Novel DCKQ cavity component for house building engineering
By employing a design with dimensionally differentiated concrete slabs and pre-embedded reinforcing bars in the DCKQ cavity components, combined with structural adhesive and reinforcing bar binding, the problems of concrete floating and installation deviation were solved, achieving higher structural safety and economic benefits.
Patent Information
- Application Number
- CN202423310937.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing DCKQ cavity components are prone to floating during concrete pouring, leading to grout leakage at the bottom. Furthermore, the lack of effective fixing methods between components results in installation position deviations, affecting structural safety and subsequent repair costs.
A novel DCKQ cavity component was designed, which adopts a design with different dimensions for the bottom concrete slab and the top concrete slab. Reinforcing bars are pre-embedded in the bottom concrete slab. Combined with the use of U-shaped grooves and structural adhesive, a fixed connection is formed between the ribbed beams and the cavity component through the binding of reinforcing bars and the cast-in-place concrete.
This effectively avoids the problem of grout leakage caused by concrete floating, ensures the accuracy of component installation, improves structural safety, reduces subsequent repair costs, and enhances construction quality and economic benefits.
Smart Images
Figure CN223661146U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of assembled floor, specifically relates to a novel DCKQ cavity component for house building engineering. BACKGROUND
[0002] The DCKQ cavity component is a core component of an assembled prefabricated bidirectional ribbed cavity floor system. The assembled prefabricated ribbed cavity floor system is a novel floor form, and is suitable for large-span space structures. Since the cavity component is adopted, the cavity component is convenient to assemble and install, construction is simple, and the construction period is short. The indoor ceiling is flat, and it is not necessary to rehang the ceiling, so that the cavity component has good architectural space effect and remarkable economic benefits. At present, the technology has been widely applied to building engineering.
[0003] The assembled prefabricated bidirectional ribbed cavity floor system is a novel cast-in-situ concrete ribbed floor structure technology based on the DCKQ cavity component. The DCKQ cavity component, the cast-in-situ reinforced concrete ribbed beam and the frame beam are combined to form a horizontal floor system. The DCKQ cavity component is a hollow cavity composed of two upper and lower reinforced concrete plates (or one bottom concrete plate) and four peripheral side walls made of hard materials (glass fiber cement, high-strength aluminum calcium plate and the like). The DCKQ cavity component can bear stress, support formwork, increase the stiffness of the floor and reduce the self-weight of the floor.
[0004] The existing DCKQ cavity component has the following shortcomings: Since the cavity plate is not solid, the concrete is prone to float during the concrete pouring process, which causes serious leakage of the bottom slurry and causes certain difficulties for subsequent decoration. Therefore, it is difficult to control the leakage of the bottom slurry of the cavity plate during the concrete pouring process. Meanwhile, the DCKQ cavity component and the steel ribbed beam are arranged in a staggered manner, and there is no good fixing method between the DCKQ cavity components, which easily causes installation position deviation. Therefore, a novel DCKQ cavity component is proposed. Utility model content
[0005] In order to solve the above problems, the utility model provides a novel DCKQ cavity component for house building engineering, which avoids the floating of the concrete during the concrete pouring process, causes the leakage of the bottom slurry, and avoids the installation position deviation and other quality problems caused by the mutual fixation and connection between the cavity components. The structural safety is improved, the cost of subsequent large amount of concrete repair is avoided, and the technical defects of the existing DCKQ cavity component are made up.
[0006] The technical scheme of the utility model is as follows:
[0007] The utility model provides a new DCKQ cavity component for house building engineering, which is composed of cavity components and dense ribbed beams. The cavity component is composed of a bottom concrete slab, a square cavity and a top concrete slab. The square cavity has the same size as the top concrete slab, and the bottom concrete slab has a larger size than the top concrete slab. A plurality of first steel bars are embedded in the four sides of the top concrete slab. A plurality of second steel bars are arranged on two adjacent sides of the bottom concrete slab, and U-shaped grooves corresponding to the second steel bars are arranged on the other two sides. The dense ribbed beam is arranged between two cavity components.
