Building floor slab with reinforcing rib plate structure
By introducing ribbed structure and double-layer composite structure into the floor slabs of the building, the problems of light and thin floor structure, poor bearing capacity and poor sound insulation are solved, and higher bearing capacity and better sound insulation are achieved.
Patent Information
- Application Number
- CN202422257607.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The floor slabs of existing buildings have thin and light structures, poor bearing capacity and poor sound insulation.
A double-layer composite floor structure based on ribbed structure is designed to improve the bearing capacity through the ribbed plate combined with the building wall, and to enhance the sound insulation effect through the double-layer structure and built-in sound insulation cavity.
It effectively improves the bearing capacity of the floor slab, improves the sound insulation effect, and avoids structural cracks between the floor slab body and the ribbed frame.
Smart Images
Figure CN223034297U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of building floors, in particular to a building floor with a reinforced rib plate structure. Background Technique
[0002] With the development of building construction technology and the improvement of people's living standards, the construction standards of the main structures of buildings, especially high-rise buildings, are constantly increasing. The floor structure between floors of high-rise buildings, as the only main structure separating the upper and lower users, not only plays a role in separating spaces, but also bears the upper load and isolates the transmission of noise.
[0003] The structural strength and stiffness of building floors are important factors affecting their bearing capacity. The existing floor structures are designed to be relatively thin and light in order to reduce the structural self-weight, and even the hollow plate structure is adopted. Therefore, the bearing capacity is small and the sound insulation effect is poor.
[0004] Therefore, in view of the above-mentioned situation that the existing building floor structure is thin and light, has poor bearing capacity and poor sound insulation effect, a double-layer composite floor structure based on the rib plate structure can be designed. By means of the rib plates combined with the building walls, the bearing capacity of the floor can be greatly improved, and the sound insulation effect can be enhanced through the double-layer structure and the built-in sound insulation cavity. Content of the Utility Model
[0005] In order to overcome the problems of the existing building floor structure being thin and light, having poor bearing capacity and poor sound insulation effect.
[0006] The technical solution of the utility model is: a building floor with a reinforced rib plate structure, including a floor body, a rib plate frame, a bottom beam frame, a sunken plate and a steel plate; a steel mesh connected to the steel bar skeleton in the building wall is implanted in the floor body. The floor body is integrally formed and cast between the building walls and divides the internal space of the building into upper and lower layers. Along the direction of the short side of the floor body, rib plate frames are equidistantly arranged at intervals of 0.5 m - 1.5 m. The rib plate frames are arched structures and are cast and fixed at the lower end of the floor body. There are connecting pieces between the rib plate frames and the floor body. The bottom beam frame and the rib plate frame are cross-cast at the lower end of the rib plate frame. A sunken plate is integrally cast and formed at the lower end of the bottom beam frame. There is a sound insulation chamber divided by the rib plate frame and the bottom beam frame between the sunken plate and the floor body, and a sound insulation layer is arranged in the sound insulation chamber.
[0007] Preferably, when fabricating the floor slab, first fabricate and assemble the formworks of the sunken slab, the bottom beam frame and the ribbed slab frame. Then, implant steel bars into the formwork of the bottom beam frame and connect them with the steel bar framework of the building exterior wall. Next, set prestressing tendons in the formwork of the ribbed slab frame and tension them. At the same time, fix the connecting members in the formwork of the ribbed slab frame. Then, pour the concrete for the sunken slab, the bottom beam frame and the corresponding building exterior wall. Before the concrete begins to set, pour the concrete for the ribbed slab frame and the corresponding exterior wall for the second time. After the pouring is completed and the concrete begins to set, relax the prestressing tendons. The ribbed slab frame arches due to the relaxation of the prestressing tendons. Then, place a sound insulation layer on the sunken slab. Then, pour the floor slab body on the ribbed slab frame. The floor slab body of the ribbed slab frame is combined through the connecting members, integrally forming a double-layer structure of the floor slab body and the sunken slab, with a ribbed slab frame and a sound insulation layer with enhanced bearing capacity between the layers.
[0008] Preferably, prestressing tendons are threaded through and tensioned in the ribbed slab frame. Both ends of the ribbed slab frame are embedded in the building exterior wall and integrally cast. The two ends of the prestressing tendons penetrate out of the building exterior wall and are sealed and anchored. The ribbed slab frame adopts the pre-tensioning prestressed construction technology. The prestressing tendons are tensioned before pouring the concrete and relaxed after the concrete is poured. After the prestressing tendons contract, they generate extrusion pressure inside the concrete, causing the concrete to arch and improving the working performance of the ribbed slab frame structure. The existence of the prestressing tendons will cause the ribbed slab frame to first offset the existing pre-stress in the ribbed slab frame when bearing the load. Subsequently, as the load increases, the ribbed slab frame will begin to be in tension. This design can prevent the ribbed slab frame from cracking or the cracks appearing relatively late under normal use conditions, providing the maximum bearing capacity for the upper floor slab body. The prestressing is tied to the outside of the building exterior wall and sealed with the anchoring technology.
