Fabricated industrial building structure support-free system

Abstract

The utility model provides an assembly type industrial building structure support-free system, which comprises a steel pipe concrete column, a main beam, a secondary beam and a prefabricated floor slab, the steel pipe concrete column comprises a steel pipe column, a cavity and a plurality of connecting frames, the cavity is arranged in the steel pipe column, and the plurality of connecting frames are arranged on the periphery of the steel pipe column; the main beams are prefabricated prestressed concrete main beams, connecting steel plates are arranged at the bottoms of the main beams, a plurality of connecting grooves are formed in the upper ends of the main beams, and the multiple main beams are connected with the multiple connecting frames of the concrete filled steel tubular column through the connecting steel plates to form a main frame. The secondary beams are prefabricated prestressed concrete secondary beams, connecting blocks are arranged at the two ends of each secondary beam, and the connecting blocks are connected with the connecting grooves so that the secondary beams can be perpendicularly connected between the two main beams. The prefabricated floor slab is connected to the frame defined by the main beams and the secondary beams or the frame defined by the concrete filled steel tubular columns, the main beams and the secondary beams.

Description

Technical Field

[0001] The present invention relates to the field of building technology, in particular to an assembled industrial building structure support-free system, which can be widely used in industrial buildings and other types of buildings. Background Art

[0002] In recent years, with increasing demands for environmental protection and energy conservation in the construction industry, coupled with rising labor costs, prefabricated buildings have garnered increasing attention. Traditional concrete construction, due to the wet concrete pouring process and the resulting sludge flow, creates a harsh working environment for workers. Due to the limited on-site environment, the construction quality and maintenance of concrete components are difficult to guarantee.

[0003] Industrial buildings are characterized by heavy loads and wide column spacing. Existing concrete building construction processes mostly rely on traditional full-height scaffolding. This creates dense vertical supports within the site, creating narrow passageways and hindering access for construction personnel and the transportation of materials. Furthermore, scaffolding lacks standardized standards and is installed on-site, leaving quality entirely up to the workers on-site. This poses significant safety risks. After pouring, the scaffolding cannot be completely removed until the concrete reaches the required quality, resulting in a long turnover cycle and low economic efficiency. Existing prefabricated concrete buildings often utilize only prefabricated horizontal components, with relatively few projects employing both prefabricated vertical and horizontal components. This results in a generally low assembly rate. Prefabricated vertical components, such as precast concrete columns, are often heavy, making transportation and on-site hoisting difficult. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a support-free system for assembled industrial building structures, which solves the problems of low assembly rate, heavy weight, and difficulty in transportation and on-site lifting of existing assembled concrete buildings.

[0005] In order to achieve the above purpose, the technical solution implemented by the present utility model is as follows:

[0006] A support-free system for an assembled industrial building structure includes steel tube concrete columns, main beams, secondary beams and precast floor slabs. The steel tube concrete columns include steel tube columns, cavities and multiple connecting frames, the cavities are arranged in the steel tube columns, and the multiple connecting frames are arranged on the periphery of the steel tube columns; the main beams are precast prestressed concrete main beams, with connecting steel plates provided at the bottom and multiple connecting grooves provided at the upper end, and multiple main beams are connected to the multiple connecting frames of the steel tube concrete columns through the connecting steel plates to form a main frame; the secondary beams are precast prestressed concrete secondary beams, with connecting blocks provided at both ends, and the connecting blocks are connected to the connecting grooves so that the secondary beams are vertically connected between the two main beams; the precast floor slabs are connected to the frame formed by the main beams and the secondary beams or between the frame formed by the steel tube concrete columns, the main beams and the secondary beams.

[0007] The steel pipe column is provided with an opening at the connecting frame, and the connecting frame is communicated with the cavity through the opening.

[0008] The opening is a vertical rectangular opening, including two opposite long sides and two opposite short sides; the connecting frame includes a bottom plate, a first side plate and a second side plate, the first side plate and the second side plate are respectively vertically connected to the two sides of the bottom plate; the other side of the bottom plate is connected to the short side of the opening at the bottom, and the first side plate and the second side plate are respectively vertically connected to the two long sides of the opening.

[0009] The first side panel and the second side panel have the same structure, and both include a first long side, a second long side, a first short side, and a second short side. The first long side is perpendicularly connected to the first short side and the second short side. The length of the first short side is less than the length of the second short side. The second long side is connected to the first short side and the second short side and are not perpendicular to each other. The first long side is connected to one of the long sides of the opening, and the second short side is connected to the bottom plate.

