Steel frame reinforced concrete core tube structure system adopting full dry method connection technology

Abstract

The invention relates to the technical field of building structures, in particular to a steel frame reinforced concrete core tube structure system adopting a full-dry-method connection technology. The structure comprises a core tube, a steel frame, a steel reinforced concrete composite floor, a space grating and a movable partition wall. Wherein the steel frame is arranged on the peripheral side of the core tube; the steel reinforced concrete composite floor is composed of a first steel hollow sandwich plate and a profile steel support. The two ends of the profile steel support are connected with a steel frame and a core tube respectively. The space grating is arranged on the first steel hollow sandwich plate and fixedly connected with the upper layer plate through the pre-connection anchor point, and the movable partition wall is detachably connected with the space grating. By means of the technical scheme, bearing beams, columns and shear wall structures with the bearing function do not need to be arranged in the residence, and the decoration layout of residents on the interior of the residence is not limited by shear walls any more. Meanwhile, a non-bearing partition wall in the residence is designed to be a movable partition wall, so that the residence partition wall can meet the requirement of residents for variable residence space.

Description

Technical Field

[0001] The present application relates to the technical field of building structures, and in particular to a steel frame reinforced concrete core tube structure system using a full dry connection technology. Background Art

[0002] Traditional building structures, such as frame-shear structures, improve the overall stability of buildings, but also limit the flexibility of internal space to a certain extent. Frame-shear structures are mainly composed of frames and shear walls, of which the shear walls bear most of the horizontal loads, while the frames mainly bear vertical loads. This structural form is widely used in high-rise buildings, which not only improves the safety and durability of buildings, but also enables buildings to remain stable under harsh natural conditions.

[0003] In order to deal with the problem of limited internal space, existing solutions mainly include improving the design of shear walls and optimizing the structure of non-load-bearing partition walls. Specifically, common methods include: (1) using lightweight and high-strength materials to make shear walls to reduce the weight of the wall and improve its bearing capacity; (2) using prefabricated components instead of on-site casting to shorten the construction period and reduce construction errors; (3) using modular non-load-bearing partition walls to make them easier to install and dismantle, thereby improving the variability of the space.

[0004] Although the above methods have solved the limitations of traditional building structures to a certain extent, there are still some obvious defects. The first is the immutability of shear walls, which greatly limits the flexible adjustment of indoor space and cannot meet the needs of different users for spatial diversity. Secondly, the transformation of non-load-bearing partition walls is difficult, especially in completed buildings. The removal and reinstallation of partition walls is often time-consuming and labor-intensive, increasing costs. Therefore, how to achieve high variability and flexibility of internal space while ensuring the safety of the building structure has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] This application provides a steel frame reinforced concrete core tube structure system using full dry connection technology, which can achieve no beams, no columns, and no shear walls indoors, thereby effectively expanding the available space and helping to improve the variability and expandability of the space inside the residence. The following technical solutions are adopted: A steel frame reinforced concrete core tube structural system using a full dry connection technology, comprising a core tube, a steel frame, a steel-concrete composite floor, a space grid and a movable partition wall; The steel frame is arranged on the peripheral side of the core tube, and a prefabricated shear wall is arranged on the steel frame as the building exterior wall; the steel concrete floor slab is arranged between the steel frame and the core tube; The steel-concrete composite floor comprises a first steel hollow sandwich plate and a steel support, wherein two ends of the steel support are respectively connected to a steel frame and a core tube; the first steel hollow sandwich plate is fixedly connected to the steel support; The space grille is arranged on the first steel hollow sandwich plate and is fixedly connected to the first steel hollow sandwich plate, and the movable partition wall is detachably connected to the space grille.

[0006] By adopting the above technical solution, the exterior walls of the building are set on the steel frame as shear walls, and the partition walls are set inside the building structure as shear walls, which together with the concrete core tube serve as the load-bearing structure of the building, and a large-span flat plate-shear wall structure is formed by a steel-concrete composite floor slab, thereby achieving beam-free, column-free and shear wall-free indoors.

