Prefabricated laminated slab abutted seam structure

Abstract

The utility model provides a prefabricated laminated slab abutted seam structure. The prefabricated laminated slab abutted seam structure comprises a supporting assembly. The first mortar stop block is arranged on the supporting assembly, and one of a first inserting block and a first inserting groove is formed in the first mortar stop block; one side, facing the first mortar stop block, of the first laminated plate is provided with the other one of a first insertion block and a first insertion groove, and the first insertion block can be inserted into the first insertion groove; the second mortar check block is arranged on the side, away from the first laminated slab, of the first mortar check block, a splicing groove is reserved between the second mortar check block and the first mortar check block, and one of a second insertion block and an insertion groove is formed in the side, back to the splicing groove, of the second mortar check block; the other one of a second inserting block and a second inserting groove is arranged on the side, facing the second mortar check block, of the second laminated plate, and the second inserting block can be inserted into the second inserting groove. The first mortar check block and the second mortar check block are arranged, the inserting blocks and the inserting grooves are designed between the laminated plate and the mortar check blocks to be matched, mortar leakage in the concrete pouring process is effectively prevented, the splicing grooves are formed, later pouring is facilitated, the sealing performance and the connecting strength of splicing seams are improved, and mortar leakage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a precast panel splicing structure. Background Technology

[0002] Precast composite slabs are widely used in prefabricated building construction due to their advantages such as high efficiency and environmental friendliness. The joint treatment of precast composite slabs is a crucial step in construction, and its quality directly affects the integrity and durability of the structure. Currently, the common construction method is to use double-sided tape to adhere to the surface of the precast composite slab joint support components before installing the composite slabs.

[0003] However, the above construction method has the following problems: the precast composite slabs are bonded to the supporting components (such as aluminum formwork) using double-sided adhesive, resulting in poor sealing. During concrete pouring, due to the limited adhesiveness of the double-sided adhesive, grout leakage easily occurs at the joints. Grout leakage not only affects the quality of the structure but may also lead to insufficient concrete strength at the joints, affecting the overall integrity of the structure. Furthermore, the use of double-sided adhesive cannot provide effective reinforcement and precise positioning for the precast composite slabs. During construction, problems such as inconsistent top elevations of the composite slabs or deformation of the aluminum formwork trusses can easily occur, further reducing the sealing at the joints. Summary of the Invention

[0004] To address the aforementioned technical problems, this utility model proposes a precast composite slab joint structure. By optimizing the joint connection method and sealing structure, it can significantly improve the joint sealing performance and connection strength, achieving precise positioning and reinforcement of the precast composite slab. Simultaneously, it can effectively reduce grout leakage, lower the cost of subsequent grinding and repair, and improve construction efficiency and structural durability.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A precast composite slab joint structure includes:

[0007] Support components;

[0008] A first mortar block is provided on the support assembly, and the first mortar block is provided with one of a first insert and a first slot.

[0009] The first composite plate has one of a first insert and a first slot on the side facing the first mortar block. The first composite plate can be placed on the support assembly and moved to abut against the first mortar block so that the first insert is inserted into the first slot.

[0010] The second mortar block is located on the side of the first mortar block away from the first composite plate. A splicing groove is reserved between the second mortar block and the first mortar block. The side of the second mortar block facing away from the splicing groove is provided with one of the second insert and the slot.

[0011] The second composite plate has a second insert and the other of the second slot on the side facing the second mortar block. The second composite plate can be placed on the support assembly and moved to abut against the second mortar block so that the second insert is inserted into the second slot.

[0012] This utility model provides a precast composite slab joint structure. By setting a first mortar block and a second mortar block, and designing a matching structure of inserts and slots between the composite slab and the mortar block, it can effectively prevent grout leakage during concrete pouring and improve the sealing of the joint. Furthermore, the matching design of the inserts and slots makes the connection between the composite slab and the mortar block tighter, enhancing the integrity and stability of the joint and reducing the risk of structural deformation due to loosening of the joint during construction. At the same time, the joint structure is rationally designed; during construction, the composite slab only needs to be moved to abut against the mortar block, allowing the inserts to be inserted into the slots to complete the splicing. The operation is simple and convenient, improving construction efficiency and reducing construction difficulty.