[0010] The connecting frame is inserted into the cavity through the opening and protrudes from the interior of the cavity.

[0011] The connecting steel plates protrude from both ends of the bottom of the main beam, and the connecting steel plates are connected to the bottom plate of the connecting frame.

[0012] The connecting block is formed by extending the upper part of the secondary beam.

[0013] Hook-shaped steel bars are pre-embedded at the top of the main beam and the secondary beam, steel bars protruding from the edges are pre-embedded inside the prefabricated floor slab, and the steel bars of the prefabricated floor slab are connected to the hook-shaped steel bars of the main beam and the secondary beam.

[0014] The precast floor slab includes a precast concrete slab, a plurality of first precast ribs and at least one second precast rib, wherein: the plurality of first precast ribs are connected to the precast concrete slab in parallel with each other; the at least one second precast rib is arranged in a cross shape with each of the first precast ribs and is connected to the precast concrete slab.

[0015] The support-free system of the assembled industrial building structure is a multi-layer design, and the steel tube concrete columns of two adjacent layers are connected to each other.

[0016] From the above scheme, it can be seen that the advantages of the present invention are:

[0017] By providing a support-free system of steel tube concrete columns, precast prestressed concrete main beams, precast prestressed concrete secondary beams and precast floor slabs, the application ratio of precast components can be increased, the assembly accuracy and efficiency of components can be improved, the construction period and manpower consumption can be saved, the project quality and structural stability can be guaranteed, and the construction efficiency and project quality can be greatly improved; after the cavity is set in the steel tube column, the weight is light and it is easy to transport and hoist.

[0018] The precast prestressed concrete main beam and the precast prestressed concrete secondary beam are connected by connecting grooves and connecting blocks, which realizes large span without support, reduces the cost of support materials and labor costs, and has a stable connection, which can be used in industrial buildings with large column spacing.

[0019] The arrangement of the first precast rib and the second precast rib improves the rigidity of the precast concrete slab without changing its thickness, increases the bearing capacity of the precast concrete slab, saves the use of steel, and enables the precast concrete slab to be suitable for buildings with large spans and high bearing capacity requirements; the first precast rib and the second precast rib are arranged perpendicularly, which improves the stability and seismic resistance of the overall structure of the precast floor slab and optimizes the load transfer path. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the support-free system of the prefabricated industrial building structure;

[0021] Figure 2 It is the structural diagram of steel tube concrete column;

[0022] Figure 3 This is a partial enlarged view of the support-free system of the prefabricated industrial building structure;

[0023] Figure 4 This is a structural diagram of the prefabricated prestressed concrete main beam;

[0024] Figure 5 This is a structural diagram of a precast prestressed concrete secondary beam;

[0025] Figure 6 This is a structural diagram of the prefabricated floor;

[0026] Wherein, the reference numerals:

[0027] 1-Concrete-filled steel tube columns;

[0028] 11-Steel pipe column;

[0029] 12-cavity;

[0030] 13-connecting frame;

[0031] 130-base plate;

[0032] 131- first side panel;

[0033] 1310-first long side;

[0034] 1311-second longest side;

[0035] 1312-first short side;

[0036] 1313-second short side;

[0037] 132- second side panel;

[0038] 14- opening;

[0039] 140-short side;

[0040] 2- Prefabricated prestressed concrete main beam;

[0041] 20-hook steel bar;

[0042] 21-Connecting steel plate;

[0043] 22-connection slot;

[0044] 3- Precast prestressed concrete secondary beams;

[0045] 30-hook-shaped steel bars;

[0046] 31-connection block;

[0047] 4- Prefabricated floor slabs;

[0048] 40-Opening

[0049] 41- Precast concrete slabs;

[0050] 42-first prefabricated rib;

[0051] 43-Second precast rib. DETAILED DESCRIPTION

[0052] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the claims attached to the present invention.

[0053] References in the specification to "some embodiments," "other embodiments," etc., indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment must include these specific features, structures, or characteristics. Furthermore, such references do not necessarily refer to the same embodiment. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, whether or not explicitly described, it is understood that incorporating such features, structures, or characteristics into other embodiments is within the knowledge of those skilled in the art.

[0054] Certain words are used in the specification and subsequent claims to refer to specific components or parts. It should be understood by those skilled in the art that technical users or manufacturers may refer to the same component or part with different nouns or terms. This specification and claims do not distinguish components or parts based on differences in name, but rather on differences in the functions of the components or parts. The words "include" and "comprising" mentioned throughout the specification and claims are open-ended terms and should be interpreted as "including but not limited to". In addition, the word "connect" herein includes any direct and indirect electrical connection means. Indirect electrical connection means include connection through other devices.

