Splicing seam structure between prefabricated laminated slabs

Abstract

The utility model relates to the technical field of building construction, and discloses a prefabricated laminated slab inter-slab abutted seam structure which comprises prefabricated slabs, the top of the right side of the prefabricated slab on the left side is fixedly connected with a plurality of through reinforcing steel bars, the outer walls of the through reinforcing steel bars are provided with locking reinforcing steel bars, and the right side of the top of each prefabricated slab is fixedly connected with a plurality of hoisting reinforcing steel bars. The top of the hoisting steel bar is fixedly connected with a steel bar sleeve, the inner wall of the steel bar sleeve is fixedly connected with a butt joint steel bar, and the edge of the right side of the top of the prefabricated slab is fixedly connected with a plurality of stabilizing steel bars. According to the utility model, the reinforcing steel bars are hoisted to fix the prefabricated slab, the through reinforcing steel bars are distributed at the abutted seams, the concrete mixed liquid is uniformly poured by using a fine aggregate concrete pump, the reinforcing steel bars and the reinforcing steel bar sleeves are locked to be inserted with the butt-joint reinforcing steel bars, the reinforcing steel bars are stabilized to increase the connection area, and the inclined plane of the prefabricated slab forms an inverted V-shaped space and is provided with tooth grooves, so that the shear strength, integrity and durability of the structure are enhanced; and requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a prefabricated composite board inter-board joint structure. Background Art

[0002] With the rapid development of modern building industrialization, prefabricated and assembled buildings have gradually become one of the mainstream trends due to their high efficiency and environmental protection. In practical applications, how to ensure the safety and durability of the connections between prefabricated components has always been the focus of the industry. Especially for prefabricated composite panels, an important building structural element, the quality of the joints between panels directly affects the overall performance of the entire building. Although the existing joint processing technology can meet the needs of initial use, the problems exposed in the long-term service environment are receiving more and more attention.

[0003] At present, joint filling materials include ordinary cement mortar and expansive cement mortar. These practices achieve the purpose of sealing and leveling by injecting cement-based materials with good fluidity into the gap between two prefabricated composite panels. Ordinary cement mortar is widely used in practice due to its low cost and easy availability. Ordinary cement mortar has a high shrinkage rate after curing and is prone to microcracks. Although expansive cement mortar can reduce shrinkage to a certain extent, it has not been popularized due to its high price and limited scope of application. No matter which type of cement mortar, it is difficult to completely avoid separation from the interface of the composite panel under the influence of long-term environmental factors.

[0004] After searching, the Chinese patent announcement number: CN219528104U discloses a prefabricated composite board, which relates to the technical field of composite boards; the utility model includes a composite board body, the top surface of the composite board body is pre-embedded with a first embedded rod, the top surface of the first embedded rod is fixed with a fixing frame, the top surface of the fixing frame is detachably provided with a connecting frame, the first embedded rod is installed inside it, the connecting frame is placed on the fixing frame, so that the shell can be inserted into the groove, and then the screw is rotated in the screw sleeve by rotating the rotating ring, and then the screw is rotated and connected to a rotating part, so that the rotating part slides down, so that the connecting rod can push the limit column to be inserted into the limit groove, and then the lifting ring can be fixed, so that the crane can lift the composite board. The panel body is transported to a high place in the building to complete the construction. After the transportation is completed, it is disassembled so that the lifting ring can be disassembled, thereby avoiding the lifting ring being too high during installation and the end being exposed after the concrete is poured, which affects the subsequent construction. However, the above structure does not take into account that over time, especially under conditions of frequent temperature changes and large loads, the original cement-based material will accumulate internal stress due to shrinkage deformation, thermal expansion and contraction, and eventually lead to cracking of the material itself and peeling between the prefabricated panels, resulting in insufficient safety and stability, insufficient convenience, lack of waterproof effect, inability to effectively disperse stress, and improve the durability of the structure, making it difficult to meet the needs. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a prefabricated composite panel inter-panel joint structure, aiming to improve the problems of insufficient safety and stability, insufficient convenience, lack of waterproof effect, inability to effectively disperse stress, and improve the durability of the structure in the existing technology.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a prefabricated composite plate inter-plate splicing structure, including a prefabricated plate, a plurality of through steel bars are fixedly connected to the right top of the left prefabricated plate, the outer wall of the through steel bars is provided with a locking steel bar, a plurality of lifting steel bars are fixedly connected to the right side of the top of the prefabricated plate, a steel bar sleeve is fixedly connected to the top of the lifting steel bar, a butt steel bar is fixedly connected to the inner wall of the steel bar sleeve, a plurality of stabilizing steel bars are fixedly connected at the right edge of the top of the prefabricated plate, a plurality of installation steel bars are fixedly connected to the inner wall of the prefabricated plate, a slope is provided at the right bottom of the prefabricated plate, a plurality of tooth grooves are provided on the outer wall of the slope, and an auxiliary mechanism is provided on the top of the prefabricated plate, which is used to assist fixation and improve waterproofing.

