Prefabricated assembled infilled wall panel-frame structure with anti-seismic and shock-absorbing synergy and construction method

Abstract

The present invention relates to a precast assembled infilled wallboard-frame structure with anti-seismic shock coordination and its construction method, including a frame main body, a precast assembled infilled wallboard group, a wallboard connecting piece, and a disc spring assembly. Compared with the prior art solutions, the shock-absorbing wallboard group of the present invention realizes the prefabrication and forming of the core components, improving the installation quality and efficiency; the present invention arranges the sliding shock-absorbing layer between the walls at the lower part of the wallboard, reducing the impact on building water and electricity pipelines and building use functions; during an earthquake, the present invention will only slide and perform hysteretic energy dissipation after overcoming the maximum starting sliding force, so it can provide relatively high lateral stiffness for the structure to limit inter-story deformation before sliding; after the earthquake, the disc spring assembly in the present invention can provide a certain restoring force due to being compressed, reducing the residual displacement; the present invention realizes the two-way deformation coordination of the precast assembled infilled wallboard under an earthquake, enabling the wallboard to still realize the energy dissipation and shock absorption function under the action of in-plane and out-of-plane coupling loads.

Description

Technical Field

[0001] The present invention belongs to the technical field of civil building shock absorption, and relates to a prefabricated shock-absorbing infill wall of a frame structure, and particularly to a prefabricated infill wall panel-frame structure with coordinated anti-shock and shock absorption and its construction method. Background Technique

[0002] The infill wall-frame structure is one of the main structural forms of buildings in China, which is composed of beams, columns and infill walls, and has the advantages of flexible space separation and light self-weight. In this structural form, the infill wall is considered as a self-bearing non-structural member that does not bear the vertical load of the main structure. Therefore, in structural design, the infill wall is usually input as a line load to the beam, and the amplification effect of the infill wall on the lateral stiffness of the structure is approximately considered by means of period reduction. However, this method is actually still designed based on a pure frame, without considering the deformation and bearing performance of the infill wall.

[0003] Previous earthquake disaster reports have shown that the infill wall and the main frame structure of the building are stressed and work together, and often act as the "first line of defense" under earthquakes and are severely damaged. As Figure 1 shown, and there is still a strong constraint effect between the infill wall and the main frame structure, which is likely to cause short column failure of the main structure, contrary to the realization of the design concept of "strong columns and weak beams". The damage of the infill wall is not only an important part of the economic losses in earthquakes, but also an important reason affecting the rapid restoration of the use function of buildings.

[0004] At present, certain progress has been made in the research on the seismic performance of traditional infill wall-frame structures under earthquake actions. By setting vertical columns, horizontal tie beams, ribbed frames, tie bars in the infill wall, or pasting carbon fiber cloth on the surface of the infill wall, applying new cement-based materials, etc., the seismic performance of the infill wall can be improved. To further reduce the life and economic losses caused by earthquake actions, the existing technical solutions aim at damage control of the infill wall and providing additional shock absorption capacity for the structure. Usually, the infill wall is divided horizontally (or vertically) multiple times to form a shock-absorbing infill wall with multiple wall panel units, and energy dissipation and shock absorption materials (or components) such as friction materials, viscoelastic layers or metal dampers are arranged between the wall panel units; under horizontal earthquake actions, the wall panel units will displace along the horizontal (or vertical) seams due to displacement deformation and dissipate energy.

[0005] In summary, it can be found that the existing research and technical solutions can improve the seismic performance of the infill wall and have a certain shock absorption effect. However, the above technical solutions still have the following problems that need to be further considered and solved:

[0006] 1. Low degree of wall assembly: such as Figure 2As shown, the shock-absorbing infill walls proposed by the existing technical solutions are usually composed of multiple wall panel units, and the wall panel units need to be formed by laying blocks on the construction site. Therefore, the sliding joints between the wall panel units also need to be installed and laid on the construction site, resulting in the disadvantage of low degree of wall assembly. Further, compared with the vertical strip-shaped prefabricated plates commonly used at present, the prefabricated shock-absorbing infill walls in the existing technical solutions usually adopt horizontal plates, and the different forms of the plates will cause disharmony with the existing construction technology. In particular, as Figure 3 shown, when installing horizontal shock-absorbing wall panel units in a frame with a large span, it is often difficult to achieve the horizontal continuous splicing between the horizontal shock-absorbing wall panel units. Therefore, the shock-absorbing infill walls of the existing technical solutions are only suitable for building wall panels with a small span (such as stairwell wall panels), and it is difficult to adapt to the current building requirements of large spans and large spaces.

