Ribbed beam cast-in-place structure of dense rib floor system and corresponding building

Abstract

The utility model provides a ribbed beam cast-in-place structure of a dense rib floor system and a building. The ribbed beam cast-in-place structure of the dense rib floor system comprises a plurality of bottom plates, a plurality of ribbed beams, a top plate and a plurality of composite boxes. And the plurality of bottom plates form a plurality of gaps which are arranged at intervals along the transverse direction and the longitudinal direction. The ribbed beams are arranged at the gaps in a one-to-one correspondence mode. The top plate is horizontally arranged at the tops of the ribbed beams, and the ribbed beams, the bottom plates and the top plate define a plurality of containing cavities. And an overlapping box is arranged in each accommodating cavity. Wherein the plurality of ribbed beams comprise a plurality of main ribbed beams and a plurality of secondary ribbed beams; the plurality of main rib beams are divided into two groups, are respectively arranged along the transverse direction and the longitudinal direction and are intersected to form a grid shape with a plurality of square spaces; the width of the secondary ribbed beams is smaller than that of the main ribbed beams, and the multiple secondary ribbed beams are divided into two groups, are arranged in a grid shape in the transverse direction and the longitudinal direction respectively and are located in a square space formed by the multiple main ribbed beams. The building comprises the ribbed beam cast-in-place structure of the dense rib floor system, and the dead weight of the ribbed beam cast-in-place structure of the dense rib floor system is light.

Description

Technical Field

[0001] This utility model relates to the field of floor slab technology, and in particular to a cast-in-place ribbed floor slab structure and a corresponding building. Background Technology

[0002] With the rapid development of my country's national economy, the application of various special structures in building construction is becoming increasingly widespread. Concrete composite box girder floor slab technology is a new type of floor structure. The floor slab is composed of a composite box girder and cast-in-place concrete rib beams, forming an integral structure with a continuous box-shaped cross-section. The composite box girder and rib beams share the load. It has advantages such as prefabricated components being manufactured in the factory, stable construction quality, reduced labor intensity on construction sites, and reduced environmental pollution. It also possesses the good overall integrity of cast-in-place structures. However, existing concrete composite box girder floor slab technologies still have a relatively large self-weight for large spaces.

[0003] Therefore, it is necessary to provide a cast-in-place ribbed floor slab structure and a corresponding building to solve the above-mentioned technical problems. Utility Model Content

[0004] This utility model provides a cast-in-place ribbed floor slab structure and a corresponding building, which can reduce the overall weight of the floor slab while ensuring the structural strength of the floor slab, making it suitable for large spaces.

[0005] The technical solution of this utility model is as follows:

[0006] A cast-in-place ribbed floor slab structure comprising:

[0007] Multiple base plates are arranged at intervals along the horizontal and vertical directions, and the multiple base plates form multiple gaps arranged at intervals along the horizontal and vertical directions;

[0008] Multiple ribs are respectively and correspondingly arranged at the multiple gaps, and the multiple ribs extend vertically upward from the gaps;

[0009] A top plate, horizontally disposed on top of the plurality of ribs, wherein the plurality of ribs, the plurality of bottom plates, and the top plate form a plurality of receiving cavities; and,

[0010] Multiple stacked boxes, each of the aforementioned receiving cavities being provided with the stacked box;

[0011] The plurality of ribs includes a plurality of main ribs and a plurality of secondary ribs; the plurality of main ribs are divided into two groups, which are arranged in the transverse and longitudinal directions respectively and intersect to form a grid with a plurality of square spaces; the width of the secondary ribs is smaller than the width of the main ribs, and the plurality of secondary ribs are divided into two groups, which are arranged in the transverse and longitudinal directions respectively in a grid pattern and are located in the square spaces formed by the plurality of main ribs.

[0012] In the cast-in-place ribbed structure of the closely ribbed floor slab of this utility model, along the same horizontal direction, the distance between two adjacent secondary ribs at the middle position of each square space is smaller than the distance between other two adjacent secondary ribs.

[0013] In the cast-in-place ribbed structure of the densely ribbed floor slab described in this utility model, the composite box is made of fireproof steel wire mesh.

