Laminated slab structure with self-positioning function during splicing

Abstract

The utility model belongs to the technical field of building construction, and particularly relates to a laminated slab structure with a self-positioning function during splicing. According to the laminated slab structure with the self-positioning function in the splicing process, the limiting truss unit and the positioning frame unit are arranged on the two prefabricated slabs respectively, so that after the prefabricated slab provided with the limiting truss unit is placed, the other prefabricated slab provided with the positioning frame unit can be connected and clamped with the prefabricated slab in a sleeved mode, and the two prefabricated slabs can be spliced. The two prefabricated slabs can be mutually fixed in the horizontal direction, the structures between the adjacent prefabricated slabs have integrity, the limiting truss units and the positioning frame units are of structures arranged in advance, clamping and positioning between the positioning frame units and the limiting truss units can be completed when the prefabricated slabs are spliced, installation is rapid, positioning is accurate, and assembling is convenient. The operation is simple, and the precision requirement of on-site construction and the overall quality of a building are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building construction, especially relates to a laminated slab structure with self-positioning function during splicing. BACKGROUND

[0002] The laminated slab is also a laminated floor slab, which is a prefabricated floor slab combined with a cast-in-place reinforced concrete layer, and replaces the traditional iron, steel, aluminum and wood formwork. The laminated floor slab has good overall performance, and the upper and lower surfaces of the slab are flat, which facilitates the decoration of the finish layer and is suitable for high-rise buildings and large-bay buildings with high overall stiffness requirements. The laminated floor slab is often used in existing prefabricated concrete structures.

[0003] In prefabricated building construction, the installation and construction of laminated slabs are a key work, which involves factory production of prefabricated slabs, transportation, hoisting, on-site installation of prefabricated slabs, and pouring and forming of the structure of the cast-in-place reinforced concrete layer. Since the construction of the joint part of the laminated slab is cast-in-place, the connection of the joint part directly affects the overall quality of the building structure. If the construction is not proper, misalignment or insecure connection between the laminated slabs may occur, which will affect the bearing capacity and seismic performance of the entire building structure.

[0004] The existing joint part of the laminated slab is usually transported to the site, positioned, and then reinforced and connected through the form of additional steel bars or splicing components on site to meet the construction requirements.

[0005] For example, the Chinese invention patent application with the patent publication number CN117587976A and the publication date of February 23, 2024 discloses a laminated slab joint structure and construction method. The structure includes a prefabricated bottom plate, a reserved groove, a truss structure, a joint, and additional steel bars. The upper surface of the prefabricated bottom plate is provided with a cast-in-place concrete layer, and the end of the prefabricated bottom plate is provided with a reserved groove. Two adjacent prefabricated bottom plates are spliced together, and the joint part of the two adjacent prefabricated bottom plates forms a joint. The additional steel bars and the truss structure are arranged inside the cast-in-place concrete layer. The additional steel bars and the truss structure are placed on the reserved groove from bottom to top. The left and right ends of the additional steel bars are respectively fixedly connected with the left and right sides of the bottom of the truss structure. The truss structure is located above the joint.

[0006] The structure principle of the joint structure of the laminated slab in the invention is as follows: in construction, the prefabricated bottom plate is transported to the construction site and hoisted into place, the reserved grooves of two adjacent prefabricated bottom plates are aligned, a joint is formed at the joint of the two prefabricated bottom plates, then the additional steel bars are placed horizontally on the reserved grooves, the truss structure is placed on the additional steel bars, the joint is located at the lowermost point of the truss structure, the bottom of the truss structure is bound with the additional steel bars, the length of the additional steel bars is less than twice the width of the reserved groove at the end of the prefabricated bottom plate, the distance of the additional steel bars at both ends of the joint is ensured to be consistent, the truss structure is placed at the joint, the shear resistance at the joint between the plates is ensured, the stiffness at the joint is improved, the bending moment is more easily transmitted, and the influence of the joint on the stress of the laminated slab is weakened.

[0007] However, the joint structure of the laminated slab has at least the following problems in actual use, in other words, the technical problems to be solved by the utility model.

[0008] The two adjacent prefabricated bottom plates do not have self-positioning function when spliced, and can only be roughly aligned first and then passively positioned and aligned through the additional structure combination of the triangular truss and the additional steel bars, which is not efficient and convenient enough.