[0007] 2. Weak lateral resistance of the structure: The traditional infill wall and the frame main body often have a reliable connection to prevent the wall from collapsing out of plane. Therefore, the infill wall has a certain lateral resistance and jointly bears the horizontal load with the frame main body under actual earthquake action. In addition, reasonably considering the lateral resistance of the infill wall is still helpful to improve the toughness of the structure and reduce the cross-sectional size of the main structure members. However, the lateral resistance of the shock-absorbing infill wall of the existing technical solution mainly depends on the shear stiffness of the shock-absorbing layer of the sliding joint between the wall panel units, and this shear stiffness is much smaller than the lateral stiffness of the traditional wall. Therefore, when the structure adopts the existing technical solution, its lateral resistance is usually weak.

[0008] 3. Difficult to restore functions after an earthquake: In the total repair cost after an earthquake, the economic and time costs for repairing the infill wall and the water, electricity, heating, and ventilation pipelines after the earthquake usually account for a relatively large proportion, and the restoration difficulty is high. As mentioned above, the existing technical solution divides the infill wall into multiple wall panel units by setting horizontal sliding joints at different heights of the wall; however, the water, electricity, heating, and ventilation pipelines are often buried in the wall surface. When the structure is subjected to earthquake action, the wall panel units will form artificial sliding cracks along the horizontal sliding joints, causing damage to the wall surface layer and the water, electricity, heating, and ventilation pipelines. In addition, due to the sliding of the shock-absorbing infill wall of the existing technical solution under earthquake action, the residual displacement of the wall after the earthquake is large and it is difficult to quickly return to the state before the earthquake ( Figure 4 ).

[0009] 4. Poor coordination of two-way deformation: In actual earthquakes, the infill wall is always subjected to the coupled action of in-plane and out-of-plane directions at the same time. In-plane damage will affect the out-of-plane bearing capacity, and out-of-plane damage will also affect the in-plane behavior. For the structure of the vertical shock-absorbing wall panel unit, its wall panel units are usually connected by pin shafts or rigid connections at both the upper and lower parts. Therefore, when there is a coupled action of in-plane and out-of-plane loads, the wall panel units are extremely prone to damage. For the structure of the horizontal shock-absorbing wall panel unit, its wall panel units are usually reliably connected to the frame main body only on one side. Therefore, the two-way deformation coordination of the shock-absorbing infill wall is not well considered: such asFigure 5 As shown, due to the unique structural form of the lateral shock-absorbing wall panel unit in the prior art solution, there is a possibility of out-of-plane displacement even under in-plane action, which will pose a great hidden danger to the out-of-plane safety of the wall; in addition, the above phenomenon further indicates that the out-of-plane load-bearing performance of the prior art solution is poor, that is, once the shock-absorbing infill wall is subjected to the coupled action of in-plane and out-of-plane loads, the deformation and energy dissipation mechanism of the shock-absorbing infill wall along the sliding joint will be significantly changed, resulting in the problem of poor coordination of bidirectional deformation. Summary of the Invention

[0010] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a prefabricated assembled infill wall panel-frame structure with anti-shock and synergy and its construction method, which can improve the bidirectional deformation coordination performance of the wall under the action of in-plane and out-of-plane loads while ensuring the building use function, improving the construction quality and assembly rate, and increasing a certain lateral resistance capacity, and realize the multi-objective synergy of resisting seismic action (seismic resistance), dissipating seismic input energy (shock absorption), reducing wall damage (damage control), and reducing the residual displacement of the structure after the earthquake to reduce the repair cost (recoverable) under the earthquake.

[0011] The technical solution provided by the present invention is as Figure 6 shown. This technical solution combines the existing seismic design method and sets the small earthquake seismic working state and the medium and large earthquake shock-absorbing working state.

[0012] When the prefabricated assembled infill wall panel-frame structure is subjected to a small earthquake, the prefabricated assembled infill wall panel and the frame main structure are in the small earthquake seismic working state, and the structure remains in the elastic working state in this state. As Figure 7 shown in the equivalent mechanical schematic diagram, no sliding hysteretic energy dissipation occurs in the prefabricated assembled infill wall panel group in the small earthquake seismic working state. Therefore, it can be equivalent to a double diagonal compression bar model in the frame main body, which can provide a certain lateral stiffness for the structure, help to limit the inter-story drift angle, and ensure the normal use function of the structure.

