Prefabricated embedded enclosure wallboard connecting structure, construction method and building module

Abstract

The invention provides a prefabricated embedded enclosure wall plate connecting structure, a construction method and a building module. The prefabricated embedded enclosure wall plate connecting structure comprises a first prefabricated wall plate, a second prefabricated wall plate and a third prefabricated wall plate, a convex part matched with the concave part is arranged at one end of the second prefabricated wallboard; the connecting piece is arranged along the joint position of the first prefabricated wallboard and the second prefabricated wallboard; the connecting piece is connected with the first prefabricated wall plate and the second prefabricated wall plate. Field installation of the wallboard can be simplified; the sunken parts and the protruding parts are connected through the connecting pieces to form a protected installation space, when interlayer shear deformation happens to the main body frame structure under the earthquake action, transverse dislocation happens to the upper and lower adjacent prefabricated wall panels, the dislocation can drive the connecting pieces to bend and deform to absorb energy deformation in the earthquake process, and therefore the safety of the earthquake is improved. Shear force is released in advance to consume earthquake energy, earthquake damage to a main body structure is reduced, low damage or even no damage to the prefabricated wall panel after an earthquake is achieved, and only connecting pieces need to be replaced.

Description

Technical Field

[0001] This invention relates to the field of building structure technology, and in particular to a prefabricated embedded wall panel connection structure, construction method and building module. Background Technology

[0002] Currently, precast concrete wall panels are widely used in prefabricated building structures. However, while precast wall panels improve construction efficiency, their connection joints still have fatal flaws. For example, the connection method is usually rigid, which is prone to cracking at the joints and corners during earthquakes, leading to a chain reaction of damage due to incoordination with the frame deformation. Summary of the Invention

[0003] The technical problem to be solved by this invention is to provide a prefabricated embedded wall panel connection structure, construction method and building module to solve the problems of large damage and high repair cost of prefabricated walls.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A prefabricated embedded wall panel connection structure includes: The first precast wall panel has a recessed portion at one end; The second precast wall panel has a protrusion at one end that matches the recessed portion; A connector is provided along the joint between the first precast wall panel and the second precast wall panel; and the connector is connected to the first precast wall panel and the second precast wall panel respectively.

[0005] To solve the above-mentioned technical problems, another technical solution adopted by the present invention is as follows: A construction method for a prefabricated embedded wall panel connection structure, used in the preparation of the prefabricated embedded wall panel connection structure as described above, the method comprising: Prepare a first precast wall panel with recesses and a second precast wall panel with protrusions; Prepare connectors that match the lengths of the first and second precast wall panels; The recessed part of the first prefabricated wall panel is spliced ​​with the protruding part of the second prefabricated wall panel; The connector is placed at the joint between the first precast wall panel and the second precast wall panel, and the connector is connected to the first precast wall panel and the second precast wall panel.

[0006] To solve the above-mentioned technical problems, another technical solution adopted by the present invention is as follows: A building module with a prefabricated embedded wall panel connection structure includes the prefabricated embedded wall panel connection structure as described above, and building structural components; the prefabricated embedded wall panel connection structure is connected to the building structural components to form a building structure.

[0007] The beneficial effects of this invention are as follows: by prefabricating a first prefabricated wall panel with a recess and a second prefabricated wall panel with a protrusion, the on-site installation of the wall panels is simplified; and after the recess and the protrusion are connected by connectors, a protected installation space is formed. When the main frame structure undergoes inter-story shear deformation under earthquake action, the installation space causes lateral misalignment between adjacent prefabricated wall panels. This misalignment can cause the connectors to bend and deform, that is, the connectors play an energy dissipation role. By absorbing the energy deformation of the earthquake process, the shear force is released in advance, thereby consuming earthquake energy and reducing earthquake damage to the main structure. This achieves low or even no damage to the prefabricated wall panels after the earthquake, requiring only the replacement of the connectors. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of a prefabricated embedded wall panel connection structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the first prefabricated wall panel and the second prefabricated wall panel in an embodiment of the present invention. Figure 3 This is a schematic diagram of the connector structure of a prefabricated embedded wall panel connection structure in an embodiment of the present invention; Figure 4 This is an exploded view of a prefabricated embedded wall panel connection structure according to an embodiment of the present invention; Label Explanation: 1. First precast wall panel; 11. Recessed portion; 2. Second precast wall panel; 21. Protrusion; 3. Connecting parts; 31. Connecting hole pair; 4. Embedded rods; 41. Bolts; 42. Nuts. Detailed Implementation