[0007] Through the above technical solution: there are through steel bars in the top area of ​​the right side of the left prefabricated panel, which not only penetrate the thickness of the entire prefabricated panel, but also some locking steel bars are specially set on its outer wall to ensure its stability in the structure. The lifting steel bars facilitate the lifting and installation process of the prefabricated panel. The purpose of the docking steel bar design is to effectively dock with other structural parts when the prefabricated panel is installed. The role of the stabilizing steel bar is to provide additional stability after the prefabricated panel is installed. The inner wall of the prefabricated panel is also evenly fixed with multiple installation steel bars. These installation steel bars provide convenience for the connection between the prefabricated panel and other structures. The inclined surface constitutes an inverted V-shaped space, and multiple grooves are evenly opened on its outer wall. These grooves are designed to increase the bite strength between the prefabricated panel and other structures. At the top of the prefabricated panel, an auxiliary mechanism is set to assist in fixing the prefabricated panel and improve its overall waterproof performance.

[0008] As a further description of the above technical solution:

[0009] The auxiliary mechanism includes a cast-in-place layer, the bottom of the cast-in-place layer is fixedly connected to the top of the prefabricated plate, a waterproof layer is provided on the top of the cast-in-place layer, a plurality of connecting bent bars are fixedly connected to the left side of the top of the prefabricated plate, the top of the connecting bent bars is fixedly connected to the connecting bars, the front and rear ends of the connecting bars are fixedly connected to a plurality of steel blocks, block holes are provided on the steel blocks, and a plurality of bone grooves are provided on the front and rear sides of the bottom of the prefabricated plate.

[0010] Through the above technical solution: the auxiliary mechanism is mainly composed of a cast-in-place layer, the bottom of the cast-in-place layer is tightly combined with the top of the prefabricated board through a firm connection method, and a waterproof layer is set on the top of the cast-in-place layer to ensure the waterproof performance of the entire structure. On the left side of the top of the prefabricated board, a plurality of curved connecting bent bars are evenly fixed and connected, and the tops of these connecting bent bars are firmly connected to the connecting bars. The front and rear ends of the connecting bars are fixed with a plurality of steel blocks, and these steel blocks are provided with specially designed block holes to facilitate subsequent construction and connection. A plurality of bone grooves are specially opened on the front and rear sides of the bottom of the prefabricated board. These bone grooves not only enhance the structural strength of the prefabricated board, but also provide convenience for connection with other components.

[0011] As a further description of the above technical solution:

[0012] A first keel is provided at the bottom of the bone groove on the front side, and a second keel is provided at the top of the bone groove on the rear side.

[0013] Through the above technical solution: a structural component called keel one is placed at the bottom of the front bone groove, and another structural component called keel two is installed at the top of the rear bone groove, both of which provide support for the installation of the plate.