[0055] It should be noted that, in the description of the present invention, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and "approximately", or "approximately", "substantially", "left and right" and the like to indicate directions or positional relationships or parameters are all based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description content, and do not indicate or imply that the device or element referred to must have a specific direction, specific size or be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0056] Figure 1 This is a schematic diagram of the overall structure of an assembled industrial building structure support-free system provided in an embodiment of the present invention. The system is a structural system that achieves a high assembly rate, a large span, and is support-free by adopting a combination of steel tube concrete columns 1 + precast prestressed concrete main beams 2 + precast prestressed concrete secondary beams 3 + precast floor slabs 4.

[0057] As attached Figure 2 As shown, the steel tube concrete column 1 includes a steel tube column 11, a cavity 12, a connecting frame 13 and cast-in-place concrete. The steel tube column 11 is prefabricated in a factory. For example, the steel tube column 11 is a prefabricated thin-walled hollow steel column. The hollow inside the steel tube column 11 is the cavity 12. A plurality of connecting frames 13 are arranged on the periphery of the steel tube column 11. The connecting frames 13 are used to connect the prefabricated prestressed concrete main beam 2.

[0058] In some embodiments, the connecting bracket 13 communicates with the cavity 12, allowing the precast prestressed concrete main beam 2 to be inserted into the cavity 12 and connected to the steel tube concrete column 1. Specifically, the steel tube column 11 is provided with an opening 14 at the connecting bracket 13. The connecting bracket 13 communicates with the cavity 12 through the opening 14, and the precast prestressed concrete main beam 2 is inserted into the cavity 12 through the opening 14.

[0059] In some embodiments, the opening 14 is a vertical rectangular opening having two opposing long sides and two opposing short sides. The connecting frame 13 includes a bottom plate 130, a first side plate 131, and a second side plate 132. The first side plate 131 and the second side plate 132 are respectively perpendicularly connected to the two sides of the bottom plate 130. The other side of the bottom plate 130 is connected to the short side 140 at the bottom of the opening 14, and the first side plate 131 and the second side plate 132 are respectively perpendicularly connected to the two long sides of the opening 14.

[0060] Preferably, the first side panel 131 and the second side panel 132 have the same structure. The following description will take the first side panel 131 as an example. The first side panel 131 includes a first long side 1310, a second long side 1311, a first short side 1312, and a second short side 1313. The first long side 1310 is perpendicularly connected to the first short side 1312 and the second short side 1313. The length of the first short side 1312 is less than the length of the second short side 1313. The second long side 1311 is connected to the first short side 1312 and the second short side 1313 and is not perpendicular to each other. The first long side 1310 and the second long side 1311 are different in length, and the length of the first long side 1310 is less than the length of the second long side 1311. The first long side 1310 is connected to one of the long sides of the opening 14, and the second short side 1313 is connected to the bottom panel 130. The structure and connection method of the second side panel 132 are the same as those of the first side panel 131 and will not be repeated here.

[0061] In some other embodiments, the connecting frame 13 is inserted into the cavity 12 through the opening 14 and protrudes from the interior of the cavity 12 .

[0062] In actual operation, after transporting the steel pipe column 11 to the construction site, it is hoisted and placed perpendicular to the ground. After connecting the precast prestressed concrete main beam 2 to the connecting frame 13, the beam top reinforcement is laid on site, anchored into the cavity 12 through the connecting frame 13, and then concrete is poured in situ, thus connecting the precast prestressed concrete main beam 2 to the steel pipe concrete column 1. The steel pipe concrete column 1 effectively increases the application rate of structural precast components and facilitates transportation and construction. Compared with concrete columns, the steel pipe concrete column 1 is light in weight and has high rigidity, making it easy to transport and hoist.

[0063] like Figure 3-Figure 5As shown, a precast prestressed concrete main beam 2 is arranged between the two steel tube concrete columns 1, and a precast prestressed concrete secondary beam 3 is arranged between the precast prestressed concrete main beams 2. The main parts of the precast prestressed concrete main beam 2 and the precast prestressed concrete secondary beam 3 are prefabricated in a concrete factory and then transported to the construction site for installation.

[0064] Connecting steel plates 21 are provided at both ends of the bottom of the precast prestressed concrete main beam 2. The shape of the connecting steel plates 21 matches the connecting frame 13. The precast prestressed concrete main beam 2 is connected to the steel tube concrete column 1 by connecting the connecting steel plates 21 and the connecting frame 13. For example, the connecting steel plates 21 are welded to the connecting frame 13, and the top of the precast prestressed concrete main beam 2 is connected by laying the beam top reinforcement and anchoring it into the cavity 12 and then casting concrete.