[0014] In the cast-in-place ribbed beam structure of the ribbed floor slab of this utility model, the composite box is provided with a positioning groove; the cast-in-place ribbed beam structure of the ribbed floor slab also includes multiple connectors, each connector including a connecting rod and two positioning columns, the two positioning columns being vertically connected to both ends of the connecting rod and extending in the same direction, and the two positioning columns being inserted into the positioning grooves of two adjacent composite boxes.

[0015] In the cast-in-place ribbed beam structure of the ribbed floor slab of this utility model, each ribbed beam includes two rows of vertically extending steel bars. The two rows of vertical steel bars are arranged parallel to each other along the width direction of the ribbed beam, and the connecting rod is connected to both rows of vertical steel bars.

[0016] In the cast-in-place ribbed beam structure of the ribbed floor slab described in this utility model, the connecting member is formed by bending steel bars.

[0017] In the cast-in-place ribbed beam structure of the ribbed floor slab of this utility model, the positioning groove is set on the top surface of the composite box, and the connecting rod is located in the top plate and connected to the steel bars in the top plate.

[0018] In the cast-in-place ribbed beam structure of the ribbed floor slab of this utility model, the top slab is provided with two layers of steel mesh arranged in parallel along the vertical direction. Each layer of steel mesh is formed by interlacing multiple steel bars extending in the horizontal direction and multiple steel bars extending in the longitudinal direction. Each rib beam includes two rows of vertical steel bars extending in the vertical direction, and both rows of vertical steel bars are connected to the steel mesh at the top.

[0019] Another technical solution of this utility model is:

[0020] A building includes a cast-in-place ribbed structure of the aforementioned ribbed floor slab, and a plurality of support columns, each of the support columns being connected at the bottom of the intersection of the transverse main ribbed beam and the longitudinal main ribbed beam.

[0021] In the building described in this utility model, the vertical projected area of ​​the supporting column is greater than the vertical projected area at the intersection of the transverse main rib beam and the longitudinal main rib beam.

[0022] Compared with the prior art, the advantages of this utility model are as follows: The ribbed floor slab cast-in-place structure and building of this utility model use four main ribs for primary support and multiple secondary ribs for secondary support. The composite box serves as both a template during the casting of the ribs and participates in the overall structural stress. The width of the secondary ribs is smaller than that of the main ribs, which reduces the self-weight of the entire floor slab while ensuring the structural strength, making it suitable for large spaces. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments are briefly introduced below. The drawings described below are only the corresponding drawings of some embodiments of this utility model.

[0024] Figure 1 This is a top view of a portion of the building structure provided in a preferred embodiment of the present invention.

[0025] Figure 2 A cross-sectional structural diagram of the cast-in-place ribbed beam structure of a ribbed floor slab provided in a preferred embodiment of this utility model.

[0026] in,

[0027] 1. Ribbed floor slab with cast-in-place ribbed beams.

[0028] 11. Base plate

[0029] 12. Rib beam, 121. Main rib beam, 122. Secondary rib beam, 123. Vertical reinforcement.

[0030] 13. Top slab; 131. Reinforcing mesh.

[0031] 14. Stacking boxes,

[0032] 15. Connector; 151. Connecting rod; 152. Positioning pin.

[0033] 2. Support column.

[0034] In the diagram, units with similar structures are represented by the same labels. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] The directional terms mentioned in this utility model, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only for reference to the orientation of the accompanying drawings. The directional terms used are for the purpose of explaining and understanding this utility model, and are not intended to limit this utility model.

[0037] The terms "first" and "second" in this utility model are used for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as a restriction on the order of events.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] For large spaces, the self-weight of existing concrete composite box girder floor slabs is still relatively large.

[0040] The following is a preferred embodiment of a cast-in-place ribbed floor slab structure and building provided by this utility model, which can solve the above-mentioned technical problems.

[0041] A preferred embodiment of this utility model provides a building. Please refer to... Figure 1 and Figure 2 The building comprises a ribbed floor slab cast-in-place structure 1 and multiple supporting columns 2. The ribbed floor slab cast-in-place structure 1 includes multiple base slabs 11, multiple rib beams 12, a top slab 13, and multiple composite boxes 14. The multiple base slabs 11 are arranged at intervals along the transverse and longitudinal directions, forming multiple gaps. Multiple rib beams 12 are respectively positioned at the multiple gaps, extending vertically upwards from the gaps. The top slab 13 is horizontally positioned on top of the multiple rib beams 12. The multiple rib beams 12, multiple base slabs 11, and top slab 13 enclose multiple receiving cavities. Each receiving cavity contains a composite box 14.

