Slidable flexible connection node of upper hanging type precast concrete wall plate

Abstract

The invention relates to a slidable flexible connection node of an upper hanging type prefabricated concrete wallboard, the slidable flexible connection node is applied to connection between prefabricated wallboards or between prefabricated wallboards and a main body structure, and the slidable flexible connection node comprises a connection reinforcing steel bar installation component which comprises a first installation part and a second installation part which are perpendicular to each other, the first fastening assembly comprises a first connecting piece and a first locking piece connected to the first connecting piece, the first connecting piece penetrates through the sliding hole and is fixed to the prefabricated wallboard, the first mounting part slides relative to the first connecting piece through the sliding hole, and the first locking piece is fastened to the first connecting piece and abuts against the first mounting part; and the second fastening assembly comprises a second connecting piece and a second locking piece connected to the second connecting piece, the second connecting piece is pre-buried in the main body structure or the prefabricated wall panel of the next layer, the second connecting piece can be arranged in the mounting hole in a penetrating mode, and the second locking piece is fastened to the second connecting piece and abuts against the second mounting part.

Description

Technical Field

[0001] The present application relates to the field of installation and connection of prefabricated wall panels, and in particular to a slidable flexible connection node of a top-hung prefabricated concrete wall panel. Background Art

[0002] Precast concrete wall panels are suitable for prefabricated building exterior wall projects. As green components of prefabricated buildings, they can simplify the construction process, be flexibly installed, and effectively adapt to the deformation of the main structure. In terms of connection methods, wall panels and main structures are divided into two categories: line connection and point connection. Line connection is achieved by casting and effectively anchoring the entire row of steel bars to form a rigid fixation; point connection is mainly achieved by connecting at several specific points. Point connection is usually designed as a flexible connection. Flexible point connection technology can be divided into two categories: complex connection and simple connection.

[0003] However, although complex connections can adapt to earthquake deformation, they are cumbersome to construct, difficult to stabilize performance, and may even fail. Simple connections (such as grouting sleeve bolts, etc.), although easy to construct, lose the original intention of flexible connection and cannot adapt to the horizontal deformation of the main structure. When facing an earthquake, it may aggravate the structural stress, causing unexpected damage or even destruction to the main structure under the action of the earthquake. Summary of the invention

[0004] The embodiment of the present application discloses a slidable flexible connection node, which is combined with connecting steel bars when connecting prefabricated wall panels to the main structure. It can effectively cope with earthquake deformation and ensure the safety of the building under extreme conditions such as earthquakes.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present application discloses a slidable flexible connection node, which is applied to a building. The building includes multiple layers of spliced ​​walls arranged in the height direction, and each layer of the spliced ​​walls includes a main structure and a prefabricated wall panel. The slidable flexible connection node includes: a mounting member, including a first mounting portion and a second mounting portion perpendicular to each other, the first mounting portion is used to abut the prefabricated wall panel, and the second mounting portion is used to abut the main structure or the second mounting portion is used to abut the prefabricated wall panel of the next layer or the main structure; a sliding hole is arranged in the first mounting portion; a mounting hole is arranged in the second mounting portion; a first fastening assembly includes a first connecting member and a first locking member movably connected to the first connecting member, the first connecting member is inserted into the sliding hole and fixed to the prefabricated wall panel, the first mounting portion slides relative to the first connecting member through the sliding hole, the first locking member is fastened to the first connecting member and abuts against the first mounting portion; a second fastening assembly includes a second connecting member and a second locking member movably connected to the second connecting member, the second connecting member is pre-buried in the main structure or the prefabricated wall panel of the next layer, the second connecting member can be inserted into the mounting hole, the second locking member is fastened to the second connecting member and abuts against the second mounting portion; a sliding plate assembly, a sliding plate assembly is arranged between the first locking member and the mounting component and between the second locking member and the mounting component.

[0006] In some embodiments, the slidable flexible connection node also includes: an embedment, the embedment includes a hollow cavity embedment embedded in the prefabricated wall panel, and the extension direction of the embedment is perpendicular to the extension direction of the sliding hole; the first fastening assembly also includes a third locking member, the third locking member is located in the hollow cavity of the embedment, the first connecting member passes through the prefabricated wall panel and the sliding hole, and is fastened to the third locking member to connect the embedment to the first mounting portion.

[0007] In some embodiments, the mounting hole is an oblong hole, and the second mounting portion can slide relative to the second connecting member through the mounting hole.

[0008] In some embodiments, the first mounting portion abuts against the prefabricated wall panel, the first connecting member is arranged on the side of the prefabricated wall panel, the sliding hole extends vertically along the surface of the prefabricated wall panel, and the embedded member extends horizontally along the surface of the prefabricated wall panel; the second mounting portion abuts against the main structure, and the second connecting member is embedded in the side of the main structure.

[0009] In some embodiments, the first mounting portion abuts against the prefabricated wall panel, the first connecting member is arranged at the bottom of the prefabricated wall panel, the sliding hole extends horizontally along the surface of the prefabricated wall panel, and the embedded member extends vertically along the surface of the prefabricated wall panel; the second mounting portion abuts against the top of the prefabricated wall panel of the next layer or the top of the main structure, and the second connecting member is embedded in the prefabricated wall panel of the next layer or the main structure.

[0010] In some embodiments, when the side of the prefabricated wall panel is exposed to air or the slidable flexible connection node at the bottom of the prefabricated wall panel meets preset conditions, the side of the prefabricated wall panel is not provided with a slidable flexible connection node; or when the side of the prefabricated wall panel is a prefabricated wall column, the side of the prefabricated wall panel is not provided with a slidable flexible connection node, and the side of the prefabricated wall panel is connected to the main structure through a grouting sleeve.

[0011] In some embodiments, the connection between the prefabricated wall panels and the main structure may be provided with connecting steel bars, which are arranged on the top of the prefabricated wall panels of each layer of the spliced ​​wall, and are connected to the main structure.

[0012] In some embodiments, the length of the sliding hole is related to the diameter of the first connecting member, the interlayer deformation or harmful interlayer deformation of the prefabricated wall panel, and the construction and installation deviation of the prefabricated wall panel along the horizontal direction within the surface; or the width of the sliding hole is positively correlated with the diameter of the first connecting member; or the length of the installation hole is related to the diameter of the second connecting member and the construction and installation deviation of the prefabricated wall panel along the out-of-plane direction of the prefabricated wall panel; or the width of the installation hole is related to the diameter of the second connecting member and the construction and installation deviation of the prefabricated wall panel along the horizontal direction within the surface.

[0013] In some embodiments, the length L1 of the sliding hole satisfies: L1≥D1+λ×Δ+2e1; or the width B1 of the sliding hole satisfies: B1≥D1+2; or the length L2 of the mounting hole satisfies: L2≥D2+2e2; or the length B2 of the mounting hole satisfies: B2 width B2≥D2+e1; wherein D1 is the diameter of the first connecting member, Δ is the interlayer deformation or harmful interlayer deformation of the prefabricated wall panel, λ is the magnification coefficient, e1 is the construction and installation deviation of the prefabricated wall panel along the horizontal direction within the surface, D2 is the diameter of the second connecting member, and e2 is the construction and installation deviation of the prefabricated wall panel along the out-of-plane direction of the prefabricated wall panel.