[0007] At the same time, space grilles and movable partition walls are used. The movable partition walls can be connected with the space grilles to achieve the fixation and lossless splitting of the partition walls. Therefore, the movable partition walls, as partition walls inside the house, can meet the residents' needs for variable residential space and have the advantage of convenient modification and dismantling.

[0008] Preferably, the first steel hollow sandwich plate includes an upper plate, a lower plate and an intermediate support; the lower plate is fixedly connected to the steel support; a pre-connected anchor point is also provided on the first steel hollow sandwich plate, and the space grid is fixedly connected to the upper plate via the pre-connected anchor point.

[0009] By adopting the above technical solution, the first steel hollow sandwich plate is used to fill insulation, sound insulation and other materials between the upper plate and the lower plate, so as to improve the overall performance of the concrete composite floor. At the same time, the first steel hollow sandwich plate can also improve the bearing capacity and bending strength of the composite floor. The installation of the space grid can be facilitated by setting the pre-connected anchor point.

[0010] Preferably, the pre-anchor point structure includes a supporting plate and a fixing rod, wherein the supporting plate is arranged on the upper side of the lower plate, and the intermediate support is passed through the supporting plate; the fixing rod is passed through the upper plate and fixedly connected to the supporting plate, and the upper end of the fixing rod extends to above the upper plate; and the space grille is fixedly connected to the fixing rod.

[0011] By adopting the above technical solution, the bearing plate can effectively improve the bearing capacity of the pre-connected anchor point, so as to improve the strength of the pre-connected anchor point, thereby improving its bearing capacity and stability, which helps to improve the stability of the space grid and further ensure the stability of the movable partition wall.

[0012] Preferably, the steel-concrete composite floor also includes a concrete slab, which is arranged on the upper side of the first steel hollow sandwich plate, and the fixing rod passes through the concrete slab and extends to the upper side of the concrete slab; the space grille is arranged above the concrete slab.

[0013] By adopting the above technical solution, the setting of the concrete slab can provide a better construction foundation for the interior construction of the house, which is convenient for the construction of insulation boards, floor heating or floor tiles.

[0014] Preferably, the pre-connected anchor point further comprises a support plate, which is pre-buried on the upper side of the concrete slab and abuts against the space grid, and the fixing rod passes through the support plate and is fixedly connected to the support plate.

[0015] By adopting the above technical solution, the support plate can provide a relatively stable connection foundation, thereby ensuring the stability of the space grid.

[0016] Preferably, the steel-concrete floor slab also includes a second steel hollow sandwich plate, which is arranged under the steel support and fixedly connected to the steel support, and a hanger is connected to the lower side of the second steel hollow sandwich plate for connecting to the ceiling.

[0017] By adopting the above technical solution, the setting of the second steel hollow sandwich plate can, on the one hand, further improve the overall strength of the steel-concrete composite floor slab, and on the other hand, a space grille can be added under the second steel hollow sandwich plate to be connected to the movable partition wall to facilitate the installation of the movable partition wall.

[0018] Preferably, the first steel hollow sandwich panel and the second steel hollow sandwich panel are both connected to the steel frame and the core tube.

[0019] By adopting the above technical solution, the bearing capacity of the steel-concrete composite floor slab can be effectively enhanced.

[0020] Preferably, the steel support includes a steel frame, surface steel bars, a hollow formwork box and a concrete structural layer, the surface steel bars are arranged on the lower and upper sides of the steel frame, the hollow formwork box is arranged on the inner side of the steel frame, and the concrete structural layer is covered on the outside of the steel frame, the surface steel bars and the hollow formwork box.

[0021] By adopting the above technical solution, the steel frame provides basic bearing capacity. The setting of the hollow mold box can form a cavity inside the steel support, thereby reducing the dead weight and helping to achieve lightweight.

[0022] Preferably, bolts are provided on the steel frame, the intermediate support is tubular, and the bolts are passed through the intermediate support and fixedly connected to the intermediate support.

[0023] By adopting the above technical solution, the bolts can be connected to the middle support as a whole, thereby effectively improving the stability of the steel hollow sandwich plate, while improving the integrity of the steel support and the steel hollow sandwich plate, thereby improving the overall strength of the steel concrete composite floor.