[0009] Preferably, the connecting member is a steel plate with a width of 20 cm. The lower part of the steel plate is embedded in the ribbed slab frame, and the upper part of the steel plate is embedded in the floor slab body and welded and fixed to the steel bar mesh in the floor slab body. The upper and lower parts of the steel plate are respectively combined with the ribbed slab frame and the floor slab body, tying the two together to prevent excessive structural cracks from occurring between the floor slab body and the ribbed slab frame due to the shrinkage of the floor slab body concrete, resulting in abnormal force transmission.
[0010] Preferably, the connecting member is a stirrup with a height of 20 cm. The lower feet of the stirrup are embedded in the ribbed slab frame, and the upper part of the stirrup is embedded in the floor slab body and welded and fixed to the steel bar mesh in the floor slab body. The upper and lower parts of the stirrup are respectively combined with the ribbed slab frame and the floor slab body, tying the two together. At the same time, the upper structure of the stirrup is U-shaped, and the concrete of the floor slab body has a better grip on it, preventing excessive structural cracks from occurring between the floor slab body and the ribbed slab frame due to the shrinkage of the floor slab body concrete, resulting in abnormal force transmission.
[0011] Preferably, the sunken slab is a plain concrete slab with a thickness of 5-8 cm. A wire mesh with a mesh aperture of 1-2 cm is laid in the sunken slab. The edge of the wire mesh is embedded in the exterior wall of the building, and the edge of the sunken slab is integrally cast with the exterior wall of the building. The sunken slab does not bear the load. As the top slab of the lower space of the building, it has a light and thin structure, and the wire mesh is used to prevent the concrete from cracking.
[0012] Preferably, asphalt layers are laid on the lower surface of the floor slab body and the upper surface of the sunken slab. The sound insulation layer is adhesively fixed to the asphalt layer and tightly filled in the sound insulation chamber. Before setting the sound insulation layer, an asphalt layer is first set on the lower surface of the floor slab body and the upper surface of the sunken slab as an adhesive, and the asphalt layer has a waterproof function to prevent the water from above from seeping downwards. Materials such as polymer rubber, plastic or felt used for the sound insulation layer can be fully adhesively fixed to the asphalt layer. When the floor slab body is made by the cast-in-place method, the asphalt layer does not need to be laid, and when it adopts an assembled structure, the asphalt layer can be laid.
[0013] The beneficial effects of the present utility model are as follows:
[0014] 1. Through the ribbed frame arranged under the floor slab body, with the full combination with the building wall, it plays a role in supporting and strengthening the floor slab body, improves the bearing capacity of the floor slab body, and the floor slab body is not easy to break;
[0015] 2. Through the double-layer composite design of the floor slab body and the sunken slab to form a sound insulation chamber, with the cooperation of the internally arranged sound insulation layer, it effectively isolates the noise in the upper space and avoids the noise passing through the floor slab body to interfere with the lower floor residents;
[0016] 3. The setting of the connecting piece between the floor slab body and the ribbed frame makes their combination more firm, and avoids the structural cracks from coming apart due to the shrinkage of the concrete. Description of the Drawings
[0017] Figure 1 Shown is a three-dimensional structural schematic diagram of a building floor slab with a reinforced ribbed structure of the present utility model;
[0018] Figure 2 Shown is a top view structural schematic diagram of a building floor slab with a reinforced ribbed structure of the present utility model;
[0019] Figure 3 Shown is a front view structural schematic diagram of a building floor slab with a reinforced ribbed structure of the present utility model;
[0020] Figure 4 Shown is a side view structural schematic diagram of a building floor slab with a reinforced ribbed structure of the present utility model;
[0021] Figure 5 Shown is a three-dimensional structural schematic diagram of Embodiment 1 of the connecting piece of a building floor slab with a reinforced ribbed structure of the present utility model;
[0022] Figure 6 Shown is a schematic three-dimensional structure diagram of the second embodiment of the building floor slab with a reinforcing rib structure according to the present utility model;
[0023] Figure 7 Shown is a partially enlarged structural schematic diagram between the floor slab body and the sunken slab of the building floor slab with a reinforcing rib structure according to the present utility model.