[0014] In some embodiments, the length of the embedment is related to the vertical construction deviation of the prefabricated wall panel in the plane of the outer diameter of the third locking member; or the width of the embedment is related to the outer diameter of the third locking member and the reserved gap between the third locking member and the embedment; or the depth of the embedment is related to the thickness of the third locking member and the reserved gap between the third locking member and the embedment.

[0015] In some embodiments, the length l1 of the embedment satisfies: l1≥c1+2e3+20; or the width b1 of the embedment satisfies: b1≥c1+2i; or the depth b2 of the embedment satisfies b2≥c2+i; wherein c1 is the outer diameter of the third locking member, i is the size of the reserved gap between the third locking member and the embedment, e3 is the vertical construction deviation of the prefabricated wall panel, and c2 is the thickness of the third locking member.

[0016] Compared with the prior art, the beneficial effects of this application are:

[0017] The slidable flexible connection node provided in the embodiment of the present application has construction flexibility and simple and reliable structural characteristics. The connection node connected by sliding effectively reduces the impact of the lateral stiffness generated when the prefabricated wall panel is connected to the main structure, thereby ensuring that the overall structure can maintain stability and safety when facing external forces such as wind loads and earthquakes, achieving coordinated deformation between the prefabricated wall panel and the main structure, avoiding stress concentration caused by construction errors, and further improving the overall performance and durability of the building structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of the connection between the prefabricated wall panel and the main structure provided in the embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structure of a prefabricated wall panel provided in an embodiment of the present application connected to a next layer of prefabricated wall panels;

[0021] Figure 3 A schematic diagram of the structure of the prefabricated wall panels connected to the main structure provided in the embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of a slidable flexible connection node provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the structure when the side of the prefabricated wall panel provided in the embodiment of the present application is not provided with a slidable flexible connection node;

[0024] Figure 6 for Figure 4 A cross-sectional view of the slidable flexible connection node along the AA direction;

[0025] Figure 7 for Figure 4 A cross-sectional view of a slidable flexible connection node along the BB direction;

[0026] Figure 8 A schematic diagram of a structure in which a slidable flexible connection node provided in an embodiment of the present application is connected to a main structure at the side of a prefabricated wall panel;

[0027] Fig. 9 for Figure 8 A cross-sectional view of a slidable flexible connection node along the CC direction;

[0028] Fig.10 for Figure 8 Cross-sectional view of the slidable flexible connection node along the DD direction.

[0029] Description of reference numerals:

[0030] 01-main structure; 02-prefabricated wall panel; 10-slidable flexible connection node; 101-installation component; 1011-first installation part; 1011a-sliding hole; 1012-second installation part; 1012a-installation hole; 102-first fastening assembly; 1021-first connecting member; 1022-first locking member; 1023-third locking member; 103-second fastening assembly; 1031-second connecting member; 1032-second locking member; 104-sliding plate assembly; 1041-first sliding plate; 1042-second sliding plate; 105-embedded member; 201-installation groove; 202-seal; 203-cover plate; 204-connecting steel bars. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] In this application, the terms "upper", "lower", "top", "bottom", "inner", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0033] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0034] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0036] In the field of building construction, prefabricated concrete wall panels are suitable for prefabricated building exterior wall projects. As green components of prefabricated buildings, prefabricated concrete wall panels are convenient to construct, flexible to install, and adaptable to the deformation of the main structure. In terms of connection methods, the connection methods between prefabricated wall panels and the main structure can be divided into two categories: line connection and point connection.

[0037] Line connection uses a whole row of steel bars cast in place and anchored to ensure the stability and reliability of the building. Point connection is achieved by connecting at several points to achieve flexible connection so that prefabricated wall panels can better absorb energy and disperse stress under the action of external forces such as earthquakes, thereby protecting the main structure from damage. Point connection technology can be divided into two categories: complex connection and simple connection.

[0038] However, although complex connections have the potential to resist earthquakes, the structure and construction process of complex connections are relatively complicated, which often makes it difficult to achieve the expected results, and may even cause connection failure due to improper construction. Simple connections such as grouting sleeve bolts, although simplifying the construction process, sacrifice the advantages of flexible connections to a certain extent, making it difficult for wall panels to effectively absorb horizontal deformation when facing extreme situations such as earthquakes. Instead, it may increase the stress burden of the building and pose a threat to the overall safety of the building.

[0039] In order to solve the above problems, the inventors studied the limitations of the existing prefabricated wall panel connection method, improved the existing prefabricated wall panel connection node, and designed a prefabricated wall panel connection method that can slide in the height direction and the horizontal direction. Based on this, the embodiment of the present application discloses a slidable flexible connection node, which can solve the problem of poor adaptive deformation ability of the traditional prefabricated wall panel connection.

[0040] The technical solution of the present application will be further described below in conjunction with embodiments and drawings.

[0041] See also Figures 1 to 5 , Figure 1 This is a schematic diagram of the structure of the connection between the prefabricated wall panel 02 and the main structure 01 provided in the embodiment of the present application. Figure 2 A schematic diagram of the structure of the prefabricated wall panel 02 provided in the embodiment of the present application connected to the lower prefabricated wall panel 02, Figure 3 This is a schematic diagram of the structure of the prefabricated wall panel 02 connected to the main structure 01 provided in the embodiment of the present application. Figure 4This is a schematic diagram of the structure of a slidable flexible connection node 10 provided in an embodiment of the present application. Figure 5 A schematic diagram of the structure when the side of the prefabricated wall panel 02 provided in the embodiment of the present application is not provided with a slidable flexible connection node 10. The embodiment of the present application discloses a slidable flexible connection node 10, which is applied to a building. The building includes multiple layers of spliced ​​walls arranged along the height direction, and each layer of the spliced ​​walls includes a main structure 01 and a prefabricated wall panel 02. The slidable flexible connection node 10 includes: a mounting member 101, including a first mounting portion 1011 and a second mounting portion 1012 perpendicular to each other, the first mounting portion 1011 is used to abut against the prefabricated wall panel 02, and the second mounting portion 1012 is used to abut against the main structure 01 or the second mounting portion is used for the prefabricated wall panel 02 of the next layer or the main structure 01; a sliding hole 1011a, which is provided in the first mounting portion 1011; a mounting hole 1012a, which is provided in the second mounting portion 1012; a first fastening assembly 102, including a first connecting member 1021 and a first locking member 1022 movably connected to the first connecting member 1021, and a second fastening member 1022 movably connected to the first connecting member 1021. A connecting member 1021 is passed through the sliding hole 1011a and fixed to the prefabricated wall panel 02, the first mounting portion 1011 slides relative to the first connecting member 1021 through the sliding hole 1011a, the first locking member 1022 is fastened to the first connecting member 1021 and abuts against the sliding plate assembly 104; the second fastening assembly 103 includes a second connecting member 1031 and a second locking member 1032 movably connected to the second connecting member 1031, the second connecting member 1031 is pre-buried in the main structure 01 or the prefabricated wall panel 02 of the next layer, the second connecting member 1031 can be passed through the mounting hole 1012a, the second locking member 1032 is fastened to the second connecting member 1031 and abuts against the second mounting portion 1012; the sliding plate assembly 104, the sliding plate assembly 104 is arranged between the first locking member 1022 and the mounting component 101, and between the second locking member 1032 and the mounting component 101.