[0024] Preferably, the steel support further comprises fiber cement boards, and the fiber cement boards are arranged on the upper and lower sides of the concrete structure layer.

[0025] By adopting the above technical scheme, the fiber cement board can play a good isolation role on the steel support and the steel hollow sandwich plate, can improve the seismic resistance of the connection between the steel support and the steel hollow sandwich plate, and at the same time has good supporting properties to ensure the overall performance of the steel-concrete composite floor.

[0026] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The steel frame reinforced concrete core tube structure system with full dry connection technology realizes the indoor beam-free, column-free and shear wall-free design, avoiding the space limitation caused by the shear wall in the house. In addition, the space grid and movable partition wall are used to significantly improve the utilization rate and variability of the internal space of the house, meeting the user's demand for diversified space layout; 2. Design the non-load-bearing partition walls inside the house as movable partition walls, and use space grilles to make the movable partition walls easy to disassemble and assemble, so as to ensure the airtightness of the room while giving the partition walls flexibility, so that the residential partition walls can meet the residents' demand for variable residential space; 3. The setting of steel-concrete composite floor slab not only enhances the overall bearing capacity and bending strength of the building structure, but also realizes the stable connection of movable partition walls through the design of pre-connected anchor points and space grids, thereby improving the flexible adjustment capacity of the internal space of the residence. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a steel frame-reinforced concrete core tube building structure with full dry connection in an embodiment of the present application; Figure 2 It is a cross-sectional view of a steel-concrete composite floor slab in an embodiment of the present application.

[0028] Markings in the attached drawings: 1. core tube; 2. steel frame; 3. steel-concrete composite floor; 31. steel support; 311. steel skeleton; 312. surface reinforcement; 313. hollow formwork box; 314. concrete structure layer; 315. bolts; 316. fiber cement board; 32. first steel hollow sandwich panel; 321. upper panel; 322. lower panel; 323. middle support; 33. pre-connected anchor point; 331. load-bearing plate; 332. fixing rod; 333. support plate; 34. second steel hollow sandwich panel; 4. space grid. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-2 The present invention is described in further detail.

[0030] The inventor of the present application has found that people are paying more and more attention to the efficiency of using the interior space of a building and the comfort of using the building space. The structural form of modern residential buildings is usually a frame-shear structure, which is a structure in which a certain number of shear walls are arranged in a frame structure, and the frame and the shear wall are combined together.

[0031] Since the frame-shear structure will arrange multiple shear walls and non-load-bearing partition walls inside the house, the shear walls are fixed and immutable walls that need to bear loads, and the non-load-bearing partition walls are usually fixed brick walls. Therefore, both shear walls and non-load-bearing partition walls will restrict the internal space of the house, making the internal space not variable, causing many restrictions on the decoration layout, and it is difficult to meet the diverse usage needs of users.

[0032] To this end, this application mainly adopts a steel frame reinforced concrete core tube structure system with full dry connection technology, achieving no beams, no columns, and no shear walls indoors, thereby effectively expanding the available space and improving the variability and expandability of the space within the residence. The following is a further detailed description of this application.

[0033] The steel frame reinforced concrete core tube structure system using the full dry connection technology provided in the embodiment of the present application includes a core tube 1, a steel frame 2, a steel-concrete composite floor 3, a space grille 4 and a movable partition wall. Specifically, the steel frame 2 is arranged on the peripheral side of the core tube 1, and a prefabricated shear wall is arranged on the steel frame 2; the steel-concrete floor is arranged between the steel frame 2 and the core tube 1; the steel-concrete composite floor 3 includes a first steel hollow sandwich plate 32 and a steel support 31, and the two ends of the steel support 31 are respectively connected to the steel frame 2 and the core tube 1; the first steel hollow sandwich plate 32 is fixedly connected to the steel support 31; the space grille 4 is arranged on the first steel hollow sandwich plate 32 and is fixedly connected to the first steel hollow sandwich plate 32, and the movable partition wall is detachably connected to the space grille 4.