[0013] As Figure 8As shown in the figure, when the prefabricated and assembled infill wallboard-frame structure is subjected to medium and large earthquake actions, the inter-story shear force obtained by the infill wallboard according to the stiffness distribution further increases. After the wallboard overcomes the critical slip force composed of the maximum pre-pressure of the disc spring assembly, the wallboard will slide and hysteretically dissipate energy along the bottom shock-absorbing layer under the drive of the main body of the frame. The disc spring assembly will undergo reciprocating compression deformation to consume a small amount of earthquake input energy, enabling the structure to enter the medium and large earthquake shock-absorbing working state. Under the medium and large earthquake shock-absorbing working state, the overall lateral stiffness of the structure decreases, and the earthquake input energy decreases, effectively avoiding wall damage and failure caused by excessive inter-story shear force on the wall. Further, since the prefabricated and assembled infill wallboard and the main body of the frame mainly adopt flexible connections, it helps to realize the design concept of "strong columns and weak beams". When the wallboard slides and hysteretically dissipates energy, the strong constraint effect between the infill wall and the frame is significantly released. The release of this effect will effectively alleviate problems such as significant stiffness mutation, large top displacement, excessive inter-story displacement, and torsional irregularity caused by the discontinuous vertical arrangement and uneven plane arrangement of the infill wall. In particular, when the wall is subjected to the bidirectional coupling action of in-plane and out-of-plane loads, the prefabricated and assembled infill wallboard proposed by the present invention allows the wallboard to undergo a certain out-of-plane rotation at the bottom, while ensuring wall damage control and out-of-plane bearing capacity, without affecting the in-plane sliding and hysteretic energy dissipation performance of the wallboard, as Figure 9 shown.

[0014] After the earthquake, the shock-absorbing infill wall structure of the existing technical solution usually has a large post-earthquake residual displacement δ0, as Figure 10 shown by the dashed infill wall-frame structure in the figure. When the technical solution provided by the present invention is adopted, the disc spring assembly can provide a certain restoring force due to being in a compressed state after the earthquake, and this restoring force will effectively reduce the post-earthquake residual displacement δ1 of the prefabricated and assembled infill wallboard, that is, δ1 < δ0.

[0015] Specifically, to achieve the above working principle and purpose, the prefabricated and assembled infill wallboard-frame structure with anti-shock and shock-absorbing coordination provided by the present invention includes a frame main body, a prefabricated and assembled infill wallboard group, wallboard group fasteners, a disc spring assembly, and a U-shaped connecting member,

[0016] The prefabricated and assembled infill wallboard group is arranged inside the frame main body. Wallboard group fasteners are provided between the left and right sides at the top of the prefabricated and assembled infill wallboard group and the frame main body, and disc spring assemblies are provided between the left and right sides at the bottom and the frame main body. Each disc spring assembly includes a disc spring box, a disc spring, and a disc spring backing plate. The disc spring box is used for fixedly connecting with the frame main body. The disc spring is in a pre-compressed state and is located in the cavity formed by the disc spring box and the disc spring backing plate. The disc spring backing plate is movably arranged and contacts the prefabricated and assembled infill wallboard group;

[0017] The prefabricated and assembled infill wallboard group includes a plurality of vertical sub-wallboards, which are connected by insertion between adjacent vertical sub-wallboards. The top of each vertical sub-wallboard is connected to the frame body through the U-shaped connector, and the bottom is connected to the frame body through cast-in-place concrete. The connection between the prefabricated and assembled infill wallboard group and the frame body includes a wallboard group clip, a U-shaped connector, a disc spring assembly, and bottom cast-in-place fine aggregate concrete in sequence from top to bottom.

[0018] Further, the frame body includes a frame top beam, a frame bottom beam, a frame left column, and a frame right column. The frame top beam and the frame bottom beam are of equal length and parallel, and the two ends of the frame top beam and the bottom beam are respectively and reliably connected to the frame left column and the right column.

[0019] Further, the side wall of each vertical sub-wallboard is provided with an insertion rib or an insertion groove, and the insertion rib and the insertion groove can be inserted and fitted with each other. The adjacent vertical sub-wallboards are connected by the cooperation of the insertion rib and the insertion groove.

[0020] Further, the vertical sub-wallboards are connected by a wallboard splicing adhesive and the insertion rib and the insertion groove.

[0021] Further, each vertical sub-wallboard includes a main board, a shock-absorbing layer, and a secondary board arranged from top to bottom. A semi-circular groove is provided at the bottom of the main board, and a semi-circular rib is provided at the top of the secondary board. The main board and the secondary board are connected by the cooperation of the semi-circular groove and the semi-circular rib. The main board can rotate along the semi-circular rib at the top of the secondary board, and the shock-absorbing layer is arranged at the connection between the main board and the secondary board.

[0022] The semi-circular groove at the bottom of the main board and the semi-circular rib at the top of the secondary board can be butt-connected, and the main board can rotate a certain amount along the semi-circular rib at the top of the secondary board. As Figure 9 shown, the structures of the semi-circular groove and the semi-circular rib can ensure that the main board and the secondary board are always in uniform surface contact, which helps to achieve the goal of the two-way coordinated deformation and energy dissipation of the wall.