[0042] The slidable flexible connection node is used to connect the prefabricated wall panel 02 and the main structure 01 or the next layer of prefabricated wall panel 02. The prefabricated wall panel 02 is standardized in the factory and is easy to install on the main structure 01, which reduces the workload during on-site construction and shortens the construction period of the building. A removable pad is set at the bottom of the prefabricated wall panel 02, and the pad at the bottom of the prefabricated wall panel 02 can be removed after the pouring is completed. The side and bottom of the prefabricated wall panel 02 are reserved with installation grooves 201 for accommodating the slidable flexible connection node 10.

[0043] When the slidable flexible connection node 10 is installed on the side of the prefabricated wall panel 02, in any floor of the building, a part of the slidable flexible connection node 10 is slidably connected to the side of the prefabricated wall panel 02, and another part of the slidable flexible connection node 10 is slidably connected to the side of the main structure 01. The prefabricated wall panel 02 is connected to the main structure 01 on the side of the prefabricated wall panel 02, and the main structure 01 on the side can be a main structure column or a main structure wall panel. When the side of the prefabricated wall panel 02 is exposed to air or the bottom edge connection of the prefabricated wall panel 02 meets the force and deformation requirements, the side can use a grouting sleeve or other structure instead of the slidable flexible connection node 10.

[0044] The slidable flexible connection node 10 allows the prefabricated wall panel 02 to slide vertically relative to the main structure 01 in the plane to accommodate the installation error generated during the installation of the prefabricated wall panel 02. Moreover, under the action of extreme dynamic loads such as earthquakes, the slidable flexible connection node 10 can allow the prefabricated wall panel 02 and the main structure 01 to slide vertically relative to each other along the plane, thereby reducing the overall seismic response of the building and protecting the building safety. The application of the slidable flexible connection node 10 between the prefabricated wall panel 02 and the main structure 01 improves the flexibility and accuracy of construction and installation, and further improves the structural safety and earthquake resistance.

[0045] The fine-tuning function of the slidable flexible connection node 10 along the out-of-plane direction of the prefabricated wall panel 02 mainly depends on the order of the construction process. If the slidable flexible connection node 10 at the bottom of the prefabricated wall panel 02 is fixed first, and the prefabricated wall panel 02 is fine-tuned along the out-of-plane direction of the prefabricated wall panel 02 through the slidable flexible connection node 10, the fine-tuning of the slidable flexible connection node 10 on the side relative to the main structure 01 can be cancelled, and a fixed connection can be adopted. If the slidable flexible connection node 10 on the side is installed first, the fine-tuning function of the slidable flexible connection node can be retained, so that the slidable flexible connection node 10 is slidably connected to the main structure 01 to adapt to the installation error of the prefabricated wall panel 02.

[0046] When the slidable flexible connection node 10 is installed at the bottom of the prefabricated wall panel 02, during the installation of the prefabricated wall panel 02, the installation position of the prefabricated wall panel 02 corresponds to different installation forms of the slidable flexible connection node 10 at the bottom of the prefabricated wall panel 02:

[0047] When the prefabricated wall panel 02 needs to be installed in the middle layer of the building, the first installation form of the slidable flexible connection node 10 at the bottom of the prefabricated wall panel 02 is: the prefabricated wall panel 02 is installed on the outside of the main structure 01, the slidable flexible connection node 10 is set at the bottom of the prefabricated wall panel 02, and the slidable flexible connection node 10 is connected to the prefabricated wall panel 02 of the next layer.

[0048] When the prefabricated wall panel 02 needs to be installed in the middle layer of a building, the second installation form of the slidable flexible connection node 10 at the bottom of the prefabricated wall panel 02 is: the prefabricated wall panel 02 is installed below the main structure 01, and the slidable flexible connection node 10 at the bottom of the prefabricated wall panel 02 is connected to the main structure 01.

[0049] When the prefabricated wall panel 02 needs to be installed on the bottom floor of the building, the prefabricated wall panel 02 is installed below the main structure 01, and the slidable flexible connection node 10 at the bottom of the prefabricated wall panel 02 is connected to the main structure 01. In the middle or top floor of the building, a part of the slidable flexible connection node 10 is slidably connected to the bottom of the prefabricated wall panel 02, and another part of the slidable flexible connection node 10 is connected to the prefabricated wall panel 02 or the main structure 01 of the next floor. In the bottom floor of the building, another part of the slidable flexible connection node 10 is connected to the main structure 01 of this floor, and the main structure 01 of this floor can be the base floor of the bottom floor.

[0050] When the slidable flexible connection node 10 is set at the bottom of the prefabricated wall panel 02, the sliding connection between the slidable flexible connection node 10 and the main structure 01 or the prefabricated wall panel 02 of the next layer allows the prefabricated wall panel 02 to be fine-tuned in the horizontal direction within the plane relative to the main structure 01 or the prefabricated wall panel 02 of the next layer, so as to adapt to the installation error generated during the installation of the prefabricated wall panel 02. Moreover, under the action of extreme dynamic loads such as earthquakes, the slidable flexible connection node 10 can allow relative sliding along the horizontal direction within the plane between the prefabricated wall panel 02 and the prefabricated wall panel 02 of the next layer or between the prefabricated wall panel 02 and the main structure 01, thereby reducing the overall seismic response of the building and protecting the safety of the building.

[0051] When installing the prefabricated wall panel 02, first use a crane or special lifting equipment to lift the prefabricated wall panel 02 to the installation position for joint processing, and install a seal 202 at the joint between the prefabricated wall panel 02 and the prefabricated wall panel 02 of the next layer or the joint between the prefabricated wall and the main structure 01. The seal 202 can be a sealant and a foamed polyethylene rod or other seals that can achieve a sealing effect. This embodiment does not limit this. The seal 202 can achieve the purpose of waterproofing and moisture-proofing the wall of the building, isolate the outside water from invading the joint between the prefabricated wall and the next layer of prefabricated wall or the joint between the prefabricated wall and the main structure 01, and protect the wall structure of the building from moisture erosion. The seal 202 can fill the joint gap to enhance the overall sealing and sound insulation effect of the building wall.

[0052] After the overall installation process is completed, a cover plate 203 can be added to the installation groove 201 of the prefabricated wall panel 02 for installing the slidable flexible connection node 10. The cover plate 203 can be set according to the size and shape of the installation groove 201. The cover plate 203 should have a certain strength and rigidity to withstand possible external forces. The cover plate 203 can be fixed to the installation groove 201 where the slidable flexible connection node 10 is installed using special glue, screws or other fixings. The cover plate 203 protects the slidable flexible connection node 10 in the installation groove 201 from external damage, prevents external forces from acting on the slidable flexible connection node 10 to affect the overall performance of the slidable flexible connection node 10, and the setting of the cover plate 203 improves the overall safety of the installation of the prefabricated wall panel 02.