[0009] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0010] A prefabricated embedded wall panel connection structure includes: The first precast wall panel has a recessed portion at one end; The second precast wall panel has a protrusion at one end that matches the recessed portion; A connector is provided along the joint between the first precast wall panel and the second precast wall panel; and the connector is connected to the first precast wall panel and the second precast wall panel respectively.

[0011] As can be seen from the above description, the beneficial effects of the present invention are as follows: by prefabricating a first prefabricated wall panel with a recess and a second prefabricated wall panel with a protrusion, the on-site installation of the wall panels is simplified; and after the recess and the protrusion are connected by connectors, a protected installation space is formed. When the main frame structure undergoes inter-story shear deformation under earthquake action, lateral misalignment occurs between adjacent prefabricated wall panels. This misalignment can drive the connectors to bend and deform, that is, the connectors play an energy dissipation role. By absorbing the energy deformation of the earthquake process, the shear force is released in advance, thereby consuming earthquake energy, reducing earthquake damage to the main structure, and achieving low or even no damage to the prefabricated wall panels after the earthquake, requiring only replacement of the connectors.

[0012] Furthermore, both the first precast wall panel and the second precast wall panel are provided with embedded rods, which are arranged along the length direction; the connector is provided with a pair of connecting holes along the length direction, which are respectively connected to the embedded rods on the first precast wall panel and the second precast wall panel.

[0013] As can be seen from the above description, by setting embedded rods on the first and second precast wall panels and setting connecting hole pairs on the connectors, the connectors can be effectively connected to the first and second precast wall panels based on the cooperation relationship between the embedded rods and the connecting hole pairs.

[0014] Furthermore, the embedded member includes a bolt and a nut; the bolt is disposed within the first precast wall panel and the second precast wall panel; the nut connects the bolt and the connector.

[0015] As can be seen from the above description, using bolts and nuts as embedded rods simplifies the connection between the connectors and the precast wall panels compared to welding and other connection methods.

[0016] Furthermore, the first precast wall panel is disposed above the second precast wall panel.

[0017] As can be seen from the above description, by setting the first precast wall panel above the second precast wall panel, that is, setting the protrusion upwards, the waterproof performance of the structure is improved compared to setting the recess upwards.

[0018] Furthermore, the connector is elongated and has an aspect ratio greater than 6.

[0019] As can be seen from the above description, by setting the aspect ratio of the connector to be greater than 6, the connector is more likely to bend and deform, resulting in better energy dissipation.

[0020] Furthermore, the cross-section of the protrusion is trapezoidal.

[0021] As can be seen from the above description, by setting the cross-section of the protrusion to a trapezoidal shape, the connection strength of the precast wall panel can be improved; and it is easier to demold the precast wall panel during preparation.

[0022] Another embodiment of the present invention provides a construction method for a prefabricated embedded wall panel connection structure, used for the preparation of a prefabricated embedded wall panel connection structure as described above, the method comprising: Prepare a first precast wall panel with recesses and a second precast wall panel with protrusions; Prepare connectors that match the lengths of the first and second precast wall panels; The recessed part of the first prefabricated wall panel is spliced ​​with the protruding part of the second prefabricated wall panel; The connector is placed at the joint between the first precast wall panel and the second precast wall panel, and the connector is connected to the first precast wall panel and the second precast wall panel.