[0023] Further, the main board is located above the secondary board and is connected by insertion through the semi-circular groove and the semi-circular rib. A shock-absorbing layer is provided at the connection between the main board and the secondary board, and the shock-absorbing layer can be made of shock-absorbing materials such as SBS coils or low-strength mortar.

[0024] Further, a rib is also provided at the bottom of the secondary board of each vertical sub-wallboard for forming a shear key with the cast-in-place fine aggregate concrete, and the shear key and the U-shaped connector cooperate to limit the out-of-plane displacement of the prefabricated and assembled infill wallboard group.

[0025] Furthermore, the prefabricated and assembled infilled wallboard group includes left vertical wallboards and right vertical wallboards located on the left and right sides, and several intermediate vertical wallboards located between the left vertical wallboards and the right vertical wallboards.

[0026] Furthermore, the lower left part of the main board of the left vertical wallboard and the lower right part of the main board of the right vertical wallboard are connected to the frame body through the disc spring assembly. The disc spring assembly is reliably connected to the frame body. The disc spring is in a pre-compressed state. The disc spring backing plate is in hard contact with the surface of the prefabricated and assembled infilled wallboard group and only provides a pushing force.

[0027] Furthermore, other gaps between the prefabricated and assembled infilled wallboard group and the frame body are flexibly connected. The flexible connection can be filled and connected according to the flexible connection methods recommended by national standards or industry codes.

[0028] Furthermore, the left vertical wallboard includes a main board, a shock-absorbing layer, and a secondary board. The left side of the main board and the secondary board is straight, and a plug-in groove is provided on the right side. The top of the main board is straight, and a semi-circular groove is provided at the bottom. The top of the secondary board is provided with a semi-circular rib, and a rib is provided at the bottom. Several intermediate vertical wallboards are provided with plug-in ribs on the left side, and other settings are the same as those of the left vertical wallboard. The right vertical wallboard is provided with a plug-in rib on the left side, the right side is straight, and other settings are the same as those of the left vertical wallboard.

[0029] Furthermore, the upper left part and the upper right part of the prefabricated and assembled infilled wallboard group are connected to the frame body through wallboard group fasteners. The wallboard group fasteners are L-shaped and can be formed by casting fine aggregate concrete between the gaps between the upper left part and the upper right part of the prefabricated and assembled infilled wallboard group and the frame body by formwork support. The top of the prefabricated and assembled infilled wallboard group is connected to the frame body through a U-shaped connecting piece. The bottom of the prefabricated and assembled infilled wallboard group is connected to the frame body through cast-in-place bottom fine aggregate concrete. The casting height of the cast-in-place fine aggregate concrete between the gaps between the shock-absorbing wallboard group and the left frame column and the right frame column is flush with the top surface of the secondary board of several vertical sub-wallboards. It should be noted that the out-of-plane stability of a prefabricated and assembled infilled wallboard-frame structure with anti-shock and anti-vibration synergy provided by the present invention is jointly ensured by the shear keys formed by the U-shaped connecting piece, the cast-in-place bottom fine aggregate concrete, and the bottom rib of the secondary board of the prefabricated and assembled infilled wallboard group, as Figure 11 shown.

[0030] The present invention also discloses a construction method for a prefabricated and assembled infilled wallboard-frame structure with anti-shock and anti-vibration synergy, including the following steps:

[0031] Step 1: Complete the construction of the frame body;

[0032] Step 2: Install the left (or right) vertical sub-wallboard, several vertical sub-wallboards, and the right (or left) vertical sub-wallboard in sequence;

[0033] Step 3: Connect the prefabricated assembled infill wallboard group and the frame main body by the method of formwork support and casting fine aggregate concrete;

[0034] Step 4: Install the disc spring assemblies on both sides of the lower part of the prefabricated assembled infill wallboard group;

[0035] Step 5: Make a flexible connection for the gap between the prefabricated assembled infill wallboard group and the frame main body.

[0036] Compared with the prior art, the beneficial effects of the present invention are at least as follows:

[0037] 1. Improve the degree of wall assembly: The core units of the prefabricated assembled infill wallboard with anti-seismic and shock-absorbing synergy can usually be batch-designed, produced, and assembled in a prefabrication factory. The connection and installation sequence between the prefabricated assembled infill wallboard group and the frame main body are basically the same as the existing prefabricated wallboard construction technology. Therefore, it can maximize the installation quality and efficiency of the prefabricated assembled infill wallboard with anti-seismic and shock-absorbing synergy. In addition, the wallboard unit in a prefabricated assembled infill wallboard-frame structure with anti-seismic and shock-absorbing synergy is a vertical strip wallboard unit, and the units are connected by plug-in connection, which is beneficial to ensure the splicing continuity between the wallboard units. Therefore, it can be applied in buildings with large spans and large spaces.