[0053] See also Figure 6 , Figure 6 for Figure 4 A cross-sectional view of the slidable flexible connection node 10 along the AA direction. In some embodiments, each slidable flexible connection node 10 includes: a mounting member 101, including a first mounting portion 1011 and a second mounting portion 1012 perpendicular to each other, the first mounting portion 1011 is used to abut against the prefabricated wall panel 02, the second mounting portion 1012 is used to abut against the main structure 01 or the second mounting portion is used to abut against the prefabricated wall panel 02 of the next layer or the main structure 01; a sliding hole 1011a, provided in the first mounting portion 1011; a mounting hole 1012a, provided in the second mounting portion 1012; a first fastening assembly 102, including a first connecting member 1021 and a first locking member 1022 connected to the first connecting member 1021, the first connecting member 1011 is used to abut against the prefabricated wall panel 02, and the second mounting portion 1012 is used to abut against the main structure 01 of the next layer; 21 is passed through the sliding hole 1011a and fixed to the prefabricated wall panel 02, the first mounting portion 1011 slides relative to the first connecting member 1021 through the sliding hole 1011a, the first locking member 1022 is fastened to the first connecting member 1021 and abuts against the first mounting portion 1011; the second fastening assembly 103 includes a second connecting member 1031 and a second locking member 1032 connected to the second connecting member 1031, the second connecting member 1031 is pre-buried in the main structure 01 or the prefabricated wall panel 02 of the next layer, the second connecting member 1031 can be passed through the mounting hole 1012a, the second locking member 1032 is fastened to the second connecting member 1031 and abuts against the second mounting portion 1012.

[0054] The slidable flexible connection node 10 includes a mounting member 101, and the mounting member 101 has a first mounting portion 1011 and a second mounting portion 1012 that are perpendicular to each other. The specifications of the mounting member 101 can be determined based on the sizes of the first fastener, the second fastener, the sliding hole 1011a, and the mounting hole 1012a. The mounting member 101 can be a structure with two perpendicular mounting portions such as an angle steel or a channel steel, which is not limited in this embodiment.

[0055] The first mounting portion 1011 abuts against the prefabricated wall panel 02. When the prefabricated wall panel 02 needs to be installed in the middle layer of the building, the second mounting portion 1012 abuts against the main structure 01 or the prefabricated wall panel 02 of the next layer. When the prefabricated wall panel 02 needs to be installed in the bottom layer of the building, the second mounting portion 1012 abuts against the main structure 01. Thus, the prefabricated wall panel 02 and the main structure 01 or the prefabricated wall panel 02 of the next layer are perpendicular to each other and connected together through the mounting member 101, so that the prefabricated wall panel 02 can be slidably mounted.

[0056] The sliding hole 1011a is provided in the first mounting portion 1011. The sliding hole 1011a may be an oblong hole. The sliding hole 1011a may be adjusted according to the specific implementation situation, and this embodiment does not limit this. The extension of the sliding hole 1011a provides space for the sliding between the prefabricated wall panel 02 and the main structure 01 or the prefabricated wall panel 02 of the next layer, ensuring that there is a certain deformation space between the prefabricated wall panel 02 and the main structure 01 when an earthquake or the like occurs, thereby preventing the prefabricated wall panel 02 and the main structure 01 from being damaged due to the rigid connection.

[0057] The mounting hole 1012a can be constructed as a round hole or an oblong hole. The mounting hole 1012a is set in the second mounting portion 1012, and the number of the mounting holes 1012a can be set according to the specific situation of the installation of the prefabricated wall panel 02, which is not limited in this embodiment. The mounting hole 1012a is set as an oblong hole to provide space for sliding between the prefabricated wall panel 02 and the main structure 01 or the prefabricated wall panel 02 of the next layer in a direction perpendicular to the sliding hole 1011a. The mounting hole 1012a is set as an oblong hole to provide a certain installation moving position during the installation process of the prefabricated wall panel 02, which is convenient for adjusting the position of the prefabricated wall panel 02 during installation, and realizing more accurate and simple installation.

[0058] During the process of installing the prefabricated wall panel 02, if the slidable flexible connection node 10 at the bottom of the prefabricated wall panel 02 is installed first, the installation hole 1012a of the slidable flexible connection node 10 at the bottom of the prefabricated wall panel 02 is set as an oblong hole, which is used to install and adjust the prefabricated wall panel 02 along the outward direction of the prefabricated wall panel 02, and then the slidable flexible connection node 10 on the side of the prefabricated wall panel 02 is installed. Then, the connection between the slidable flexible connection node 10 on the side of the prefabricated wall panel 02 and the main structure 01 can be replaced by using pre-embedded second connecting parts 1031, and pre-embedded anchor bars can be used instead, and the installation hole 1012a of the slidable flexible connection node 10 on the side of the prefabricated wall panel 02 can be set as a round hole.

[0059] The first fastening assembly 102 includes a first connecting member 1021 and a first locking member 1022 sleeved on the outside of the first connecting member 1021, and the first connecting member 1021 and the first locking member 1022 are locked by threads. The first connecting member 1021 is inserted into the sliding hole 1011a and fixes the prefabricated wall panel 02. The number of the first fastening assemblies 102 corresponds to the number of the sliding holes 1011a. The first locking member 1022 is fastened to the first connecting member 1021 and abuts against the first mounting portion 1011. The fastening cooperation between the first locking member 1022 and the first connecting member 1021 can slide and fix the first mounting portion 1011 on the prefabricated wall panel 02, preventing the mounting member 101 from falling off the prefabricated wall panel 02.

[0060] The second fastening assembly 103 includes a second connecting member 1031 and a second locking member 1032 sleeved outside the second connecting member 1031, and the second connecting member 1031 and the second locking member 1032 are screw-locked. The second connecting member 1031 and the second locking member 1032 can be provided in two, and the number of the mounting holes 1012a corresponds to the number of the second connecting members 1031.

[0061] The second connecting member 1031 is embedded in the main structure 01 or the prefabricated wall panel 02 of the next layer, forming a more stable connection between the second connecting member 1031 and the prefabricated wall panel 02 or the main structure 01. The second connecting member 1031 is inserted into the mounting hole 1012a, and the second locking member 1032 is fastened to the second connecting member 1031 and abuts against the second mounting portion 1012. The fastening cooperation between the second locking member 1032 and the second connecting member 1031 can fix the second mounting portion 1012 on the main structure 01 or the prefabricated wall panel 02 of the next layer, preventing the mounting component from shaking or falling off under the action of external force.

[0062] See also Figure 7 , Figure 7 for Figure 4 In some embodiments, the slidable flexible connection node 10 further includes a sliding plate assembly 104, wherein the sliding plate assembly 104 is disposed between the first locking member 1022 and the mounting member 101 and between the second locking member 1032 and the mounting member 101.

[0063] The sliding plate assembly 104 is disposed between the first locking member 1022, the second locking member 1032 and the mounting member 101, and can disperse the pressure exerted on the mounting member 101 when the first locking member 1022 or the second locking member 1032 is tightened. When the first locking member 1022 or the second locking member 1032 is tightened, a downward force is applied to the mounting member 101. Without the sliding plate assembly 104, this force may be concentrated on the contact surface between the first locking member 1022 or the second locking member 1032 and the mounting member 101, resulting in stress concentration and possible damage. The presence of the sliding plate assembly 104 can disperse the force exerted by the first locking member 1022 or the second locking member 1032 to a larger area, thereby reducing stress concentration.

