Wall with prefabricated constructional columns

Abstract

The utility model relates to the technical field of buildings, in particular to a wall body with a prefabricated constructional column, which is formed by prefabricating the prefabricated constructional column and an ACC plate in a factory and assembling the prefabricated constructional column and the ACC plate in a field dry construction mode. The problems that cast-in-place reinforced concrete columns are long in construction period, quality is difficult to guarantee, and wet operation causes environmental pollution during cast-in-place concrete columns are solved. The construction method has the advantages that the construction efficiency is high, the quality assurance degree is high, the surface flatness of the wall formed by combining the prefabricated constructional columns and the ACC plates is high, a large amount of labor is saved, and garbage and generated dust brought by site construction are reduced. In addition, by arranging the U-shaped buckle pieces, the prefabricated constructional column can be conveniently guided and limited when the prefabricated constructional column is installed subsequently, and the installation efficiency is greatly improved. And after installation, the prefabricated constructional column and the ACC plate can be clamped at the same time, and the connection strength between the prefabricated constructional column and the ACC plate can be enhanced.

Description

A wall with prefabricated structural columns Technical Field

[0001] This utility model relates to the field of building technology, specifically to a wall with prefabricated structural columns. Background Technology

[0002] Autoclaved aerated concrete (AAC) originated in Europe. Since the world's first AAC plant was built in Sweden in 1929, AAC has gained popularity due to its advantages such as lightweight and porous structure, thermal insulation, fire resistance, good workability, convenient construction, and industrial production. By 2019, AAC panels (hereinafter referred to as ACC panels) were widely used in more than 50 countries worldwide. In some countries, ACC panels accounted for up to 40% of the building envelope system. Currently, buildings using ACC panels have exceeded 400 meters in height. Since introducing ACC panel production lines from Japan in 1997, my country has established its own domestic production lines, achieving significant advantages in lower production costs and superior quality. According to incomplete statistics, as of 2019, my country's ACC panel production capacity was approximately 268 million m³, with an annual output of approximately 160 million m³. With the advancement of my country's construction industrialization, ACC panel partitions have gradually become one of the preferred materials for partition walls in prefabricated buildings.

[0003] The use of ACC panel walls for partition walls has many advantages over traditional masonry techniques, including faster construction speed, less environmental impact, more flexible structure, greater overall cost-effectiveness, and higher construction quality. In Europe and America, when using ACC panel walls, structural columns are required. The design of the structural columns is adapted to local conditions, combining specifications and industrialization requirements, and using steel, wood, or concrete columns. Although steel and wood structural columns are more common in ACC panel walls, reinforced concrete structural columns are generally used in earthquake-prone areas, high-rise buildings, fire compartment walls, and walls in areas with dense pipelines. The concrete is poured in place. The current national standard GB / T15762-2020 "Autoclaved Aerated Concrete Board", the industry standard DBJ / T17-2020 "Technical Standard for Application of Autoclaved Aerated Concrete Products", the national standard design atlas 13J104 "Construction of Autoclaved Aerated Concrete Blocks and Boards" and 06CG05 "Construction of Autoclaved Lightweight Sand Aerated Concrete (ACC) Blocks and Boards" do not provide the construction methods and requirements for structural columns (including the middle, ends and edges of door and window openings) of ACC board partition walls. This is obviously an omission for ACC board walls in seismic fortification areas. Furthermore, practice has shown that when structural columns are not installed on ultra-long ACC panel walls (e.g., exceeding 6m in length), door (window) openings exceeding a certain width, door openings where doors are frequently opened and closed, and heavy doors, cracks often appear at the top corners of the walls and door (window) openings. Currently, designers often refer to the construction methods of masonry walls and install cast-in-place reinforced concrete structural columns. Although the surface of ACC panel walls without cast-in-place reinforced concrete structural columns can achieve the required flatness without plastering under meticulous construction conditions (saving on leveling plastering materials and labor, and also eliminating the common quality defects of hollow plastering and cracking in the later plastering layer), if cast-in-place reinforced concrete structural columns are installed in the wall, the concrete is cast on-site with erected formwork, often resulting in bulging and leakage of grout, requiring secondary manual grouting at the top, making it difficult to achieve the required flatness without plastering. In addition, if cast-in-place reinforced concrete structural columns are installed in ACC panel walls (especially around door openings), it often causes the ACC panel installation process to be discontinuous, leading to an extension of the construction period.

