A prefabricated building wallboard connecting piece capable of energy dissipation and a prefabricated building wallboard

Abstract

The application relates to a prefabricated building wallboard connecting piece capable of energy dissipation and a prefabricated building wallboard, which comprises a plurality of first connecting pieces and a plurality of second connecting pieces, the first connecting pieces and the second connecting pieces are arranged at the top of the wallboard and are used for connecting the wallboard and an upper floor beam plate; the first connecting piece comprises a first supporting groove and a first supporting piece, the first supporting piece is in plug-in cooperation with the first supporting groove, and the first connecting piece is configured to generate frictional damping between the first supporting groove and the first supporting piece through sliding friction when the upper floor beam plate is relatively close to the wallboard; the second connecting piece comprises a second supporting groove and a second supporting piece, the second supporting piece is in plug-in cooperation with the second supporting groove, and the second connecting piece is configured to generate frictional damping between the second supporting groove and the second supporting piece through sliding friction when the upper floor beam plate is relatively far away from the wallboard; the directions in which the two connecting pieces generate the frictional damping include a vertical direction and a horizontal direction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prefabricated building, in particular to a prefabricated building wallboard connecting piece capable of energy dissipation. BACKGROUND

[0002] The connecting joint of the prefabricated building component is the core technology for developing prefabricated buildings. The structural components (including beams, plates, columns, shear walls) in buildings and the building partition walls and enclosure walls of non-structural components are all developing prefabricated components and connecting pieces suitable for prefabricated construction. At present, prefabricated wallboards are widely used in prefabricated buildings, such as lightweight aerated concrete strip wall (ALC). At present, simple anchor nails and steel sheets are used to connect with the main structure. The prefabricated wallboard filled in the prefabricated building frame is a non-structural component and does not bear the load of the main structure. It is required that the connection between the prefabricated wallboard and the main structure does not increase the stiffness of the main structure or has as little impact as possible on the stiffness of the main structure, so as to reduce the increase value of the seismic action borne by the structure. The degree to which this goal can be achieved is mainly determined by the connection structure between the prefabricated wallboard and the main structure. The design requires that the partition wall 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 promote vibration isolation and damping technology, and various technical standards are introduced, such as “Building Vibration Isolation Design Standard” GB / T 51408-2021, “Building Energy Dissipation Technology” JGJ297-2013, “Building Energy Dissipation Damper” JGJ2009, etc. At present, the design idea of building damping is to increase dampers in buildings, such as friction pendulum dampers, BRB buckling-restrained brace, etc. However, the increased dampers also increase the cost of the building. SUMMARY

[0004] The first aspect of the present application provides a prefabricated building wallboard connecting piece capable of energy dissipation. The prefabricated building wallboard connecting piece can play the role of a damping energy dissipation device while connecting the wallboard and the upper floor beam plate, serving as a building energy dissipation device during an earthquake, thereby saving the cost of separately arranging dampers in the building structure.

[0005] The first aspect of the present application provides a prefabricated building wallboard connecting piece capable of energy dissipation, which comprises a plurality of first connecting pieces and a plurality of second connecting pieces, the first connecting pieces and the second connecting pieces are respectively arranged at the top of the wallboard and used for connecting the wallboard and the upper floor beam slab; the first connecting piece comprises a first support slot and a first support piece, the first support piece is inserted and matched with the first support slot, the first connecting piece is configured to slide and rub between the first support slot and the first support piece and generate frictional damping when the upper floor beam slab is relatively close to the wallboard; the second connecting piece comprises a second support slot and a second support piece, the second support piece is inserted and matched with the second support slot, the second connecting piece is configured to slide and rub between the second support slot and the second support piece and generate frictional damping when the upper floor beam slab is relatively far away from the wallboard; the directions in which the first connecting piece and the second connecting piece generate frictional damping include vertical direction and horizontal direction.

[0006] In addition, the prefabricated building wallboard connecting piece capable of energy dissipation provided by the present application also has the following additional technical features:

[0007] In an optional scheme, 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 piece 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, 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;

[0008] The first support slot and the first support piece have a first connection state, in the first 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 plate and the first lower plate and between the second vertical plate and the second lower plate are obtuse angles.

[0009] In an optional scheme, 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 slot, and the upper ends of the first side plate and the second side plate are respectively provided with a first limiting baffle.

[0010] In an optional scheme, the first support slot and the first support piece have a second connection state, when an external force causes the upper floor beam slab to be relatively close to the wallboard, the first support slot and the first support piece move towards each other and change from the first connection state to the second connection state.