[0065] like Figure 4-Figure 5 As shown, the precast prestressed concrete main beam 2 is also provided with a plurality of connection grooves 22 at intervals, and connection blocks 31 are provided at both ends of the precast prestressed concrete secondary beam 3. Preferably, the connection blocks 31 are formed by extending from the upper part of the precast prestressed concrete secondary beam 3. The shape of the connection groove 22 corresponds to the connection block 31. After the connection groove 22 and the connection block 31 are connected, concrete is poured to fix them, thereby connecting the precast prestressed concrete main beam 2 and the precast prestressed concrete secondary beam 3. Figure 3 shown.

[0066] The main parts of the precast prestressed concrete main beam 2 and the precast prestressed concrete secondary beam 3 are all prefabricated in a concrete factory. Compared with traditional concrete beams, they are light in weight, do not require formwork, and have a large span. The arrangement of the precast prestressed concrete main beam 2 and the precast prestressed concrete secondary beam 3 can achieve the effect of large span without support, reduce the cost of supporting materials and labor costs, and shorten the construction period. The precast prestressed concrete main beam 2 and the precast prestressed concrete secondary beam 3 are prefabricated in the factory, which increases the application ratio of prefabricated components and improves the installation efficiency and installation accuracy. The structures of the precast prestressed concrete main beam 2 and the precast prestressed concrete secondary beam 3 are consistent and stable, which is conducive to ensuring the quality of the project and saving the construction period. They can be applied to industrial buildings with high span requirements and difficult formwork (industrial buildings usually have large floor heights and require high formwork).

[0067] The precast prestressed concrete main beam 2 and the precast prestressed concrete secondary beam 3 are connected by the connecting groove 21 and the connecting block 31, which realizes large span without support, reduces the cost of support materials and labor costs, and has a stable connection, which can be suitable for industrial buildings with large column spacing; the connecting groove 21 of the precast prestressed concrete main beam 2 and the connecting block 31 of the precast prestressed concrete secondary beam 3 are connected and then poured with concrete, which improves the consistency and stability of the connection between the precast prestressed concrete main beam 2 and the precast prestressed concrete secondary beam 3, and increases the safety and stability of the building structure.

[0068] The precast floor slab 4 is connected to the frame formed by the precast prestressed concrete main beam 2 and the precast prestressed concrete secondary beam 3 or between the frame formed by the steel tube concrete column 1, the precast prestressed concrete main beam 2 and the precast prestressed concrete secondary beam 3. The precast floor slab 4 is precast in the factory. After the precast floor slab 4 is connected with the precast prestressed concrete main beam 2 and the precast prestressed concrete secondary beam 3, a concrete layer is poured to form the floor structure of the building, thereby forming a steel tube concrete column + prestressed beam + precast floor slab support-free system. Specifically, hook-shaped steel bars 20 and hook-shaped steel bars 30 are pre-embedded at the top of the precast prestressed concrete main beam 2 and the precast prestressed concrete secondary beam 3, respectively. Steel bars protruding from the edge of the precast floor slab 4 are pre-embedded inside (not shown in the figure). The steel bars of the precast floor slab 4 are connected to the hook-shaped steel bars 20 and the hook-shaped steel bars 30, for example, by tying. After tying, concrete is poured to fix them, such as Figure 1 The lower and middle structures show a flush concrete surface. The precast floor slabs 4 are factory-fabricated, improving assembly accuracy, effectively saving construction time, avoiding chaos on the construction site, and increasing the utilization rate of precast components.

[0069] Preferably, the prefabricated floor slab 4 is provided with an opening 40 at the connection with the steel tube concrete column 1 , and the opening 40 is engaged with the steel tube concrete column 1 .

[0070] In some embodiments, such as Figure 6 As shown, the precast floor slab 4 includes a precast concrete slab 41, a plurality of first precast ribs 42, and at least one second precast rib 43. The plurality of first precast ribs 42 are connected to the precast concrete slab 41 in parallel. The first precast ribs 42 and the second precast ribs 43 are arranged perpendicular to each other, that is, the second precast ribs 43 are arranged in a cross shape with each first precast rib 42 and are connected to the precast concrete slab 41. There is at least one second precast rib 42, or multiple second precast ribs 42, and each second precast rib 42 is perpendicularly connected to the first precast rib 42.

