Floor slab structure
By adopting an integrated cast-formed floor planar structure in the building, the traditional beam structure and the beam and column nodes at the corners of the core cylinder are omitted, and the problem of traditional beam slab structures increasing the floor height and construction difficulty due to the large beam cross-sectional height of the beam. The effect of improving the stiffness and bearing capacity of floor slabs, increasing the net height of floors and reducing construction difficulty is achieved.
Patent Information
- Application Number
- CN202421190143.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The traditional beam and slab structural system increases the floor height due to the large beam cross-sectional height, and it is difficult to construct the beam and column nodes at the corners of the core cylinder.
A floor plan structure is adopted, including a core cylinder, an external frame and a floor board. The floor board is omitted by the first thickness plate, the second thickness plate, the third thickness plate and the fourth thickness plate formed by integral casting, and the traditional beam structure is omitted. The connection between the core cylinder and the outer frame is strengthened through the third thickness plate.
The stiffness and bearing capacity of the floor slabs have been improved, the net height of the floor has been increased, the construction difficulty has been reduced, and significant comprehensive economic benefits have been achieved.
Smart Images
Figure CN222456377U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building structure systems, in particular to a floor slab structure. Background Art
[0002] Office buildings have large column grids due to their large space requirements. In order to pursue ideal floor clear height, the building height is often set high. For super-class A office buildings, the requirements for clear height are even higher. If the traditional beam-slab structure system is used, the main dimensions of the internal beam section are 300x700 to 300x900mm. The large beam section height is the main factor causing the high floor height, and the increase in floor height directly leads to the increase in the total height of the building. In addition, the traditional beam-slab structure is difficult to construct at the beam-column node at the corner of the core tube. Utility Model Content
[0003] The utility model aims to provide a floor slab structure to solve the problems in the prior art of increasing the floor height and the difficulty in constructing the beam-column nodes at the corners of the core tube due to the large height of the beam section.
[0004] In order to achieve the above-mentioned purpose, the utility model provides a floor slab structure, including a core tube, an external frame and a floor slab, the floor slab including a first thickness plate, a second thickness plate, a third thickness plate and a fourth thickness plate that are cast in one piece, the outer side of the core tube is provided with a ring-shaped distributed first thickness plate, the inner side of the external frame is provided with a ring-shaped distributed second thickness plate, the third thickness plate is connected between the external frame and the core tube, the fourth thickness plate is arranged in the area enclosed by the first thickness plate, the second thickness plate and the third thickness plate, the thickness of the first thickness plate is equal to the thickness of the second thickness plate, the thickness of the first thickness plate is less than the thickness of the third thickness plate, and the thickness of the fourth thickness plate is less than the thickness of the first thickness plate.
[0005] Preferably, the thickness of the third thickness plate is in the range of 400-500 mm.
[0006] Preferably, the thickness of the first thickness plate and the second thickness plate is in the range of 300-400 mm.
[0007] Preferably, the thickness of the fourth thickness plate is in the range of 200-300 mm.
[0008] Preferably, the core tube includes a shear wall and a core tube frame beam, the shear wall and the core tube frame beam are connected to form a closed structure in a horizontal plane, and the third thickness plate is connected to the shear wall.
[0009] Preferably, the third thickness plate is connected to the corner of the shear wall.
[0010] Preferably, the floor slab is provided with reinforcement, and the reinforcement includes full-length steel bars and additional steel bars.
[0011] Preferably, the external frame includes an external frame beam and an external frame column, and the third thickness plate is connected to the external frame column.
[0012] Preferably, the distance between the core tube and the external frame ranges from 9000 to 13000 mm, and the distance between two adjacent external frame columns ranges from 9000 to 12000 mm.
[0013] Preferably, the width of the first thickness plate, the second thickness plate and the third thickness plate is in the range of 2000-2500 mm.
[0014] Compared with the prior art, the floor slab structure of the utility model embodiment has the following beneficial effects: a first thickness plate and a second thickness plate with a thickness greater than the fourth thickness plate are respectively arranged on the outer side of the core tube and the inner side of the external frame, and a third thickness plate with a thickness greater than the first thickness plate is connected between the external frame and the core tube; the rigidity of the floor plate is increased by locally thickening the plates in the core tube, the external frame and the floor plate, and the bearing capacity of the floor plate is improved; the connection between the core tube and the external frame is strengthened by the third thickness plate, the division of irregular plates is optimized, the force transmission path is clarified, and the force transmission path of the traditional beam-slab structure is changed; because the floor plate is integrally cast and formed by the first thickness plate, the second thickness plate, the third thickness plate and the fourth thickness plate, on the premise of ensuring that the overall bearing capacity meets the requirements, the beam structure and the beam-column node at the corner of the core tube are omitted, the net height of the floor is increased, the construction difficulty is reduced, and significant comprehensive economic benefits are achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the floor slab structure of the utility model;
[0016] Figure 2 yes Figure 1 Sectional view of the floor slab structure along line MM;
[0017] Figure 3 yes Figure 1 A cross-sectional view of the floor slab structure along line NN;
[0018] Figure 4 It is a schematic diagram of reinforcement arrangement of the core tube and the floor slab of the floor slab structure of the utility model.