[0011] In the second connection state, the first vertical plate and the second vertical plate are pressed down so that the first side plate and the second side plate respectively generate a reaction force on the first lower plate and the second lower plate, so that the first vertical plate and the second vertical plate respectively 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 right angles or acute angles in the second 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, the third vertical plate and the fourth vertical plate have a second plug groove therebetween, and the width of the second plug groove is slightly greater than the thickness of the second plug 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.

[0014] The second support groove and the second support member have a third 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 angles between the third vertical plate and the third lower plate and between the fourth vertical plate and the fourth lower plate are acute angles.

[0015] 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, the second tooth surface comprises a plurality of teeth arranged in steps from one side of the second support groove to the 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.

[0016] In an alternative solution, the second support slot and the second support have a fourth connection state, when the upper floor beam plate is relatively far away from the wall plate under the action of external force, the second support slot and the second support move in opposite directions, and change from the third connection state to the fourth connection state.

[0017] In the fourth 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 through the third side plate and the fourth side plate, so that the third vertical plate and the fourth vertical plate press the second insertion plate and generate frictional damping through 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.

[0018] In an alternative solution, the second support slot further comprises a third connecting plate located on one side of the bottom of the second insertion plate, and the outer side 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 further comprises a fourth connecting plate located on one side of the top of the third vertical plate, and the second support is connected with the upper floor beam plate through the fourth connecting plate.

[0019] The beneficial effects of the present application are:

[0020] In the present application, the prefabricated building wall plate connector connects the wall plate and the upper floor beam plate through the first connector and the second connector. Since the first connector can generate sliding friction and generate frictional damping when the upper floor beam plate is relatively close to the wall plate, and the second connector can generate sliding friction and generate frictional damping when the upper floor beam plate is relatively far away from the wall plate, the first connector and the second connector can play the role of damping energy absorber while connecting the wall plate and the upper floor beam plate, as a building energy dissipation device during an earthquake, thereby saving the cost of separately setting up dampers for building structures.

[0021] The second aspect of the present application provides a prefabricated building wall plate, which comprises a wall plate, an upper floor beam plate and a connector, the connector is used to connect the wall plate and the upper floor beam plate, and the connector is the energy-dissipating prefabricated building wall plate connector provided in the first aspect. Since the energy-dissipating prefabricated building wall plate connector provided in the first aspect can play the role of damping energy absorber, saving the cost of separately setting up dampers for building structures, therefore, the building using the prefabricated building wall plate has lower construction cost compared with the building separately setting up damping energy absorber.

[0022] It should be understood that the foregoing general description and the following detailed description are only examples and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The overall assembly structure schematic diagram of the prefabricated building wall plate connecting piece provided in the present application;

[0024] Figure 2 The structure schematic diagram of the first connecting piece provided in the present application in the first connecting state;

[0025] Figure 3 The plane structure schematic diagram of the first connecting piece in the first connecting state in the present application; Figure 2

[0026] Figure 4 The structure schematic diagram of the first connecting piece provided in the present application in the second connecting state;

[0027] Figure 5 The structure schematic diagram of the second connecting piece provided in the present application in the third connecting state;

[0028] Figure 6 The plane structure schematic diagram of the second connecting piece in the third connecting state in the present application; Figure 5

[0029] Figure 7 The structure schematic diagram of the second connecting piece provided in the present application in the fourth connecting state.

[0030] Wall plate 1, first connecting piece 2, first support groove 21, first side plate 211, second side plate 212, first plug plate 213, first tooth surface 214, first limiting stop 215, first connecting plate 216, first support reinforcing rib 217, first support piece 22, first vertical plate 221, second vertical plate 222, first plug groove 223, first lower plate 224, second lower plate 225, second connecting plate 226, second connecting piece 3, second support groove 31, third side plate 311, fourth side plate 312, second plug plate 313, second tooth surface 314, second limiting stop 315, third connecting plate 316, second support reinforcing rib 317, second support piece 32, third vertical plate 321, fourth vertical plate 322, second plug groove 323, third lower plate 324, fourth lower plate 325, fourth connecting plate 326, upper floor beam plate 4.

[0031] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application. DETAILED DESCRIPTION

[0032] ​​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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0037] like Figures 1-7 As shown, the first aspect of this application provides an energy-dissipating prefabricated building wall panel connector, which includes a plurality of first connectors 2 and a plurality of second connectors 3. The first connectors 2 and second connectors 3 are respectively disposed on the top of the wall panel 1 and used to connect the wall panel 1 and the upper floor beam slab 4. The first connector 2 includes a first support groove 21 and a first support member 22. The first support member 22 is inserted into the first support groove 21. The first connector 2 is configured such that when the upper floor beam slab 4 and the wall panel 1 are relatively close, the first support groove 21 and the first support member 22 slide and generate frictional damping. The second connector 3 includes a second support groove 31 and a second support member 32. The second support member 32 is inserted into the second support groove 31. The second connector 3 is configured such that when the upper floor beam slab 4 and the wall panel 1 are relatively far apart, the second support groove 31 and the second support member 32 slide and generate frictional damping. The directions in which the first connector 2 and the second connector 3 generate frictional damping include the vertical direction and the horizontal direction.

