A precast monolithic multi-story frame structure

Abstract

This invention discloses a multi-layer frame structure for precast monolithic construction, relating to the field of precast buildings. It includes columns, support columns, and a precast foundation. Both the columns and support columns have internal connecting holes, and connectors are slidably installed within these holes. The inner diameter of the connecting hole and the outer diameter of the connector are different at their upper and lower ends, with the top of the inner diameter of the connecting hole matching the bottom of the outer diameter of the connector. Both the columns and support columns have slots at their tops, within which pressure plates are detachably installed. The tops of the pressure plates have multiple through holes corresponding to the connecting holes. This invention improves the stability between the columns and the precast foundation by inserting pressure plates into the tops of the columns. By pressing the pressure plates onto the tops of the support columns, the connectors within the support columns are pushed into the through holes of the bottom pressure plates by the weight of the top pressure plates. During this process, workers can set up multi-layer frames according to actual needs.

Description

Technical Field

[0001] This invention relates to the field of prefabricated buildings, specifically to a multi-story frame structure for prefabricated monolithic buildings. Background Technology

[0002] Currently, prefabricated buildings are being promoted from top to bottom in daily construction, and efforts are being intensified to build modern demonstration cities. Various cities are formulating and implementing the scope and goals of prefabricated buildings, and gradually promoting the prefabrication rate of buildings. Generally, the structural system of reinforced concrete factory buildings is a frame structure, a frame structure, or a bottom frame with a frame structure.

[0003] In order to ensure overall stability, existing frame structures typically employ cast-in-place reinforced concrete construction. This involves using formwork and supporting scaffolding in a designated area of ​​the factory building. A reinforcing cage is then placed inside the formwork, and concrete is poured in. After a certain period of curing, the formwork and scaffolding are dismantled to complete the column casting. This process is wasteful of manpower and resources, incurs high on-site labor costs, and makes quality control difficult. Furthermore, the construction process requires waiting for the columns to fully cure before proceeding to the next step, resulting in reduced overall construction efficiency.

[0004] In conclusion, the above-mentioned structure wastes too much of the overall manpower and material resources during actual construction, and the construction process requires waiting for the columns to be completely cured before the next step can be carried out, which leads to a decrease in the overall construction efficiency. Summary of the Invention

[0005] Based on this, the purpose of this invention is to provide a multi-story precast cast-in-place frame structure to solve the technical problem of excessive waste of overall manpower and material resources during construction, and the need to wait for the columns to be completely cured before proceeding to the next step, which leads to a reduction in overall construction efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a precast monolithic multi-story frame structure, comprising columns, support columns and precast foundations, wherein the columns and support columns are provided with connecting holes, and a connector is slidably disposed in the connecting holes, wherein the inner diameter of the connecting hole and the outer diameter of the connector are different at the top and bottom ends, the top of the inner diameter of the connecting hole is adapted to the bottom of the outer diameter of the connector, and the bottom dimension of the inner diameter of the connecting hole and the outer diameter of the connector is larger than the top dimension;

[0007] Both the column and the support column are provided with a slot at the top, and a pressure plate is detachably installed in the slot. The top of the pressure plate is provided with an array of through holes corresponding to the connection hole. The top of the precast foundation is provided with a casting groove that cooperates with the connector, and the top of the casting groove is open.

[0008] By adopting the above technical solution, a pressure plate is inserted into the top of the column, which causes the connector to move downwards, allowing one end of the connector to be inserted into the casting groove of the precast foundation. Concrete is then poured in through the connection hole, improving the stability between the column and the precast foundation. After the concrete in the connection hole of the column has cured, the pressure plate is pressed onto the top of the support column. During this process, the connector inside the support column is pushed into the through hole of the bottom pressure plate by the gravity of the top pressure plate. Concrete is then poured in through the through hole of the top pressure plate. During this process, workers can set up multi-layer scaffolding according to the actual situation.

[0009] The present invention is further configured such that a precast floor slab is laid between the pressure plates, wherein the precast floor slabs are connected by connecting blocks for limiting.

[0010] Preferably, after the columns are installed, the precast floor slabs are installed between the pressure plates, and then the precast floor slabs are limited by connecting blocks. This process makes it easier for workers to stand on top of the precast floor slabs to carry out operations and construction, thus improving the overall practicality of the device.

[0011] The invention is further configured such that the top of both the column and the support column is provided with bull horns, wherein a stress beam is supported at the top of the bull horn, and a series of corner braces are supported at the bottom of the stress beam, and the corner braces and the stress beam are connected by welding.

[0012] Preferably, the horn-shaped design facilitates the installation of stress beams on the side walls of the column by construction workers. The corner braces on the stress beams improve the overall strength of the stress beams and prevent deformation caused by stress on the stress beams themselves.

[0013] The present invention is further configured such that an array of purlins is vertically arranged at the bottom of the precast floor slab, and multiple sets of crossbeams are connected to the bottom of the purlins, wherein the crossbeams are arranged horizontally and their ends overlap the top of the stress beam.