[0023] As described above, by prefabricating a first prefabricated wall panel with a recess and a second prefabricated wall panel with a protrusion, the on-site installation of the wall panels is simplified. Furthermore, the connection between the recess and the protrusion forms a protected installation space for the connectors. When the main frame structure undergoes inter-story shear deformation under earthquake action, lateral misalignment occurs between adjacent prefabricated wall panels. This misalignment can cause the connectors to bend and deform, thereby consuming earthquake energy, reducing earthquake damage to the main structure, and achieving low or even no damage to the prefabricated wall panels after the earthquake, requiring only the replacement of the connectors.

[0024] Further, the preparation of the first prefabricated wall panel with recesses and the second prefabricated wall panel with protrusions includes: Embedded members are installed in the first precast wall panel and the second precast wall panel; The preparation of the connector that matches the length of the first precast wall panel and the second precast wall panel includes: A connection hole corresponding to the embedded rod is formed on the connector.

[0025] As described above, by setting embedded rods in the first and second precast wall panels and forming corresponding connecting holes on the connector, the connector can be effectively connected to the first and second precast wall panels through the mating relationship between the embedded rods and the connecting holes. Further, the preparation of the first prefabricated wall panel with recesses and the second prefabricated wall panel with protrusions includes: Bolts are pre-embedded in the first precast wall panel and the second precast wall panel; The step of connecting the connector to the first precast wall panel and the second precast wall panel includes: The bolt and the connector are connected by a nut.

[0026] As can be seen from the above description, using bolts and nuts as embedded rods simplifies the connection between the connectors and the precast wall panels compared to welding and other connection methods.

[0027] Further, the preparation of the first prefabricated wall panel with recesses and the second prefabricated wall panel with protrusions includes: The first precast wall panel and the second precast wall panel are formed by using lightweight aggregate concrete, foamed concrete, aerated concrete, lightweight high-strength concrete or lightweight functional concrete.

[0028] As can be seen from the above description, using lightweight aggregate concrete, foamed concrete, aerated concrete, lightweight high-strength concrete or lightweight functional concrete to form the first precast wall panel and the second precast wall panel can meet the performance requirements of precast wall panels in different scenarios.

[0029] Another embodiment of the present invention provides a building module with a prefabricated embedded wall panel connection structure, characterized in that it includes the prefabricated embedded wall panel connection structure as described above, and building structural components; the prefabricated embedded wall panel connection structure is connected to the building structural components to form a building structure.

[0030] The prefabricated embedded wall panel connection structure, construction method, and building module provided by this invention can be applied to prefabricated wall applications. Existing prefabricated wall connection methods, such as mortar joints which suffer from interlayer displacement angle issues, bolt connections which are prone to concrete splitting, and rubber pad connections which carry the risk of instability, address these problems. The prefabricated embedded wall panel connection structure and construction method provided in this embodiment, using prefabricated wall panels with recessed and protruding portions, and connected with connectors, avoids the problems existing in existing connection methods and solves the issues of significant damage and high repair costs to prefabricated walls. Specifically: Please refer to Figure 1A prefabricated embedded wall panel connection structure includes: a first prefabricated wall panel 1, one end of which is provided with a recess 11; and a second prefabricated wall panel 2, one end of which is provided with a protrusion 21 matching the recess 11. The recess 11 and the protrusion 21 form a tongue-and-groove structure, the tongue-and-groove structure including but not limited to rectangular straight tongue-and-groove, 45° beveled tongue-and-groove, integrated water channel tongue-and-groove, and thermally broken tongue-and-groove, etc.; at the same time, the angle formed on the tongue-and-groove structure is set as an obtuse angle to facilitate the demolding of the prefabricated wall panel in the prefabrication plant. In this embodiment, the prefabricated wall panel serves as the main filling component, the wall panel is prefabricated in the factory, and a tongue-and-groove structure is provided on its edge.

