Bathroom beam-free descending plate structure suitable for residential building
By adopting the design of main and drop plate reinforcement and additional reinforcement in the bathroom of residential buildings, combined with the integral cast concrete structure, the construction complexity problem caused by secondary beams was solved, and the effect of simplifying construction and improving waterproof reliability was achieved.
Patent Information
- Application Number
- CN202422816423.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-18
AI Technical Summary
In the prior art, in order to meet the requirements of the bathroom drop-down structure, a secondary beam is usually added at the drop-down position of the house, which makes the construction complicated and unsightly.
The invention provides a beam-free drop-slab structure suitable for bathrooms in residential buildings. The main and drop-slab reinforcements and additional reinforcements are arranged between the main body and the drop-slab body, and the structure is combined with an integrally cast concrete structure to avoid the need for secondary beams.
It simplifies the construction process, saves building materials, improves waterproof reliability, facilitates interior decoration, and keeps costs controllable.
Smart Images

Figure CN223358508U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of architectural design and construction technology, and specifically relates to a beam-free drop-slab structure suitable for bathrooms in residential buildings. Background Art
[0002] The local lifting slabs in buildings are mainly used in rooms with water, such as bathrooms, toilets, and kitchens. The reasons for lowering the bathroom slab are usually as follows: 1) to prevent water in the bathroom from flowing into other rooms; 2) to ensure that the raised floor after the squatting pit is installed is basically the same as the outside, to avoid excessive drop; 3) to facilitate ground drainage and slope construction. Generally speaking, the bathroom drainage pipes on this floor will be broken through at the top of the floor slab, which is not conducive to decoration and is not aesthetically pleasing. The function of the structural lowering slab is to make room for laying drainage pipes, and the accumulated water at the lowering position is discharged into the riser from the water discharge port of the riser. This can achieve the effect of drainage on the same floor, and also achieve an aesthetic effect.
[0003] Structural drop-slabs affect the layout of floor structures. Floor reinforcement cannot be pulled through the drop-slab area, making design and construction complex. To accommodate drop-slab construction, secondary beams are often added to anchor the floor reinforcement on both sides of the drop-slab. However, with increasing demands for higher quality housing, residents demand a perfectly flat floor within their apartment, and are reluctant to have obtrusive secondary beams that disrupt interior finishes. Utility Model Content
[0004] The embodiment of the present application provides a beam-free drop-slab structure suitable for bathrooms in residential buildings, thereby solving the problem in the prior art of adding secondary beams at the drop-slab location of the residential building to meet the drop-slab structure, which leads to complicated construction.
[0005] In order to achieve the above-mentioned object, the first embodiment of the present invention provides a beam-free drop-plate structure for a bathroom in a residential building, comprising a main plate body and a drop-plate body;
[0006] The main body is connected to the descending body, the bottom surface of the main body is flush with the bottom surface of the descending body, and the top surface of the main body is 20 to 50 mm higher than the top surface of the descending body;
[0007] The upper and lower parts of the main plate body are both provided with main plate reinforcement, and the upper and lower parts of the lower plate body are both provided with lower plate reinforcement;
[0008] Additional steel bars are provided at the upper and lower parts of the end of the main body, and the additional steel bars are provided between the main body steel bars at the upper part and the main body steel bars at the lower part of the main body, and the additional steel bars and the main body steel bars are provided perpendicularly;
[0009] The main board steel bars at the lower part of the main board body and the corresponding lowering board steel bars at the lower part of the lowering board body are whole steel bars; the lowering board steel bars at the upper part of the lowering board body extend into the main board body.
[0010] In a possible implementation, the thickness of the lowering plate body is greater than 80 mm.
[0011] In a possible implementation, there are multiple additional steel bars at the upper portion and the lower portion of the main body, and the multiple additional steel bars are spaced apart along the extension direction of the main body.
[0012] In one possible implementation, an L-shaped steel bar is provided at the end of the main board reinforcement at the upper part of the main board body, the vertical section of the L-shaped steel bar is provided on the side of the additional steel bar close to the lowering plate body, the horizontal section of the L-shaped steel bar extends into the lowering plate body, and the horizontal section of the L-shaped steel bar is provided close to the lower part of the lowering plate body.
[0013] The second embodiment of the present invention provides a beam-free lowering plate structure applicable to bathrooms in residential buildings, comprising a main plate body, a lowering plate body and an overlap section;
[0014] The main plate body and the descending plate body are connected by the overlapping section. The main plate body and the descending plate body have the same thickness. The top surface of the main plate body is flush with the top surface of the overlapping section. The bottom surface of the overlapping section is flush with the bottom surface of the descending plate body. The height difference between the main plate body and the descending plate body is c, and c is ≥ 50 mm.