[0042] The plurality of ribs 12 include multiple main ribs 121 and multiple secondary ribs 122. The multiple main ribs 121 are divided into two groups, arranged in the transverse and longitudinal directions respectively, and intersecting to form a grid with multiple square spaces. Figure 1 The diagram shows four main rib beams 121. The width of the secondary rib beams 122 is smaller than the width of the main rib beams 121, and the multiple secondary rib beams 122 are divided into two groups, arranged in a grid pattern along the transverse and longitudinal directions, respectively, and located in the square space formed by the multiple main rib beams 121.

[0043] Each support column 2 is connected to the bottom of the intersection of the transverse main rib beam 121 and the longitudinal main rib beam 121.

[0044] In the diagram, the x-direction is horizontal, the y-direction is vertical, and the z-direction is vertical.

[0045] The present invention relates to a cast-in-place ribbed floor slab structure 1 and building, which uses four main ribbed beams 121 for primary support and multiple secondary ribbed beams 122 for secondary support. The composite box 14 serves as both a formwork for the casting of the ribbed beams 12 and participates in the overall structural stress. The width of the secondary ribbed beams 122 is smaller than that of the main ribbed beams 121. While ensuring the structural strength of the floor slab, the self-weight of the entire floor slab can be reduced, making it suitable for large spaces.

[0046] Please refer to Figure 1 Along the same horizontal direction, the distance d1 between two adjacent secondary ribs 122 at the middle position of each square space is smaller than the distance d2 between other adjacent secondary ribs 122. The central area between two adjacent main ribs 121 is subjected to greater stress. The above structure can make the secondary ribs 122 more dense in this area, thereby enhancing the structural strength of this area.

[0047] The stacking box 14 is made of fire-resistant steel wire mesh, which can effectively prevent fire. Two or more stacking boxes 14 can be stacked in each receiving cavity to facilitate construction.

[0048] Please refer to Figure 2 The composite box 14 is provided with positioning grooves; the cast-in-place rib beam structure 1 of the closely ribbed floor slab also includes multiple connectors 15, each connector 15 including a connecting rod 151 and two positioning columns 152. The two positioning columns 152 are respectively vertically connected to both ends of the connecting rod 151 and extend in the same direction. The two positioning columns 152 are respectively inserted into the positioning grooves of two adjacent composite boxes 14. By adopting the above structure, the distance between two adjacent composite boxes 14 can be maintained at a set distance, so that the dimensions of the cast-in-place rib beam 12 are accurate.

[0049] Please refer to Figure 2 Each rib 12 includes two rows of vertically extending reinforcing bars 123, which are arranged parallel to each other along the width of the rib 12. A connecting rod 151 is connected to both rows of vertical reinforcing bars 123. This structure ensures that the top spacing between the two vertical reinforcing bars 123 remains at a predetermined distance, guaranteeing that the cast rib 12 meets strength requirements.

[0050] The connector 15 is formed by bending steel bars, which is easy to process and has high structural strength.

[0051] The positioning groove is set on the top surface of the composite box 14, and the connecting rod 151 is located in the top plate 13 and connected to the reinforcing steel in the top plate 13. This ensures that the connecting piece 15 is fixed and stable, preventing displacement during pouring.

[0052] The top slab 13 contains two layers of parallel vertically arranged steel mesh 131. Each layer of steel mesh 131 is formed by interlacing multiple transversely extending steel bars and multiple longitudinally extending steel bars. Each rib beam 12 includes two rows of vertically extending steel bars 123, both of which are connected to the top steel mesh 131. This enhances the structural strength of the top slab 13.

[0053] Please refer to Figure 1 The vertical projected area of ​​support column 2 is larger than the vertical projected area at the intersection of the transverse main rib beam 121 and the longitudinal main rib beam 121. Support column 2 is thicker and has stronger supporting force.

[0054] Construction process of the cast-in-place ribbed beam structure 1 of the preferred embodiment of the ribbed floor slab of this utility model:

[0055] Erect the support frame and formwork, lay the base plate 11 on the formwork, tie the reinforcing bars of the rib beam 12, place the composite box 14, tie the reinforcing bars of the top plate 13, pour concrete to form the rib beam 12 and the top plate 13, and then remove the support frame and formwork.