[0031] A connector 3 is provided along the joint between the first precast wall panel 1 and the second precast wall panel 2; and the connector 3 is connected to both the first precast wall panel 1 and the second precast wall panel 2. Connectors 3 are provided on both sides of the joint between the first precast wall panel 1 and the second precast wall panel 2. In this embodiment, steel bars are used as connectors 3, and the material of connector 3 is steel with excellent low-cycle fatigue performance and significant plastic deformation capacity. The processing shape includes, but is not limited to, X-shape, U-shape, dog-bone shape, or straight strip shape, which can be set according to the actual situation of the wall joint. For example, in this embodiment, the connector 3 is set as a long, ladder-shaped structure, and the length-to-width ratio of the connector 3 is greater than 6, making the connector 3 easy to bend and deform during an earthquake, resulting in good energy dissipation.

[0032] The tongue-and-groove design not only provides a precise positioning and alignment benchmark for adjacent precast wall panels, simplifying on-site installation, but also reserves a dedicated, protected installation space for connector 3 and helps guide deformation to concentrate in a predetermined energy-dissipating area under stress. Connector 3 is the core component for achieving the "low damage" and "energy dissipation" functions; its core functional position is located in the middle of the vertical joint between two adjacent precast wall panels, and the connection between connector 3 and the precast wall panel is flexible.

[0033] When a structure undergoes interstory deformation under horizontal loads such as earthquakes or strong winds, two adjacent precast wall panels will experience relative displacement (slippage or opening / closing). This relative displacement will force the energy-dissipating steel strip located in the middle of its joint to undergo reciprocating tensile, bending, or shear deformation. During this process, the steel absorbs and dissipates a large amount of energy input from the earthquake through its own elasto-plastic hysteretic deformation (large deformation after yielding).

[0034] Because the energy-dissipating steel strips act as "fuse" or "sacrificial units" in the structure, their design ensures that most of the inelastic deformation and damage occurs within the steel strips themselves. Through the yielding and energy dissipation of the steel strips, the forces and deformations transmitted to the main precast wall panels are effectively reduced and controlled. This significantly reduces irreparable damage to the precast wall panels themselves, such as cracking and crushing, protecting the main load-bearing structure and facilitating post-earthquake repair; typically, only the damaged steel strips need to be replaced.

[0035] The entire structure fully utilizes the advantages of prefabrication. Factory production of wall panels ensures quality, while the tongue-and-groove design simplifies on-site assembly and positioning. The centralized installation of energy-consuming connectors 3 in the joints facilitates inspection, maintenance, and replacement.

[0036] In this embodiment, the first prefabricated wall panel 1 is positioned above the second prefabricated wall panel 2, and the cross-section of the protrusion 21 is trapezoidal, resulting in better overall waterproofing performance. For example, with the ground as a reference, the second prefabricated wall panel 2 is placed on the ground with the protrusion 21 facing upwards, and the recess 11 of the first prefabricated wall panel 1 is positioned towards the protrusion 21, thus placing the first prefabricated wall panel 1 on the second prefabricated wall panel 2.

[0037] Please refer to Figure 2 Both the first precast wall panel 1 and the second precast wall panel 2 are provided with embedded rods 4, which are arranged along the joint direction; for example... Figure 3 As shown, the connector 3 is provided with a pair of connecting holes 31 along its length, and the pair of connecting holes 31 are respectively connected to the embedded rods 4 on the first precast wall panel 1 and the embedded rods 4 on the second precast wall panel 2.

[0038] Please refer to Figure 4 The embedded member 4 includes a bolt 41 and a nut 42; the bolt 41 is disposed within the first precast wall panel 1 and the second precast wall panel 2; the nut 42 connects the bolt 41 and the connecting member 3. Figure 4 As shown, the middle prefabricated wall panel is provided with both a recessed portion 11 and a protruding portion 21, meaning that the wall can be formed by multiple sets of prefabricated wall panels. The prefabricated wall panel located between the first prefabricated wall panel 1 and the second prefabricated wall panel 2 is connected to the adjacent prefabricated wall panels end to end through the recessed portion 11 and the protruding portion 21, and then connected to the second prefabricated wall panel 2 at the bottom and the first prefabricated wall panel 1 at the top, thereby forming a complete wall panel structure.