[0019] In the figure, 1. core tube, 11. shear wall, 12. core tube frame beam, 2. external frame, 21. external frame beam, 22. external frame column, 3. floor slab, 31. first thickness slab, 32. second thickness slab, 33. third thickness slab, 34. fourth thickness slab, 4. reinforcement. DETAILED DESCRIPTION
[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0021] A preferred embodiment of the floor slab structure of the utility model is as follows Figures 1 to 4 As shown, the floor slab structure includes a core tube 1, an external frame 2 and a floor slab 3. The core tube 1 is arranged at the center of the floor slab structure, the external frame 2 is arranged at the periphery of the floor slab structure, and the floor slab 3 is connected between the core tube 1 and the external frame 2. In this embodiment, the core tube 1 is a rectangular structure, and the external frame 2 is a rectangular structure with corner slopes.
[0022] The floor slab 3 includes a first thickness slab 31, a second thickness slab 32, a third thickness slab 33 and a fourth thickness slab 34. The first thickness slab 31, the second thickness slab 32, the third thickness slab 33 and the fourth thickness slab 34 are an integrally cast structure, so that traditional structural beams are omitted between the first thickness slab 31, the second thickness slab 32, the third thickness slab 33 and the fourth thickness slab 34, thereby changing the force transmission path, increasing the net height of the floor, and optimizing the node practices.
[0023] The outer side of the core tube 1 is provided with a first thickness plate 31, which is in a closed annular structure, that is, the first thickness plate 31 is distributed around the outer wall of the core tube 1. The inner layer of the outer frame 2 is provided with a second thickness plate 32, which is in a closed annular structure, that is, the second thickness plate 32 is distributed around the inner wall of the outer frame 2. The first thickness plate 31 and the second thickness plate 32 have the same thickness and are greater than the minimum thickness of the floor plate 3, and are used to strengthen the structure of the core tube 1 and the outer frame 2, increase the rigidity of the floor plate 3 at this position, and meet the shear bearing capacity requirements of the floor plate 3.
[0024] The third thickness plate 33 is connected between the core tube 1 and the external frame 2. The third thickness plate 33 is arranged perpendicular to the first thickness plate 31 and the second thickness plate 32 to achieve the connection between the core tube 1 and the external frame 2, withstand the internal force transmission, and optimize the force transmission path of the floor plate 3. The thickness of the third thickness plate 33 is greater than that of the first thickness plate 31 and the second thickness plate 32. Since the thickness of the third thickness plate 33 is large and the thickness distribution is uniform, the area with the third thickness plate 33 on the floor plate 3 is strengthened to improve the rigidity at this position, which can optimize the division of irregular plates, clarify the force transmission path, and achieve the effect of eliminating the beam structure of the traditional beam-column structure system. In this embodiment, there are multiple third thickness plates 33, and each third thickness plate 33 is distributed at intervals to increase the overall rigidity of the floor plate 3.
[0025] A fourth thickness plate 34 is arranged in the area enclosed by the first thickness plate 31, the second thickness plate 32 and the third thickness plate 33. The third thickness plate 33 divides the floor plate 3 into a plurality of regular areas. The fourth thickness plate 34 is arranged in each regular area. The thickness of the fourth thickness plate 34 is less than that of the first thickness plate 31, that is, the thickness of the fourth thickness plate 34 is the minimum thickness of the floor plate 3. The thickness of the fourth thickness plate 34 is slightly thicker than the floor plate thickness of the existing beam-column structure system, thereby ensuring the building's functional use.
[0026] The floor slab structure is provided with a first thickness plate 31 and a second thickness plate 32 having a thickness greater than the fourth thickness plate 34 on the outer side of the core tube 1 and the inner side of the external frame 2, respectively. At the same time, a third thickness plate 33 having a thickness greater than the first thickness plate 31 is connected between the core tube 1 and the external frame 2. The rigidity of the floor slab 3 is increased by locally thickening the plates on the core tube 1, the external frame 2 and the floor slab 3, thereby improving the bearing capacity of the floor slab. The connection between the core tube 1 and the external frame 2 is strengthened by the third thickness plate 33, the division of irregular plates is optimized, the force transmission path is clarified, and the force transmission path of the traditional beam-slab structure is changed. Since the floor slab 3 is integrally cast by the first thickness plate 31, the second thickness plate 32, the third thickness plate 33 and the fourth thickness plate 34, while ensuring that the overall bearing capacity meets the requirements, the beam structure and the beam-column node at the corner of the core tube 1 are omitted, the net height of the floor is increased, the crossing installation of equipment pipelines is facilitated, the functional requirements of the building are guaranteed, the construction difficulty is reduced, and the use of the flat plate structure system in high-rise and large-span office buildings is realized.