[0013] Furthermore, it also includes mortar baffles, the number of which is two, and the two mortar baffles are respectively connected to the opposite ends of the two first mortar blocks and the second mortar blocks to close the opposite ends of the splicing groove.

[0014] By adopting the above technical solution, the two additional mortar baffles are connected to the opposite ends of the first mortar baffle and the second mortar baffle respectively, sealing the opposite ends of the splicing groove and forming a relatively closed splicing space, which further prevents concrete slurry from seeping out from both ends of the splicing joint and effectively avoids the occurrence of slurry leakage.

[0015] Furthermore, the first composite plate has a first clearance notch on each of its opposite sides facing the mortar baffle, and the mortar baffle can be spliced ​​with the first composite plate through the first clearance notch; the second composite plate has a second clearance notch on each of its opposite sides facing the mortar baffle, and the mortar baffle can be spliced ​​with the second composite plate through the second clearance notch.

[0016] By adopting the above technical solution, the first and second clearance notches provided on the first and second composite plates facilitate the splicing of the mortar baffle and the composite plate, enabling the mortar baffle to be smoothly spliced ​​with the composite plate through the clearance notches, and further optimizing the detailed design of the splicing joint.

[0017] Furthermore, a first pressing block is provided on the side of the first composite plate facing the first mortar block, and the first pressing block is used to abut against the upper end surface of the first mortar block.

[0018] Furthermore, the second composite plate is provided with a second pressing block on the side facing the second mortar block, and the second pressing block is used to abut against the upper end surface of the second mortar block.

[0019] By adopting the above technical solution, the setting of the first and second pressure blocks enables the first and second composite plates to fit tightly against the upper surface of the mortar block when they come into contact with the mortar block. This increases the contact area and pressure between the composite plate and the mortar block, thereby improving the compressive strength of the joint and reducing the risk of deformation and cracking of the joint under stress.

[0020] Furthermore, the first pressing block is provided with a first reinforcing bar on the side facing the splicing groove, and the second pressing block is provided with a second reinforcing bar on the side facing the splicing groove. The first reinforcing bar and the second reinforcing bar can be tied above the first mortar block and the second mortar block.

[0021] By adopting the above technical solution, first and second reinforcing bars are respectively set on the first and second pressure blocks, and the reinforcing bars can be tied above the mortar block to form a reinforcing bar skeleton, which effectively enhances the structural strength of the joint and improves the load-bearing capacity and crack resistance of the joint.

[0022] Furthermore, the first pressing block has a first chamfer on its lower end face facing the first mortar block; the second pressing block has a second chamfer on its lower end face facing the second mortar block.

[0023] The above technical solution, with its first and second chamfers on the lower end faces of the first and second pressure blocks respectively, provides excellent guidance. During installation, the chamfers guide the pressure blocks to smoothly contact the mortar blocks or composite slabs, reducing alignment difficulties and making the splicing process smoother.

[0024] Furthermore, there are multiple first inserts and first slots, with multiple first slots spaced apart on the first mortar block and multiple first inserts spaced apart on the first composite plate; there are multiple second inserts and second slots, with multiple second slots spaced apart on the second mortar block and multiple second inserts spaced apart on the second composite plate.

[0025] The above technical solution involves multiple first inserts and first slots, as well as multiple second inserts and second slots, arranged at intervals. This design increases the number of connection points between the composite plate and the mortar block, making the connection more robust, effectively enhancing the connection strength of the joint, and reducing the risk of loosening and deformation of the joint under stress.

[0026] Furthermore, the cross-sectional dimensions of the first insert block increase progressively from near the first slot to far away from the first slot; the cross-sectional dimensions of the second insert block increase progressively from near the second slot to far away from the second slot.

[0027] Using the above technical solution, the cross-sectional size of the insert increases from near the slot to far away from the slot. This design makes it easier for the insert to enter the slot, reduces the initial contact friction between the insert and the slot, and thus reduces the difficulty of insertion.

[0028] Furthermore, the support assembly includes a support plate and a support base, with the first mortar block and the second mortar block both disposed on the support plate, and the support base disposed on the side of the support plate away from the first mortar block and the second mortar block.

[0029] The beneficial effects of this utility model are:

[0030] 1. This utility model, by setting a first mortar block and a second mortar block, and designing a matching structure of inserts and slots between the composite plate and the mortar block, can effectively prevent grout leakage during concrete pouring and improve the sealing of the joints.