[0034] The steel-concrete composite floor 3 is assembled and constructed in a prefabricated manner, and is hoisted as a whole at the construction site. The steel frame 2 is provided with a building exterior wall, and the building exterior wall and the core tube 1 wall both serve as shear walls to bear the load. The building exterior wall and the core tube 1 are both prefabricated unit concrete walls, and are assembled and constructed at the construction site using dry connection (bolt connection or welding, etc.), and the building exterior wall is connected to the steel frame 2, the steel-concrete composite floor 3 is connected to the building exterior wall and the core tube 1, and the household wall is connected to the building exterior wall and the steel-concrete composite floor 3. Thus, the construction of the building structure is completed.

[0035] By bearing the load through the building exterior walls, core tube 1, partition walls and other residential exterior walls, there is no need to set up load-bearing beams, columns and shear wall structures inside the house. The interior of the house is a large-span beamless and column-free space. The residents' interior decoration layout is no longer restricted by shear walls, and the room span size can also be divided according to the needs of the residents. At the same time, the non-load-bearing partition walls inside the house are designed as movable partition walls, which give the partition walls flexibility while ensuring the airtightness of the room, so that the residential partition walls can meet the residents' needs for variable residential space.

[0036] Specifically, the first steel hollow sandwich plate 32 includes an upper plate 321, a lower plate 322 and an intermediate support 323. The lower plate 322 is fixedly connected to the steel support 31, which can be achieved by welding or bolting. A pre-connection anchor point 33 is also provided on the first steel hollow sandwich plate 32, and the space grid 4 is fixedly connected to the upper plate 321 through the pre-connection anchor point 33. The pre-connection anchor point 33 can be made of metal material, such as steel or aluminum alloy, or a high-strength composite material.

[0037] The pre-connection anchor point 33 structure includes a bearing plate 331 and a fixing rod 332. The bearing plate 331 is arranged on the upper side of the lower plate 322 and is welded or bolted to the lower plate 322. The intermediate support 323 is passed through the bearing plate 331 to improve the integrity of the pre-connection anchor point 33 and the first steel hollow sandwich plate 32. The fixing rod 332 is passed through the upper plate 321 and is fixedly connected to the bearing plate 331. The upper end of the fixing rod 332 extends to the upper side of the upper plate 321. The space grid 4 is bolted to the fixing rod 332.

[0038] The carrier plate 331 can be round or square, and its thickness and diameter can be selected according to actual needs to ensure sufficient bearing capacity and stability. The fixing rod 332 can be cylindrical or rectangular, and its length and diameter also need to be designed according to actual needs to ensure the strength and stability of the fixing rod 332.

[0039] In addition, the steel-concrete composite floor 3 also includes a concrete slab, which is arranged on the upper side of the first steel hollow sandwich plate 32, and the fixing rod 332 passes through the concrete slab and extends to the upper side of the concrete slab; the space grid 4 is arranged above the concrete slab. The thickness and strength of the concrete slab can be adjusted according to actual needs to adapt to different construction conditions and use requirements. The surface of the concrete slab can be polished to improve the flatness and aesthetics.

[0040] The pre-connected anchor point 33 also includes a support plate 333, which is pre-buried on the upper side of the concrete slab and docked with the space grid 4, and the fixing rod 332 passes through the support plate 333 and is fixedly connected to the support plate 333. The support plate 333 can be made of metal material or high-strength composite material, and its shape and size can be designed according to actual needs to ensure sufficient support force and stability.

[0041] The first steel hollow sandwich panel 32 and the second steel hollow sandwich panel 34 are both connected to the steel frame 2 and the core tube 1 to enhance the bearing capacity of the steel-concrete composite floor 3. The second steel hollow sandwich panel 34 is arranged on the lower layer of the steel support 31 and is fixedly connected to the steel support 31. A hanger is connected to the lower side of the second steel hollow sandwich panel 34 for connecting the ceiling. The structure and material of the second steel hollow sandwich panel 34 can be the same as those of the first steel hollow sandwich panel 32, and can also be appropriately adjusted according to actual needs. The hanger can be made of high-strength steel or aluminum alloy, and its length and diameter can be designed according to actual needs to ensure the strength and stability of the hanger.