[0027] Preferably, the thickness of the third thickness plate 33 is in the range of 400-500 mm.
[0028] When the thickness of the third thickness plate 33 is within this range, the rigidity of the area on the floor plate 3 where the third thickness plate 33 is arranged can be increased to 1.5 times or more of the rigidity of the fourth thickness plate 34, dividing the plate surface into regular plates, and strengthening the connection between the external frame 2 and the core tube 1. Compared with the existing beam-column structural system with a beam section thickness of 700-900 mm, the net height of the floor can be increased by 300-400 mm.
[0029] Preferably, the thickness of the first thickness plate 31 and the second thickness plate 32 is in the range of 300-400 mm.
[0030] The first thickness plate 31 and the second thickness plate 32 with a thickness in the range of 300-400 mm can generally meet the shear bearing capacity requirements of the wall column to the plate, and also strengthen the integrity of the external frame 2 columns and the core tube 1.
[0031] Preferably, the thickness of the fourth thickness plate 34 is in the range of 200-300 mm.
[0032] The thickness of the fourth thickness plate 34 is slightly greater than the plate thickness of the existing beam-column structure, which increases the overall rigidity of the floor plate 3 to meet the load-bearing requirements of the floor plate 3 and ensure the functional requirements of the building.
[0033] Preferably, the core tube 1 includes a shear wall 11 and a core tube frame beam 12 , the shear wall 11 and the core tube frame beam 12 are connected to form a closed structure in a horizontal plane, and the third thickness plate 33 is connected to the shear wall 11 .
[0034] The third thickness plate 33 is connected to the shear wall 11 of the core tube 1. The steel bars between the third thickness plate 33 and the shear wall 11 can connect the shear wall 11 and the outer frame column 22 to form a whole, thereby strengthening the connection between the core tube 1 and the outer frame 2 and increasing the overall stiffness of the floor.
[0035] Preferably, the third thickness plate 33 is connected to the corner of the shear wall 11 .
[0036] The corner of the shear wall 11 is an irregular position of the floor slab 3, and the third thickness plate 33 is connected to the corner of the shear wall 11 to achieve the division of regular plates, clarify the force transmission path, and increase the connection strength.
[0037] Preferably, the floor slab 3 is provided with reinforcement 4, and the reinforcement 4 includes full-length steel bars and additional steel bars.
[0038] The reinforcement 4 provided on the floor slab 3 includes full-length steel bars and additional steel bars, which can meet the floor slab bearing capacity requirements. The reinforcement 4 at the corner of the floor slab 3 and the core tube 1 is full-length steel bars, and the spacing of the full-length steel bars is greater than the spacing of the beam steel bars, which avoids the situation where the traditional beam-slab structure needs to overlap two structural beams at the corner of the core tube 1, resulting in dense node steel bars, simplifies the anchoring method of the beam-column node beam steel bars at the corner of the core tube 1, facilitates on-site construction, and ensures the quality of the project.
[0039] Preferably, the outer frame 2 includes an outer frame beam 21 and an outer frame column 22 , and the third thickness plate 33 is connected to the outer frame column 22 .
[0040] The third thickness plate 33 connects the core tube 1 with the outer frame column 22 through steel bars. The full-length steel bars of the third thickness plate 33 can connect the shear wall 11 and the outer frame column 22 to form a whole, thereby enhancing the integrity of the floor.
[0041] There are multiple outer frame columns 22 and they are spaced apart. In this embodiment, Figure 1 As shown, the horizontal projection of the external frame 2 is a corner rectangular structure, and the external frames 22 are arranged at both ends of the corners; except for the external frame columns 22 at the corner position, the distance between two adjacent external frame columns 22 in the length direction of the external frame 2 is D, and the distance between two adjacent external frame columns 22 in the width direction of the external frame 2 is B, and the ranges of B and D are both 9000-12000mm; except for the external frame columns 22 at the corner position, the minimum distances between the external frame columns 22 in the length direction and the external frame columns 22 in the width direction of the external frame 2 are A and C, and the range of A and C is 10000-14500mm.
[0042] Preferably, the distance between the core tube 1 and the outer frame 2 is in the range of 9000-13000 mm, and the distance between two adjacent outer frame columns 22 is in the range of 9000-12000 mm.