[0008] The dense ribbed beam is formed by embedding a steel framework and pouring concrete.
[0009] The square cavity is composed of a bottom plate, a cover plate, reinforcing ribs and side walls. The hollow cavity is composed of a nine-square grid structure by the reinforcing ribs. The bottom plate is fixedly connected to the bottom concrete slab by a plurality of cement nails. The reinforcing ribs have a height lower than that of the side walls, and form a groove for accommodating the cover plate at the top of the square cavity. The cover plate is fixedly connected to the top concrete slab by a plurality of cement nails. The cover plate is placed in the groove, and the side walls are fixedly connected to the cover plate by penetrating steel nails.
[0010] The square cavity is a hollow cavity made of hard material.
[0011] The square cavity is a closed hollow cavity enclosed by glass fiber reinforced cement.
[0012] The square cavity is a closed hollow cavity enclosed by high-strength calcium plate.
[0013] The bottom concrete slab is 100 mm wider than the top concrete slab on each side.
[0014] Before the second steel bar is inserted into the U-shaped groove, structural adhesive is injected into the U-shaped groove.
[0015] Structural adhesive is applied to the side surface of the bottom concrete slab of the two adjacent cavity components in contact.
[0016] The steel framework embedded in the dense ribbed beam is bundled together with the first steel bars.
[0017] The second steel bar is provided with a horizontal rib, and the U-shaped groove is provided with a horizontal groove corresponding to the horizontal rib.
[0018] The utility model has the advantages of:
[0019] 1. The new DCKQ cavity component for house building engineering disclosed by the utility model avoids the bottom leakage caused by floating during the concrete pouring process.
[0020] 2. The utility model discloses a novel DCKQ cavity component for house building engineering, which avoids quality problems such as installation position deviation through mutual fixed connection between cavity components.
[0021] 3. The utility model discloses a novel DCKQ cavity component for house building engineering, which improves structural safety, avoids subsequent large amount of concrete repair cost, makes up for technical defects of the existing DCKQ cavity component, and can produce certain economic benefits. DRAWINGS
[0022] The scheme and advantages of the present application will become clear to those skilled in the art from the following detailed description of the preferred embodiments. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered as limiting the utility model.
[0023] In the drawings:
[0024] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model combination after implementation;
[0025] Figure 2 is a schematic diagram of the three-dimensional structure of the cavity component embodiment one of the utility model;
[0026] Figure 3 is a schematic diagram of the three-dimensional structure of the cavity component embodiment one of the utility model;
[0027] Figure 4 is a schematic diagram of the three-dimensional structure of the cavity component embodiment two of the utility model;
[0028] Figure 5 is a schematic diagram of the three-dimensional structure of the cavity component embodiment two of the utility model;
[0029] Figure 6 is a schematic diagram of the square cavity structure of the utility model.
[0030] The components represented by the various reference signs in the drawings are:
[0031] The utility model: 1, bottom concrete slab, 2, square cavity, 3, top concrete slab, 4, first steel bar, 5, DCKQ cavity component, 6, dense rib beam, 7, second steel bar, 8, bottom plate, 9, cover plate, 10, reinforcing rib, 11, U-shaped groove, 12 side wall, 13, recess, 14, cross rib, 15, horizontal groove. DETAILED DESCRIPTION
[0032] The utility model will be further explained below in conjunction with the drawings attached to the specification. Figures 1-6 The utility model will be further explained below in conjunction with the drawings attached to the specification.
[0033] The utility model provides a new DCKQ cavity component for house building engineering, which is composed of cavity components 5 and dense ribbed beams 6. The cavity component 5 is composed of a bottom concrete slab 1, a square cavity 2 and a top concrete slab 3. The square cavity 2 has the same size as the top concrete slab 3, and the size of the bottom concrete slab 1 is larger than that of the top concrete slab 3. A plurality of first reinforcing steels 4 are embedded in the four sides of the top concrete slab 3 respectively. A plurality of second reinforcing steels 7 are arranged on two adjacent sides of the bottom concrete slab 1, and U-shaped grooves 11 matched with the second reinforcing steels 7 are arranged on the other two corresponding sides. The dense ribbed beam 6 is arranged between two cavity components 5.