[0004] The above-mentioned issues lead to fragmentation, numerous procedures, slow speed, and inability to guarantee the quality of ACC panel wall construction on site.

[0005] In existing technologies, such as application number "201610260155.8", a lightweight partition wall structure and its installation method are disclosed. This application also includes U-shaped clips to strengthen the connection between the square steel structural column with pre-filled polystyrene particles and the wall. However, in this application, the U-shaped clips are connected to the installation surface of the structural column by welding, which leads to low construction efficiency. Furthermore, welding poses on-site fire prevention issues and may affect the health of workers. Additionally, there is material incompatibility between the square steel structural column and the lightweight partition wall, often resulting in cracking and other quality problems at the connection point during use.

[0006] In view of the above-mentioned technical problems, this utility model is proposed in this study. Summary of the Invention

[0007] The technical problem this invention aims to solve is to provide a wall with precast structural columns. By prefabricating the precast structural columns and ACC panels in a factory and assembling them on-site using dry construction methods, it overcomes the problems of long construction cycles, difficulty in ensuring quality, and environmental pollution caused by wet work during on-site concrete column pouring. It offers advantages such as high construction efficiency, high quality assurance, high surface flatness of the wall formed by the combination of precast structural columns and ACC panels, significant labor savings, and reduced waste and dust generated during on-site construction.

[0008] To solve the above-mentioned technical problems, this utility model proposes a wall with prefabricated structural columns, including adjacent prefabricated structural columns and ACC panels located between upper and lower floors. Both the prefabricated structural columns and ACC panels are prefabricated structures, and adhesive is provided at both ends of the prefabricated structural columns, the bottom surface of the ACC panels, and the joints between the two. Furthermore, adhesive or flexible filler material is provided on the top surface of the ACC panels.

[0009] The U-shaped fastener includes a first fastening part and a second fastening part. The first fastening part is fastened to the top of the ACC panel and a pre-connector is provided to pre-connect the first fastening part to the top of the ACC panel. The second fastening part is exposed on the top side of the ACC panel and is fixedly connected to the floor slab or beam of the upper floor. The top part of the precast structural column is partially fastened to the second fastening part.

[0010] A precast structural column connection assembly includes an upper precast structural column connector and a lower precast structural column connector. The upper precast structural column connector is disposed on the top of the precast structural column and is used to connect the top of the precast structural column to the floor slab or beam of the upper floor, thereby fixing the top of the precast structural column. The lower precast structural column connector is disposed on the bottom of the precast structural column and is used to connect the bottom of the precast structural column to the floor slab or beam of the lower floor, thereby fixing the bottom of the precast structural column.

[0011] An ACC panel connection assembly includes an upper ACC panel connector disposed on the top of the ACC panel. The upper ACC panel connector is used to connect the top of the ACC panel to a corresponding floor slab or beam, thereby fixing the top of the ACC panel.

[0012] As described above, a wall with precast structural columns is provided with longitudinally spaced through holes that penetrate laterally through the precast structural columns. A reinforcing steel rod extending into the ACC panel is inserted into the through hole. The diameter of the through hole is φA, and the diameter of the reinforcing steel rod is φB. Therefore, φA > φB. An adhesive material that can be bonded to the reinforcing steel rod is poured into the through hole, thereby connecting the reinforcing steel rod with the precast structural column and the ACC panel as a whole.

[0013] As described above, a wall with prefabricated structural columns is characterized in that the axis of the through hole forms an angle α with the horizontal plane, where 0°<α≤30°.

[0014] As described above, in a wall with prefabricated structural columns, one side of the first snap-fit ​​portion is formed with a connecting plate that is fixedly connected to the top of the ACC panel.