[0014] As a further description of the above technical solution:

[0015] A plurality of first fixing holes are provided on the left and right sides of the first keel, and a plurality of second fixing holes are provided on the left and right sides of the second keel.

[0016] Through the above technical solution: In order to further enhance the stability of the structure and facilitate assembly, multiple fixing holes 1 are carefully opened on the left and right sides of keel 1, and multiple fixing holes 2 are also designed on the left and right sides of keel 2 to facilitate connection and fixation with other components.

[0017] As a further description of the above technical solution:

[0018] A fixing column 1 is installed on the inner wall of the fixing hole 1, and the fixing column 1 is made of high-strength alloy.

[0019] Through the above technical solution: in order to ensure the firmness of the connection, the inner wall of the fixing hole 1 is specially installed with fixing columns 1, which are made of high-strength alloy material, thereby ensuring the strength and durability of the overall structure.

[0020] As a further description of the above technical solution:

[0021] A second fixing column is installed on the inner wall of the second fixing hole, and the first fixing column and the second fixing column are stacked and arranged.

[0022] Through the above technical solution: the fixing column 2 is carefully installed in the inner wall of the fixing hole 2, and the fixing column 1 and the fixing column 2 are cleverly arranged in a row, ensuring the stability and reliability of the structure.

[0023] As a further description of the above technical solution:

[0024] A plurality of decorative strips 1 are fixedly connected to the left side of the top of the waterproof layer, and the decorative strips 1 are made of rubber.

[0025] Through the above technical solution: we fixedly connected a plurality of decorative strips on the top left part of the waterproof layer. These decorative strips are made of rubber material, which not only has good waterproof performance, but also adds beauty to the overall appearance.

[0026] As a further description of the above technical solution:

[0027] A plurality of decorative strips 2 are fixedly connected to the right side of the top of the waterproof layer, and the decorative strips 2 are arranged in parallel.

[0028] Through the above technical solution: on the top right part of the waterproof layer, we fixedly connected multiple decorative strips 2, which were carefully designed to be arranged in parallel, further enhancing the overall visual effect and coordination.

[0029] The utility model has the following beneficial effects:

[0030] 1. In the present invention, hoisting steel bars are used to fix the prefabricated panels, through steel bars are arranged at the joints, and a fine stone concrete pump is used to evenly pour concrete mixture. The steel bars and steel sleeves are locked and interlaced with the butt steel bars to achieve a stable and integrated structure. The stable steel bars increase the connection area. The inclined surface of the prefabricated panel forms an inverted V-shaped space and tooth grooves are opened to enhance the shear strength, integrity and durability of the structure to ensure that it meets the use requirements.

[0031] 2. In the present invention, a cast-in-place layer and a waterproof layer are constructed on the prefabricated panel to prevent water from entering. At the same time, connecting bent bars and steel blocks are provided to enhance the structural firmness. The block holes on the steel blocks expand the connection area, and the bone groove design simplifies the lifting process. This structure is both convenient and stable, while improving the waterproof performance and meeting auxiliary needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a front perspective view of a cast-in-situ layer of a prefabricated composite slab inter-panel joint structure proposed in the present invention;

[0033] Figure 2 This is a partial structural breakdown diagram of a prefabricated panel with a joint structure between panels proposed in the present invention;

[0034] Figure 3This is a partial structural diagram of the connecting reinforcement of the joint structure between prefabricated composite panels proposed in the utility model;

[0035] Figure 4 This is a partial structural diagram of a prefabricated panel with a joint structure between panels proposed by the present invention;

[0036] Figure 5 This is a schematic diagram of the partial structure of a prefabricated composite panel inter-panel joint structure keel proposed in the present invention.