[0031] 2. This utility model, through the cooperative design of the insert and the slot, makes the connection between the composite plate and the mortar block tighter, enhances the integrity and stability of the joint, and reduces the risk of structural deformation caused by loosening of the joint during construction.

[0032] 3. The joint structure is reasonably designed. During construction, the composite plate only needs to be moved to abut against the mortar block so that the insert can be inserted into the slot to complete the splicing. The operation is simple and convenient, which improves construction efficiency and reduces construction difficulty. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of this utility model;

[0035] Figure 2 This is an exploded structural diagram of the present invention;

[0036] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0037] Figure 4 for Figure 3 Enlarged structural diagram of area A of the precast composite slab splicing structure.

[0038] In the attached diagram: 100, support component; 110, support plate; 120, support base; 200, first mortar block; 210, first insert block; 220, first slot; 300, first composite plate; 310, first clearance notch; 320, first pressure block; 330, first reinforcing bar; 340, first chamfer; 400, second mortar block; 410, second insert block; 420, second slot; 500, splicing groove; 600, second composite plate; 610, second clearance notch; 620, second pressure block; 630, second reinforcing bar; 640, second chamfer; 700, mortar block. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] like Figure 1 and Figure 2As shown in Embodiment 1 of this utility model, a precast composite slab joint structure includes a support assembly 100, a first mortar block 200, a first composite slab 300, a second mortar block 400, and a second composite slab 600. The first mortar block 200 is disposed on the support assembly 100 and has one of a first insert 210 and a first slot 220. The first composite slab 300 has the other of the first insert 210 and the first slot 220 on the side facing the first mortar block 200. The first composite slab 300 can be placed on the support assembly 100 and moved to abut against the first mortar block 200, so that the first insert 210 is inserted into the first slot 220. The second mortar block 400 is disposed away from the first composite slab. On one side of 300, a splicing groove 500 is reserved between the second mortar block 400 and the first mortar block 200. The side of the second mortar block 400 facing away from the splicing groove 500 is provided with one of the second insert 410 and the second slot 420. The side of the second composite plate 600 facing the second mortar block 400 is provided with the other of the second insert 410 and the second slot 420. The second composite plate 600 can be placed on the support assembly 100 and moved to abut against the second mortar block 400 so that the second insert 410 is inserted into the second slot 420.

[0041] As can be seen from the above, the precast composite slab splicing structure provided by this utility model, by setting a first mortar stop 200 and a second mortar stop 400, and designing a matching structure of inserts and slots between the composite slab and the mortar stop, can effectively prevent grout leakage during concrete pouring and improve the sealing of the splice. Furthermore, the matching design of the inserts and slots makes the connection between the composite slab and the mortar stop more compact, enhancing the integrity and stability of the splice and reducing the risk of structural deformation caused by loosening of the splice during construction. At the same time, the splicing structure is reasonably designed; during construction, the composite slab only needs to be moved to abut against the mortar stop, allowing the inserts to be inserted into the slots to complete the splicing. The operation is simple and convenient, improving construction efficiency and reducing construction difficulty.

[0042] Example 2 differs from Example 1 in that, as Figure 1 and Figure 2 As shown, it also includes mortar baffles 700. There are two mortar baffles 700. The two mortar baffles 700 are respectively connected to the opposite ends of the first mortar block 200 and the second mortar block 400 to close the opposite ends of the splicing groove 500.

[0043] By adopting the above technical solution, the two additional mortar baffles 700 are respectively connected to the opposite ends of the first mortar baffle 200 and the second mortar baffle 400, sealing the opposite ends of the splicing groove 500 and forming a relatively closed splicing space, which further prevents concrete slurry from seeping out from both ends of the splicing joint and effectively avoids the occurrence of slurry leakage.

[0044] In one embodiment, the first composite plate 300 is provided with first clearance notches 310 on both sides facing the mortar baffle 700, and the mortar baffle 700 can be spliced ​​with the first composite plate 300 through the first clearance notches 310; the second composite plate 600 is provided with second clearance notches 610 on both sides facing the mortar baffle 700, and the mortar baffle 700 can be spliced ​​with the second composite plate 600 through the second clearance notches 610.