[0015] As described above, in a wall with precast structural columns, the upper precast structural column connector is pre-installed in the precast structural column and fixedly connected to it. The upper precast structural column connector partially protrudes from the precast structural column and extends outward to the outside of the precast structural column, with the extended portion connecting to the floor slab or beam bottom of the upper floor to fix the upper end of the precast structural column. The lower precast structural column connector is L-shaped, with one end connected to the lower end of the precast structural column and the other end connected to the floor slab or beam of the lower floor, thereby fixing the lower end of the precast structural column.

[0016] As described above, in a wall with prefabricated structural columns, the upper ACC panel connector includes a plug that can be inserted into the top of the ACC panel and a fixing plate that is fixedly connected to the plug. The fixing plate is connected to the floor slab or beam of the upper floor to fix the upper end of the ACC panel.

[0017] As described above, in a wall with prefabricated structural columns, the upper prefabricated structural column connector, the lower prefabricated structural column connector, the upper ACC plate connector, and the U-shaped fastener are all formed with reinforced fixing structures that allow adhesive materials to penetrate or permeate.

[0018] As described above, in a wall with prefabricated structural columns, the reinforcing fixing structure is a hole or a rough surface.

[0019] As described above, in a wall with precast structural columns, the surfaces of the upper precast structural column connector, the lower precast structural column connector, the upper ACC plate connector, and the U-shaped fastener are all provided with a galvanized layer.

[0020] As described above, a wall with precast structural columns is provided with a convex-concave splicing structure that engages with each other between the precast structural columns and the ACC panel. The convex-concave splicing structure consists of a protruding ridge on one side of the precast structural column and a slot on one side of the ACC panel that engages with the protruding ridge; or the convex-concave splicing structure consists of a slot on one side of the precast structural column and a protruding ridge on one side of the ACC panel that engages with the slot.

[0021] Compared with the prior art, the wall with prefabricated structural columns of this utility model has the following advantages:

[0022] 1. Compared to the previous method of casting concrete columns on-site, this application overcomes the problems of long construction cycles, difficulty in ensuring quality, and environmental pollution caused by wet work during on-site concrete column casting by prefabricating precast structural columns and ACC panels in the factory and assembling them on-site using dry construction methods. It offers advantages such as high construction efficiency, high quality assurance, high surface flatness of the wall formed by the combination of precast structural columns and ACC panels, significant labor savings, and reduced waste and dust generated during on-site construction.

[0023] 2. This application utilizes U-shaped fasteners to facilitate the guidance and positioning of precast structural columns during subsequent installation, significantly improving installation efficiency. Furthermore, after installation, the precast structural columns can be simultaneously secured to the ACC slab, enhancing the connection strength between them.

[0024] 3. The U-shaped fastener of this application can also be connected to beams or floors, thereby making the entire wall connection more stable.

[0025] 4. This application sets reinforcing steel bars in the precast structural columns and connects them to the ACC slab, which can further enhance the connection strength between the ACC slab and the precast structural columns, making the connection between the two more stable. Attached Figure Description

[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0027] Figure 1 is a structural schematic diagram of this utility model.

[0028] Figure 2 is another structural schematic diagram of this utility model.

[0029] Figure 3 is a schematic diagram of the through hole in this utility model.

[0030] Figure 4 is a schematic diagram of the through hole in this utility model.

[0031] Figure 5 is an exploded structural diagram of this utility model.

[0032] Figure 6 is one of the structural schematic diagrams of the U-shaped fastener in this utility model.

[0033] Figure 7 is the second structural schematic diagram of the U-shaped fastener in this utility model.

[0034] Figure 8 is the third structural schematic diagram of the U-shaped fastener in this utility model.

[0035] Figure 9 is the fourth structural schematic diagram of the U-shaped fastener in this utility model.

[0036] Figure 10 is a structural schematic diagram of the prefabricated structural column in this utility model.

[0037] Figure 11 is a schematic diagram of the ACC board in this utility model.

[0038] Figure 12 is a structural schematic diagram of the ACC board connection assembly in this utility model.

[0039] Figure 13 is the fifth structural schematic diagram of the U-shaped buckle in this utility model.