[0009] Therefore, as described above, there is an urgent need for a new laminated slab structure that can quickly position prefabricated bottom plates when spliced. Utility model content

[0010] The utility model provides a laminated slab structure with self-positioning function when spliced, which can be positioned by setting a limiting truss unit and a positioning frame unit on two prefabricated plates, so that: after the prefabricated plate provided with the limiting truss unit is placed, the other prefabricated plate provided with the positioning frame unit can be sleeved and clamped with it, so that the two prefabricated plates can be fixed to each other in the horizontal direction, the structure between the adjacent prefabricated plates has integrity, the limiting truss unit and the positioning frame unit are structures set in advance, the clamping positioning between the positioning frame unit and the limiting truss unit can be completed when the prefabricated plates are spliced, the installation is rapid and accurate in positioning, the operation is simple, and the accuracy requirements of on-site construction and the overall quality of the building are ensured.

[0011] The technical scheme adopted by the utility model to solve the above problems is: a laminated slab structure with self-positioning function when spliced, comprising two prefabricated plates and upper steel bars, a limiting truss unit arranged on one of the prefabricated plates, and a positioning frame unit arranged on the other prefabricated plate, pressed on the limiting truss unit and used for sleeving the limiting truss unit.

[0012] Further preferably, the limiting truss unit comprises a supporting rod arranged on the prefabricated slab and used for supporting the positioning frame unit, and an inclined rod arranged on the supporting rod and used for inserting the positioning frame unit.

[0013] Further preferably, the positioning frame unit comprises a connecting rod arranged on the prefabricated slab and pressed on the supporting rod, and a positioning rod arranged on the connecting rod and used for limiting and clamping the inclined rod.

[0014] Further preferably, the limiting truss unit further comprises a reinforcing rod arranged on the supporting rod and used for connecting the inclined rod.

[0015] Further preferably, the positioning frame unit further comprises an auxiliary limiting rod arranged on the connecting rod and used for blocking and clamping the reinforcing rod.

[0016] Further preferably, the limiting truss unit further comprises an integral rod arranged on all the inclined rods and used for connecting the upper layer of steel bars.

[0017] Further preferably, the limiting truss unit further comprises a bottom rod arranged on the inclined rod, connected with the reinforcing rod, and used for supporting the integral rod.

[0018] Further preferably, the positioning frame unit further comprises a thickness connecting rod arranged on the connecting rod or the positioning rod and used for connecting the upper layer of steel bars.

[0019] Further preferably, the utility model further comprises a bottom plate arranged on the supporting template and used for connecting two adjacent prefabricated slabs.

[0020] Further preferably, the utility model further comprises a side plate arranged between two adjacent prefabricated slabs. DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the connection schematic drawing of the utility model.

[0022] Figure 2 It is the position structure drawing of the limiting truss unit in the utility model.

[0023] Figure 3 It is the three-dimensional structure drawing of the limiting truss unit in the utility model.

[0024] Figure 4 It is the position structure drawing of the positioning frame unit in the utility model.

[0025] Figure 5 It is the partial enlarged view of A.

[0026] Figure 6 It is a partial enlarged view of the utility model.

[0027] Figure 7 It is a sectional view under the front view angle in the utility model.

[0028] Figure 8 It is a sectional view of the utility model.

[0029] Figure 9 It is an explosion schematic view of the utility model.

[0030] In the drawing, the meaning of each mark is as follows:

[0031] Prefabricated slab 11, upper layer steel bar 12, embedded steel bar 13, cast-in-situ concrete 14, support formwork 15;

[0032] Limiting truss unit 1, positioning frame unit 2, bottom plate 3, side plate 4;

[0033] Supporting rod 101, inclined rod 102, reinforcing rod 103, integral rod 104, bottom rod 105, connecting rod 201, positioning rod 202, auxiliary limiting rod 203, thickness direction connecting rod 204. DETAILED DESCRIPTION

[0034] The following description is only a preferred embodiment of the utility model, and does not limit the scope of the utility model.

[0035] As shown in the accompanying drawings, Figures 1-9 A laminated slab structure with self-positioning function when splicing, comprising two prefabricated slabs 11 and upper layer steel bars 12, further comprising limiting truss units 1 arranged on one of the prefabricated slabs 11, and positioning frame units 2 arranged on the other prefabricated slab 11 and pressing on the limiting truss units 1, and used for sleeving the limiting truss units 1.