[0038] In the embodiment, the connectors arranged on the top of the wallboard 1 are divided into A type and B type, i.e. the first connector 2 and the second connector 3, which can be arranged at intervals along the length direction of the wallboard 1. The working principle is that when the building produces positive displacement in the first half cycle of the earthquake, the spacing between the upper floor beam plate 4 and the wallboard 1 tends to decrease, at which time the first connector 2 produces damping effect; when the building produces positive displacement in the second half cycle of the earthquake, the spacing between the upper floor beam plate 4 and the wallboard 1 tends to increase, at which time the second connector 3 produces 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 wallboard 1 and actual requirements, and therefore the present text does not make specific limitations.

[0039] In the embodiment, the prefabricated building wallboard connector connects the wallboard 1 and the upper floor beam plate 4 through the first connector 2 and the second connector 3. Since the first connector 2 can produce sliding friction and generate friction damping when the upper floor beam plate 4 and the wallboard 1 are relatively close, and the second connector 3 can produce sliding friction and generate friction damping when the upper floor beam plate 4 and the wallboard 1 are relatively far apart, the first connector 2 and the second connector 3 can play the role of damping energy absorber while connecting the wallboard 1 and the upper floor beam plate 4, serving as a building energy dissipation device during the earthquake, thereby saving the cost of separately setting dampers for the building structure.

[0040] As shown in FIG. 1, Figures 2-4 In a specific embodiment, the first support groove 21 includes a first side plate 211, a second side plate 212 and a first plug plate 213, the first side plate 211 and the second side plate 212 are arranged at intervals, and the first plug plate 213 is located between the first side plate 211 and the second side plate 212; the first support 22 includes a first vertical plate 221 and a second vertical plate 222 arranged at intervals, 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; 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 first 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.

[0041] As shown in FIG. 1, Figures 2-4As shown in the 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 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. The upper ends of the first side plate 211 and the second side plate 212 are respectively provided with a first limiting stop 215.

[0042] As shown in the embodiment, the first support groove 21 and the first support 22 have a second connection state. When an external force causes the upper floor beam plate 4 to relatively approach the wall plate 1, the first support groove 21 and the first support 22 move towards each other and change from the first connection state to the second connection state. In the second connection state, the first vertical plate 221 and the second vertical plate 222 press down 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 through the surface friction coefficient of the three. In the second connection state, the 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 a right angle or an acute angle. Figures 2-4 As shown in the embodiment, the first support groove 21 further comprises a first connecting plate 216 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 with the wall plate 1 through the first connecting plate 216. The first support 22 further comprises a second connecting plate 226 located on one side of the top of the first vertical plate 221. The first support 22 is connected with the upper floor beam plate 4 through the second connecting plate 226.

[0043] Figures 2-4 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 4. In the initial installation, the angles between the first lower plate 224 and the first vertical plate 221 and between the second lower plate 225 and the second vertical plate 222 are 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, i.e. in the first connection state.

[0044] As shown in the embodiment, the first support groove 21 further comprises a first connecting plate 216 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 with the wall plate 1 through the first connecting plate 216. The first support 22 further comprises a second connecting plate 226 located on one side of the top of the first vertical plate 221. The first support 22 is connected with the upper floor beam plate 4 through the second connecting plate 226.

[0045] As shown in the embodiment, the first support groove 21 further comprises a first connecting plate 216 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 with the wall plate 1 through the first connecting plate 216. The first support 22 further comprises a second connecting plate 226 located on one side of the top of the first vertical plate 221. The first support 22 is connected with the upper floor beam plate 4 through the second connecting plate 226. 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 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.

[0046] 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.

[0047] It needs to be explained that because the first support member 22 located at the top of the wallboard 1 can still continue to displace after the first vertical plate 221 and the second vertical plate 222 generate squeezing force to the first plug plate 213, and the first lower plate 224 and the second lower plate 225 reach the horizontal position at the first tooth of the first tooth surface 214, 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.

[0048] As Figures 5-7As shown, in one specific embodiment, 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 larger than the thickness of the second insert plate 313. The lower ends of plate 321 and 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 third connection state. In the third 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.