[0040] In the diagram: 1. Precast structural column; 2. ACC panel; 3. Concave-convex splicing structure; 30. Protruding ridge; 31. Slot; 4. U-shaped fastener; 40. First snap-fit ​​part; 41. Second snap-fit ​​part; 42. Connecting plate; 43. Pre-connector; 5. Precast structural column connecting assembly; 50. Upper precast structural column connector; 51. Lower precast structural column connector; 6. ACC panel connecting assembly; 60. Upper ACC panel connector; 601. Insert connector; 602. Fixing plate; 61. Lower ACC panel connector; 7. Through hole; 8. Reinforcing steel bar; 9. Reinforcing fixing structure; 10. Clearance groove. Detailed Implementation

[0041] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0042] As shown in Figures 1-13, this utility model includes a wall with precast structural columns, comprising precast structural columns 1 and ACC slabs 2 that are adjacent to each other and located between upper and lower floors. Both the precast structural columns 1 and ACC slabs 2 are precast structures. The precast structural columns 1 are precast reinforced concrete structures, and the ACC slabs 2 are precast autoclaved aerated concrete slabs. Adhesive is provided at both ends of the precast structural columns 1, on the bottom surface of the ACC slabs 2, and at the joints between the two. The top surface of the ACC slabs 2 is provided with adhesive or flexible filler material.

[0043] U-shaped fastener 4, the U-shaped fastener 4 includes a first fastening part 40 and a second fastening part 41. The first fastening part 40 is fastened to the top of the ACC plate 2 and a pre-connector 43 is provided to pre-connect the first fastening part 40 to the top of the ACC plate 2. The top part of the prefabricated structural column 1 is fastened to the second fastening part 41.

[0044] The precast structural column connection assembly 5 includes an upper precast structural column connector 50 and a lower precast structural column connector 51. The upper precast structural column connector 50 is disposed on the top of the precast structural column 1 and is used to connect the top of the precast structural column 1 to the floor slab or beam of the upper floor, thereby fixing the top of the precast structural column 1. The lower precast structural column connector 51 is disposed on the bottom of the precast structural column 1 and is used to connect the bottom of the precast structural column 1 to the floor slab or beam of the lower floor, thereby fixing the bottom of the precast structural column 1.

[0045] ACC board connection assembly 6, the ACC board connection assembly 6 includes an upper ACC board connector 60 disposed on the top of the ACC board 2, the upper ACC board connector 60 is used to connect the top of the ACC board 2 to the corresponding floor slab or beam, thereby fixing the top of the ACC board 2.

[0046] This application discloses a wall with precast structural columns 1, wherein ACC panels 2 are disposed between two adjacent precast structural columns 1, or between a precast structural column 1 and an existing wall or load-bearing column, and at least one ACC panel 2 is provided. The wall of this application is installed through the following steps:

[0047] S1. Layout: Arrange the ACC slab 2 and precast structural column 1 according to the construction drawings and the actual construction conditions on site. Clarify the position, quantity and size of the ACC slab 2 and precast structural column 1. You can set labels on the precast structural column 1 and ACC slab 2 for differentiation, so as to facilitate the construction personnel to assemble them later.

[0048] S2. Prepare installation materials: Transport the main and auxiliary materials and installation equipment, such as precast structural columns 1, ACC panels 2, U-shaped fasteners 4, precast structural column connecting components 5, and ACC panel connecting components 6, to the construction site.

[0049] S3. Install ACC panel 2: Install ACC panels 2 in sequence according to the panel arrangement order, and further fix the upper end of ACC panel 2 through the upper ACC panel connector 60. Before installing ACC panel 2 that is connected to the precast structural column 1, snap the first snap part 40 of the U-shaped fastener 4 to the top of the ACC panel 2 and fix it. Then, erect ACC panel 2. After positioning, fix the second snap part 41 of the U-shaped fastener 4 to the floor slab or beam of the upper floor by means of metal nails, etc. Then, further fix the upper end of ACC panel 2 through the upper ACC panel connector 60.

[0050] S4. Install precast structural column 1: Erect the precast structural column 1 so that the top of the precast structural column 1 is engaged with the second snap-fit ​​part 41, and further fix the upper and lower ends of the precast structural column 1 by the upper precast structural column connector 50 and the lower precast structural column connector 51, and then complete the installation.

