefficient of the three, in the fourth connection state, the included angles between the first vertical plates and the first lower plates, and between the second vertical plates and the second lower plates are right angles or acute angles.

6. The frictionally damped energy dissipation precast construction wall panel connector according to claim 5, wherein, The first support slot further includes a first connecting plate, the first connecting plate is located on one side of the bottom of the first insertion plate, the outer side walls of the first side plate and the second side plate are respectively provided with first support reinforcing ribs between the first connecting plate, and the first support slot is connected with the wall plate through the first connecting plate; the first support member further includes a second connecting plate, the second connecting plate is located on 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.

7. The frictionally damped energy dissipated precast construction wall panel connector according to claim 6, wherein, The third side plate and the fourth side plate are arranged in a spaced manner, and the second insert 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 in a spaced manner, and a second insertion slot is formed between the third vertical plate and the fourth vertical plate, and the width of the second insertion slot is slightly greater than the thickness of the second insert plate, and 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 slot and the second support member have a fifth connection state, in which the second insert plate is partially inserted into the second insertion slot, 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 angles between the third vertical plate and the third lower plate and between the fourth vertical plate and the fourth lower plate are both acute angles.

8. The frictionally damped energy dissipated precast construction wall panel connector according to claim 7, wherein, The second support slot and the second support member have a sixth connection state, in which, when the upper floor beam plate and the wall plate relatively move away under an external force, the second support slot 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 a reaction force on the third lower plate and the fourth lower plate respectively, so that the third vertical plate and the fourth vertical plate respectively press the second insert plate and generate frictional damping through the surface friction coefficient of the three, and in the sixth connection state, the included angles between the third vertical plate and the third lower plate and between the fourth vertical plate and the fourth lower plate are right angles or obtuse angles.

9. The frictionally damped energy dissipated precast construction wall panel connector according to claim 7, wherein, The second support slot further comprises a third connecting plate located on one side of the bottom of the second insert plate, and the outer walls of the third side plate and the fourth side plate are respectively provided with a second support reinforcing rib between the third connecting plate, and the second support slot is connected with the wall plate through the third connecting plate; the second support member further comprises a fourth connecting plate located on 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.

10. A prefabricated building wall panel comprising a wall panel, a lower floor beam panel, an upper floor beam panel and a connecting piece for connecting the wall panel and the lower floor beam panel, and the wall panel and the upper floor beam panel, characterized in that, The connecting member is the frictional damping energy dissipation prefabricated building wall plate connecting member of any one of claims 1-9.

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