[0036] In this embodiment, the prefabricated slab 11 is provided with the embedded steel bar 13 in advance, and one side of the prefabricated slab 11 provided with the embedded steel bar 13 is used for connecting with the upper layer steel bar 12, the side ends of the two adjacent prefabricated slabs 11 are respectively provided with the limiting truss units 1 and the positioning frame units 2, and the limiting truss units 1 and the positioning frame units 2 are sleeved with each other, thereby limiting the two adjacent prefabricated slabs 11 in the horizontal direction, avoiding cracks and grouting leakage phenomenon at the splicing part of the two prefabricated slabs 11 when pouring the cast-in-situ concrete 14, and increasing the structural integrity of the two prefabricated slabs 11 and the cast-in-situ concrete 14, and ensuring the forming quality and visual quality of the cast-in-place slab.

[0037] In addition, the limiting truss unit 1 is arranged at the side end of one of the prefabricated plates 11, and the protruding limiting truss unit 1 can achieve the blocking limiting effect in the horizontal direction, preventing the horizontal deviation of the positioning frame unit 2 sleeved therewith. The positioning frame unit 2 is arranged at the side end of the other prefabricated plate 11 and is sleeved with the limiting truss unit 1, so that when splicing, the positioning frame unit 2 is positioned behind the corresponding limiting truss unit 1, so that the two prefabricated plates 11 are positioned and installed, the operation is simple, the splicing is rapid, the accuracy requirement can be guaranteed, and the splicing efficiency is high.

[0038] The limiting truss unit 1 comprises a supporting rod 101 arranged on the prefabricated plate 11 and used for supporting the positioning frame unit 2, and an inclined rod 102 arranged on the supporting rod 101 and used for being inserted into the positioning frame unit 2.

[0039] In the embodiment, the supporting rod 101 is arranged at the side end of the prefabricated plate 11, and the inclined rod 102 is arranged close to the side of the prefabricated plate 11, the inclined rod 102 and the side surface of the prefabricated plate 11 have the limiting effect on the positioning frame unit 2, so that the positioning frame unit 2 can be quickly positioned with the limiting truss unit 1, and the integrity of the two prefabricated plates 11 is stronger, thereby facilitating the pouring and forming of the cast-in-place concrete 14.

[0040] The positioning frame unit 2 comprises a connecting rod 201 arranged on the prefabricated plate 11 and pressed on the supporting rod 101, and a positioning rod 202 arranged on the connecting rod 201 and used for limiting and clamping the inclined rod 102.

[0041] In the embodiment, the connecting rod 201 is arranged on the other prefabricated plate 11, and the positioning rod 202 is connected with at least two connecting rods 201, so that the positioning rod 202, the connecting rod 201 and the side surface of the prefabricated plate 11 enclose a rectangular frame capable of sleeving the limiting truss unit 1. The positioning frame unit 2 is arranged correspondingly with the limiting truss unit 1, and can be arranged at intervals on the prefabricated plate 11 or arranged in parallel on the prefabricated plate 11. In order to ensure the connection stability of the two prefabricated plates 11, the positioning frame unit 2 and the limiting truss unit 1 are arranged in at least two groups and located at the two ends of the two prefabricated plates 11.

[0042] The limiting truss unit 1 further comprises a reinforcing rod 103 arranged on the supporting rod 101 and used for connecting the inclined rod 102.

[0043] In this embodiment, the two reinforcing rods 103 of the two tilting rods 102 are structurally quadrangular pyramidal. The reinforcing rods 103 are used to reinforce and support the support rods 101 to increase structural strength, and can also further limit and position the positioning frame unit 2.

[0044] The positioning frame unit 2 further includes an auxiliary limiting rod 203 provided on the connecting rod 201 and used for blocking and engaging the reinforcing rod 103 .

[0045] In this embodiment, the auxiliary limiting rod 203 is used to block the reinforcing rod 103 and strengthen the structural strength between adjacent connecting rods 201 .

[0046] The limiting truss unit 1 further includes an integral rod 104 provided on all the inclined rods 102 and used for connecting the upper steel bars 12 .

[0047] In this embodiment, the function of the integral rod 104 is to connect and fix the inclined rod 102 and the upper steel bar 12, thereby increasing the structural integrity and achieving a better casting effect of the cast-in-place concrete 14.