[0051] It should be noted that in step S4, if it is necessary to continue installing ACC slab 2 on the other side of the precast structural column 1, step S3 can be repeated. It should also be noted that adhesive will be used to strengthen the connection between adjacent ACC slabs 2 and between ACC slab 2 and the precast structural column 1. Adhesive will also be used at the top of ACC slab 2 and the precast structural column 1 to strengthen the connection with the upper floor slab or beam, and similarly at the bottom of ACC slab 2 and the precast structural column 1 to strengthen the connection with the lower floor slab or beam. The top of ACC slab 2 can be provided with adhesive or flexible filler material. The adhesive can be fine aggregate concrete, mortar, or a combination of one or more adhesives, and the flexible filler material can be expanding foam. It should be further noted that the adhesive and flexible filler materials are not shown in this application.

[0052] Compared to the previous method of casting concrete columns on-site, this application overcomes the problems of long construction cycles, difficulty in ensuring quality, and environmental pollution caused by wet work during on-site concrete column casting by prefabricating the precast structural column 1 and ACC panel 2 in the factory and assembling them on-site using dry construction methods. It offers advantages such as high construction efficiency, high quality assurance, high surface flatness of the wall formed by the combination of precast structural column 1 and ACC panel 2, significant labor savings, and reduced waste and dust generated during on-site construction.

[0053] This application utilizes a U-shaped fastener 4 to guide and limit the precast structural column 1 during subsequent installation, greatly improving installation efficiency. After installation, the precast structural column 1 and ACC slab 2 can be simultaneously clamped together, strengthening the connection between them. Furthermore, the U-shaped fastener 4 connects to the floor slab of the upper floor, further enhancing the stability of the entire wall connection.

[0054] As shown in Figures 3, 4, and 5, as a further embodiment, to strengthen the connection between the precast structural column 1 and the ACC slab 2, the precast structural column 1 is longitudinally spaced with through holes 7 extending transversely through it. The axis of the through hole 7 forms an angle α with the horizontal plane, where 0° < α ≤ 30°. In this application, the angle α is preferably 5°. A reinforcing steel rod 8 extending into the ACC slab 2 is inserted into the through hole 7. The diameter of the through hole 7 is φA, and the diameter of the reinforcing steel rod 8 is φB, where φA > φB. An adhesive material is injected into the through hole 7 to bond the reinforcing steel rod 8, thereby connecting the reinforcing steel rod 8 to the precast structural column 1 and the ACC slab 2 as a whole. This adhesive material is not shown in this application.

[0055] As shown in Figures 3 to 5, by installing the reinforcing steel rod 8, the connection strength between the ACC plate 2 and the precast structural column 1 can be further enhanced, making the connection between the two more stable. The diameter φA of the through hole 7 is set to be larger than the diameter φB of the reinforcing steel rod 8. This allows for faster insertion of the reinforcing steel rod 8, and also ensures that both the sidewalls of the reinforcing steel rod 8 and the through hole 7 are filled with adhesive, thus increasing the connection strength between the reinforcing steel rod 8 and the precast structural column 1.

[0056] When installing the reinforcing steel rod 8, adhesive is poured into the through hole 7, and then the reinforcing steel rod 8 is inserted into the through hole 7. The front part of the reinforcing steel rod 8 is then coated with adhesive and inserted into the ACC plate 2, thereby connecting the reinforcing steel rod 8 to both the precast structural column 1 and the ACC plate 2. Through the reinforcing steel rod 8, the precast structural column 1 and the ACC plate 2 are further solidified into a single unit. It should be noted that the strength of the precast structural column 1 is generally above 25 MPa. Therefore, the through hole 7 needs to be pre-set to prevent damage to the precast structural column 1 during later opening, and also to avoid the inconvenience and inconsistent quality of later drilling. The strength of the ACC plate 1 is generally around 5 MPa. Therefore, after applying force to the reinforcing steel rod 8, it can be inserted into the ACC plate 2, making the two a single unit and greatly improving the overall support performance of the wall.