[0039] Another embodiment of the present invention provides a construction method for a prefabricated embedded wall panel connection structure, used for the preparation of the prefabricated embedded wall panel connection structure as described above, the method comprising: S1. Prepare a first precast wall panel 1 with a recessed portion 11 and a second precast wall panel 2 with a protruding portion 21; for example, by forming the first precast wall panel 1 and the second precast wall panel 2 in a mold using lightweight aggregate concrete, foamed concrete, aerated concrete, lightweight high-strength concrete, or lightweight functional concrete. It is also necessary to install embedded rods 4 within the first precast wall panel 1 and the second precast wall panel 2; that is, to pre-embed the embedded rods 4 in designated positions within the first precast wall panel 1 and the second precast wall panel 2 for positioning the connection; taking an embedded rod 4 including a bolt 41 as an example, the bolt 41 is pre-embedded within the first precast wall panel 1 and the second precast wall panel 2.

[0040] S2. Prepare a connector 3 that matches the length of the first precast wall panel 1 and the second precast wall panel 2; and form a connecting hole on the connector 3 corresponding to the embedded rod 4. Taking the connector 3 as a steel bar as an example, make bolt 41 holes in the energy-consuming steel bar with the connector 3, and process it into the required shape. The horizontal distance of the bolt 41 holes is adapted to the embedded rod 4 in the first precast wall panel 1 and the second precast wall panel 2.

[0041] S3. The recessed portion 11 of the first precast wall panel 1 is spliced ​​with the protruding portion 21 of the second precast wall panel 2. When the wall is formed by multiple sets of precast wall panels, the precast wall panel disposed between the first precast wall panel 1 and the second precast wall panel 2 is connected end to end to the adjacent precast wall through the recessed portion 11 and the protruding portion 21, and then connected to the second precast wall panel 2 at the bottom and the first precast wall panel 1 at the top, thereby forming a complete wall panel structure.

[0042] S4. Place the connector 3 at the joint between the first precast wall panel 1 and the second precast wall panel 2, and connect the connector 3 to both the first precast wall panel 1 and the second precast wall panel 2. That is, after fitting the connecting holes 31 on the connector 3 onto the bolts 41 of the first precast wall panel 1 and the second precast wall panel 2 respectively, connect the bolts 41 with nuts 42 to connect the connector 3 to the first precast wall panel 1 and the second precast wall panel 2, completing the assembly. In other optional embodiments, the connector 3 can be connected to the embedded rod 4 by welding.

[0043] Another embodiment of the present invention provides a building module with a prefabricated embedded wall panel connection structure, characterized in that it includes the prefabricated embedded wall panel connection structure as described above, and building structural components; after the prefabricated embedded wall panel connection structure is formed by the construction method of the prefabricated embedded wall panel connection structure described above, the prefabricated embedded wall panel connection structure is connected to the building structural components to form a building structure, such as a wall structure of the building structure.

[0044] In summary, the prefabricated embedded wall panel connection structure, construction method, and building module provided by this invention, employing a tongue-and-groove design, not only provides precise positioning and alignment benchmarks for adjacent prefabricated wall panels, simplifying on-site installation, but also reserves dedicated, protected installation space for energy-dissipating connectors. This helps guide deformation to concentrate in a predetermined energy-dissipating area under stress. During seismic action, when the main frame structure undergoes inter-story shear deformation, lateral misalignment occurs between adjacent prefabricated wall panels. This misalignment causes bending deformation in the connectors, thus enabling them to dissipate energy. By absorbing the energy deformation during the seismic process, the connectors release shear force in advance, thereby consuming seismic energy and reducing seismic damage to the main structure. This results in low or even no damage to the prefabricated wall panels after an earthquake, requiring only connector replacement. Because the connectors act as sacrificial units, their design ensures that most of the inelastic deformation and damage occurs within the connectors themselves. Through the yielding and energy dissipation of the connectors, the force and deformation transmitted to the main precast wall panel are effectively reduced and controlled; this significantly reduces irreparable damage such as cracking and crushing of the precast wall panel itself, protects the main load-bearing structure, and facilitates post-earthquake repair, requiring only the replacement of damaged connectors.