[0015] The upper and lower parts of the main plate body are both provided with main plate reinforcement, and the upper and lower parts of the lower plate body are both provided with lower plate reinforcement;
[0016] Additional steel bars are provided at the ends of the main plate body, the ends of the drop plate body, and the upper and lower parts of the overlapped section. The additional steel bars are located between the upper and lower main plate steel bars or between the upper and lower drop plate steel bars. The additional steel bars are arranged perpendicular to the main plate steel bars and the drop plate steel bars.
[0017] The main board reinforcement at the lower portion of the main board body extends into the lowering board body, and the lowering board reinforcement at the upper portion of the lowering board body extends into the main board body.
[0018] In a possible implementation, the end of the main plate reinforcement at the upper portion of the main plate body is a first vertical segment, and the first vertical segment is vertically arranged on a side of the overlap segment close to the lowering plate body;
[0019] The end of the lowering steel bar at the lower part of the lowering plate body is a second vertical section, and the second vertical section is vertically arranged on a side of the overlapping section close to the main plate body.
[0020] In a possible implementation, the thickness of the main plate body and the lowering plate body is h, where h>c.
[0021] In a possible implementation, the length of the overlapping section is b, where b>6c.
[0022] In a possible implementation, the spacing of the additional steel bars in the overlap section is smaller than the spacing of the additional steel bars in the end of the main plate body and the end of the drop plate body.
[0023] In a possible implementation, the main plate body, the lowering plate body, and the overlapping section are an integrally cast concrete structure.
[0024] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
[0025] This utility model provides two beam-free lowering slab structures suitable for residential bathrooms. Based on the thickness and height of the lowering slabs on both sides, the lowering slabs can be constructed without beams by adding additional reinforcement to the bottom and top of the slabs or increasing the width of the intersection of the lowering slabs. This design optimizes the lowering slab structure in residential bathrooms, avoiding the need for secondary beams and the resulting complexity of construction. This simplifies construction, saves building materials, and facilitates later interior renovations. While meeting the relevant dimensional requirements of the building, this node structure, through structural optimization, is not only simple in construction but also highly waterproof, reliable, easy to construct, and cost-effective. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some of the embodiments described in this application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.
[0027] Figure 1 This is a structural diagram of a beam-free lowering slab structure for a bathroom in a residential building, provided in Example 1 of the utility model.
[0028] Figure 2 This is a structural diagram of a beam-free lowering slab structure for bathrooms in residential buildings, provided in Example 2 of the utility model.
[0029] Figure numerals: 1-main body; 2-drop plate body; 3-main body reinforcement; 4-drop plate reinforcement; 5-additional reinforcement; 6-L-shaped reinforcement; 7-lap section; 8-first vertical section; 9-second vertical section. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0031] In the description of the embodiments of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present invention. The terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.
[0032] like Figure 1 As shown, the first embodiment of the present invention provides a beam-free lowering plate structure for bathrooms in residential buildings, which includes a main plate body 1 and a lowering plate body 2.
[0033] The main body 1 and the descending body 2 are connected, the bottom surface of the main body 1 is flush with the bottom surface of the descending body 2, and the top surface of the main body 1 is 20 to 50 mm higher than the top surface of the descending body 2.
[0034] Main plate reinforcement bars 3 are provided at both the upper and lower parts of the main plate body 1 , and lower plate reinforcement bars 4 are provided at both the upper and lower parts of the lower plate body 2 .
[0035] Additional reinforcement 5 is provided at the upper and lower parts of the end of the main body 1. The additional reinforcement 5 is provided between the main reinforcement 3 at the upper part and the main reinforcement 3 at the lower part of the main body 1. The additional reinforcement 5 and the main reinforcement 3 are provided vertically.
[0036] The main plate steel bar 3 at the lower part of the main plate body 1 and the corresponding lower plate steel bar 4 at the lower part of the lower plate body 2 are whole steel bars. The lower plate steel bar 4 at the upper part of the lower plate body 2 extends into the main plate body 1.
[0037] In this embodiment, the thickness of the lowering plate body 2 is greater than 80 mm.
[0038] It should be noted that the main plate reinforcement 3, the lowering plate reinforcement 4 and the additional reinforcement 5 are all tied together, and the main plate body 1 and the lowering plate body 2 are an integrally cast concrete structure. The lowering plate structure of Example 1 of the present invention is suitable for situations where the height difference between the top surface of the main plate body 1 and the top surface of the lowering plate body 2 is small.
[0039] In this embodiment, there are multiple additional steel bars 5 at the upper part and multiple additional steel bars 5 at the lower part of the main body 1 , and the multiple additional steel bars 5 are arranged at intervals along the extension direction of the main body 1 .