[0057] Furthermore, in this embodiment, by setting the through hole 7 at an angle to the horizontal plane, the shear strength can be improved, causing the reinforcing steel bar 8 to generate an axial component force when subjected to shear, forming a "diagonal tension-compression" composite stress mode. The load transfer path changes from single shear to the synergistic effect of the reinforcing steel bar 8 under tension and the precast structural column 1, avoiding local brittle failure of the ACC slab 2. Since the through hole 7 is inclined downwards, it is convenient for workers to hammer the reinforcing steel bar 8 into the ACC slab 2 using tools such as hammers during construction. Also, since the through hole 7 is inclined downwards, while the opening of the through hole 7 is angled upwards, it facilitates the injection of adhesive, and the adhesive will not flow out of the opening after injection. It should be noted that the adhesive is not shown in this application.

[0058] As shown in Figure 7, as a further embodiment, a connecting plate 42 is formed on one side of the first snap-fit ​​part 40, which is fixedly connected to the top of the ACC plate 2. By setting the connecting plate 42, the connection position between the entire U-shaped snap fastener 4 and the ACC plate 2 is closer to the center of the ACC plate 2, avoiding damage to the ACC plate 2 when connected via metal pins or the like. Furthermore, setting the connecting plate 42 saves material on the entire U-shaped snap fastener 4, eliminating the need to make the entire U-shaped snap fastener 4 longer to address the issue of the fixed position to the top of the ACC plate 2 needing to be closer to the center. Similarly, as shown in Figure 8, the second snap-fit ​​part 41 can also be provided with a connecting plate 42, which is then used to connect to the floor slab or beam of the upper floor. Additionally, a pre-connecting piece 43 can be directly provided on the connecting plate 42. When installing the entire U-shaped snap fastener 4, the pre-connecting piece 43 can be directly hammered into the top of the ACC plate 2, which is convenient and quick. In addition, as shown in Figure 9, when the thickness of the precast structural column 1 and the ACC plate 2 are inconsistent, the U-shaped fastener 4 can also be configured to have different sizes for the first snap-fit ​​part 40 and the second snap-fit ​​part 41 as required.

[0059] As shown in Figure 10, as a further embodiment, the upper precast structural column connector 50 is pre-installed in the precast structural column 1 and fixedly connected to it. Part of the upper precast structural column connector 50 protrudes from the precast structural column 1 and extends outwards, with the extended portion connecting to the floor slab or beam of the upper floor to fix the upper end of the precast structural column 1. The lower precast structural column connector 51 is L-shaped, with one end connected to the lower side of the precast structural column 1 and the other end connected to the floor slab or beam of the lower floor, thereby fixing the lower end of the precast structural column 1. In this embodiment, to improve subsequent construction efficiency and make the connection more stable, when the structural column 1 is precast in the factory, the upper precast structural column connector 50 can be pre-installed in the precast structural column 1, partially protruding from one side. During subsequent installation of the precast structural column 1, after the precast structural column 1 is erected, the protruding portion of the upper precast structural column connector 50 can be connected to the floor slab or beam using metal nails, expansion bolts, or other components. The precast structural column connector 51 can be L-shaped. One part of it is connected to one side of the precast structural column 1 by means of metal nails, and the other part is connected to the floor slab or beam of the lower floor by means of metal nails, so that the lower end of the precast structural column 1 can be fixed.

[0060] As shown in Figures 10 and 11, as a further embodiment, the upper ACC plate connector 60 includes a plug 601 that can be inserted into the top of the ACC plate 2 and a fixing plate 602 fixedly connected to the plug 601. The fixing plate 602 is connected to the floor slab or beam of the upper floor to fix the upper end of the ACC plate 2. In this embodiment, after setting the plug 601, the plug 601 can be inserted into the ACC plate 2 using tools such as a hammer, which is convenient and quick and easy for on-site construction. After the ACC plate 2 is erected, the fixing plate 602 is fixedly connected to the floor slab or beam of the upper floor using metal nails or other methods to fix the top of the ACC plate 2. Alternatively, the upper ACC plate connector 60 can also be used on the bottom of the ACC plate 2 in the same way to form a lower ACC plate connector 61, thereby fixing the bottom of the ACC plate 2. The installation method is the same as that of the upper ACC plate connector 60, and will not be described again here. It should be noted that the plug 601 can be tubular or rod-shaped.