[0064] The sliding plate assembly 104 can act as a buffer for the first locking member 1022 or the second locking member 1032 when the first connecting member 1021 or the second connecting member 1031 slides in the corresponding sliding hole 1011a or the mounting hole 1012a, so that excessive friction will not occur between the first locking member 1022 or the second locking member 1032 and the mounting component 101, resulting in the prefabricated wall panel 02 being unable to slide relative to the main structure 01.

[0065] Optionally, the sliding plate assembly 104 may include a polytetrafluoroethylene plate, a rubber sliding plate assembly 104 or other components that can achieve a buffering effect, which is not limited in this embodiment.

[0066] Optionally, the thickness of the sliding plate assembly 104 can generally be 1.5 to 3.0 mm, and can be selected according to the specific conditions of the construction site and the prefabricated wall panel 02 .

[0067] In this way, the slidable flexible connection node provided in the embodiment of the present application has construction flexibility and simple and reliable structural characteristics. The slidable flexible connection node connected by sliding effectively reduces the impact of the lateral stiffness generated when the prefabricated wall panel 02 is connected to the main structure 01, thereby ensuring that the overall structure can maintain stability and safety when facing external forces such as wind loads and earthquakes, achieving coordinated deformation between the prefabricated wall panel 02 and the main structure 01, avoiding stress concentration caused by construction errors, and further improving the overall performance and durability of the building structure.

[0068] like Figure 6As shown, in some embodiments, the slidable flexible connection node 10 also includes: an embedding member 105, wherein the embedding member 105 includes a hollow cavity, the embedding member 105 is embedded in the prefabricated wall panel 02, and the extension direction of the embedding member 105 is perpendicular to the extension direction of the sliding hole 1011a; the first fastening component 102 also includes a third locking member 1023, and the third locking member 1023 is located in the hollow cavity of the embedding member 105, and the first connecting member 1021 passes through the prefabricated wall panel 02 and one end of the sliding hole 1011a, and is fastened to the third locking member 1023 to connect the embedding member 105 to the first mounting portion 1011.

[0069] The insert 105 is embedded in the prefabricated wall panel 02, and the extension direction of the insert 105 is perpendicular to the extension direction of the sliding hole 1011a, so that the first fastening component 102 can slide in the insert 105 along the extension direction of the insert 105, allowing more flexible adjustment space. Optionally, anchor bars can be provided on the outside of the slideway, and the anchor bars are also buried in the prefabricated wall panel 02, so as to improve the connection strength between the insert 105 and the prefabricated wall panel 02.

[0070] The first fastening assembly 102 further includes a third locking member 1023, which is disposed inside the insert 105. The first connecting member 1021 passes through the sliding hole 1011a on the prefabricated wall panel 02 and is connected to the third locking member 1023 located in the insert 105. The third locking member 1023 provides a fastening force, and the combination of the insert 105 and the third locking member 1023 makes the slidable flexible connection node more stable, ensuring that the connection between the first connecting member 1021 and the insert 105 can withstand greater external forces.

[0071] The first connecting member 1021 can drive the third locking member 1023 to slide in the insert 105 along the extension direction of the insert 105, thereby allowing a certain degree of relative movement between the prefabricated wall panel 02 and the main structure 01 or the prefabricated wall panel 02 of the next layer to absorb structural deformation caused by external forces or allow slight displacement. When natural disasters such as earthquakes occur, the damage to the overall structure of the building can be reduced.

[0072] In some embodiments, the mounting hole 1012 a is an oblong hole, and the second mounting portion 1012 can slide relative to the second connecting member 1031 through the mounting hole 1012 a.

[0073] The mounting hole 1012a can be constructed as an oblong hole. The mounting hole 1012a is provided in the second mounting portion 1012, and the extending direction of the mounting hole 1012a is perpendicular to the extending direction of the sliding hole 1011a. The mounting hole 1012a provides space for the sliding between the prefabricated wall panel 02 and the main structure 01 or the prefabricated wall panel 02 of the next layer in a direction perpendicular to the sliding hole 1011a. The mounting hole 1012a can provide a certain installation moving position during the installation process of the prefabricated wall panel 02, which is convenient for adjusting the position of the prefabricated wall panel 02 during installation, and realizing more accurate and simple installation.

[0074] See also Figure 8 , Fig. 9 and Fig.10 , Figure 8 This is a schematic diagram of the structure of the slidable flexible connection node 10 provided in the embodiment of the present application connected to the main structure 01 at the side. Fig. 9 for Figure 8 A cross-sectional view of the slidable flexible connection node 10 along the CC direction, Fig.10 for Figure 8 A cross-sectional view of the slidable flexible connection node 10 along the DD direction in FIG. In some embodiments, the first mounting portion 1011 abuts against the prefabricated wall panel 02, the first connecting member 1021 is disposed on the side of the prefabricated wall panel 02, the sliding hole 1011a extends vertically in the plane of the prefabricated wall panel 02, and the embedded member 105 extends horizontally in the plane of the prefabricated wall panel 02; the second mounting portion 1012 abuts against the main structure 01, the second connecting member 1031 is embedded in the side of the main structure 01, and the mounting hole 1012a extends out of the plane of the prefabricated wall panel 02.

[0075] In any layer of a building, when the slidable flexible connection node 10 is installed on the side of the prefabricated wall panel 02, the first connection member 1021 is arranged on the side of the prefabricated wall panel 02, the sliding hole 1011a extends vertically in the plane of the prefabricated wall panel, the extension direction of the insert 105 is perpendicular to the extension direction of the sliding hole 1011a, and the insert 105 extends horizontally in the plane of the prefabricated wall panel 02. The sliding hole 1011a installed on the slidable flexible connection node 10 on the side of the prefabricated wall panel 02 can allow the prefabricated wall panel 02 and the main structure 01 to slide vertically in the plane. The extension of the insert 105 in the horizontal direction in the plane can cause the prefabricated wall panel 02 and the main structure 01 to slide horizontally in the plane. In this way, adaptive deformation can be better performed to cope with the occurrence of earthquakes and other situations that cause damage to the building.

[0076] The second mounting portion 1012 abuts against the side of the main structure 01, the second connecting member 1031 is embedded in the main structure 01, and the mounting hole 1012a is set as an oblong hole and extends along the outward direction of the prefabricated wall panel 02 to allow the prefabricated wall panel 02 and the main structure 01 to slide along the outward direction of the prefabricated wall panel 02, thereby achieving the purpose of adjusting the inner and outer installation positions when installing the prefabricated wall panel 02.

[0077] Please refer to Figure 4 and Figure 7 In some embodiments, the first mounting portion 1011 abuts against the embedding member 105, the first connecting member 1021 is arranged at the bottom of the prefabricated wall panel 02, the sliding hole 1011a extends in the horizontal direction within the surface of the prefabricated wall panel 02, and the embedding member 105 extends in the vertical direction within the surface of the prefabricated wall panel 02; the second mounting portion 1012 abuts against the top of the prefabricated wall panel 02 of the next layer or the top of the main structure 01, the second connecting member 1031 is pre-buried in the prefabricated wall panel 02 of the next layer or the main structure 01, and the mounting hole 1012a extends in the outward direction of the prefabricated wall panel 02.