[0038] 2. Increase the lateral resistance of the structure: The disc spring assemblies of the prefabricated assembled infill wallboard with anti-seismic and shock-absorbing synergy are in a pre-compressed state. Therefore, only when the shock-absorbing infill wall overcomes the maximum starting sliding force will it slide and hysteretically dissipate energy along the shock-absorbing layer. Compared with the existing technical solutions, the present invention can provide a relatively high lateral stiffness for the structure before sliding to limit the inter-story deformation to meet the normal use function and achieve the working state of earthquake resistance in minor earthquakes.

[0039] 3. Improve the post-earthquake recoverability: The prefabricated assembled infill wallboard with anti-seismic and shock-absorbing synergy dissipates the earthquake input energy by setting a sliding shock-absorbing layer between the main board and the sub-board in the prefabricated assembled infill wallboard group. Compared with the existing technical solutions, the present invention avoids the disadvantages of affecting the routing of building water and electricity pipelines and the building use function by opening multiple sliding seams in the middle of the wall. In addition, the disc spring assemblies are usually in a compressed state after an earthquake, so they can provide a certain restoring force to reduce the residual displacement of the wall; and compared with the traditional infill wall structure, the connection between the prefabricated assembled infill wallboard and the frame main body is mainly flexible connection. Therefore, the lateral stiffness provided by the shock-absorbing infill wall is significantly reduced, which helps to release the constraint effect of the infill wall-frame, realize the "strong column-weak beam" failure mechanism, and reduce problems such as the "short column effect" and the stiffness mutation caused by the discontinuous arrangement of the infill wallboard along the height.

[0040] 4. Bi-directional collaborative deformation energy dissipation: Under the coupled action of in-plane and out-of-plane loads, in the precast assembled infilled wall-panel - frame structure with anti-seismic and shock-absorbing collaboration, the main board and the sub-board of the precast assembled infilled wall-panel will undergo uniform surface-to-surface sliding along the shock-absorbing layer between the semi-circular grooves and semi-circular ridges, thus ensuring the bi-directional collaborative deformation energy dissipation capacity of the wall, and solving the problems of low out-of-plane load-bearing performance and poor bi-directional deformation collaboration in the previous technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0042] Figure 1 It is a vulnerability map of the infilled wall under earthquake;

[0043] Figure 2 It is a schematic diagram of the shock-absorbing infilled wall of the prior art solution;

[0044] Figure 3 It is a schematic diagram of installing a transverse shock-absorbing wall-panel unit in a large-span frame of the prior art solution;

[0045] Figure 4 It is a schematic diagram of the residual displacement after earthquake of the prior art solution;

[0046] Figure 5 It is a schematic diagram of poor bi-directional deformation collaboration of the prior art solution;

[0047] Figure 6 It is a schematic diagram of the overall structure of the present invention;

[0048] Figure 7 It is a schematic diagram of the bi-directional deformation collaboration structure and mechanism of the present invention;

[0049] Figure 8 It is an equivalent mechanical schematic diagram of the present invention in the working state of small earthquake resistance;

[0050] Figure 9 It is an equivalent mechanical schematic diagram of the present invention in the working state of large earthquake shock absorption;

[0051] Figure 10 It is an equivalent mechanical schematic diagram of the present invention in the post-earthquake state;

[0052] Figure 11 It is a schematic diagram of the structural section A - A for ensuring out-of-plane stability of the present invention;

[0053] Figure 12Schematic diagram of the disassembly of the prefabricated and assembled infill wall panel group of the present invention;

[0054] Figure 13 Schematic diagram of the structure of the left vertical wall panel of the present invention;

[0055] Figure 14 Schematic diagrams of the structures of several intermediate vertical wall panels of the present invention;

[0056] Figure 15 Schematic diagram of the structure of the right vertical wall panel of the present invention;

[0057] Figure 16 Schematic diagram of the connection section B-B between the bottom of the prefabricated and assembled infill wall panel group of the present invention and the main body of the frame;

[0058] Figure 17 Schematic diagram of the structure of the spring assembly of the present invention;

[0059] Figure 18 Schematic diagram of step 1 of Embodiment 3 of the present invention;

[0060] Figure 19 Schematic diagram of step 2 of Embodiment 3 of the present invention;

[0061] Figure 20 Schematic diagram of step 3 of Embodiment 3 of the present invention;