[0061] As shown in Figure 13, as a further embodiment, the upper precast structural column connector 50, the lower precast structural column connector 51, the upper ACC plate connector 60, and the U-shaped fastener 4 are all formed with reinforcing fixing structures 9 that allow adhesive material to penetrate or permeate. These reinforcing fixing structures 9 are holes or rough surfaces. Since the upper precast structural column connector 50, the lower precast structural column connector 51, the upper ACC plate connector 60, and the U-shaped fastener 4 all have reinforcing fixing structures 9 that allow adhesive material to penetrate or permeate, adhesive material is required to further fix the precast structural column 1 and the ACC plate 2. By setting the reinforcing fixing structure 9, the connection strength between the adhesive material and the corresponding upper precast structural column connector 50, lower precast structural column connector 51, upper ACC plate connector 60, and U-shaped fastener 4 can be further improved, making the connection more stable. It should be noted that the reinforcing fixing structure 9 is not shown in the upper precast structural column connector 50, the lower precast structural column connector 51, and the upper ACC plate connector 60.

[0062] As a further embodiment, the surfaces of the upper prefabricated structural column connector 50, the lower prefabricated structural column connector 51, the upper ACC plate connector 60, and the U-shaped fastener 4 are all provided with a galvanized layer. The galvanized layer further prevents corrosion of the components and improves their service life. It should be noted that the galvanized layer is not shown in this application.

[0063] As shown in Figure 10, as a further embodiment, the precast structural column 1 is provided with a clearance groove 10 for avoiding the corresponding upper precast structural column connector 50, lower precast structural column connector 51, and U-shaped fastener 4. By providing the clearance groove 10, physical space can be provided for the U-shaped fastener 4, upper precast structural column connector 50, lower precast structural column connector 51, and upper ACC plate connector 60, eliminating the risk of hard collisions between components. Simultaneously, it facilitates positioning and installation of the U-shaped fastener 4, upper precast structural column connector 50, lower precast structural column connector 51, and upper ACC plate connector 60. It should also be noted that the clearance groove 10 for cooperating with the U-shaped fastener 4, lower precast structural column connector 51, and upper ACC plate connector 60 is not shown in the figure.

[0064] As shown in Figure 5, as a further embodiment, a concave-convex splicing structure 3 is provided between the splicing sides of the precast structural column 1 and the ACC panel 2, which engages with each other. The concave-convex splicing structure 3 consists of a protruding ridge 30 on one side of the precast structural column 1 and a slot 31 on one side of the ACC panel 2 that engages with the protruding ridge 30; or the concave-convex splicing structure 3 consists of a slot 31 on one side of the precast structural column 1 and a protruding ridge 30 on one side of the ACC panel 2 that engages with the slot 31. By setting the concave-convex splicing structure 3, the connection between the precast structural column 1 and the ACC panel 2 can be made more stable, and the precast structural column 1 can further fix the ACC panel 2.