[0078] When the slidable flexible connection node 10 is installed at the bottom of the prefabricated wall panel 02 through the insert 105, the first connection member 1021 is set at the bottom of the prefabricated wall panel 02, the sliding hole 1011a extends in the horizontal direction of the plane of the prefabricated wall panel 02, the extension direction of the insert 105 is perpendicular to the extension direction of the sliding hole 1011a, and the insert 105 extends in the vertical direction of the plane of the prefabricated wall panel 02. The sliding hole 1011a installed on the slidable flexible connection node 10 at the bottom of the prefabricated wall panel 02 can allow the prefabricated wall panel 02 and the main structure 01 to slide in the horizontal direction in the plane. The vertical extension of the insert 105 in the plane can cause the prefabricated wall panel 02 and the main structure 01 to slide in the vertical direction in the plane. In this way, better adaptive deformation can be performed to cope with the occurrence of situations that affect the building, such as earthquakes.

[0079] When the prefabricated wall panel 02 needs to be installed in the middle layer of the building, the second mounting portion 1012 abuts against the top of the main structure 01 or the top of the prefabricated wall panel 02 of the next layer, and the second connecting member 1031 is embedded in the main structure 01 or the prefabricated wall panel 02 of the next layer. The mounting hole 1012a is set as an oblong hole and extends along the out-of-plane direction of the prefabricated wall panel 02 to allow the prefabricated wall panel 02 and the main structure 01 or the prefabricated wall panel 02 of the next layer to slide along the out-of-plane direction, thereby achieving the purpose of adjusting the inner and outer installation positions when installing the prefabricated wall panel 02.

[0080] When the prefabricated wall panel 02 needs to be installed on the ground floor of a building, the second mounting portion 1012 abuts against the top of the main structure 01, the second connecting member 1031 is embedded in the main structure 01, and the mounting hole 1012a extends along the out-of-plane direction of the prefabricated wall panel 02 to allow sliding between the prefabricated wall panel 02 and the main structure 01 along the out-of-plane direction, thereby achieving the purpose of adjusting the inner and outer installation positions when installing the prefabricated wall panel 02.

[0081] In some embodiments, a connecting steel bar 204 is disposed on the top of the prefabricated wall panel 02 . The connecting steel bar 204 is disposed on the top of the prefabricated wall panel 02 of each layer of the spliced ​​wall, and the connecting steel bar 204 is connected to the main structure 01 .

[0082] The top of the prefabricated wall panel 02 and the main structure 01 can be installed in different ways: when the prefabricated wall panel 02 is installed outside the main structure 01, the connecting steel bars 204 between the prefabricated wall panel 02 and the main structure 01 are installed in an out-of-plane direction, such as Figure 1 When the prefabricated wall panel 02 is installed below the main structure 01, the connecting steel bars 204 between the prefabricated wall panel 02 and the main structure 01 are installed in a vertical connection manner, such as Figure 2 shown.

[0083] The connecting steel bars 204 between the prefabricated wall panels 02 and the main structure 01 provide a guarantee for the stability, safety and durability of the overall building structure. The connecting steel bars 204 between the top of the prefabricated wall panels 02 and the main structure 01 need to have sufficient rigidity and stability in the vertical direction to resist the horizontal load caused by changes in the external environment (such as wind force, earthquake waves, etc.).

[0084] Optionally, high-strength steel bars may be used as the connecting steel bars 204, and the diameter, quantity and anchoring depth of the steel bars may be determined by calculation to ensure that the connecting steel bars 204 can maintain the stability of the overall structure of the building when an external force is applied. For example, special steel bars such as ribbed steel bars or threaded steel bars may be used to enhance the anchoring effect, and structural measures such as reinforcing bars or steel plates may be provided at the connecting parts to improve the local bearing capacity.

[0085] In some embodiments, the sliding plate assembly 104 also includes: a first sliding plate 1041, which is arranged between the mounting member 101 and the first locking member 1022, the first sliding plate 1041 abuts against the first mounting portion 1011, and / or the first sliding plate 1041 is arranged between the second locking member 1032 and the mounting member 101; a second sliding plate 1042, which is arranged between the first sliding plate 1041 and the first locking member 1022, and the second sliding plate 1042 abuts against the first locking member 1022.

[0086] When the prefabricated wall panel 02 is deformed, the first sliding plate 1041 and the second sliding plate 1042 can allow relative displacement between the first mounting portion 1011 and the mounting member 101, thereby achieving a sliding connection effect.

[0087] In some embodiments, the length of the sliding hole 1011a is related to the diameter of the first connecting member 1021, the interlayer deformation or harmful interlayer deformation of the prefabricated wall panel 02, and the construction and installation deviation of the prefabricated wall panel 02 along the horizontal direction within the surface; or the width of the sliding hole 1011a is positively correlated with the diameter of the first connecting member 1021; or the length of the mounting hole 1012a is related to the diameter of the second connecting member 1031 and the construction and installation deviation of the prefabricated wall panel 02 along the direction perpendicular to the prefabricated wall panel 02; or the width of the mounting hole 1012a is related to the diameter of the second connecting member 1031 and the construction and installation deviation of the prefabricated wall panel 02 along the horizontal direction within the surface.

[0088] The length of the sliding hole 1011a is related to the diameter of the first connecting member 1021, which is a basic parameter for determining the length of the sliding hole 1011a. The length of the sliding hole 1011a determines the sliding space of the first mounting portion 1011 relative to the first connecting member 1021 through the sliding hole 1011a.

[0089] Meanwhile, the length of the sliding hole 1011a is related to the interlayer deformation or harmful interlayer deformation of the prefabricated wall panel 02. The prefabricated wall panel 02 may be deformed due to various factors during use. The length design of the sliding hole 1011a and the mounting hole 1012a also needs to consider the deformation coefficient of the wall to ensure that the connector can still maintain a stable connection when the wall is deformed.

[0090] In addition, the length of the sliding hole 1011a is related to the construction and installation deviation of the prefabricated wall panel 02 along the horizontal direction in the plane, and the installation deviation during the construction process is inevitable. The length design of the sliding hole 1011a needs to have a certain fault tolerance to cope with the influence of the construction and installation deviation on the slidable flexible connection node 10.

[0091] Therefore, the length of the sliding hole 1011a needs to comprehensively consider three parameters: the diameter of the first connecting member 1021, the interlayer deformation or harmful interlayer deformation of the prefabricated wall panel 02, and the construction and installation deviation of the prefabricated wall panel 02 along the horizontal direction within the surface.

[0092] The width of the sliding hole 1011a is positively correlated with the diameter of the first connecting member 1021, and the diameter of the first connecting member 1021 is a basic parameter for determining the width of the sliding hole 1011a. The width of the sliding hole 1011a should generally be slightly larger than the diameter of the first connecting member 1021 to ensure that the first connecting member 1021 can smoothly pass through the sliding hole 1011a and have a certain amount of sliding adjustment space.

[0093] The length of the mounting hole 1012a is related to the diameter of the second connecting member 1031, which is a basic parameter for determining the size of the mounting hole 1012a. The length of the mounting hole 1012a determines the sliding space of the second mounting portion 1012 relative to the second connecting member 1031 through the mounting hole 1012a.

