A precast composite slab base plate and a composite slab splicing structure

Abstract

This utility model discloses a precast base slab and a splicing structure for composite slabs, belonging to the technical field of composite slabs. The precast base slab and splicing structure include: a precast base slab body with multiple through holes on one outer wall, and embedded reinforcing bars fixedly connected to the inner walls of each through hole; and two truss reinforcing bar assemblies, each including: two lower horizontal reinforcing bars, two sets of diagonal web reinforcing bars, and upper horizontal reinforcing bars. This precast base slab and splicing structure, through the precast base slab body, truss reinforcing bar assemblies, and embedded reinforcing bars, forms a precast composite slab body. During transportation or stacking, the upper horizontal reinforcing bars will be located within recessed grooves, preventing misalignment due to insufficient friction during transportation, stacking, or lifting. Simultaneously, the precast base slab bodies will not directly contact each other, avoiding difficulty in access during construction.

Description

Technical Field

[0001] This utility model relates to the field of composite slab technology, and more specifically, to a precast base plate for composite slabs and a splicing structure for composite slabs. Background Technology

[0002] Composite slabs (also known as composite floor slabs or modular floor slabs) are building structural components composed of precast concrete members and cast-in-place concrete layers, widely used in floor slabs, wall panels, and other applications. They combine the advantages of fast construction speed of precast components with the good integrity of cast-in-place layers, making them one of the commonly used prefabricated building technologies in modern construction.

[0003] Precast concrete slabs are concrete components that are prefabricated in a factory and installed on site. They are widely used in building floor slabs, wall panels, and other components. Their structural design must meet the requirements of strength, stiffness, and durability, while also taking into account ease of construction.

[0004] Existing precast composite slabs are often stacked after production. During stacking, they are fixed by friction between the reinforcing bars and the bottom or top surface of the slab. Misalignment is prone to occur during transportation and lifting, requiring the use of steel ropes for fixation, which makes it difficult to retrieve them during on-site construction. Summary of the Invention

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a precast composite slab base plate and a composite slab splicing structure. The precast composite slab body is composed of a precast base plate body, truss steel reinforcement components and embedded reinforcing steel bars. During transportation or stacking, the upper horizontal steel bars will be located in the recessed mating groove, avoiding misalignment due to insufficient friction during transportation, stacking or lifting. At the same time, there will be no direct contact between the precast base plate bodies, avoiding difficulty in handling during construction.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A precast composite slab base plate and a composite slab splicing structure, comprising: a precast base plate body, wherein a plurality of installation through holes are provided on one outer wall of the precast base plate body, and embedded reinforcing bars are fixedly connected between the inner walls of the plurality of installation through holes; and two truss reinforcing bar assemblies, each of the two truss reinforcing bar assemblies comprising: two lower horizontal reinforcing bars, two sets of diagonal web reinforcing bars and upper horizontal reinforcing bars, wherein the two lower horizontal reinforcing bars are fixedly connected between the interior of the precast base plate body, the two sets of diagonal web reinforcing bars are respectively fixedly connected to the top surface of the corresponding lower horizontal reinforcing bars, and each set of diagonal web reinforcing bars is provided with a plurality of them, and the upper horizontal reinforcing bars are fixedly connected between one end of the plurality of upper horizontal reinforcing bars.

[0008] As a preferred embodiment of this utility model, the top surface of the precast base plate is provided with two sets of transverse rough grooves, and each set of transverse rough grooves is provided with multiple grooves.

[0009] As a preferred embodiment of this utility model, the top surface of the precast base plate is provided with two sets of vertical roughening grooves, and each set of vertical roughening grooves is provided with multiple grooves.

[0010] As a preferred embodiment of this utility model, the bottom surface of the precast base plate is provided with three recessed mating grooves, and the inner walls of the three recessed mating grooves are provided with multiple mating recesses.

[0011] As a preferred embodiment of this utility model, two mounting and positioning grooves are provided on the bottom surface of the precast base plate.