[0045] By adopting the above technical solution, the first clearance notch 310 and the second clearance notch 610 provided on the first composite plate 300 and the second composite plate 600 facilitate the splicing of the mortar baffle 700 and the composite plate, enabling the mortar baffle 700 to be smoothly spliced ​​with the composite plate through the clearance notch, and further optimizing the detailed design of the splice connection.

[0046] Example 3 differs from Example 2 in that, as Figure 1 and Figure 2 As shown, the first composite plate 300 has a first pressing block 320 on the side facing the first mortar block 200, and the first pressing block 320 is used to abut against the upper end surface of the first mortar block 200; the second composite plate 600 has a second pressing block 620 on the side facing the second mortar block 400, and the second pressing block 620 is used to abut against the upper end surface of the second mortar block 400.

[0047] By adopting the above technical solution, the arrangement of the first pressing block 320 and the second pressing block 620 enables the first composite plate 300 and the second composite plate 600 to fit tightly against the upper surface of the mortar block through the pressing block when they come into contact with the mortar block. This increases the contact area and pressure between the composite plate and the mortar block, thereby improving the compressive strength of the joint and reducing the risk of deformation and cracking of the joint under stress.

[0048] Example 4 differs from Example 3 in that, as Figure 1 and Figure 2 As shown, the first pressing block 320 has a first reinforcing bar 330 on the side facing the splicing groove 500, and the second pressing block 620 has a second reinforcing bar 630 on the side facing the splicing groove 500. The first reinforcing bar 330 and the second reinforcing bar 630 can be tied above the first mortar block 200 and the second mortar block 400.

[0049] By adopting the above technical solution, a first steel bar 330 and a second steel bar 630 are respectively set on the first pressure block 320 and the second pressure block 620, and the steel bars can be tied above the mortar block to form a steel bar skeleton, which effectively enhances the structural strength of the joint and improves the load-bearing capacity and crack resistance of the joint.

[0050] Example 5 differs from Example 3 in that, as Figure 3 and Figure 4 As shown, in one embodiment, the first pressing block 320 has a first chamfer 340 on its lower end face facing the first mortar block 200; the second pressing block 620 has a second chamfer 640 on its lower end face facing the second mortar block 400.

[0051] The above technical solution, with its first chamfer 340 and second chamfer 640 respectively on the lower end faces of the first pressure block 320 and the second pressure block 620, provides a good guiding function. During installation, the chamfers guide the pressure blocks to smoothly contact the mortar blocks or composite slabs, reducing alignment difficulties and making the splicing process smoother.

[0052] Example 6 differs from Example 1 in that there are multiple first inserts 210 and first slots 220, with multiple first slots 220 spaced apart on the first mortar block 200 and multiple first inserts 210 spaced apart on the first composite plate 300; there are multiple second inserts 410 and second slots 420, with multiple second slots 420 spaced apart on the second mortar block 400 and multiple second inserts 410 spaced apart on the second composite plate 600.

[0053] Using the above technical solution, there are multiple first inserts 210 and first slots 220, as well as multiple second inserts 410 and second slots 420, which are spaced apart. This design increases the number of connection points between the composite plate and the mortar block, making the connection more solid, effectively enhancing the connection strength of the joint, and reducing the risk of loosening and deformation of the joint under stress.

[0054] Example 7 differs from Example 6 in that the cross-sectional dimensions of the first insert 210 increase progressively from near the first slot 220 to far away from the first slot 220; and the cross-sectional dimensions of the second insert 410 increase progressively from near the second slot 420 to far away from the second slot 420.

[0055] Using the above technical solution, the cross-sectional size of the insert increases from near the slot to far away from the slot. This design makes it easier for the insert to enter the slot, reduces the initial contact friction between the insert and the slot, and thus reduces the difficulty of insertion.

[0056] Example 8 differs from Example 6 in that, as Figure 1 and Figure 2 As shown, the support assembly 100 includes a support plate 110 and a support base 120. The first mortar block 200 and the second mortar block 400 are both disposed on the support plate 110, and the support base 120 is disposed on the side of the support plate 110 away from the first mortar block 200 and the second mortar block 400.

[0057] This utility model discloses a precast composite slab joint structure, primarily applied in prefabricated building construction. By optimizing the joint connection method and sealing structure, it significantly improves the joint's sealing performance and connection strength, enabling precise positioning and reinforcement of the precast composite slab. Simultaneously, it effectively reduces grout leakage, lowers the cost of subsequent grinding and repair, and improves construction efficiency and structural durability.