[0094] Meanwhile, the length of the mounting hole 1012a is related to the vertical installation deviation of the prefabricated wall panel 02, and the installation deviation during the construction process is inevitable. The length design of the mounting hole 1012a needs to have a certain fault tolerance to cope with the influence of the construction and installation deviation on the slidable flexible connection node 10.

[0095] Therefore, the length of the installation hole 1012a needs to comprehensively consider the diameter of the second connecting member 1031 and the construction and installation deviation of the prefabricated wall panel 02 in the vertical direction.

[0096] The width of the mounting hole 1012a should generally be slightly larger than the diameter of the second connecting member 1031 to ensure that the second connecting member 1031 can smoothly pass through the mounting hole 1012a and have a certain amount of slidable adjustment space.

[0097] At the same time, the width of the mounting hole 1012a is related to the construction and installation deviation of the prefabricated wall panel 02 along the horizontal direction in the plane, and the installation deviation during the construction process is inevitable. The width design of the mounting hole 1012a needs to have a certain fault tolerance to cope with the influence of the construction and installation deviation on the slidable flexible connection node 10.

[0098] Therefore, the width of the installation hole 1012a needs to comprehensively consider the diameter of the second connecting member 1031 and the construction and installation deviation of the prefabricated wall panel 02 along the horizontal direction within the plane.

[0099] In some embodiments, the length L1 of the sliding hole 1011a satisfies: L1≥D1+λxΔ+2e1, wherein D1 is the diameter of the first connecting member 1021, Δ is the interlayer deformation or harmful interlayer deformation of the prefabricated wall panel 02, λ is the magnification coefficient, and e1 is the construction and installation deviation of the prefabricated wall panel 02 along the horizontal direction within the plane; or the width B1 of the sliding hole 1011a satisfies: B1≥D1+2, wherein D2 is the diameter of the second connecting member 1031; the length L2 of the mounting hole 1012a satisfies: L2≥D2+2e2; the length B2 of the mounting hole 1012a satisfies: B2 width B2≥D2+e1, and e2 is the construction and installation deviation of the prefabricated wall panel 02 along the direction perpendicular to the prefabricated wall panel 02.

[0100] The maximum interlayer deformation or harmful interlayer deformation Δ is determined according to the horizontal wind load and earthquake action of the main structure 01. The length of the sliding hole 1011a on the bottom edge connection installation component 101 of the wall panel is determined according to the maximum interlayer deformation or harmful deformation Δ: L1≥D1+λxΔ+2e1, where D1 is the diameter of the first connection member 1021, generally 6 to 12 mm, Δ is the maximum interlayer deformation or harmful interlayer deformation, λ is the magnification factor, which can be 1.0 to 1.2, and e1 is the horizontal construction and installation deviation within the wall panel surface. The width of the sliding hole 1011a B1≥D1+2.

[0101] The length L2≥D2+2e2 and the width B2≥D2+e1 of the mounting hole 1012a, wherein D2 is the diameter of the second connecting member 1031 embedded in the main structure 01 or the prefabricated wall panel 02 of the next layer, and e2 is the construction and installation deviation of the prefabricated wall panel 02 in a direction perpendicular to the prefabricated wall panel 02.

[0102] Through calculation, it can be ensured that the sliding hole 1011a and the mounting hole 1012a can maintain sufficient strength and stability when subjected to external force, thereby avoiding excessive stress concentration or damage.

[0103] In some embodiments, the length of the embedded component 105 is related to the outer diameter of the third locking component 1023 and the vertical construction deviation of the prefabricated wall panel 02; or the width of the embedded component 105 is positively correlated with the outer diameter of the third locking component 1023. The depth of the embedded component 105 is related to the thickness of the third locking component 1023 and the reserved gap between the third locking component 1023 and the embedded component 105.

[0104] The length design of the insert 105 needs to comprehensively consider the outer diameter of the third locking member 1023 and the vertical construction deviation of the prefabricated wall panel 02. Specifically, the insert 105 should be long enough to accommodate the third locking member 1023, and ensure that when the prefabricated wall panel 02 has a vertical construction deviation, the third locking member 1023 can still move freely in the insert 105 and maintain a stable connection. At the same time, the length of the insert 105 is related to the construction and installation deviation of the prefabricated wall panel 02 in the vertical direction, and the installation deviation during the construction process is inevitable. The length design of the insert 105 needs to have a certain fault tolerance to cope with the impact of the construction and installation deviation on the slidable flexible connection node 10. The width of the insert 105 is positively correlated with the outer diameter of the third locking member 1023. In order to ensure that the third locking member 1023 can be smoothly placed in the insert 105 and remain stable, the width of the insert 105 should be at least equal to or slightly larger than the width or maximum outer diameter of the third locking member 1023.

[0105] The width of the insert 105 is related to the reserved gap between the insert 105 and the third locking member 1023, which can ensure that the third locking member 1023 will not be difficult to install in the insert 105 due to an overly tight fit between the third locking member 1023 and the insert 105, nor will the connection be loose due to an overly loose fit between the third locking member 1023 and the insert 105.

[0106] The depth of the insert 105 is related to the thickness of the third locking member 1023 . To ensure that the third locking member 1023 can be smoothly inserted into the insert 105 and remain stable, the depth of the insert 105 should be at least equal to or slightly greater than the thickness of the third locking member 1023 .

[0107] The depth of the embedment 105 is related to the reserved gap between the embedment 105 and the third locking member 1023, which can ensure that the third locking member 1023 will not be difficult to install in the embedment 105 due to the overly tight fit between the embedment 105, nor will the connection be loose due to the overly loose fit between the third locking member 1023 and the embedment 105.

[0108] In some embodiments, the length l1 of the insert 105 satisfies: l1≥c1+2e3+20; or the width b1 of the insert 105 satisfies: b1≥c1+2i; or the depth b2 of the insert 105 satisfies b2≥c2+i; wherein c1 is the plane dimension of the third locking member 1023, i is the size of the reserved gap between the third locking member 1023 and the insert 105, e3 is the vertical construction deviation of the prefabricated wall panel 02, and c2 is the thickness of the third locking member 1023.

[0109] The embedded insert 105 extending in the outward direction of the prefabricated wall panel 02 in the slidable flexible connection node 10 installed at the bottom of the prefabricated wall panel 02 has a length l1≥c1+2e3+20, a width b1≥c1+2i, c1 is the plane size of the third locking member 1023, i is the size of the reserved gap between the third locking member 1023 and the insert 105, which is generally 2-3 mm, e3 is the vertical construction deviation of the prefabricated wall panel 02, and a depth b2≥c2+i, where c2 is the thickness of the third locking member 1023. The size and thickness of the third locking member 1023 can be determined according to the diameter specification of the first connecting member 1021.

[0110] Calculation can ensure that the third locking member 1023 will not be difficult to install in the insert 105 due to an overly tight fit with the insert 105, nor will the connection be loose due to an overly loose fit between the third locking member 1023 and the insert 105.

[0111] The construction method of the slidable flexible connection node is as follows:

[0112] Step S1: First, the embedded angle steel, the specifications of the connecting bolts and the size of the reserved oblong holes on the angle steel are determined according to the form of the main structure 01, the horizontal wind load, the earthquake effect, etc.

