High-strength assembly butt joint structure for building edge prefabricated wall panels

Abstract

According to the high-strength assembly butt joint structure for the building edge prefabricated wall panels, rubber supporting strips are arranged on the outer edge portions of building floor plates in the length direction of the building floor plates, the outer edge portions of the bottom faces of the prefabricated wall panels are pressed on the rubber supporting strips, so that reinforcing gaps are formed between the prefabricated wall panels and the floor plates, and short blocking strips are plugged into the two ends of the reinforcing gaps; a long plugging strip is plugged into the edge of the inner side of the reinforcing gap, and a cavity is formed between the floor plate and the prefabricated wall plate through the long plugging strip, the short plugging strip and the rubber supporting strip; a plurality of joint bar holes are evenly formed in the bottom face of the prefabricated wall plate, joint joint bars on the floor plate are inserted into the joint bar holes in a matched mode, feeding holes connected with the middles of the joint bar holes are formed in the side face of the floor plate, and inclined supporting rods are arranged on the upper portion and the lower portion of the side face of the prefabricated wall plate. According to the assembly butt joint structure, it can be guaranteed that concrete has high compactness in the cavity, the construction firmness of the joints is improved, and the assembly construction quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated buildings, and in particular to a high-strength assembly and docking structure for prefabricated wall panels at the edge of a building. Background Technology

[0002] Precast wall panels are manufactured using factory production methods, employing modern production processes and equipment to produce standardized, reliable building materials. Factory production reduces on-site construction time, significantly shortening the construction period. Factory production allows for strict quality control according to standards, ensuring consistent panel quality, uniform specifications, and precise dimensions, effectively saving materials and reducing construction waste. Currently, precast wall panels are typically assembled using cranes. When assembling walls at the building's edges, the lack of external support prevents the placement of concrete before casting formwork. Therefore, concrete is usually laid on the floor slab surface at the assembly location, and the precast wall panels are then slowly placed onto the concrete. This method cannot guarantee the density of the concrete joints, resulting in insufficient reinforcement at the joints and compromising the overall quality of the precast wall panel assembly. This method needs improvement. Utility Model Content

[0003] To address the aforementioned issues, this utility model proposes a high-strength assembly and docking structure for prefabricated wall panels at the building's edge.

[0004] The technical solution of this utility model is: a high-strength assembly and docking structure for prefabricated wall panels at the edge of a building. Rubber support strips are provided along the length of the outer edge of the building floor slab, and these rubber support strips are adhered and fixed to the surface of the floor slab. The outer edge of the bottom surface of the prefabricated wall panel presses against the rubber support strips, forming a reinforced gap between the prefabricated wall panel and the floor slab. The bottom surface of the prefabricated wall panel and the surface of the floor slab are arranged parallel to each other. Short sealing strips are inserted at both ends of the reinforced gap, and long sealing strips are inserted along the inner edge of the reinforced gap. The short and long sealing strips have the same cross-sectional dimensions and shape. The sealing strip, short sealing strip, and rubber support strip form a cavity between the floor slab and the precast wall panel; the bottom surface of the precast wall panel is evenly provided with several insertion holes, and the joint insertion bars on the floor slab are matched and inserted into the insertion holes. The joint insertion bars are vertically anchored in the floor slab. The size of the insertion hole is larger than the size of the joint insertion bar, so that a casting chamber is formed between the insertion hole and the joint insertion bar. The side of the floor slab is provided with a feed hole connected to the middle of the insertion hole, and the feed hole is radially connected to the insertion hole; the upper and lower parts of the side of the precast wall panel are provided with diagonal braces, and the lower end of the diagonal braces is supported on the surface of the floor slab.

[0005] Preferably, both the short sealing strip and the long sealing strip are made of plastic corrugated flexible tubing.

[0006] Preferably, a concrete sealing platform is provided between the precast wall panel and the floor slab on the outer side of the long sealing strip.

[0007] Preferably, a plurality of support blocks are evenly placed on the bottom surface of the cavity, and the upper surface of the support blocks is supported on the bottom surface of the precast wall panel. The support blocks are concrete blocks, and the surface of the support blocks is roughened.

[0008] Preferably, the cavity is provided with a partition plate with an isosceles trapezoidal cross-section in the middle, the partition plate divides the cavity into two small chambers, the partition block is a concrete block, and the surface of the partition block is roughened.

[0009] Preferably, the bottom surface of the precast wall panel is provided with an expansion groove covering several insertion holes, and the expansion groove is a square groove with a certain depth.

[0010] Preferably, an observation hole is provided above the feed hole and connected to the upper end of the insertion hole. Both the observation hole and the feed hole are provided with a sealing plug, which is a cylindrical rubber plug. Both the observation hole and the feed hole are round holes.