[0024] Explanation of reference numerals: 1, floor slab body; 2, rib frame; 3, bottom beam frame; 4, sunken slab; 5, steel plate; 6, stirrup bar; 7, wire mesh; 8, sound insulation layer. Detailed implementation manners
[0025] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0026] Please refer to Figures 1-7 , the present utility model provides a building floor slab with a reinforcing rib structure, including a floor slab body 1, a rib frame 2, a bottom beam frame 3, a sunken slab 4 and a steel plate 5; a steel bar mesh connected to the steel bar skeleton in the building wall is implanted in the floor slab body 1, and the floor slab body 1 is integrally formed and cast between the building walls to divide the internal space of the building into upper and lower layers. The lower end of the floor slab body 1 is provided with rib frames 2 at equal intervals along the short side direction of itself at a length interval of 0.5 m - 1.5 m. The rib frames 2 are in an arched structure and are cast and fixed at the lower end of the floor slab body 1. A connecting member is provided between the rib frames 2 and the floor slab body 1. The bottom beam frame 3 and the rib frames 2 are cast in a cross shape at the lower end of the rib frames 2. A sunken slab 4 is integrally cast and formed at the lower end of the bottom beam frame 3. A sound insulation chamber divided by the rib frames 2 and the bottom beam frame 3 is provided between the sunken slab 4 and the floor slab body 1. A sound insulation layer 8 is provided in the sound insulation chamber. When manufacturing the floor slab, first, the formworks of the sunken slab 4, the bottom beam frame 3 and the rib frames 2 are manufactured and assembled, then steel bars are implanted into the formwork of the bottom beam frame 3 and connected to the steel bar skeleton of the building exterior wall. Then, prestressing tendons are arranged and tensioned in the formwork of the rib frames 2, and at the same time, the connecting members are fixed in the formwork of the rib frames 2. Then, the sunken slab 4, the bottom beam frame 3 and the corresponding building exterior wall concrete are cast. Before the concrete initial sets, the rib frames 2 and the corresponding exterior wall concrete are cast for the second time. After the casting is completed and the concrete initial sets, the prestressing tendons are relaxed. The rib frames 2 arch under the action of the relaxation of the prestressing tendons. Then, the sound insulation layer 8 is placed on the sunken slab 4, and then the floor slab body 1 is cast on the rib frames 2. The floor slab body 1 is combined with the rib frames 2 through the connecting members to form a double-layer structure of the floor slab body 1 and the sunken slab 4 as a whole, and there are rib frames 2 and a sound insulation layer 8 with enhanced bearing capacity between the layers.
[0027] Please refer to Figures 1-4 , Figure 7, prestressing tendons are inserted and tensioned inside the ribbed slab frame 2. Both ends of the ribbed slab frame 2 are embedded in the building exterior wall and integrally cast. The two ends of the prestressing tendons pass through and are pulled out of the building exterior wall and sealed and anchored. The ribbed slab frame 2 adopts the pretensioning prestressed construction technology. The prestressing tendons are tensioned before pouring concrete and released after the concrete is poured. After the prestressing tendons shrink, they generate extrusion pressure on the interior of the concrete, causing the concrete to arch and improving the working performance of the ribbed slab frame 2 structure. The existence of the prestressing tendons will cause the ribbed slab frame 2 to first offset the existing prestress in the ribbed slab frame 2 when bearing loads. Subsequently, as the load increases, the ribbed slab frame 2 will begin to be in tension. This design can prevent the ribbed slab frame 2 from cracking or the cracks from appearing relatively late under normal use conditions, providing the maximum load-bearing capacity for the upper floor slab body 1. The prestressing is tied to the outside of the building exterior wall and sealed using the anchoring technology. The sunken slab 4 is a plain concrete slab with a thickness of 5 - 8 cm. A wire mesh 7 with a mesh aperture of 1 - 2 cm is laid inside the sunken slab 4. The edge of the wire mesh 7 is embedded in the building exterior wall and the edge of the sunken slab 4 is integrally cast with the building exterior wall. The sunken slab 4 does not bear loads. As the top slab of the lower space of the building, its structure is light and thin, and the wire mesh 7 is used to prevent the concrete from cracking. Asphalt layers are laid on the lower surface of the floor slab body 1 and the upper surface of the sunken slab 4. The sound insulation layer 8 is adhesively fixed to the asphalt layer and tightly filled in the sound insulation chamber. Before setting the sound insulation layer 8, an asphalt layer is first set on the lower surface of the floor slab body 1 and the upper surface of the sunken slab 4 as an adhesive, and the asphalt layer has a waterproof function to prevent the water from seeping down from the upper part. The materials such as high molecular rubber, plastic or felt used for the sound insulation layer 8 can be fully adhesively fixed to the asphalt layer. When the floor slab body 1 is made by the in-situ casting method, the asphalt layer does not need to be laid. When it adopts the prefabricated structure, the asphalt layer can be laid.