[0014] Preferably, the purlins themselves support the precast floor slab, which can transfer the force of the precast floor slab to the bottom beam, and then to the stress beam through the beam, ensuring the uniformity of the overall force on the floor slab. Furthermore, the perpendicular arrangement of the beam and the purlin further improves the stability of the precast floor slab located inside the pressure plate.

[0015] The present invention is further configured such that ground insertion holes are symmetrically arranged at the bottom of the prefabricated foundation, and the bottom of the ground insertion holes is arranged in a spike shape.

[0016] Preferably, the spiked design makes it easier for construction workers to insert the ground stake into the designated location, improving the overall ease of installation and ensuring that the precast foundation itself is horizontally positioned relative to the ground.

[0017] The present invention is further configured such that the top of the precast foundation and the bottom of the column, and the top of the pressure plate and the bottom of the support column are all connected by a high-strength bolt assembly, and the connection between the two is sealed.

[0018] Preferably, after the workers connect the columns and precast foundations with high-strength bolt assemblies, when pouring concrete into the interior, it can prevent concrete leakage between the two, further ensuring that the concrete fills the connection holes of the columns and the pouring grooves of the precast foundations. The same applies to the support columns and pressure plates, ensuring the support strength of the columns and support columns themselves.

[0019] The present invention is further configured such that the through hole, the connecting hole and the inner wall of the casting groove are all smooth.

[0020] Preferably, the smooth surface facilitates the concrete pouring process, ensuring that the concrete flows uniformly to the bottom and preventing blockage at the middle of the connection hole.

[0021] The present invention is further configured such that the precast foundation is convex in shape and has a rough surface on its outer wall.

[0022] Preferably, after the precast foundation is installed at the designated location using ground anchors, it is fixed by pouring concrete. The convex shape ensures that the precast foundation itself will not tilt, further improving the overall stability.

[0023] The present invention is further configured such that the column and the support column are integrally cast.

[0024] Preferably, the stability of the connection holes inside the column and the support column is ensured to prevent cracks from occurring during the subsequent drilling of the connection holes.

[0025] In summary, the present invention has the following main beneficial effects:

[0026] This invention involves pre-embedding precast foundations in designated areas of the factory. The columns are remotely processed and transported. Workers use high-strength bolt assemblies to install the columns with the precast foundations, reducing the requirements for on-site construction. After the columns are installed, the precast floor slabs can be erected and the overall floor structure layer can be poured directly. This reduces the overall workload and significantly improves construction efficiency, quality, and safety.

[0027] This invention features a connecting hole inside the column, where the dimensions of the connecting hole and the two ends of the connector are different. The upper inner diameter of the connecting hole matches the outer diameter of the bottom of the connector, ensuring that the bottom end of the connector remains inside the connecting hole during transportation. This facilitates the subsequent assembly of the column and the precast foundation. After the column and the precast foundation are installed, a pressure plate is inserted into the top of the column. This pressure plate causes the connector to move downwards, allowing one end of the connector to be inserted into the pouring groove of the precast foundation. Concrete is then poured in through the connecting hole, allowing it to flow into the bottom pouring groove. After the entire structure has cured, the stability between the column and the precast foundation is improved, saving a significant amount of manpower and resources in the process.

[0028] This invention features an array of through holes on the top of a pressure plate. Workers align the support columns with these through holes, and the support columns also have connecting holes. After the concrete in the connecting holes of the columns has cured, the pressure plate is pressed onto the top of the support columns. During this process, the connectors inside the support columns are pushed into the through holes of the bottom pressure plate by the weight of the top pressure plate. Concrete is then poured in through the through holes of the top pressure plate, ensuring the stability of the support columns at the top of the pressure plate. Workers can then construct multi-layered frames as needed, forming a safe and stable multi-layered frame structure, thus expanding the building's spatial development and comprehensively improving the utilization efficiency of industrial land. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the beam and purlin structure of the present invention;

[0030] Figure 2 This is a structural schematic diagram of the column and floor slab assembly state of the present invention;

[0031] Figure 3 For the present invention Figure 1 Enlarged view of A in the middle;

[0032] Figure 4 This is a schematic diagram of the column, prefabricated foundation, and pressure plate structure of the present invention;

[0033] Figure 5 This is a schematic diagram of the connector structure of the present invention;

[0034] Figure 6 This is a cross-sectional view of the column pressure plate of the present invention in its assembled state;

[0035] Figure 7 For the present invention Figure 6 Enlarged view of B in the middle;

[0036] Figure 8 This is a cross-sectional view of the column of the present invention;

[0037] Figure 9 This is a schematic diagram of the prefabricated foundation structure of the present invention;

[0038] Figure 10 For the present invention Figure 8 Enlarged view of C in the middle;

[0039] Figure 11 This is a bottom view of the prefabricated foundation of the present invention;

[0040] Figure 12 This is a schematic diagram of the support column pressure plate assembly structure of the present invention;

[0041] Figure 13 This is a cross-sectional view of the support column of the present invention.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Column; 2. Support column; 3. Precast foundation; 4. Purlin; 5. Beam; 6. Pressure plate; 7. Stress beam; 8. Through hole; 9. Connection hole; 10. Connector; 11. Casting groove; 12. Horn; 13. Ground plug; 14. Precast floor slab. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0045] The embodiments of the present invention will now be described.