[0071] The arrangement of the first and second precast ribs 42, 43 increases the rigidity and load-bearing capacity of the precast concrete slab 41 without changing its thickness, saving steel and making it suitable for use in buildings with larger spans and higher load-bearing requirements. The perpendicular arrangement of the first and second precast ribs 42, 43 enhances the overall structural stability and seismic resistance of the precast floor slab 4 and optimizes the load transfer path.

[0072] In some embodiments, the support-free system of the prefabricated industrial building structure is a multi-layer design. The present invention takes two layers as an example. The steel tube concrete columns 1 of the two adjacent layers are connected to each other, and the connection method is, for example, one of welding connection, flange connection, bolt connection, grouting sleeve connection, mechanical connection, etc. or any combination thereof.

[0073] To sum up, the utility model can increase the application ratio of prefabricated components, improve the assembly accuracy and efficiency of components, save construction time and manpower consumption, facilitate the guarantee of project quality and structural stability, and greatly improve construction efficiency and project quality through the steel tube concrete column + prestressed beam + prefabricated floor support-free system.

[0074] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which fall within the scope of protection of the present invention.

Claims

1. A prefabricated industrial building structure without support system, comprising steel tube concrete columns, main beams, secondary beams and prefabricated floor slabs, characterized by: The steel tube concrete column includes a steel tube column, a cavity and a plurality of connecting frames, wherein the cavity is arranged in the steel tube column and the plurality of connecting frames are arranged on the periphery of the steel tube column; The main beam is a prefabricated prestressed concrete main beam, with a connecting steel plate at the bottom and a plurality of connecting grooves at the upper end. The plurality of main beams are connected to the plurality of connecting frames of the plurality of steel tube concrete columns through the connecting steel plates to form a main frame; The secondary beam is a prefabricated prestressed concrete secondary beam, with connecting blocks provided at both ends, and the connecting blocks are connected to the connecting grooves so that the secondary beam is vertically connected between the two main beams; The prefabricated floor slab is connected between a frame formed by the main beam and the secondary beam or a frame formed by the steel tube concrete column, the main beam and the secondary beam.

2. The prefabricated industrial building structure support-free system according to claim 1, characterized in that: The steel pipe column is provided with an opening at the connecting frame, and the connecting frame is communicated with the cavity through the opening.

3. The prefabricated industrial building structure support-free system according to claim 2, characterized in that: The opening is a vertical rectangular opening, comprising two opposite long sides and two opposite short sides; The connecting frame includes a bottom plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are respectively vertically connected to two sides of the bottom plate; The other side of the bottom plate is connected to the short side of the opening at the lower portion, and the first side plate and the second side plate are respectively vertically connected to the two long sides of the opening.

4. The prefabricated industrial building structure support-free system according to claim 3, characterized in that: The first side panel and the second side panel have the same structure, and both include a first long side, a second long side, a first short side, and a second short side. The first long side is perpendicularly connected to the first short side and the second short side. The length of the first short side is shorter than that of the second short side. The second long side is connected to the first short side and the second short side and is not perpendicular to each other. The first long side is connected to one long side of the opening, and the second short side is connected to the bottom plate.

5. The prefabricated industrial building structure support-free system according to claim 2, characterized in that: The connecting frame is inserted into the cavity through the opening and protrudes from the interior of the cavity.

6. The prefabricated industrial building structure support-free system according to claim 3, characterized in that: The connecting steel plates protrude from both ends of the bottom of the main beam, and the connecting steel plates are connected to the bottom plate.

7. The prefabricated industrial building structure support-free system according to any one of claims 1 to 6, characterized in that: The connecting block is formed by extending the upper part of the secondary beam.

8. The prefabricated industrial building structure support-free system according to any one of claims 1 to 6, characterized in that: Hook-shaped steel bars are pre-embedded at the top of the main beam and the secondary beam, steel bars protruding from the edges are pre-embedded inside the prefabricated floor slab, and the steel bars of the prefabricated floor slab are connected to the hook-shaped steel bars of the main beam and the secondary beam.

9. The prefabricated industrial building structure support-free system according to any one of claims 1 to 6, characterized in that: The precast floor slab comprises a precast concrete slab, a plurality of first precast ribs and at least one second precast rib, wherein: The plurality of first precast ribs are connected to the precast concrete slab in parallel with each other; The at least one second precast rib is arranged in a cross shape with each of the first precast ribs and is connected to the precast concrete slab.

10. The prefabricated industrial building structure support-free system according to any one of claims 1 to 6, characterized in that: The support-free system of the assembled industrial building structure is a multi-layer design, and the steel tube concrete columns of two adjacent layers are connected to each other.

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