[0058] The above description is merely 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 foregoing embodiments, those skilled in the art should understand that any modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions of some or all of the technical features thereof, within the spirit and principles of the present invention, 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 invention, and should all be included within the protection scope of the present invention.

Claims

1. A prefabricated composite slab joint structure, characterized in that, include: Support components (100); A first mortar block (200) is provided on the support assembly (100), and the first mortar block (200) is provided with one of a first insert (210) and a first slot (220); The first composite plate (300) has one of a first insert (210) and a first slot (220) on one side facing the first mortar block (200). The first composite plate (300) can be placed on the support assembly (100) and moved to abut against the first mortar block (200) so that the first insert (210) is inserted into the first slot (220). The second mortar block (400) is disposed on the support assembly (100) and located on the side of the first mortar block (200) away from the first composite plate (300). A splicing groove (500) is reserved between the second mortar block (400) and the first mortar block (200). The side of the second mortar block (400) facing away from the splicing groove (500) is provided with one of the second insert (410) and the second slot (420). The second composite plate (600) has a second insert (410) and the other of a second slot (420) on one side facing the second mortar block (400). The second composite plate (600) can be placed on the support assembly (100) and moved to abut against the second mortar block (400) so that the second insert (410) is inserted into the second slot (420).

2. The precast composite slab joint structure according to claim 1, characterized in that: It also includes two mortar baffles (700), which are respectively disposed at both ends of the support assembly (100) to connect the two first mortar blocks (200) and the two second mortar blocks (400) to close the two opposite ends of the splicing groove (500).

3. The precast composite slab joint structure according to claim 2, characterized in that: The first composite plate (300) has a first clearance notch (310) on each of its opposite sides facing the mortar baffle (700), and the mortar baffle (700) can be spliced ​​with the first composite plate (300) through the first clearance notch (310); the second composite plate (600) has a second clearance notch (610) on each of its opposite sides facing the mortar baffle (700), and the mortar baffle (700) can be spliced ​​with the second composite plate (600) through the second clearance notch (610).

4. The precast composite slab joint structure according to any one of claims 1 to 3, characterized in that: The first composite plate (300) has a first pressing block (320) on the side facing the first mortar block (200), and the first pressing block (320) is used to abut against the upper surface of the first mortar block (200).

5. The precast composite slab joint structure according to claim 4, characterized in that: The second composite plate (600) has a second pressure block (620) on the side facing the second mortar block (400), and the second pressure block (620) is used to abut against the upper end surface of the second mortar block (400).

6. The precast composite slab joint structure according to claim 5, characterized in that: The first pressure block (320) is provided with a first reinforcing bar (330) on the side facing the splicing groove (500), and the second pressure block (620) is provided with a second reinforcing bar (630) on the side facing the splicing groove (500). The first reinforcing bar (330) and the second reinforcing bar (630) can be tied above the first mortar block (200) and the second mortar block (400).

7. The precast composite slab joint structure according to claim 5 or 6, characterized in that: The first pressing block (320) has a first chamfer (340) on its lower end face facing the first mortar block (200); the second pressing block (620) has a second chamfer (640) on its lower end face facing the second mortar block (400).

8. The precast composite slab joint structure according to any one of claims 1 to 3, 5 and 6, characterized in that: The number of the first insert (210) and the first slot (220) is multiple, with multiple first slots (220) spaced apart on the first mortar block (200) and multiple first inserts (210) spaced apart on the first composite plate (300); the number of the second insert (410) and the second slot (420) is multiple, with multiple second slots (420) spaced apart on the second mortar block (400) and multiple second inserts (410) spaced apart on the second composite plate (600).

9. The precast composite slab joint structure according to claim 8, characterized in that: The cross-sectional dimensions of the first insert (210) increase from the point closer to the first slot (220) to the point farther away from the first slot (220); the cross-sectional dimensions of the second insert (410) increase from the point closer to the second slot (420) to the point farther away from the second slot (420).

10. A prefabricated composite slab joint structure according to any one of claims 1 to 3, 5, 6 and 9, characterized in that, The support assembly (100) includes a support plate (110) and a support base (120). The first mortar block (200) and the second mortar block (400) are both disposed on the support plate (110), and the support base (120) is disposed on the side of the support plate (110) away from the first mortar block (200) and the second mortar block (400).

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