[0049] like Figures 5-7 As shown, in one 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 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 strip 315.

[0050] like Figures 5-7 As shown, in one specific embodiment, the second support groove 31 and the second support member 32 have a fourth connection state. When an external force causes the upper floor beam 4 and the wall panel 1 to move away from each other, the second support groove 31 and the second support member 32 move in opposite directions and change from the third connection state to the fourth connection state. In the fourth connection state, the third vertical plate 321 and the fourth vertical plate 322 move upward, causing 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. This causes 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 fourth 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.

[0051] like Figures 5-7As shown, in a specific embodiment, the second support groove 31 further comprises a third connecting plate 316, which is located at the bottom side of the second plug plate 313, and a second support reinforcing rib 317 is arranged between the outer side wall of the third side plate 311 and the fourth side plate 312 and the third connecting plate 316, respectively, and the second support groove 31 is connected with the wallboard 1 through the third connecting plate 316; the second support piece 32 further comprises a fourth connecting plate 326, which is located at the top side of the third vertical plate 321, and the second support piece 32 is connected with the upper floor beam plate 4 through the fourth connecting plate 326.

[0052] 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 plays a damping effect, and 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 lies in the structure of the tooth surface and the structure of the second support piece 32, which determines that the second connecting piece 3 can produce frictional damping in the second half cycle of the earthquake, and it will not produce 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.

[0053] The overall working principle of the prefabricated building wallboard connecting piece provided in the present application is:

[0054] Under the action of the earthquake, the vibration wave will cause the first support piece 22 in the first connecting piece 2 to slide relative to the first support groove 21 in the horizontal direction and move relative to it in the vertical direction; at the same time, it will also cause the second support piece 32 in the second connecting piece 3 to slide relative to the second support groove 31 in the horizontal direction and move relative to it in the vertical direction. Specifically, there are two cases:

[0055] 1) For the first connector 2, when the prefabricated wall panel 1 slides upward along with the first support slot 21 and the first support 22 relative to the upper beam panel, 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 generated by the friction coefficient of the metal surface surface generates frictional damping. When the first lower plate 224 and the second lower plate 225 become horizontal, the earthquake causes the first support slot 21 and the first support 22 to continue to move upward, at which time the end of the first lower plate 224 and the second lower plate 225 slides off the original tooth surface position to the next tooth surface, still squeezing the first insertion plate 213, thereby always playing a damping role. 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 also opposite to that of the first lower plate 224 and the second lower plate 225 in the first connector 2, the upward deformation of the third lower plate 324 and the fourth lower plate 325 in the second connector 3 during 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 role.

[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 in the first connector 2 are deformed downward against 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 role during 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 change 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 from an acute angle to a right angle or an obtuse angle, and then slides off 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, 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 should be preset to be sufficient to accommodate the vertical relative displacement of the upper floor and the lower floor in the rare earthquake. The damping stroke can be preset according to the earthquake level in the local area in recent decades, and the specific limitation is not made herein.

[0058] As shown in Figure 1 The second aspect of the embodiments of the present application provides a prefabricated building wallboard. The prefabricated building wallboard comprises a wallboard 1, an upper floor beam plate 4 and a connecting piece. The connecting piece is used to connect the wallboard 1 and the upper floor beam plate 4, and the connecting piece is the energy-dissipating prefabricated building wallboard connecting piece provided in the first aspect. Since the energy-dissipating prefabricated building wallboard connecting piece provided in the first aspect can play the role of a damper, as a building energy dissipation device in an earthquake, 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 energy dissipation device.

[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 should be included in the protection scope of the present application.

Claims

1. A pre-fabricated building wall panel connection capable of energy dissipation, characterized in that, The first connecting piece (2) and the second connecting piece (3) are arranged on the top of the wallboard (1) and are used for connecting the wallboard (1) and the upper floor beam slab (4); the first connecting piece (2) comprises a first support groove (21) and a first support piece (22), the first support piece (22) is inserted and matched with the first support groove (21), and the first connecting piece (2) is configured to generate frictional damping between the first support groove (21) and the first support piece (22) by sliding friction when the upper floor beam slab (4) is relatively close to the wallboard (1); the second connecting piece (3) comprises a second support groove (31) and a second support piece (32), the second support piece (32) is inserted and matched with the second support groove (31), and the second connecting piece (3) is configured to generate frictional damping between the second support groove (31) and the second support piece (32) by sliding friction when the upper floor beam slab (4) is relatively far away from the wallboard (1); the direction in which the first connecting piece (2) and the second connecting piece (3) generate frictional damping includes a vertical direction and a horizontal direction; The first support groove (21) comprises a first side plate (211), a second side plate (212) and a first insertion plate (213); the inner walls of the first side plate (211) and the second side plate (212) are respectively provided with first tooth surfaces (214), the first tooth surfaces (214) comprise a plurality of teeth arranged in steps from one side of the first support piece (22) to one 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 first limiting baffle strips (215); The second support groove (31) comprises a third side plate (311), a fourth side plate (312) and a second insertion plate (313); the inner walls of the third side plate (311) and the fourth side plate (312) are respectively provided with second tooth surfaces (314), the second tooth surfaces (314) comprise a plurality of teeth arranged in steps from one side of the second support groove (31) to one side of the second support piece (32), and the upper ends of the third side plate (311) and the fourth side plate (312) are respectively provided with second limiting baffle strips (315).