[0037] Legend:

[0038] 1. Precast slab; 2. Auxiliary mechanism; 201. Cast-in-place layer; 202. Waterproof layer; 203. Connecting bent bars; 204. Connecting bars; 205. Steel bar blocks; 206. Block holes; 207. Bone grooves; 3. Through bars; 4. Locking bars; 5. Lifting bars; 6. Steel bar sleeves; 7. Butt joint bars; 8. Stabilizing bars; 9. Installing bars; 10. Inclined surface; 11. Tooth grooves; 12. Keel 1; 13. Keel 2; 14. Fixing hole 1; 15. Fixing hole 2; 16. Fixing column 1; 17. Fixing column 2; 18. Decorative strip 1; 19. Decorative strip 2. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Please see the attached Figure 1 , Attachment Figure 2 and attached Figure 3 , the utility model provides an embodiment: a prefabricated composite plate inter-plate splicing structure, including a prefabricated plate 1, the right top of the left prefabricated plate 1 is fixedly connected with a plurality of through steel bars 3, the outer wall of the through steel bars 3 is provided with a locking steel bar 4, the top right side of the prefabricated plate 1 is fixedly connected with a plurality of lifting steel bars 5, the top of the lifting steel bars 5 is fixedly connected with a steel bar sleeve 6, the inner wall of the steel bar sleeve 6 is fixedly connected with a butt steel bar 7, the top right edge of the prefabricated plate 1 is fixedly connected with a plurality of stabilizing steel bars 8, the inner wall of the prefabricated plate 1 is fixedly connected with a plurality of installation steel bars 9, the right bottom of the prefabricated plate 1 is provided with an inclined surface 10, the outer wall of the inclined surface 10 is provided with a plurality of tooth grooves 11, and the top of the prefabricated plate 1 is provided with an auxiliary mechanism 2, which is used to assist fixation and improve waterproofing;

[0041] Specifically, the right top area of ​​the left prefabricated panel 1 has through steel bars 3 firmly fixed in the corresponding position. These through steel bars 3 not only penetrate the thickness of the entire prefabricated panel 1, but also have some locking steel bars 4 specially set on its outer wall to ensure its stability in the structure. The lifting steel bars 5 are also fixedly connected in appropriate positions to facilitate the lifting and installation process of the prefabricated panel 1. The inner wall of the steel bar sleeve 6 is fixedly connected with the docking steel bars 7. The purpose of this design is to effectively dock the prefabricated panel 1 with other structural parts when it is installed. At the top right edge of the prefabricated panel 1, the role of the stabilizing steel bar 8 is In order to provide additional stability after the prefabricated panel 1 is installed, the inner wall of the prefabricated panel 1 is also evenly fixed with multiple installation steel bars 9. These installation steel bars 9 facilitate the connection between the prefabricated panel 1 and other structures. At the bottom right side of the prefabricated panel 1, we noticed that there is a slope 10. This slope 10 constitutes an inverted V-shaped space, and multiple grooves 11 are evenly opened on its outer wall. These grooves 11 are designed to increase the bite strength between the prefabricated panel 1 and other structures. At the top of the prefabricated panel 1, an auxiliary mechanism 2 is set to assist in fixing the prefabricated panel 1 and improve its overall waterproof performance.

[0042] Please see the attached Figure 1 , Attachment Figure 3 and attached Figure 4 The auxiliary mechanism 2 includes a cast-in-situ layer 201, the bottom of the cast-in-situ layer 201 is fixedly connected to the top of the precast panel 1, a waterproof layer 202 is provided on the top of the cast-in-situ layer 201, a plurality of connecting bent ribs 203 are fixedly connected to the left side of the top of the precast panel 1, a connecting rib 204 is fixedly connected to the top of the connecting bent rib 203, a plurality of steel bars 205 are fixedly connected to the front and rear ends of the connecting rib 204, a block hole 206 is opened on the steel bar block 205, and a plurality of bone grooves 207 are opened on the front and rear sides of the bottom of the precast panel 1;