[0040] It should be noted that, in this embodiment, there are two additional steel bars 5 at the upper part and two additional steel bars 5 at the lower part.
[0041] In this embodiment, an L-shaped steel bar 6 is provided at the end of the main board steel bar 3 at the upper part of the main board body 1, and the vertical section of the L-shaped steel bar 6 is provided on the side of the additional steel bar 5 close to the lowering board body 2. The horizontal section of the L-shaped steel bar 6 extends into the lowering board body 2, and the horizontal section of the L-shaped steel bar 6 is provided close to the lower part of the lowering board body 2.
[0042] It should be noted that the L-shaped steel bars 6 can further improve the structural strength of the drop-down structure.
[0043] like Figure 2 As shown, the second embodiment of the present invention provides a beam-free lowering plate structure suitable for bathrooms in residential buildings, comprising a main plate body 1, a lowering plate body 2 and an overlapping section 7.
[0044] The main board body 1 and the descending board body 2 are connected by an overlapping section 7. The main board body 1 and the descending board body 2 have the same thickness. The top surface of the main board body 1 is flush with the top surface of the overlapping section 7, and the bottom surface of the overlapping section 7 is flush with the bottom surface of the descending board body 2. The height difference between the main board body 1 and the descending board body 2 is c, c≥50mm.
[0045] Main plate reinforcement bars 3 are provided at both the upper and lower parts of the main plate body 1 , and lower plate reinforcement bars 4 are provided at both the upper and lower parts of the lower plate body 2 .
[0046] Additional steel bars 5 are provided at the ends of the main body 1, the ends of the drop plate body 2, and the upper and lower parts of the overlap section 7. The additional steel bars 5 are located between the upper and lower main board steel bars 3 or between the upper and lower drop plate steel bars 4. The additional steel bars 5 are arranged perpendicular to the main board steel bars 3 and the drop plate steel bars 4.
[0047] The main plate reinforcement 3 at the lower part of the main plate body 1 extends into the lower plate body 2 , and the lower plate reinforcement 4 at the upper part of the lower plate body 2 extends into the main plate body 1 .
[0048] It should be noted that the main plate reinforcement 3, the lowering plate reinforcement 4, and the additional reinforcement 5 are all tied together. The lowering plate structure of the second embodiment of the present invention is suitable for situations where there is a large height difference between the top surface of the main plate body 1 and the top surface of the lowering plate body 2. Such a structure can ensure that the lowering plate structure has sufficient strength.
[0049] In this embodiment, the end of the main plate reinforcement 3 on the upper part of the main plate body 1 is a first vertical section 8 , and the first vertical section 8 is vertically arranged on a side of the overlapping section 7 close to the lowering plate body 2 .
[0050] The end of the lowering steel bar 4 at the lower part of the lowering plate body 2 is a second vertical section 9 , and the second vertical section 9 is vertically arranged on a side of the overlapping section 7 close to the main plate body 1 .
[0051] It should be noted that the first vertical section 8 and the second vertical section 9 can further improve the structural strength of the drop-down structure. The overlap length of the steel bars must meet the anchoring requirements.
[0052] In this embodiment, the thickness of the main plate body 1 and the descending plate body 2 is h, and h>c.
[0053] In this embodiment, the length of the overlapping section 7 is b, and b>6c.
[0054] It should be noted that the specifications of the overlapping section 7, the main plate body 1 and the lowering plate body 2 are set to ensure that the lowering plate structure has sufficient strength.
[0055] In this embodiment, the spacing between the additional steel bars 5 in the overlapping section 7 is smaller than the spacing between the additional steel bars 5 in the end of the main plate body 1 and the end of the lowering plate body 2 .
[0056] In this embodiment, the main plate body 1, the lowering plate body 2 and the overlapping section 7 are an integrally cast concrete structure.
[0057] The present utility model provides two beam-free lowering slab structures suitable for residential bathrooms. Depending on the thickness and height of the lowering slabs, additional reinforcement 5 is added to the bottom and top of the slabs, or the width of the intersection of the lowering slabs is increased to achieve a beam-free lowering slab structure. This design optimizes the lowering slab structure for residential bathrooms, avoiding the need for secondary beams and the resulting complexity of construction. This simplifies construction, saves building materials, and facilitates later interior renovations. While meeting the relevant building dimensional requirements, this node structure, through structural optimization, is not only simple in construction but also highly waterproof, reliable, easy to construct, and cost-effective.
[0058] In this embodiment, it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of equivalents of the claims be included in the present invention.