[0034] The dense ribbed beam 6 is formed by embedding a reinforcing steel framework and pouring concrete on site.
[0035] The square cavity 2 is a hollow cavity made of hard material.
[0036] The square cavity 2 is a closed hollow cavity enclosed by glass fiber reinforced cement.
[0037] The square cavity 2 is a closed hollow cavity enclosed by high-strength calcium plate.
[0038] The bottom concrete slab 1 is 100 mm wider than the top concrete slab 3 on each side.
[0039] Before the second reinforcing steel 7 is inserted into the U-shaped groove 11, structural adhesive is injected into the U-shaped groove 11.
[0040] Structural adhesive is applied to the side of the bottom concrete slab 1 of the two adjacent cavity components 5 that are in contact.
[0041] The reinforcing steel framework embedded in the dense ribbed beam 6 is bundled together with the first reinforcing steel 4.
[0042] The second reinforcing steel 7 is provided with a horizontal rib 15, and the U-shaped groove 11 is provided with a horizontal groove 15 corresponding to the horizontal rib 14.
[0043] The new DCKQ cavity component is composed of cavity components 5 and dense ribbed beams 6. The cavity component 5 is composed of a bottom concrete slab 1, a square cavity 2 and a top concrete slab 3. The dense ribbed beam 6 is a steel reinforcing batten tied with reinforcing steel. Then, the concrete is poured on site. It should be noted that, Figure 1 In order to facilitate observation of the steel reinforcing batten hidden by the poured concrete, the poured concrete is not shown.
[0044] The square cavity 2 is composed of a bottom plate 8, a cover plate 9, reinforcing ribs 10 and side walls 12, is a hollow cavity made of hard material, and the hollow cavity is composed of a nine-square grid structure by the reinforcing ribs 10. The bottom plate 8 is fixedly connected with the bottom concrete slab 1 by a plurality of cement nails; the reinforcing ribs 10 are lower than the side walls 12, and a groove 13 for accommodating the cover plate 9 is formed at the top of the square cavity 2, the cover plate 9 is fixedly connected with the top concrete slab 3 by a plurality of cement nails, then the cover plate 9 is placed in the groove 13, and the cover plate 9 is fixedly connected with the side walls 12 by steel nails. A closed cavity structure is formed. The side walls 12 and the reinforcing ribs 10 are closed hollow cavities enclosed by glass fiber reinforced cement or high-strength calcium plate. The bottom concrete slab 1 is 100 mm wider than each side of the top concrete slab 3.
[0045] In one specific embodiment: the bottom concrete slab is extended outward by a length equal to the width of the along-plate (the gap width between the two cavity components during construction = the width of the dense rib beam 180 mm + the thickness of the protective layer at the cavity side wall part 20 mm = 200 mm, the bottom concrete of the single cavity component extends outward by 100 mm, which can cover the bottom of the dense rib beam), the bottom of the dense rib beam is fully covered, and positioning inaccuracies, cavity component floating, grout leakage and other quality problems are avoided.
[0046] A U-shaped groove (the diameter of the U-shaped groove is at least 1.5 times the diameter of the steel bar, to ensure sufficient fault tolerance space and structural adhesive storage space) is added to the bottom concrete slab, the cavity plate bottom steel bar is arranged correspondingly with the U-shaped groove, the second steel bar of the bottom concrete slab of two adjacent cavity components is butt-jointed with the U-shaped groove during construction, and the adjacent cavity components are connected by brushing structural adhesive at the edge of the bottom concrete.