[0043] Specifically, the auxiliary mechanism 2 is mainly composed of a cast-in-place layer 201, the bottom of which is tightly combined with the top of the precast panel 1 by a firm connection. A waterproof layer 202 is provided on the top of the cast-in-place layer 201 to ensure the waterproof performance of the entire structure. On the left side of the top of the precast panel 1, a plurality of curved connecting ribs 203 are evenly fixedly connected, and the tops of these connecting ribs 203 are firmly connected to the connecting ribs 204. The front and rear ends of the connecting ribs 204 are fixedly connected with a plurality of steel blocks 205, and these steel blocks 205 are provided with specially designed block holes 206 to facilitate subsequent construction and connection. A plurality of bone grooves 207 are specially provided on the front and rear sides of the bottom of the precast panel 1. These bone grooves 207 not only enhance the structural strength of the precast panel 1, but also provide convenience for connection with other components.

[0044] Please see the attached Figure 1 and attached Figure 5A keel 12 is provided at the bottom of the front bone groove 207, and a keel 2 13 is provided at the top of the rear bone groove 207. A plurality of fixing holes 14 are provided on the left and right sides of the keel 12, and a plurality of fixing holes 2 15 are provided on the left and right sides of the keel 2 13. A fixing column 16 is installed on the inner wall of the fixing hole 14. The fixing column 16 is made of a high-strength alloy.

[0045] Specifically, a structural component called keel 12 is placed at the bottom of the front bone groove 207, and another structural component called keel 2 13 is installed at the top of the rear bone groove 207. Both provide support for the installation of the plate. In order to further enhance the stability of the structure and facilitate assembly, multiple fixing holes 14 are carefully opened on the left and right sides of keel 12, and multiple fixing holes 2 15 are also designed on the left and right sides of keel 2 13 to facilitate connection and fixation with other components. In order to ensure the firmness of the connection, fixing columns 16 are specially installed on the inner wall of the fixing hole 14. These fixing columns 16 are made of high-strength alloy material, thereby ensuring the strength and durability of the overall structure.

[0046] Please see the attached Figure 1 and attached Figure 5 , the inner wall of the second fixing hole 15 is installed with a second fixing column 17, the first fixing column 16 and the second fixing column 17 are stacked and arranged, the top left side of the waterproof layer 202 is fixedly connected with a plurality of first decorative strips 18, the first decorative strips 18 are made of rubber, and the top right side of the waterproof layer 202 is fixedly connected with a plurality of second decorative strips 19, and the second decorative strips 19 are arranged in parallel;

[0047] Specifically, a fixing column 2 17 is carefully installed in the inner wall of the fixing hole 2 15, and the fixing column 16 and the fixing column 2 17 are cleverly arranged in a row to ensure the stability and reliability of the structure. On the top left part of the waterproof layer 202, we fixedly connected a plurality of decorative strips 18. These decorative strips 18 are made of rubber material, which not only has good waterproof performance, but also adds beauty to the overall appearance. On the top right part of the waterproof layer 202, we fixedly connected a plurality of decorative strips 2 19. These decorative strips 2 19 are carefully designed to be arranged in parallel, further enhancing the overall visual effect and coordination.

[0048] Working principle: The structure is hoisted by hoisting steel bars 5. When the precast panel 1 is hoisted and positioned, the seam surface is provided with neatly arranged and firmly fixed through steel bars 3. The fine stone concrete pumping equipment is started, and the prepared concrete mixture is slowly and evenly poured into the joint area. After the concrete is fully hardened, the locking steel bars 4 can be used to limit the position on both sides, and the steel sleeves 6 on the hoisting steel bars 5 can be inserted into the butt steel bars 7 to make the structures on both sides more integrated, and the stable steel bars 8 increase the connection area. The inclined surfaces 10 of the precast panels 1 on both sides form an inverted V-shaped space, and tooth grooves 11 are opened on the inclined surfaces 10 to form a stable and reliable connection node, thereby enhancing the shear strength and integrity of the splicing, and effectively dispersing stress, improving the durability of the structure, and meeting the use requirements.