[0062] Wherein, 1 - top beam of the frame, 2 - bottom beam of the frame, 3 - left column of the frame, 4 - right column of the frame, 5 - left vertical wall panel, 51 - main board of the left vertical wall panel, 52 - sub-board of the left vertical wall panel, 6 - intermediate vertical wall panel, 61 - main board of the intermediate vertical wall panel, 62 - sub-board of the intermediate vertical wall panel, 7 - right vertical wall panel, 71 - main board of the right vertical wall panel, 72 - sub-board of the right vertical wall panel, 8 - shock absorption layer, 9 - wall panel group fastener, 10 - disc spring assembly, 101 - disc spring box, 102 - disc spring, 103 - disc spring backing plate, 11 - cast-in-place fine aggregate concrete at the bottom, 12 - U-shaped connecting piece, 13 - insertion groove, 14 - insertion rib, 15 - semi-circular groove, 16 - semi-circular rib. Detailed implementation manners

[0063] It should be noted that the following detailed description is exemplary and is intended to provide further illustration of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0064] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0065] For the convenience of narration, if the words "upper", "lower", "left", and "right" appear in the present invention, they only indicate the same direction as the upper, lower, left, and right directions of the accompanying drawings themselves, and do not limit the structure. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0066] Embodiment 1:

[0067] As Figures 6 - 17 shown, a prefabricated and assembled infilled wallboard-frame structure provided in this embodiment includes a frame body, in which a prefabricated and assembled infilled wallboard group is installed. The frame body includes a frame top beam 1, a frame bottom beam 2, a frame left column 3, and a frame right column 4. The frame top beam 1 is parallel to the frame bottom beam 2, the frame left column 3 is parallel to the frame right column 4, and the left and right ends of the frame top beam 1 and the frame bottom beam 2 are respectively and reliably connected to the frame left column 3 and the frame right column 4.

[0068] The prefabricated assembled infill wallboard group includes multiple vertical sub-wallboards arranged in sequence from left to right, including a left vertical wallboard 5 and a right vertical wallboard 7 located on the left and right outer sides respectively, and multiple intermediate vertical wallboards 6 located between the left vertical wallboard 5 and the right vertical wallboard 7. The side wall of the vertical sub-wallboard is provided with a plug-in rib 14 or a plug-in groove 13. The adjacent vertical sub-wallboards are connected by a wallboard splicing adhesive and the plug-in connection between the plug-in groove 13 and the plug-in rib 14 to form an overall unit of the prefabricated assembled infill wallboard group. Each vertical sub-wallboard includes a main board, a shock-absorbing layer and a secondary board. Taking the left vertical wallboard 5 as an example, the left vertical wallboard 5 includes a left vertical wallboard main board 51 located above, a left vertical wallboard secondary board 52 located below, and a shock-absorbing layer 8 located between the left vertical wallboard main board 51 and the left vertical wallboard secondary board 52. The shock-absorbing layer 8 is pasted between a semi-circular groove 15 at the bottom of the left vertical wallboard main board 51 and a semi-circular rib 16 at the top of the left vertical wallboard secondary board 52. The semi-circular groove 15 and the semi-circular rib 16 can be plugged and fitted with each other, and the left vertical wallboard main board 51 can rotate to a certain extent along the semi-circular rib 16 at the top of the left vertical wallboard secondary board 52. The left vertical wallboard 5 is connected to the frame bottom beam 2 by cast-in-place fine aggregate concrete 11, and the left vertical wallboard 5 is connected to the frame top beam 1 by a U-shaped connecting piece 12. The U-shaped connecting piece 12 is connected to the frame top beam 1 by a nail, and the U-shaped connecting piece 12 only contacts the front and back surfaces of the left vertical wallboard 5. The structures of the multiple intermediate vertical wallboards 6 and the right vertical wallboard 7 are basically the same as that of the left vertical wallboard 5, so they will not be elaborated here.

[0069] Wherein, a rib is further provided at the bottom of each secondary board. When the cast-in-place fine aggregate concrete 11 coagulates and hardens, a shear key will be formed with the rib at the bottom of the secondary board. The shear key at the bottom of the wallboard and the U-shaped connecting piece 12 at the top can effectively limit the out-of-plane displacement of the wallboard and improve the out-of-plane load-bearing performance.

[0070] The gaps between the upper left part of the left vertical wallboard 5 and the upper right part of the right vertical wallboard 7 and the frame body 2 are connected by a wallboard group fixture 9. The wallboard group fixture 9 is formed by formwork-supported casting of fine aggregate concrete and is in an L shape. A disc spring assembly 10 is installed between the lower left part of the left vertical wallboard main board 51 in the left vertical wallboard 5 and the left frame column 3, and between the lower right part of the main board 71 in the right vertical wallboard 7 and the right frame column 4. The disc spring assembly 10 includes a disc spring box 101, a disc spring 102 and a disc spring backing plate 103. The disc spring box 101 is connected to the frame body by a nail. The disc spring 102 is in a pre-compressed state, and the disc spring backing plate 103 only has a hard surface contact with the shock-absorbing wallboard group.