[0048] The position-limiting truss unit 1 further includes a bottom rod 105 which is arranged on the inclined rod 102 , connected to the reinforcement rod 103 , and used to support the integral rod 104 .

[0049] In this embodiment, the bottom rod 105 can support the whole rod 104, and at the same time reduce the difficulty of operation during on-site bundling. Even if some parts are missed, it will not affect the connection strength between the whole rod 104 and the upper steel bars 12, and the fault tolerance rate is higher.

[0050] The positioning frame unit 2 further includes a thickness connecting rod 204 provided on the connecting rod 201 or the positioning rod 202 and used for connecting the upper layer steel bars 12 .

[0051] In this embodiment, the thickness connecting rod 204 serves to further increase the connection strength and structural stability between the positioning frame unit 2 and the upper steel bar 12 .

[0052] It also includes a bottom plate 3 that is arranged on the supporting formwork 15 and is used to connect two adjacent prefabricated panels 11.

[0053] In this embodiment, the base plate 3 can reduce the difficulty of using and removing the supporting formwork 15 to a certain extent, and at the same time can improve the structural integrity of the joints of the composite plates, reduce the difficulty of forming and polishing the cast-in-place concrete 14, and reduce labor costs.

[0054] The side plate 4 is arranged between two adjacent prefabricated plates 11.

[0055] In the embodiment, the side plate 4 can shape the cast-in-situ concrete 14 between the prefabricated plates 11, reduce the possibility of slurry leakage, and ensure the aesthetic appearance of the side end.

[0056] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various modifications can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model. These are all non-creative modifications, and are protected by the patent law as long as within the scope of the claims of the utility model.

Claims

1. A composite plate structure with a self-positioning function during splicing, comprising two prefabricated plates (11) and upper steel bars (12), characterized in that: It also includes a limiting truss unit (1) arranged on one of the prefabricated panels (11), and a positioning frame unit (2) arranged on the other prefabricated panel (11), pressed on the limiting truss unit (1), and used for sleeve-connecting the limiting truss unit (1).

2. The composite plate structure with self-positioning function during splicing according to claim 1, characterized in that: The position-limiting truss unit (1) comprises a support rod (101) provided on the prefabricated plate (11) and used to support the positioning frame unit (2), and an inclined rod (102) provided on the support rod (101) and used to be inserted into the positioning frame unit (2).

3. The composite plate structure with self-positioning function during splicing according to claim 2, characterized in that: The positioning frame unit (2) comprises a connecting rod (201) arranged on the prefabricated plate (11) and pressed on the supporting rod (101), and a positioning rod (202) arranged on the connecting rod (201) and used for limiting and engaging the tilting rod (102).

4. The composite plate structure with self-positioning function during splicing according to claim 3, characterized in that: The position-limiting truss unit (1) further comprises a reinforcing rod (103) arranged on the supporting rod (101) and used for connecting the tilting rod (102).

5. The composite plate structure with self-positioning function during splicing according to claim 4, characterized in that: The positioning frame unit (2) further comprises an auxiliary limiting rod (203) provided on the connecting rod (201) and used for blocking and engaging the reinforcing rod (103).

6. The composite plate structure with self-positioning function during splicing according to claim 4, characterized in that: The position-limiting truss unit (1) further comprises an integral rod (104) provided on all the inclined rods (102) and used for connecting the upper layer of steel bars (12).

7. The composite plate structure with self-positioning function during splicing according to claim 6, characterized in that: The position-limiting truss unit (1) further comprises a bottom rod (105) which is arranged on the tilting rod (102), connected to the reinforcing rod (103), and used to support the integral rod (104).

8. The composite plate structure with self-positioning function during splicing according to claim 6, characterized in that: The positioning frame unit (2) further comprises a thickness-direction connecting rod (204) provided on the connecting rod (201) or the positioning rod (202) and used for connecting the upper layer steel bars (12).

9. The composite plate structure with self-positioning function during splicing according to claim 1, characterized in that: It also includes a bottom plate (3) arranged on the supporting formwork (15) and used to connect two adjacent prefabricated panels (11).

10. The composite plate structure with self-positioning function during splicing according to claim 1, characterized in that: It also includes a side panel (4) arranged between two adjacent prefabricated panels (11).

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