[0028] Example 1: Please refer to Figure 5 , in this example, the connecting member is a steel plate 5 with a width of 20 cm. The lower part of the steel plate 5 is embedded in the ribbed slab frame 2, and the upper part of the steel plate 5 is embedded in the floor slab body 1 and welded and fixed to the steel bar mesh inside the floor slab body 1. The upper and lower parts of the steel plate 5 are respectively combined with the ribbed slab frame 2 and the floor slab body 1, tying the two together to prevent excessive structural cracks from occurring between the floor slab body 1 and the ribbed slab frame 2 due to the shrinkage of the floor slab body 1 concrete and thus unable to transfer forces normally.
[0029] Example 2: Please refer to Figure 6, in this embodiment, the connecting member is the stool bar 6 with a height of 20 cm. The feet at the lower part of the stool bar 6 are embedded in the ribbed plate frame 2, and the upper part of the stool bar 6 is embedded in the floor slab body 1 and welded and fixed to the steel mesh in the floor slab body 1. The upper and lower parts of the stool bar 6 are respectively combined with the ribbed plate frame 2 and the floor slab body 1 to tie the two together. At the same time, the upper structure of the stool bar 6 is U-shaped, and the concrete of the floor slab body 1 has a better wrapping effect on it, avoiding excessive structural cracks between it and the ribbed plate frame 2 due to the shrinkage of the concrete of the floor slab body 1 and thus unable to transfer force normally.
[0030] Through the above steps, the ribbed plate frame 2 arranged under the floor slab body 1, with the help of full combination with the building wall, plays a role of supporting and strengthening the floor slab body 1, improving the bearing capacity of the floor slab body 1. The floor slab body 1 is not easily broken. The double-layer composite design of the floor slab body 1 and the sunken plate 4 forms a sound insulation chamber, which, in cooperation with the internal sound insulation layer 8, effectively isolates the noise in the upper space and avoids the noise passing through the floor slab body 1 to interfere with the lower floor residents, so as to solve the problems of the existing building floor slab structure being thin and light, having poor bearing capacity and poor sound insulation effect.
Claims
1. A building floor with a reinforced rib structure, comprising a floor body (1); characterized in that: The floor slab body (1) is provided with a steel mesh connected to a steel skeleton in a wall of a building. The floor slab body (1) is integrally formed and cast between the walls of the building and divides the internal space of the building into two upper and lower floors. The rib frames (2) are evenly spaced at intervals of 0.5 m to 1.5 m along the short side of the floor slab body (1). The rib frames (2) are arched. The structure is cast and fixed at the lower end of the floor slab body (1); a connecting piece is provided between the rib frame (2) and the floor slab body (1); the bottom beam frame (3) and the rib frame (2) are cast at the lower end of the rib frame (2) in a cross shape; a sinking plate (4) is integrally cast at the lower end of the bottom beam frame (3); a sound insulation chamber separated by the rib frame (2) and the bottom beam frame (3) is provided between the sinking plate (4) and the floor slab body (1); a sound insulation layer (8) is provided in the sound insulation chamber.
2. The building floor with a reinforced rib structure according to claim 1, characterized in that: Prestressed tendons are inserted and tensioned in the rib frame (2), both ends of the rib frame (2) are embedded in the outer wall of the building and cast in one piece, and both ends of the prestressed tendons are inserted and pulled out of the outer wall of the building and are anchored and fixed.
3. The building floor with a reinforced rib structure according to claim 1, characterized in that: The connecting piece is a steel plate (5) with a width of 20 cm. The lower part of the steel plate (5) is embedded in the rib frame (2), and the upper part of the steel plate (5) is embedded in the floor slab body (1) and is welded and fixed to the steel mesh in the floor slab body (1).
4. The building floor with a reinforced rib structure according to claim 1, characterized in that: The connecting member is a 20 cm high horse stool reinforcement (6), the lower support leg of the horse stool reinforcement (6) is embedded in the rib frame (2), and the upper part of the horse stool reinforcement (6) is embedded in the floor slab body (1) and is welded and fixed to the steel mesh in the floor slab body (1).
5. The building floor with a reinforced rib structure according to claim 1, characterized in that: The sinking plate (4) is a plain concrete plate with a thickness of 5-8 cm. A steel wire mesh (7) with a mesh size of 1-2 cm is laid inside the sinking plate (4). The edge of the steel wire mesh (7) is embedded in the outer wall of the building, and the edge of the sinking plate (4) and the outer wall of the building are integrally cast and formed.
6. The building floor with a reinforced rib structure according to claim 1, characterized in that: The lower surface of the floor slab body (1) and the upper surface of the sinking plate (4) are both paved with an asphalt layer, and the sound insulation layer (8) is adhered and fixed to the asphalt layer and tightly filled in the sound insulation chamber.