[0047] After the new DCKQ cavity component is applied, the dense rib beam steel bar is directly bound on the extended and butt-jointed concrete slab at the bottom of the cavity component, the bottom concrete needs to be brushed and roughened before the steel bar is bound, the bottom concrete serves as the dense rib beam steel bar protective layer and the bottom formwork after the dense rib beam steel bar binding is completed, and is combined with the cast-in-place concrete. The steel bar of the upper concrete slab of the cavity component extends into the surrounding cast-in-place concrete dense rib beam and is bound and fixed, to ensure that the cavity component and the cast-in-place structure form a stress whole.
[0048] The application extends the bottom concrete sealing plate of the dense rib beam by extending the bottom concrete slab of the cavity component outward.
[0049] The application arranges the second steel bar correspondingly with the U-shaped groove by adding the U-shaped groove to the bottom concrete slab of the cavity component, and the adjacent side steel bars of the cavity component are arranged interlacedly with the U-shaped groove, to facilitate mutual connection of the bottom plates of the adjacent cavity components.
[0050] The application improves the assembly type prefabricated two-way dense rib cavity floor system construction process, and adopts a construction process in which the bottom concrete of the adjacent cavity components is connected by structural adhesive.
Claims
1. A new DCKQ cavity component for housing construction engineering, characterized in that, It is composed of cavity component (5) and dense ribbed beam (6), cavity component (5) is composed of bottom concrete slab (1), square cavity (2) and top concrete slab (3), square cavity (2) is equal in size to top concrete slab (3), and the size of bottom concrete slab (1) is larger than that of top concrete slab (3), a plurality of first steel bars (4) are embedded on the four sides of top concrete slab (3) respectively; A plurality of second steel bars (7) are arranged on the adjacent two sides of bottom concrete slab (1), and U-shaped grooves (11) matched with second steel bars (7) are arranged on the other two corresponding sides; dense ribbed beam (6) is arranged between two cavity components (5).
2. The new DCKQ cavity component for house building engineering according to claim 1, characterized in that, The steel reinforcement cage embedded in the dense ribbed beam (6) is bundled together with the first steel bars (4), and the cast-in-situ concrete is cast on the embedded steel reinforcement cage.
3. The new DCKQ cavity component for house building engineering according to claim 1, characterized in that, The square cavity (2) is composed of a bottom plate (8), a cover plate (9), a reinforcing rib (10) and a side wall (12); the hollow cavity is composed of a nine-square grid structure by the reinforcing rib (10); the bottom plate (8) is fixedly connected with the bottom concrete slab (1) by a plurality of cement nails; the reinforcing rib (10) is lower than the side wall (12), forming a groove (13) accommodating the cover plate (9) at the top of the square cavity (2), and the cover plate (9) is fixedly connected with the top concrete slab (3) by a plurality of cement nails; the cover plate (9) is placed into the groove (13), and the side wall (12) is fixedly connected with the cover plate (9) by penetrating steel nails.
4. The new DCKQ cavity component for house building engineering according to claim 1, characterized in that, The square cavity (2) is a hollow cavity made of hard material.
5. The new DCKQ cavity component for house building engineering according to claim 1, characterized in that, The square cavity (2) is a closed hollow cavity enclosed by glass fiber reinforced cement.
6. A new DCKQ cavity component for house building engineering according to claim 1, characterized in that, The square cavity (2) is a closed hollow cavity enclosed by high-strength calcium plate.
7. The new DCKQ cavity component for house building engineering according to claim 1, characterized in that, The bottom concrete slab (1) is 100mm wider than the top concrete slab (3) on each side.
8. A new DCKQ cavity component for house building engineering according to claim 1, characterized in that, Before the second steel bar (7) is inserted into the U-shaped groove (11), structural adhesive is injected into the U-shaped groove (11).
9. A new DCKQ cavity unit for housing construction engineering according to claim 1, characterized in that, The side of the bottom concrete slab (1) of the adjacent two cavity components (5) is brushed with structural adhesive.
10. A new DCKQ cavity unit for housing construction works as claimed in claim 1 wherein, The second steel bar (7) is provided with a horizontal rib (14), and the U-shaped groove (11) is provided with a horizontal groove (15) corresponding to the horizontal rib (14).