Claims
1. A beam-free drop-slab structure for bathrooms in residential buildings, characterized by: It comprises a main plate body (1) and a descending plate body (2); The main plate body (1) and the descending plate body (2) are connected, the bottom surface of the main plate body (1) is flush with the bottom surface of the descending plate body (2), and the top surface of the main plate body (1) is 20 to 50 mm higher than the top surface of the descending plate body (2); The upper and lower parts of the main plate body (1) are both provided with main plate reinforcement (3), and the upper and lower parts of the lower plate body (2) are both provided with lower plate reinforcement (4); Additional steel bars (5) are provided at both the upper and lower parts of the end of the main body (1), and the additional steel bars (5) are provided between the main body steel bars (3) at the upper part and the main body steel bars (3) at the lower part of the main body (1), and the additional steel bars (5) and the main body steel bars (3) are provided vertically; The main plate steel bars (3) at the lower part of the main plate body (1) and the corresponding lowering plate steel bars (4) at the lower part of the lowering plate body (2) are whole steel bars; the lowering plate steel bars (4) at the upper part of the lowering plate body (2) extend into the main plate body (1).
2. The beam-free lowering slab structure for bathrooms in residential buildings according to claim 1 is characterized in that: The thickness of the lowering plate body (2) is greater than 80 mm.
3. The beam-free drop-slab structure for bathrooms in residential buildings according to claim 1 is characterized in that: The number of the additional steel bars (5) at the upper part and the additional steel bars (5) at the lower part of the main body (1) is multiple, and the multiple additional steel bars (5) are arranged at intervals along the extension direction of the main body (1).
4. The beam-free lowering slab structure for bathrooms in residential buildings according to claim 3 is characterized in that: An L-shaped steel bar (6) is provided at the end of the main steel bar (3) at the upper part of the main body (1); the vertical section of the L-shaped steel bar (6) is provided on a side of the additional steel bar (5) close to the lowering body (2); the horizontal section of the L-shaped steel bar (6) extends into the lowering body (2); and the horizontal section of the L-shaped steel bar (6) is provided close to the lower part of the lowering body (2).
5. A beam-free drop-slab structure for bathrooms in residential buildings, characterized by: It comprises a main plate body (1), a descending plate body (2) and an overlapping section (7); The main plate body (1) and the descending plate body (2) are connected via the overlapping section (7); the main plate body (1) and the descending plate body (2) have the same thickness; the top surface of the main plate body (1) is flush with the top surface of the overlapping section (7); the bottom surface of the overlapping section (7) is flush with the bottom surface of the descending plate body (2); and the height difference between the main plate body (1) and the descending plate body (2) is c, c ≥ 50 mm; The upper and lower parts of the main plate body (1) are both provided with main plate reinforcement (3), and the upper and lower parts of the lower plate body (2) are both provided with lower plate reinforcement (4); Additional steel bars (5) are provided at the ends of the main plate body (1), the ends of the drop plate body (2), and the upper and lower parts of the overlap section (7). The additional steel bars (5) are located between the upper and lower main plate steel bars (3) or between the upper and lower drop plate steel bars (4). The additional steel bars (5) are arranged perpendicular to the main plate steel bars (3) and the drop plate steel bars (4). The main plate reinforcement (3) at the lower part of the main plate body (1) extends into the lowering plate body (2), and the lowering plate reinforcement (4) at the upper part of the lowering plate body (2) extends into the main plate body (1).
6. The beam-free lowering slab structure for bathrooms in residential buildings according to claim 5 is characterized in that: The end of the main plate reinforcement (3) on the upper part of the main plate body (1) is a first vertical section (8), and the first vertical section (8) is vertically arranged on a side of the overlapping section (7) close to the lowering plate body (2); The end of the lowering steel bar (4) at the lower part of the lowering plate body (2) is a second vertical section (9), and the second vertical section (9) is vertically arranged on a side of the overlapping section (7) close to the main plate body (1).
7. The beam-free lowering slab structure for bathrooms in residential buildings according to claim 6, characterized in that: The thickness of the main plate body (1) and the descending plate body (2) is h, and h>c.
8. The beam-free lowering slab structure for bathrooms in residential buildings according to claim 7 is characterized in that: The length of the overlapping section (7) is b, and b>6c.
9. The beam-free drop-slab structure for bathrooms in residential buildings according to claim 8, characterized in that: The spacing of the additional steel bars (5) in the overlap section (7) is smaller than the spacing of the additional steel bars (5) in the end of the main plate body (1) and the end of the drop plate body (2).
10. The beam-free drop-slab structure for bathrooms in residential buildings according to claim 9, characterized in that: The main plate body (1), the lowering plate body (2) and the overlapping section (7) are an integrally cast concrete structure.