[0049] By forming a cast-in-place layer 201 on the prefabricated panel 1 and setting a waterproof layer 202 on the top thereof to prevent the influence of water, connecting bent ribs 203 are also set on the prefabricated panel 1. The connecting bent ribs 203 are connected in series by connecting ribs 204. The steel blocks 205 on both sides of the connecting ribs 204 make the cement more firm after solidification. The block holes 206 designed on the steel blocks 205 make the connection surface larger, and the design of the bone grooves 207 can make the lifting easier. Such a structure improves convenience, increases structural stability, increases waterproofness, and meets auxiliary needs.

[0050] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A prefabricated composite panel joint structure, comprising a prefabricated panel (1), characterized in that: The top of the left precast panel (1) is fixedly connected to a plurality of through steel bars (3), the outer wall of the through steel bars (3) is provided with a locking steel bar (4), the top right side of the precast panel (1) is fixedly connected to a plurality of hanging steel bars (5), the top of the hanging steel bars (5) is fixedly connected to a steel bar sleeve (6), the inner wall of the steel bar sleeve (6) is fixedly connected to a docking steel bar (7), the top right edge of the precast panel (1) is fixedly connected to a plurality of stabilizing steel bars (8), the inner wall of the precast panel (1) is fixedly connected to a plurality of installation steel bars (9), the bottom right side of the precast panel (1) is provided with an inclined surface (10), the outer wall of the inclined surface (10) is provided with a plurality of tooth grooves (11), and the top of the precast panel (1) is provided with an auxiliary mechanism (2), and the auxiliary mechanism (2) is used for auxiliary fixation and improving waterproofing.

2. The prefabricated composite panel joint structure according to claim 1, characterized in that: The auxiliary mechanism (2) comprises a cast-in-place layer (201), the bottom of the cast-in-place layer (201) is fixedly connected to the top of the precast plate (1), a waterproof layer (202) is provided on the top of the cast-in-place layer (201), a plurality of connecting bent bars (203) are fixedly connected to the left side of the top of the precast plate (1), a connecting bar (204) is fixedly connected to the top of the connecting bent bar (203), a plurality of steel bars (205) are fixedly connected to the front and rear ends of the connecting bar (204), a block hole (206) is provided on the steel bar block (205), and a plurality of bone grooves (207) are provided on the front and rear sides of the bottom of the precast plate (1).

3. The prefabricated composite panel joint structure according to claim 2, characterized in that: A first keel (12) is provided at the bottom of the bone groove (207) on the front side, and a second keel (13) is provided at the top of the bone groove (207) on the rear side.

4. The prefabricated composite panel joint structure according to claim 3, characterized in that: A plurality of fixing holes (14) are provided on both the left and right sides of the keel (12), and a plurality of fixing holes (15) are provided on both the left and right sides of the keel (13).

5. The prefabricated composite panel joint structure according to claim 4, characterized in that: A fixing column 1 (16) is installed on the inner wall of the fixing hole 1 (14), and the fixing column 1 (16) is made of a high-strength alloy.

6. The prefabricated composite panel joint structure according to claim 5, characterized in that: The inner wall of the second fixing hole (15) is provided with a second fixing column (17), and the first fixing column (16) and the second fixing column (17) are stacked and arranged.

7. The prefabricated composite panel joint structure according to claim 2, characterized in that: A plurality of decorative strips (18) are fixedly connected to the left side of the top of the waterproof layer (202), and the decorative strips (18) are made of rubber.

8. The prefabricated composite panel joint structure according to claim 2, characterized in that: A plurality of decorative strips (19) are fixedly connected to the right side of the top of the waterproof layer (202), and the decorative strips (19) are arranged in parallel.

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