[0012] As a preferred embodiment of this utility model, the bottom surface of the precast base plate has two edge grooves.

[0013] Compared with the prior art, this utility model provides a precast base plate of composite slabs and a splicing structure of composite slabs, which has the following beneficial effects:

[0014] The precast base slab and splicing structure of the composite slab consists of a precast base slab body, truss steel reinforcement components and embedded reinforcing steel bars to form the precast composite slab body. During transportation or stacking, the upper horizontal steel bars will be located in the recessed mating groove to avoid misalignment due to insufficient friction during transportation, stacking or lifting. At the same time, there will be no direct contact between the precast base slab bodies to avoid difficulty in handling during construction. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a bottom-view perspective view of the present invention;

[0017] Figure 3 This is a perspective view of the truss steel reinforcement assembly of this utility model.

[0018] Explanation of the labels in the diagram:

[0019] 1. Precast base plate; 2. Horizontal rough groove; 3. Vertical rough groove; 4. Embedded reinforcing steel bars; 5. Lower horizontal reinforcing bars; 6. Diagonal web reinforcing bars; 7. Upper horizontal reinforcing bars; 8. Recessed fitting groove; 9. Fitting recess; 10. Installation positioning groove; 11. Edge groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. Example

[0021] Please see Figure 1-3 A precast composite slab base plate and a composite slab splicing structure, comprising: a precast base plate body 1, wherein a plurality of installation through holes are provided on one outer wall of the precast base plate body 1, and embedded reinforcing bars 4 are fixedly connected between the inner walls of the plurality of installation through holes; and two truss reinforcing bar assemblies, each of the two truss reinforcing bar assemblies comprising: two lower horizontal reinforcing bars 5, two sets of diagonal web reinforcing bars 6 and upper horizontal reinforcing bars 7, wherein the two lower horizontal reinforcing bars 5 are fixedly connected between the interior of the precast base plate body 1, the two sets of diagonal web reinforcing bars 6 are respectively fixedly connected to the top surface of the corresponding lower horizontal reinforcing bars 5, and multiple diagonal web reinforcing bars 6 are provided in each set, and the upper horizontal reinforcing bars 7 are fixedly connected between one end of the multiple upper horizontal reinforcing bars 7.

[0022] In a specific embodiment of this utility model, a load-bearing body is formed by a truss steel reinforcement assembly and an embedded reinforcing steel bar 4, and a precast base plate 1 is made based on a mold. The precast base plate 1, the truss steel reinforcement assembly, and the embedded reinforcing steel bar 4 form a composite precast slab. During transportation or stacking, the precast base plate 1 will be stacked vertically or in a staggered manner. At this time, the upper horizontal steel bar 7 of the truss steel reinforcement assembly will be located in the recessed mating groove 8. When stacked vertically, the upper horizontal steel bar 7 will cooperate with the recessed mating groove 8 located on both sides. When stacked in a staggered manner, it will cooperate with the recessed mating groove 8 located in the middle position. This avoids misalignment due to insufficient friction during transportation, stacking, or lifting. At the same time, there will be no direct contact between the precast base plate 1s, reducing friction and avoiding difficulty in accessing them during construction. When installing and splicing, the edge groove 11 will facilitate the installation and positioning of the precast base plate 1.

[0023] Specifically, the top surface of the precast base plate 1 is provided with two sets of transverse rough grooves 2, and each set of transverse rough grooves 2 is provided with multiple grooves.

[0024] In this embodiment, the friction of the precast base plate 1 is increased by the transverse rough groove 2, which improves the fixing effect of the precast base plate 1 and the cement when the top surface is poured with cement.

[0025] Specifically, the top surface of the precast base plate 1 is provided with two sets of vertical roughening grooves 3, and each set of vertical roughening grooves 3 is provided with multiple grooves.