[0113] Step S2: Install the sealant 202 at the joint between the prefabricated wall panel 02 and the main structure 01 or the prefabricated wall panel 02 of the next layer.

[0114] Step S3: The prefabricated wall panel 02 is hoisted to the pre-installation position on site, and the reserved connecting steel bars 204 on the top of the prefabricated wall panel 02 are anchored into the main structure 01. After the main structure 01 is poured, the preset pad at the bottom of the prefabricated wall panel 02 is removed.

[0115] Step S4: fix the first installation part 1011 of the slidable flexible connection node 10 to the prefabricated wall panel 02, and after the prefabricated wall panel 02 is installed and positioned in the outward direction to the construction allowable accuracy, fix the first fastening component 102 and the second fastening component 103 of the slidable flexible connection node 10.

[0116] Step S5: Supplement waterproof sealing at the joints between the prefabricated wall panel 02 and the main structure 01 or the prefabricated wall panel 02 of the next layer.

[0117] Step S6: Finally, a cover plate 203 is added to the installation groove 201 reserved in the prefabricated wall panel 02 .

[0118] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A slidable flexible connection node of a top-hung precast concrete wall panel, characterized in that: The slidable flexible connection node is applied to a building, wherein the building comprises multiple layers of spliced ​​walls arranged in a height direction, each layer of the spliced ​​walls comprises a main structure and prefabricated wall panels, and the slidable flexible connection node comprises: The mounting member comprises a first mounting portion and a second mounting portion perpendicular to each other, wherein the first mounting portion is used to abut against the prefabricated wall panel, and the second mounting portion is used to abut against the main structure or the second mounting portion is used to abut against the prefabricated wall panel or the main structure of the next layer; A sliding hole, provided on the first mounting portion; A mounting hole, provided on the second mounting portion; A first fastening assembly includes a first connecting member and a first locking member movably connected to the first connecting member, the first connecting member is inserted into the sliding hole and fixed to the prefabricated wall panel, the first connecting member slides relative to the first mounting portion through the sliding hole, and the first locking member is fastened to the first connecting member; A second fastening assembly includes a second connecting member and a second locking member movably connected to the second connecting member, wherein the second connecting member is pre-buried in the main structure or the prefabricated wallboard of the next layer, the second connecting member can be inserted into the mounting hole, and the second locking member is fastened to the second connecting member and abuts against the second mounting portion; A sliding plate assembly is disposed between the first locking member and the mounting component, and / or the sliding plate assembly is disposed between the second locking member and the mounting component.

2. The slidable flexible connection node according to claim 1, characterized in that: The slidable flexible connection node also includes: An embedding piece, the embedding piece comprises a hollow cavity, the embedding piece is embedded in the prefabricated wall panel, and the extending direction of the embedding piece is perpendicular to the extending direction of the sliding hole; The first fastening assembly also includes a third locking member, which is located in the hollow cavity of the embedded member. The first connecting member passes through the prefabricated wall panel and the sliding hole and is fastened to the third locking member to connect the embedded member to the first mounting portion.

3. The slidable flexible connection node according to claim 2, characterized in that: The first mounting portion is in contact with the prefabricated wall panel, the first connecting member is arranged on the side of the prefabricated wall panel, the sliding hole extends vertically in the plane of the prefabricated wall panel, and the embedded member extends horizontally in the plane of the prefabricated wall panel; The second mounting portion is in contact with the main structure, and the second connecting member is embedded in a side portion of the main structure.

4. The slidable flexible connection node according to claim 2, characterized in that: The first mounting portion is in contact with the embedding member, the first connecting member is disposed at the bottom of the prefabricated wall panel, the sliding hole extends in a horizontal direction within the plane of the prefabricated wall panel, and the embedding member extends in a vertical direction within the plane of the prefabricated wall panel; The second mounting portion abuts against the top of the prefabricated wall panel of the next layer or the top of the main structure, and the second connecting member is pre-buried in the prefabricated wall panel of the next layer or the main structure.

5. The slidable flexible connection node according to claim 4, characterized in that: When the side of the prefabricated wall panel is exposed to air or the slidable flexible connection node at the bottom of the prefabricated wall panel meets the preset conditions, the side of the prefabricated wall panel is not provided with the slidable flexible connection node; or When the side of the prefabricated wall panel is a prefabricated wall column, the side of the prefabricated wall panel is not provided with the slidable flexible connection node, and the side of the prefabricated wall panel is connected to the main structure through a grouting sleeve.

6. The slidable flexible connection node according to any one of claims 1 to 5, characterized in that: The sliding plate assembly further comprises: a first sliding plate, disposed between the mounting member and the first locking member, the first sliding plate abutting against the first mounting portion, and / or the first sliding plate disposed between the second locking member and the mounting member; The second sliding plate is disposed between the first sliding plate and the first locking member, and the second sliding plate abuts against the first locking member.

7. The slidable flexible connection node according to any one of claims 1 to 5, characterized in that: The length of the sliding hole is related to the diameter of the first connecting member, the interlayer deformation or harmful interlayer deformation of the prefabricated wall panel, and the construction and installation deviation of the prefabricated wall panel in the horizontal direction in the plane; or The width of the sliding hole is positively correlated with the diameter of the first connecting member; or The length of the installation hole is related to the diameter of the second connecting member and the construction and installation deviation of the prefabricated wall panel along the out-of-plane direction of the prefabricated wall panel; or The width of the installation hole is related to the diameter of the second connecting member and the construction and installation deviation of the prefabricated wall panel in the horizontal direction within the plane.

8. The slidable flexible connection node according to any one of claims 1 to 5, characterized in that: The length L1 of the sliding hole satisfies: L1≥D1+λ×Δ+2e1; or The width B1 of the sliding hole satisfies: B1≥D1+2; or The length L2 of the mounting hole satisfies: L2≥D2+2e2; or The length B2 of the mounting hole satisfies: B2 width B2 ≥ D2 + e1; Among them, D1 is the diameter of the first connecting member, Δ is the interlayer deformation or harmful interlayer deformation of the prefabricated wall panel, λ is the magnification coefficient, e1 is the construction and installation deviation of the prefabricated wall panel along the horizontal direction within the surface, D2 is the diameter of the second connecting member, and e2 is the construction and installation deviation of the prefabricated wall panel along the outward direction of the prefabricated wall panel.

9. The slidable flexible connection node according to any one of claims 2 to 5, characterized in that: The length of the embedded member is related to the outer diameter of the third locking member and the vertical construction deviation of the prefabricated wall panel in the plane; or The width of the insert is related to the outer diameter of the third locking member and the reserved gap between the third locking member and the insert; or The depth of the embedded component is related to the thickness of the third locking component and the reserved gap between the third locking component and the embedded component.

10. The slidable flexible connection node according to any one of claims 2 to 5, characterized in that: The length l1 of the insert satisfies: l1≥c1+2e3+20; or The width b1 of the insert satisfies: b1≥c1+2i; or The depth b2 of the embedded part satisfies b2≥c2+i; Among them, c1 is the outer diameter of the third locking member, i is the size of the reserved gap between the third locking member and the embedded member, e3 is the vertical construction deviation of the prefabricated wall panel, and c2 is the thickness of the third locking member.

Images