2. The pre-fabricated building wall panel connection capable of dissipating energy according to claim 1, wherein, The first side plate (211) and the second side plate (212) are arranged at intervals, and the first insertion plate (213) is located between the first side plate (211) and the second side plate (212); the first support piece (22) comprises a first vertical plate (221) and a second vertical plate (222) arranged at intervals, a first insertion groove (223) is formed between the first vertical plate (221) and the second vertical plate (222), and the width of the first insertion groove (223) is slightly greater than the thickness of the first insertion 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 slot (21) and the first support (22) have a first connection state, in which the first plug-in plate (213) is partially inserted into the first plug-in 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 obtuse.

3. The pre-fabricated building wall panel connector capable of energy dissipation according to claim 2, wherein, The first support slot (21) and the first support (22) have a second connection state, in which, when the upper floor beam plate (4) is relatively close to the wall plate (1) under the action of an external force, the first support slot (21) and the first support (22) move towards each other and change from the first connection state to the second connection state. In the second connection state, the first vertical plate (221) and the second vertical plate (222) press downward to make the first side plate (211) and the second side plate (212) 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) press the first plug-in plate (213) and generate frictional damping through the surface friction coefficient of the three, and in the second 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.

4. The pre-fabricated building wall panel connector capable of energy dissipation according to claim 2, wherein, The first support slot (21) further comprises a first connecting plate (216) located on one side of the bottom of the first plug-in plate (213), and the outer walls of the first side plate (211) and the second side plate (212) are respectively provided with first support reinforcing ribs (217) between the first connecting plate (216), and the first support slot (21) is connected with the wall plate (1) through the first connecting plate (216); the first support (22) further comprises a second connecting plate (226) located on one side of the top of the first vertical plate (221), and the first support (22) is connected with the upper floor beam plate (4) through the second connecting plate (226).

5. The pre-fabricated building wall panel connection capable of dissipating energy according to any one of claims 1 or 4, wherein, The third side plate (311) is arranged spaced apart from the fourth side plate (312), and the second insertion plate (313) is located between the third side plate (311) and the fourth side plate (312); the second support member (32) comprises a third vertical plate (321) and a fourth vertical plate (322) arranged spaced apart, and a second insertion slot (323) is formed between the third vertical plate (321) and the fourth vertical plate (322), and the width of the second insertion slot (323) is slightly greater than the thickness of the second insertion plate (313), and 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 slot (31) and the second support member (32) have a third connection state, in which the second insertion plate (313) is partially inserted into the second insertion 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 acute angles.

6. The energy dissipatable pre-fabricated building wall panel connector according to claim 5, wherein, The second support slot (31) and the second support member (32) have a fourth connection state, in which when an external force causes the upper floor beam plate (4) to move away from the wall plate (1), the second support slot (31) and the second support member (32) move away from each other, and change from the third connection state to the fourth connection state; In the fourth 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) press the second insertion plate (313) respectively and generate frictional damping through the surface friction coefficient of the three, and in the fourth 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.

7. The energy dissipatable pre-fabricated building wall panel connector according to claim 5, wherein, The second support groove (31) further comprises a third connecting plate (316) located at the bottom side of the second plug plate (313), and second support reinforcing ribs (317) are arranged between the outer side walls of the third side plate (311) and the fourth side plate (312) and the third connecting plate (316) respectively, and the second support groove (31) is connected with the wallboard (1) through the third connecting plate (316); the second support piece (32) further comprises a fourth connecting plate (326) located at the top side of the third vertical plate (321), and the second support piece (32) is connected with the upper floor beam plate (4) through the fourth connecting plate (326).

8. A prefabricated building wall panel comprising a wall panel (1), an upper floor beam panel (4) and a connecting piece for connecting the wall panel (1) and the upper floor beam panel (4), characterized in that, The connecting piece is a precast building wallboard connecting piece capable of energy dissipation according to any one of claims 1-7.

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