Claims

1. A wall with prefabricated structural columns, characterized in that... The system includes prefabricated structural columns (1) and ACC slabs (2) that are adjacent to each other and located between upper and lower floors. Both the prefabricated structural columns (1) and ACC slabs (2) are prefabricated structures. Adhesive is provided at both ends of the prefabricated structural columns (1), the bottom surface of the ACC slabs (2), and the joint between the two. Adhesive or flexible filling material is provided on the top surface of the ACC slabs (2). The system also includes: U-shaped fasteners (4), which include a first fastening part (40) and a second fastening part (41). The first fastening part (40) is fastened to the top of the ACC slabs (2) and a pre-connecting part (43) is provided to pre-connect the first fastening part (40) to the top of the ACC slabs (2). The second fastening part (41) is exposed on the top side of the ACC slabs (2) and is fixedly connected to the floor slab or beam of the upper floor. The top part of the prefabricated structural columns (1) is partially fastened into the second fastening part (41). The system also includes a prefabricated structural column connecting assembly (5). The prefabricated structural column connection assembly (5) includes an upper prefabricated structural column connector (50) and a lower prefabricated structural column connector (51). The upper prefabricated structural column connector (50) is located on the top of the prefabricated structural column (1) and is used to connect the top of the prefabricated structural column (1) to the floor slab or beam of the upper floor, thereby fixing the top of the prefabricated structural column (1). The lower prefabricated structural column connector (51) is located on the bottom of the prefabricated structural column (1) and is used to connect the bottom of the prefabricated structural column (1) to the floor slab or beam of the lower floor, thereby fixing the bottom of the prefabricated structural column (1). The ACC slab connection assembly (6) includes an upper ACC slab connector (60) located on the top of the ACC slab (2). The upper ACC slab connector (60) is used to connect the top of the ACC slab (2) to the corresponding floor slab or beam, thereby fixing the top of the ACC slab (2).

2. A wall with prefabricated structural columns according to claim 1, characterized in that... The precast structural column (1) is longitudinally spaced with through holes (7) that penetrate laterally through the precast structural column (1). A reinforcing steel rod (8) extending into the ACC plate (2) is inserted into the through hole (7). The diameter of the through hole (7) is φA and the diameter of the reinforcing steel rod (8) is φB. Therefore, φA > φB. The through hole (7) is filled with an adhesive that can be bonded to the reinforcing steel rod (8), thereby connecting the reinforcing steel rod (8) with the precast structural column (1) and the ACC plate (2) into one piece.

3. A wall with prefabricated structural columns according to claim 2, characterized in that... The axis of the through hole (7) forms an angle α with the horizontal plane, so 0°<a≤30°.

4. A wall with prefabricated structural columns according to claim 1, characterized in that... One side of the first snap-fit ​​part (40) is formed with a connecting plate (42) that is fixedly connected to the top of the ACC plate (2).

5. A wall with prefabricated structural columns according to claim 1, characterized in that... The upper precast structural column connector (50) is pre-installed in the precast structural column (1) and fixedly connected to the precast structural column (1). The upper precast structural column connector (50) partially protrudes from the precast structural column (1) and extends to the outside of the precast structural column (1). The extended part is connected to the floor slab or beam of the upper floor to fix the upper end of the precast structural column (1). The lower precast structural column connector (51) is "L" shaped. One end is connected to the lower end of the precast structural column (1), and the other end is connected to the floor slab or beam of the lower floor, thereby fixing the lower end of the precast structural column (1).

6. A wall with prefabricated structural columns according to claim 1, characterized in that... The upper ACC plate connector (60) includes a plug (601) that can be inserted into the top of the ACC plate (2) and a fixing plate (602) that is fixedly connected to the plug (601). The fixing plate (602) is connected to the floor slab or beam of the upper floor to fix the upper end of the ACC plate (2).

7. A wall with prefabricated structural columns according to claim 1, characterized in that... The upper precast structural column connector (50), the lower precast structural column connector (51), the upper ACC plate connector (60), and the U-shaped buckle (4) are all formed with reinforced fixing structures (9) that allow adhesive materials to penetrate or permeate.

8. A wall with prefabricated structural columns according to claim 7, characterized in that... The reinforcing fixing structure (9) is a hole or a rough surface.

9. A wall with prefabricated structural columns according to claim 1, characterized in that... The surfaces of the upper precast structural column connector (50), the lower precast structural column connector (51), the upper ACC plate connector (60), and the U-shaped buckle (4) are all provided with a galvanized layer.

10. A wall with prefabricated structural columns according to claim 1, characterized in that... The precast structural column (1) and the ACC plate (2) are provided with a convex-concave splicing structure (3) that engages with each other. The convex-concave splicing structure (3) consists of a protruding ridge (30) on one side of the precast structural column (1) and a slot (31) on one side of the ACC plate (2) that engages with the protruding ridge (30); or the convex-concave splicing structure (3) consists of a slot (31) on one side of the precast structural column (1) and a protruding ridge (30) on one side of the ACC plate (2) that engages with the slot (31).

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