[0026] In this embodiment, the vertical rough groove 3 further improves the fixing effect, and the groove position is misaligned with the truss steel reinforcement assembly, which facilitates operation.

[0027] Specifically, the bottom surface of the precast base plate 1 is provided with three recessed mating grooves 8, and the inner walls of the three recessed mating grooves 8 are provided with multiple mating recesses 9.

[0028] In this embodiment, the recessed groove 8 and the upper horizontal steel bar 7 are engaged, and the recessed groove 9 assists in the entry of the upper horizontal steel bar 7. At the same time, wire operation can be performed after installation.

[0029] Specifically, two mounting and positioning grooves 10 are provided on the bottom surface of the precast base plate 1.

[0030] In this embodiment, the support block is set by installing the positioning groove 10, thereby improving the stacking and transportation effect, and improving the positioning effect during splicing and installation.

[0031] Specifically, the bottom surface of the precast base plate 1 has two edge grooves 11.

[0032] In this embodiment, the edge groove 11 assists in the installation and positioning of the precast base plate 1.

[0033] Working principle: The load-bearing body is formed by the truss steel reinforcement assembly and the embedded reinforcing steel 4, and the precast base plate 1 is made based on the mold. The precast base plate 1, the truss steel reinforcement assembly and the embedded reinforcing steel 4 form a composite precast slab. During transportation or stacking, the precast base plate 1 will be stacked vertically or staggered. At this time, the upper horizontal steel bar 7 of the truss steel reinforcement assembly will be located in the recessed mating groove 8. When stacked vertically, the upper horizontal steel bar 7 will cooperate with the recessed mating groove 8 on both sides. When stacked staggered, it will cooperate with the recessed mating groove 8 in the middle position. This avoids the misalignment caused by insufficient friction during transportation, stacking or lifting. At the same time, there will be no direct contact between the precast base plates 1, reducing friction and avoiding difficulty in use during construction. When installing and splicing, the edge groove 11 will facilitate the installation and positioning of the precast base plate 1.

[0034] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A laminated slab prefabricated base plate and laminated slab splicing structure, characterized by, include: A precast base slab (1) has multiple through holes on one side of its outer wall, and embedded reinforcing bars (4) are fixedly connected between the inner walls of the multiple through holes; and Two truss reinforcement assemblies, each of the two truss reinforcement assemblies includes: two lower horizontal reinforcement bars (5), two sets of diagonal web reinforcement bars (6) and upper horizontal reinforcement bars (7). The two lower horizontal reinforcement bars (5) are fixedly connected to the interior of the precast base plate (1). The two sets of diagonal web reinforcement bars (6) are respectively fixedly connected to the top surface of the corresponding lower horizontal reinforcement bars (5). Each set of diagonal web reinforcement bars (6) is provided with multiple bars. The upper horizontal reinforcement bars (7) are fixedly connected to one end of the multiple upper horizontal reinforcement bars (7).

2. The prefabricated bottom plate and laminated slab splicing structure according to claim 1, characterized in that: The top surface of the precast base plate (1) is provided with two sets of transverse rough grooves (2), and each set of transverse rough grooves (2) is provided with multiple grooves.

3. The precast base plate and splicing structure of the composite slab according to claim 2, characterized in that: The top surface of the precast base plate (1) is provided with two sets of vertical roughening grooves (3), and each set of vertical roughening grooves (3) is provided with multiple grooves.

4. The prefabricated bottom plate and laminated slab splicing structure according to claim 3, characterized in that: The bottom surface of the precast base plate (1) is provided with three recessed mating grooves (8), and the inner walls of the three recessed mating grooves (8) are provided with multiple mating recesses (9).

5. The prefabricated floor slab and the spliced floor slab structure according to claim 4, characterized in that: Two mounting and positioning grooves (10) are provided on the bottom surface of the precast base plate (1).

6. The prefabricated floor slab and the spliced floor slab structure according to claim 5, characterized in that: The bottom surface of the precast base plate (1) has two edge grooves (11).

Images