[0042] The steel support 31 includes a steel frame 311, surface steel bars 312, a hollow form 313 and a concrete structure layer 314. The surface steel bars 312 are arranged on the upper and lower sides of the steel frame 311, the hollow form 313 is arranged inside the steel frame 311, and the concrete structure layer 314 is covered on the outside of the steel frame 311, the surface steel bars 312 and the hollow form 313. The steel frame 311 can be made of high-strength steel, and its cross-sectional shape can be I-shaped, H-shaped or other suitable shapes to ensure the strength and stability of the steel frame 311.

[0043] The surface layer steel bars 312 may be in the form of steel mesh or steel bar bundles, and their specifications and spacing may be designed according to actual needs to ensure the strength and stability of the surface layer steel bars 312. The hollow formwork box 313 may be made of plastic or metal material, and its shape and size may be designed according to actual needs to ensure the strength and stability of the hollow formwork box 313. The concrete structure layer 314 may be made of ordinary concrete or high-performance concrete, and its thickness and strength may be adjusted according to actual needs to adapt to different construction conditions and usage requirements.

[0044] The steel frame 311 is provided with bolts 315, and the intermediate support 323 is tubular. The bolts 315 are inserted into the intermediate support 323 and are fixedly connected to the intermediate support 323. The bolts 315 can be made of high-strength steel, and the diameter and length thereof can be designed according to actual needs to ensure the strength and stability of the bolts 315. The intermediate support 323 can be made of steel pipes or aluminum pipes, and the diameter and wall thickness thereof can be designed according to actual needs to ensure the strength and stability of the intermediate support 323. By providing the bolts 315 and the intermediate support 323, the overall strength and stability of the steel support 31 can be effectively improved, thereby improving the overall performance of the steel-concrete composite floor slab 3.

[0045] The steel support 31 also includes a fiber cement board 316, which is arranged on the upper and lower sides of the concrete structure layer 314. The fiber cement board 316 can be made of high-strength fiber reinforced cement, and its thickness and strength can be adjusted according to actual needs to adapt to different construction conditions and usage requirements. The fiber cement board 316 can effectively isolate the steel support 31 and the steel hollow sandwich plate, improve the seismic performance and support performance of both, and thus improve the overall performance of the steel-concrete composite floor 3.

[0046] Thus, by adopting the steel frame reinforced concrete core tube structure system with full dry connection technology, it is realized that there are no beams, no columns, and no shear walls indoors, thereby effectively expanding the available space and improving the variability and expandability of the space inside the residence. The exterior wall of the building is set on the steel frame 2 as a shear wall, and the partition wall is set inside the building structure as a shear wall, which together with the concrete core tube 1 serves as the load-bearing structure of the building, and a large-span flat plate-shear wall structure is formed by the steel-concrete composite floor 3, thereby realizing no beams, no columns, and no shear walls indoors. At the same time, the space grille 4 and the movable partition wall are adopted, and the movable partition wall can be connected with the space grille 4 to realize the fixation and lossless splitting of the partition wall. Therefore, the movable partition wall is used as a partition wall inside the residence, which can meet the residents' demand for the variability of the residential space and has the advantage of convenient modification and disassembly.

[0047] The first steel hollow sandwich panel 32 and the second steel hollow sandwich panel 34 may have heat insulation layers, sound insulation layers, fireproof layers, etc. added in their hollow interlayers to enhance the thermal insulation, sound insulation and fireproof performance of the building.

[0048] The space grille 4 adopts a light steel frame or an aluminum alloy frame, and the movable partition wall can be connected to the space grille 4 by a detachable connection method such as bolt connection, so as to ensure that the movable partition wall has good easy modification and disassembly performance.