[0071] Under the horizontal seismic action, the top beam 1 of the frame undergoes horizontal displacement and drives the prefabricated assembled infill wall panel group to have a driven sliding trend through the wall panel group card component 9. When the prefabricated assembled infill wall panel group overcomes the starting sliding force, the disc spring 102 is compressed and deformed, and the main board and the sub-board in the prefabricated assembled infill wall panel group undergo sliding hysteretic deformation along the shock absorption layer 8, dissipating the energy input into the structure by the earthquake. After the horizontal seismic action, the post-earthquake residual displacement of the prefabricated assembled infill wall panel group makes the disc spring 102 in a compressed state. Therefore, the disc spring 102 can provide a certain restoring force to reduce the post-earthquake residual displacement and reduce the time cost and economic cost of quickly restoring to the pre-earthquake state. In addition, when the structure is subjected to out-of-plane loads, the semi-circular groove 15 at the bottom of the main board of the prefabricated assembled infill wall panel and the semi-circular rib 16 at the top of the sub-board will undergo surface-to-surface uniform sliding along the shock absorption layer 8 between the two, and generate a certain amount of out-of-plane shear energy dissipation; when the structure continues to be subjected to in-plane loads, since the semi-circular groove 15 and the semi-circular rib 16 still maintain uniform surface contact, stable sliding hysteretic energy dissipation can still occur in the in-plane direction, thus ensuring the coordinated deformation and energy dissipation of the wall under the combined action of in-plane and out-of-plane loads.

[0072] Example 2:

[0073] It is basically the same as Example 1, the difference is:

[0074] The shock absorption layer 8 is selected from shock-absorbing materials such as SBS coils or low-strength mortar.

[0075] The frame main body is a reinforced concrete frame or a steel frame.

[0076] Example 3:

[0077] This example discloses a construction method of a prefabricated assembled infill wall panel-frame structure provided by the foregoing examples. As Figures 18 - 20 shown, before installing the prefabricated assembled infill wall panel group, the construction of the frame main body should be completed first, the debris and sundries on the top beam and the bottom beam of the frame should be cleaned, and the base surface should be leveled; then, according to the construction drawings, the wall panel installation position line should be drawn at the wall panel installation position to indicate the installation position of the wall panel.

[0078] The construction method of the prefabricated assembled infill wall panel-frame structure includes the following steps:

[0079] Step 1:

[0080] According to the pre-indicated wall panel installation position, after positioning the left vertical wall panel 5, install the U-shaped connecting piece 12 at its top, and insert a wooden wedge at its bottom. The installation schematic diagram is as Figure 18 shown; during installation, use a straightedge to adjust the verticality of the wall surface to make the lower edge of the wall panel coincide with the wall panel installation position line to ensure that the verticality and flatness of the wall panel meet the standards and specifications.

[0081] Step 2:

[0082] Repeat the process of Step 1, and successively install and splice several intermediate vertical wall panels 6 and the right vertical wall panel 7. When splicing, first apply wall panel splicing adhesive in the insertion groove 13 between adjacent vertical sub-wall panels, and then insert the insertion groove 13 and the insertion rib 14 to splice and form the overall unit of the prefabricated and assembled filling wall panel group.

[0083] Step 3:

[0084] After the prefabricated and assembled filling wall panel group is spliced, pour fine aggregate concrete into the gap between its bottom and the top of the frame bottom beam 2. When pouring, it should be ensured that the cast-in-place fine aggregate concrete 11 at the bottom completely fills the gap, and the pouring height of the fine aggregate concrete in the gap between the prefabricated and assembled filling wall panel group and the frame left column 3 and the frame right column 4 is flush with the tops of the auxiliary plates 51 and 71. See the schematic diagram of the pouring height of the gap Figure 16 ; Further, after the cast-in-place fine aggregate concrete 11 at the bottom coagulates and hardens, pull out the bottom wooden wedge and fill the holes left by the wooden wedge with fine aggregate concrete; Further, form wall panel group clamping members 9 by respectively formwork-pouring fine aggregate concrete at the upper left and upper right parts of the prefabricated and assembled filling wall panel group; Further, respectively install disc spring assemblies 10 at the bottoms of the left vertical wall panel 5 and the right vertical wall panel 6 on the side close to the frame main body. The schematic diagram of the specific installation position of the disc spring assembly 10 is shown in Figure 6 、 Figure 16 。

[0085] Step 4:

[0086] For other gaps between the prefabricated and assembled filling wall panel group and the frame main body, perform plugging and caulking treatments with appropriate flexible connection materials according to the requirements of moisture-proof, sound insulation, and heat insulation.