[0056] This completes the construction process of the cast-in-place ribbed beam structure 1 of the ribbed floor slab in this preferred embodiment.

[0057] This utility model relates to a cast-in-place ribbed floor slab structure and building. It uses four main ribs for primary support and multiple secondary ribs for secondary support. The composite box serves as both a formwork for the ribs during casting and participates in the overall structural stress. The width of the secondary ribs is smaller than that of the main ribs. While ensuring the structural strength of the floor slab, the self-weight of the entire floor slab can be reduced, making it suitable for large spaces.

[0058] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the concept of the technical solution of the present invention, should be included within the scope of protection of the present invention.

Claims

1. A cast-in-place ribbed floor slab structure, characterized in that, include: Multiple base plates are arranged at intervals along the horizontal and vertical directions, and the multiple base plates form multiple gaps arranged at intervals along the horizontal and vertical directions; Multiple ribs are respectively and correspondingly arranged at the multiple gaps, and the multiple ribs extend vertically upward from the gaps; A top plate, horizontally disposed on top of the plurality of ribs, wherein the plurality of ribs, the plurality of bottom plates, and the top plate form a plurality of receiving cavities; and, Multiple stacked boxes, each of the aforementioned receiving cavities being provided with the stacked box; The plurality of ribs includes a plurality of main ribs and a plurality of secondary ribs; the plurality of main ribs are divided into two groups, which are arranged in the transverse and longitudinal directions respectively and intersect to form a grid with a plurality of square spaces; the width of the secondary ribs is smaller than the width of the main ribs, and the plurality of secondary ribs are divided into two groups, which are arranged in the transverse and longitudinal directions respectively in a grid pattern and are located in the square spaces formed by the plurality of main ribs.

2. The cast-in-place ribbed beam structure of the closely ribbed floor slab according to claim 1, characterized in that, Along the same horizontal direction, the distance between two adjacent secondary ribs at the middle position of each of the square spaces is smaller than the distance between other two adjacent secondary ribs.

3. The cast-in-place ribbed beam structure of the closely ribbed floor slab according to claim 1, characterized in that, The stacking box is made of fireproof steel wire mesh.

4. The cast-in-place ribbed beam structure of the closely ribbed floor slab according to claim 1, characterized in that, The composite box is provided with a positioning groove; the cast-in-place rib beam structure of the closely ribbed floor slab also includes multiple connectors, each connector including a connecting rod and two positioning columns. The two positioning columns are respectively vertically connected to the two ends of the connecting rod and extend in the same direction. The two positioning columns are respectively inserted into the positioning grooves of two adjacent composite boxes.

5. The cast-in-place ribbed beam structure of the closely ribbed floor slab according to claim 4, characterized in that, Each of the ribs includes two rows of vertically extending steel bars, which are arranged parallel to each other along the width of the rib. The connecting rod is connected to both rows of vertical steel bars.

6. The cast-in-place ribbed beam structure of the closely ribbed floor slab according to claim 4, characterized in that, The connector is formed by bending steel bars.

7. The cast-in-place ribbed beam structure of the closely ribbed floor slab according to claim 4, characterized in that, The positioning groove is disposed on the top surface of the stacked box, and the connecting rod is located in the top plate and connected to the reinforcing steel bars in the top plate.

8. The cast-in-place ribbed beam structure of the ribbed floor slab according to claim 1, characterized in that, The top slab is provided with two layers of steel mesh arranged in parallel vertical directions. Each layer of steel mesh is formed by interlacing multiple horizontally extending steel bars and multiple longitudinally extending steel bars. Each rib beam includes two rows of vertically extending steel bars, and both rows of vertical steel bars are connected to the steel mesh at the top.

9. A building, characterized in that, It includes a cast-in-place ribbed floor structure as described in any one of claims 1-8, and a plurality of support columns, each of the support columns being connected to the bottom of the intersection of the transverse main ribbed beam and the longitudinal main ribbed beam.

10. The building according to claim 9, characterized in that, The vertical projected area of ​​the support column is greater than the vertical projected area at the intersection of the transverse main rib beam and the longitudinal main rib beam.

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