[0049] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel frame reinforced concrete core tube structure system using full dry connection technology, characterized in that: It comprises a core tube (1), a steel frame (2), a steel-concrete composite floor slab (3), a space grid (4) and a movable partition wall; The steel frame (2) is arranged on the peripheral side of the core tube (1), and a prefabricated shear wall is arranged on the steel frame (2) as an external wall of the building; the steel concrete floor slab is arranged between the steel frame (2) and the core tube (1); The steel-concrete composite floor slab (3) comprises a first steel hollow sandwich plate (32) and a steel support (31), wherein two ends of the steel support (31) are respectively connected to the steel frame (2) and the core tube (1); the first steel hollow sandwich plate (32) is fixedly connected to the steel support (31); The space grille (4) is arranged on the first steel hollow sandwich plate (32) and is fixedly connected to the first steel hollow sandwich plate (32), and the movable partition wall is detachably connected to the space grille (4).

2. The steel frame reinforced concrete core tube structure system using the full dry connection technology according to claim 1 is characterized in that: The first steel hollow sandwich plate (32) comprises an upper plate (321), a lower plate (322) and an intermediate support (323); the lower plate (322) is fixedly connected to the steel support (31); a pre-connected anchor point (33) is also provided on the first steel hollow sandwich plate (32), and the space grid (4) is fixedly connected to the upper plate (321) via the pre-connected anchor point (33).

3. The steel frame reinforced concrete core tube structure system using the full dry connection technology according to claim 2 is characterized in that: The pre-connected anchor point (33) structure comprises a bearing plate (331) and a fixing rod (332); the bearing plate (331) is arranged on the upper side of the lower plate (322); the intermediate support (323) is passed through the bearing plate (331); the fixing rod (332) is passed through the upper plate (321) and is fixedly connected to the bearing plate (331); the upper end of the fixing rod (332) extends to the upper side of the upper plate (321); and the space grille (4) is fixedly connected to the fixing rod (332).

4. The steel frame reinforced concrete core tube structure system using the full dry connection technology according to claim 3 is characterized in that: The steel-concrete composite floor (3) also includes a concrete slab, which is arranged on the upper side of the first steel hollow sandwich slab (32); the fixing rod (332) passes through the concrete slab and extends to the upper side of the concrete slab; and the space grid (4) is arranged above the concrete slab.

5. The steel frame reinforced concrete core tube structure system using the full dry connection technology according to claim 4 is characterized in that: The pre-connected anchor point (33) further comprises a support plate (333), wherein the support plate (333) is pre-buried on the upper side of the concrete slab and abuts against the space grid (4), and the fixing rod (332) passes through the support plate (333) and is fixedly connected to the support plate (333).

6. The steel frame reinforced concrete core tube structure system using the full dry connection technology according to claim 2 is characterized in that: The steel-concrete floor slab further comprises a second steel hollow sandwich plate (34), wherein the second steel hollow sandwich plate (34) is arranged at the lower layer of the steel support (31) and is fixedly connected to the steel support (31), and a suspension rod is connected to the lower side of the second steel hollow sandwich plate (34) for connecting to a ceiling.

7. The steel frame reinforced concrete core tube structure system using the full dry connection technology according to claim 6 is characterized in that: The first steel hollow sandwich plate (32) and the second steel hollow sandwich plate (34) are both connected to the steel frame (2) and the core tube (1).

8. The steel frame reinforced concrete core tube structure system using the full dry connection technology according to claim 2 is characterized in that: The steel support (31) comprises a steel frame (311), surface steel bars (312), a hollow formwork box (313) and a concrete structure layer (314); the surface steel bars (312) are arranged on the upper and lower sides of the steel frame (311); the hollow formwork box (313) is arranged on the inner side of the steel frame (311); and the concrete structure layer (314) is coated on the outside of the steel frame (311), the surface steel bars (312) and the hollow formwork box (313).

9. The steel frame reinforced concrete core tube structure system using the full dry connection technology according to claim 8 is characterized in that: The steel frame (311) is provided with bolts (315), the intermediate support (323) is tubular, and the bolts (315) are inserted into the intermediate support (323) and fixedly connected to the intermediate support (323).

10. The steel frame reinforced concrete core tube structure system using the full dry connection technology according to claim 8 is characterized in that: The profiled steel support (31) further comprises a fiber cement board (316), wherein the fiber cement board (316) is arranged on the upper side and the lower side of the concrete structure layer (314).

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