[0087] Although the specific embodiments of the present invention are described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present invention.

Claims

1. A prefabricated assembled infilled wall panel-frame structure with anti-seismic and shock-absorbing synergy, characterized in that, It includes a frame body, a prefabricated and assembled infill wallboard group, a wallboard group fixture (9), a disc spring assembly (10) and a U-shaped connector (12). The prefabricated and assembled infill wallboard group is arranged inside the frame body. The prefabricated and assembled infill wallboard group includes a plurality of vertical sub-wallboards, and adjacent vertical sub-wallboards are connected by insertion. The top of each vertical sub-wallboard is connected to the frame body through the U-shaped connector (12), and the bottom is connected to the frame body through cast-in-place fine aggregate concrete (11). Each vertical sub-wallboard includes a main board, a shock-absorbing layer and a secondary board arranged from top to bottom. A semi-circular groove is provided at the bottom of the main board, and a semi-circular rib is provided at the top of the secondary board. The main board and the secondary board are connected by the cooperation of the semi-circular groove and the semi-circular rib. The main board can rotate along the semi-circular rib at the top of the secondary board, and the shock-absorbing layer is arranged at the connection between the main board and the secondary board. The wallboard group fixtures (9) are arranged between the left and right sides at the top of the prefabricated and assembled infill wallboard group and the frame body, and the wallboard group fixtures (9) are formed by casting fine aggregate concrete. The disc spring assemblies (10) are arranged between the lower parts of the main boards of the vertical sub-wallboards on the left and right sides and the frame body. Each disc spring assembly (10) includes a disc spring box (101), a disc spring (102) and a disc spring backing plate (103). The disc spring box (101) is used for fixedly connecting with the frame body. The disc spring is in a pre-compressed state. The disc spring (102) is located in the cavity formed by the disc spring box (101) and the disc spring backing plate (103), and the disc spring backing plate (103) is movably arranged and contacts the prefabricated and assembled infill wallboard group.

2. The prefabricated assembled infilled wall panel-frame structure with anti-seismic shock coordination according to claim 1, characterized in that Each vertical sub-wallboard is provided with an insertion rib or an insertion groove on its side wall, and adjacent vertical sub-wallboards are connected by the cooperation of the insertion rib and the insertion groove.

3. The prefabricated assembled infilled wall panel-frame structure with anti-shock coordination according to claim 1, characterized in that Each vertical sub-wallboard is also provided with a rib at the bottom of its secondary board for forming a shear key with the cast-in-place fine aggregate concrete (11), and the shear key and the U-shaped connector cooperate to limit the out-of-plane displacement of the prefabricated and assembled infill wallboard group.

4. The prefabricated assembled infilled wallboard-frame structure with anti-seismic synergy according to claim 1, wherein, The shock-absorbing layer adopts SBS coils or low-strength mortar.

5. The prefabricated assembled infilled wallboard-frame structure with anti-shock coordination according to claim 1, wherein The frame body includes a frame top beam, a frame bottom beam, a frame left column and a frame right column. The frame top beam and the frame bottom beam are of equal length and parallel, and the two ends of the frame top beam and the bottom beam are respectively reliably connected to the frame left column and the frame right column.

6. The prefabricated assembled infilled wallboard-frame structure with anti-seismic synergy according to claim 5, characterized in that, The casting height of the cast-in-place fine aggregate concrete (11) between the prefabricated and assembled infill wallboard group and the gaps between the frame left column and the frame right column is flush with the top surface of the secondary boards of several vertical sub-wallboards.

7. The prefabricated assembled infilled wallboard-frame structure with anti-shock coordination according to claim 1, characterized in that The wallboard group fixtures (9) are formed by casting fine aggregate concrete by formwork support between the gaps between the upper left and upper right parts of the prefabricated and assembled infill wallboard group and the frame body.

8. The prefabricated assembled infilled wall panel-frame structure with anti-seismic shock coordination according to any one of claims 1-7, characterized in that, The frame body is a reinforced concrete frame or a steel frame.

9. A construction method of a prefabricated and assembled infilled wall panel-frame structure with anti-shock coordination according to any one of claims 1-8, characterized in that, It includes the following steps: Step 1: Complete the construction of the frame body. Step 2: Install a plurality of vertical sub-wallboards in sequence. Step 3: Connect the prefabricated and assembled infill wallboard group and the frame body by the method of casting fine aggregate concrete by formwork support. Step 4: Install the disc spring assemblies on both sides of the lower part of the prefabricated and assembled infill wallboard group. Step 5: Make a flexible connection for the gap between the prefabricated and assembled infill wallboard group and the frame body.

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