[0043] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, L1 is the distance between the core tube 1 and the external frame 2 in the width direction, and L2 is the distance between the core tube 1 and the external frame 2 in the length direction, wherein the length direction and width direction refer to the length and width directions of the rectangular projection of the core tube 1 and the external frame 2 on the horizontal plane, and the range of L1 and L2 are both 9000-13000mm. Restrictions are imposed on each distance to ensure that the plate size is within a reasonable range, thereby ensuring that the floor slab structure plan can be realized and the architectural effect can be achieved.
[0044] Preferably, the width of the first thickness plate 31, the second thickness plate 32, and the third thickness plate 33 is in the range of 2000-2500 mm.
[0045] like Figure 1 As shown, b1 is the width of the first thickness plate 31, b2 is the width of the second thickness plate 32, and b3 is the width of the third thickness plate 33. The ranges of b1, b2 and b3 are all 2000-2500mm to meet the stiffness and bearing capacity requirements of the floor plates 3 of various spans mentioned above.
[0046] In summary, the embodiment of the utility model provides a floor slab structure, in which a first thickness plate and a second thickness plate with a thickness greater than the fourth thickness plate are respectively arranged on the outer side of the core tube and the inner side of the external frame, and a third thickness plate with a thickness greater than the first thickness plate is connected between the external frame and the core tube. The rigidity of the floor plate is increased by locally thickening the plates in the core tube, the external frame and the floor plate, and the bearing capacity of the floor plate is improved. The connection between the core tube and the external frame is strengthened by the third thickness plate, the division of irregular plates is optimized, the force transmission path is clarified, and the force transmission path of the traditional beam-slab structure is changed. Since the floor plate is integrally cast by the first thickness plate, the second thickness plate, the third thickness plate and the fourth thickness plate, on the premise of ensuring that the overall bearing capacity meets the requirements, the beam structure and the beam-column node at the corner of the core tube are omitted, the net height of the floor is increased, the construction difficulty is reduced, and significant comprehensive economic benefits are achieved.
[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.
Claims
1. A floor slab structure, characterized in that: The invention comprises a core tube (1), an external frame (2) and a floor plate (3), wherein the floor plate (3) comprises a first thickness plate (31), a second thickness plate (32), a third thickness plate (33) and a fourth thickness plate (34) which are integrally cast and formed; the outer side of the core tube (1) is provided with the first thickness plate (31) which is distributed in an annular manner; the inner side of the external frame (2) is provided with the second thickness plate (32) which is distributed in an annular manner; the third thickness plate (33) is connected between the external frame (2) and the core tube (1); the fourth thickness plate (34) is arranged in an area enclosed by the first thickness plate (31), the second thickness plate (32) and the third thickness plate (33); the thickness of the first thickness plate (31) is equal to the thickness of the second thickness plate (32); the thickness of the first thickness plate (31) is less than the thickness of the third thickness plate (33); and the thickness of the fourth thickness plate (34) is less than the thickness of the first thickness plate (31).
2. The floor slab structure according to claim 1, characterized in that: The thickness of the third thickness plate (33) is in the range of 400-500 mm.
3. The floor slab structure according to claim 1, characterized in that: The thickness of the first thickness plate (31) and the second thickness plate (32) ranges from 300 to 400 mm.
4. The floor slab structure according to claim 1, characterized in that: The thickness of the fourth thickness plate (34) is in the range of 200-300 mm.
5. The floor slab structure according to any one of claims 1 to 4, characterized in that: The core tube (1) comprises a shear wall (11) and a core tube frame beam (12); the shear wall (11) and the core tube frame beam (12) are connected in a horizontal plane to form a closed structure; and the third thickness plate (33) is connected to the shear wall (11).
6. The floor slab structure according to claim 5, characterized in that: The third thickness plate (33) is connected to the corner of the shear wall (11).
7. The floor slab structure according to any one of claims 1 to 4, characterized in that: The floor slab (3) is provided with reinforcement (4), and the reinforcement (4) comprises full-length steel bars and additional steel bars.
8. The floor slab structure according to any one of claims 1 to 4, characterized in that: The external frame (2) comprises an external frame beam (21) and an external frame column (22), and the third thickness plate (33) is connected to the external frame column (22).
9. The floor slab structure according to claim 8, characterized in that: The distance between the core tube (1) and the outer frame (2) ranges from 9000 to 13000 mm, and the distance between two adjacent outer frame columns (22) ranges from 9000 to 12000 mm.
10. The floor slab structure according to any one of claims 1 to 4, characterized in that: The width of the first thickness plate (31), the second thickness plate (32), and the third thickness plate (33) is in the range of 2000-2500 mm.