[0045] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A prefabricated embedded wall panel connection structure, characterized in that, include: The first precast wall panel has a recessed portion at one end; The second precast wall panel has a protrusion at one end that matches the recessed portion; A connector is provided along the joint between the first precast wall panel and the second precast wall panel; and the connector is connected to the first precast wall panel and the second precast wall panel respectively.

2. The prefabricated embedded wall panel connection structure according to claim 1, characterized in that, Both the first precast wall panel and the second precast wall panel are provided with embedded rods, which are arranged along the joint direction; The connector is provided with a pair of connecting holes along its length, and the pair of connecting holes are respectively connected to the embedded rods on the first precast wall panel and the embedded rods on the second precast wall panel.

3. The prefabricated embedded wall panel connection structure according to claim 2, characterized in that, The embedded rods include bolts and nuts; The bolts are disposed within the first precast wall panel and the second precast wall panel; The nut connects the bolt and the connector.

4. The prefabricated embedded wall panel connection structure according to claim 1, characterized in that, The first precast wall panel is disposed above the second precast wall panel.

5. The prefabricated embedded wall panel connection structure according to claim 1, characterized in that, The connector is elongated and has an aspect ratio greater than 6.

6. The prefabricated embedded wall panel connection structure according to claim 1, characterized in that, The cross-section of the protrusion is trapezoidal.

7. A construction method for a prefabricated embedded wall panel connection structure, characterized in that, The method for preparing a prefabricated embedded wall panel connection structure as described in any one of claims 1-6 includes: Prepare a first precast wall panel with recesses and a second precast wall panel with protrusions; Prepare connectors that match the lengths of the first and second precast wall panels; The recessed part of the first prefabricated wall panel is spliced ​​with the protruding part of the second prefabricated wall panel; The connector is placed at the joint between the first precast wall panel and the second precast wall panel, and the connector is connected to the first precast wall panel and the second precast wall panel.

8. The construction method of a prefabricated embedded enclosure wall panel connection structure according to claim 7, characterized in that, The preparation of the first prefabricated wall panel with recesses and the second prefabricated wall panel with protrusions includes: Embedded members are installed in the first precast wall panel and the second precast wall panel; The preparation of the connector that matches the length of the first precast wall panel and the second precast wall panel includes: A connection hole corresponding to the embedded rod is formed on the connector.

9. A construction method for a prefabricated embedded enclosure wall panel connection structure according to claim 8, characterized in that, The preparation of the first prefabricated wall panel with recesses and the second prefabricated wall panel with protrusions includes: Bolts are pre-embedded in the first precast wall panel and the second precast wall panel; The step of connecting the connector to the first precast wall panel and the second precast wall panel includes: The bolt and the connector are connected by a nut.

10. The construction method of a prefabricated embedded enclosure wall panel connection structure according to claim 7, characterized in that, The preparation of the first prefabricated wall panel with recesses and the second prefabricated wall panel with protrusions includes: The first precast wall panel and the second precast wall panel are formed by using lightweight aggregate concrete, foamed concrete, aerated concrete, lightweight high-strength concrete or lightweight functional concrete.

11. A building module with a prefabricated embedded enclosure wall panel connection structure, characterized in that, Includes the prefabricated embedded wall panel connection structure as described in any one of claims 1-6, and building structural components; The prefabricated embedded wall panel connection structure is connected to the building structural components to form the building structure.

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