[0011] Preferably, the diagonal brace is a bidirectional telescopic rod, which includes a threaded sleeve in the middle and threaded telescopic rods connected to both ends of the threaded sleeve. A rotating handle is provided in the middle of the threaded sleeve. A support is hinged to the upper end of the bidirectional telescopic rod. The upper support is fixedly connected to the precast wall panel, and the lower support is fixedly connected to the floor slab.

[0012] The beneficial technical effects of this utility model are as follows: This utility model provides support for the precast wall panel by setting rubber support strips on the edge of the floor slab, initially forming a pouring gap. Then, the gap is sealed by inserting plastic corrugated hoses into the inside and both ends to form a pouring cavity. The joint between the precast wall panel and the floor slab is reinforced by pouring concrete into the cavity through the feed hole. This method can ensure that the concrete has a high density in the cavity, improve the firmness of the joint construction, and ensure the quality of assembly construction. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0014] Figure 2 yes Figure 1 A schematic diagram of the AA-direction cross-section structure;

[0015] Figure 3 yes Figure 2 Schematic diagram of the BB-direction cross-section structure;

[0016] Figure 4 yes Figure 3 A magnified view of a portion of the image;

[0017] Figure 5 This is a three-dimensional structural diagram of the prefabricated wall panel of this utility model.

[0018] In the diagram, 1. floor slab, 11. rubber support strip, 12. short sealing strip, 13. long sealing strip, 14. support pad, 15. partition pad, 16. joint insert bar, 2. cavity, 21. concrete sealing platform, 3. precast wall panel, 31. insert bar hole, 32. feed hole, 33. observation hole, 34. sealing plug, 35. expansion groove, 4. diagonal brace, 41. support. Detailed Implementation

[0019] Example 1, see appendix Figure 1-5 A high-strength assembly and docking structure for prefabricated wall panels 3 at the edge of a building is disclosed. Rubber support strips 11 are provided along the length of the outer edge of the building floor slab 1. The outer edge of the bottom surface of the prefabricated wall panel 3 presses against the rubber support strips 11, creating a reinforced gap between the prefabricated wall panel 3 and the floor slab 1. The rubber support strips 11 have a certain amount of elastic deformation, providing support for the prefabricated wall panel 3 while preventing it from bumping against the bottom surface of the wall panel. Short sealing strips 12 are inserted at both ends of the reinforced gap, and long sealing strips 13 are inserted along the inner edge of the reinforced gap. A cavity 2 is formed between the floor slab 1 and the prefabricated wall panel 3 through the long sealing strips, short sealing strips, and rubber support strips 11. The bottom surface of the prefabricated wall panel 3 is uniformly... A plurality of insertion holes 31 are evenly provided. The joint insertion bars 16 on the floor slab 1 are matched and inserted into the insertion holes 31. The size of the insertion holes is larger than the size of the joint insertion bars 16 to avoid the insertion bars blocking the insertion holes 31. This ensures that concrete can enter the cavity 2 below through the insertion holes 31, and concrete can also enter the gap between the insertion bars and the insertion holes 31, thereby improving the joint strength between the insertion bars and the precast wall panel 3. A feed hole 32 connected to the middle of the insertion holes 31 is provided on the side of the floor slab 1. Concrete material enters the insertion holes 31 through the feed hole 32. The upper and lower parts of the side of the precast wall panel 3 are provided with diagonal braces 4, and the lower end of the diagonal braces 4 is supported on the surface of the floor slab 1.

[0020] Both the short sealing strip 12 and the long sealing strip 13 are plastic corrugated hoses. The plastic corrugated hoses have a certain amount of deformation, so they can be easily inserted into the gap between the precast wall panel 3 and the floor slab 1.

[0021] A concrete sealing platform 21 is provided between the precast wall panel 3 and the floor slab 1 on the outer side of the long sealing strip 13. The concrete sealing platform 21 provides auxiliary sealing for the plastic corrugated hose, so as to avoid leakage due to insufficient support strength of the plastic corrugated hose.

[0022] Above the feed hole 32 is an observation hole 33 connected to the upper end of the insertion hole 31. Both the observation hole 33 and the feed hole 32 are equipped with sealing plugs 34. After the cavity 2 is filled with concrete, it will flow out from the observation hole 33 at the top. When the construction personnel know that the cavity 2 is filled with concrete, they will notify the injection operation.

[0023] The diagonal brace 4 is a two-way telescopic rod. The upper end of the two-way telescopic rod is hinged to a support 41. The upper support 41 is fixedly connected to the precast wall panel 3, and the lower support 41 is fixedly connected to the floor slab 1. The two-way telescopic rod is used to temporarily fix the precast wall panel 3. The two-way telescopic rod structure can easily adjust the verticality of the precast wall panel 3 to ensure the assembly quality.

[0024] During the construction of the precast wall panel 3 in this embodiment, the precast wall panel 3 is hoisted to the assembly position above the edge of the floor slab 1 by a crane and slowly lowered. The insertion holes 31 on the bottom surface of the precast wall panel 3 are inserted into the joint insertion bars 16. The bottom surface of the precast wall panel 3 is supported on the rubber support strip 11. At this time, a gap is formed between the precast wall panel 3 and the floor slab 1. Then, a two-way telescopic rod is installed on the inner side of the precast wall panel 3. The verticality of the precast wall panel 3 is adjusted by controlling the extension and retraction of the telescopic rod. After the adjustment is completed, short sealing strips and long sealing strips are inserted into both ends and the inner side of the gap in sequence, forming a cavity 2 between the precast wall panel 3 and the floor slab 1. Then, concrete is injected into the cavity 2 through the feed hole 32. After the concrete has solidified, the joint between the precast wall panel 3 and the floor slab 1 is reinforced. This method can ensure that the concrete has a high density in the cavity 2 and ensure the quality of the assembly construction.

[0025] Example 2, see appendix Figure 2 , 5 This embodiment is basically the same as the first embodiment, and the similarities will not be repeated. The difference is that: several support pads 14 are evenly placed on the bottom surface of the cavity 2, and the upper surface of the support pads 14 is supported on the bottom surface of the precast wall panel 3. The support pads are used to assist the rubber support strips 11 in supporting the precast wall, so as to ensure that the cast layer formed in the cavity 2 can reach the design thickness.

[0026] The cavity 2 is provided with a partition plate 15 with an isosceles trapezoidal cross-section in the middle. The partition plate 15 divides the cavity 2 into two small chambers. The division into two small chambers is used for segmented injection of concrete, which results in better injection uniformity and higher reinforcement quality of the joint. The bottom surface of the precast wall panel 3 is provided with an expansion groove 35 covering several insertion holes 31. The expansion groove 35 allows the later-poured concrete to partially enter the wall body, forming an embedded reinforcement structure, which further improves the firmness of the wall assembly.

Claims

1. A high-strength assembly and docking structure for prefabricated wall panels at the edge of a building, characterized in that: Rubber support strips are provided along the length of the outer edge of the building floor slab. The outer edge of the bottom surface of the precast wall panel is pressed onto the rubber support strips, forming a reinforced gap between the precast wall panel and the floor slab. Short sealing strips are inserted at both ends of the reinforced gap, and long sealing strips are inserted along the inner edge of the reinforced gap. A cavity is formed between the floor slab and the precast wall panel through the long sealing strips, short sealing strips, and rubber support strips. Several insertion holes are evenly provided on the bottom surface of the precast wall panel. The joint insertion bars on the floor slab are matched and inserted into the insertion holes. The size of the insertion holes is larger than the size of the joint insertion bars. A feed hole connected to the middle of the insertion holes is provided on the side of the floor slab. Diagonal braces are provided on the upper and lower parts of the side of the precast wall panel, and the lower ends of the diagonal braces are supported on the surface of the floor slab.

2. The high-strength assembly and docking structure for prefabricated wall panels at the building edge according to claim 1, characterized in that: Both the short and long sealing strips are made of plastic corrugated flexible tubing.

3. The high-strength assembly and docking structure for prefabricated wall panels at the building edge according to claim 2, characterized in that: A concrete sealing platform is provided between the precast wall panel and the floor slab on the outer side of the long sealing strip.

4. The high-strength assembly and docking structure for prefabricated wall panels at the building edge according to claim 1, characterized in that: Several support blocks are evenly placed on the bottom surface of the cavity, and the upper surface of the support blocks supports the bottom surface of the precast wall panel.

5. The high-strength assembly and docking structure for prefabricated wall panels at the building edge according to claim 1, characterized in that: The cavity is provided with a partition plate with an isosceles trapezoidal cross-section in the middle, which divides the cavity into two small chambers.

6. The high-strength assembly and docking structure for prefabricated wall panels at the building edge according to claim 1, characterized in that: The bottom surface of the precast wall panel is provided with an expansion groove covering several insertion holes for reinforcing bars.

7. The high-strength assembly and docking structure for prefabricated wall panels at the building edge according to claim 1, characterized in that: An observation hole is provided above the feed hole and connected to the upper end of the insertion hole. Both the observation hole and the feed hole are provided with sealing plugs.

8. The high-strength assembly and docking structure for prefabricated wall panels at the building edge according to claim 1, characterized in that: The diagonal brace is a bidirectional telescopic rod. The upper end of the bidirectional telescopic rod is hinged to a support, which is fixedly connected to the precast wall panel, and the lower end is fixedly connected to the floor slab.

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