[0046] Please see Figures 1-13 The precast monolithic multi-story frame structure shown includes columns 1, support columns 2, precast foundations 3, a casting mechanism, high-strength bolt assemblies, and lap joint assemblies. Construction workers excavate pits on the site to embed the precast foundations 3, and then place the precast foundations 3 inside the pits. Symmetrical ground inserts 13 are provided at the bottom of the precast foundations 3, with spikes at the bottom. These spikes facilitate insertion into designated positions, improving the overall ease of installation and ensuring the precast foundations 3 are horizontally positioned relative to the ground. The columns 1 and support columns 2 are integrally cast. Construction workers can transport the cast columns 1 and support columns 2 to the construction site, reducing on-site construction requirements and significantly improving construction efficiency, quality, and safety.

[0047] Because the column 1 itself is provided with a connecting hole 9, which is set through the column 1, and the inner diameter of the connecting hole 9 is different at the top and bottom, with the inner diameter at the bottom being larger than that at the top. At the same time, the connector 10 is inserted into the column 1 through the connecting hole 9, and the outer diameter of the connector 10 is also different at the top and bottom, with the outer diameter at the bottom being larger than that at the top. In the connecting hole 9, the outer diameter at the bottom of the connector 10 matches the inner diameter at the top of the connecting hole 9, so that the connector 10 can be locked in the connecting hole 9 and will not move without any external force. During this process, it is ensured that the connector 10 will not penetrate through the bottom of the column 1. The construction personnel use lifting equipment to lift the column 1 as a whole, and then connect it with the precast foundation 3 on the ground. The column 1 and the precast foundation 3 are limited by high-strength bolt assembly.

[0048] Since a slot is provided at the top of column 1, after installation, the lifting equipment will insert the pressure plate 6 into the slot at the top of column 1. During this process, the pressure plate 6 will press the connector 10 protruding from the slot downward. Since a pouring groove 11 that matches the connector 10 is opened at the top of the precast foundation 3, the connector 10 will slide downward into the pouring groove 11 of the precast foundation 3. The pressure plate 6 has a through hole 8 at the top, which is concentric with the connecting hole 9 on column 1. Construction workers can pour concrete into the through hole 8. At this time, since the connector 10 itself is pressed downward into the pouring groove 11 by the pressure plate 6, the bottom end of the connector 10 will no longer block the top of the connecting hole 9. Therefore, the poured concrete will flow downward by its own weight.

[0049] Because the top of the pouring trough 11 is open, the concrete will flow into the trough 11 until it fills the connecting hole 9, at which point pouring will stop. After the overall curing is completed, the stability between the column 1 and the precast foundation 3 is improved. This process saves a lot of manpower and resources. After the column 1 is installed, the precast floor slab 14 can be erected directly and the overall pouring of the floor structure can be carried out. This reduces the overall workload. The support column 2 also has connecting holes 9. After the column is cured, the pressure plate 6 is pressed through the connecting holes 9 on the support column 2. The through hole 8 is then used to install the support column 2 on the top of the pressure plate 6 using a high-strength bolt assembly. Subsequently, a new set of pressure plates 6 will be pressed onto the top of the support column 2. During this process, the connector 10 inside the support column 2 will be inserted into the through hole 8 of the bottom pressure plate 6 by the gravity of the top pressure plate 6. Then, concrete is poured in through the through hole 8 of the top pressure plate 6 to complete the stability of the support column located on the top of the pressure plate 6. During this process, workers can set up multi-layer frames according to the actual situation to form a safe and stable multi-layer frame structure, develop the building into space, and comprehensively improve the utilization efficiency of industrial land.

[0050] For details regarding the above embodiments, please refer to [link / reference]. Figure 2 The precast floor slabs 14 are installed between the pressure plates 6. The precast floor slabs 14 are connected by connecting blocks. After the column 1 is installed, the precast floor slabs 14 are installed between the pressure plates 6 and then the connecting blocks are used to limit the position of the precast floor slabs 14. This process makes it easier for workers to stand on top of the precast floor slabs 14 to carry out construction, thus improving the overall practicality of the device.

[0051] For details regarding the above embodiments, please refer to [link / reference]. Figure 4 and Figure 12 The top of the precast foundation 3 and the bottom of the column 1, and the top of the pressure plate 6 and the bottom of the support column 2 are all connected by high-strength bolt assemblies, and the connection between the two is sealed. After the workers connect the column 1 and the precast foundation 3 with the high-strength bolt assemblies, when pouring concrete into the interior, it can prevent the concrete from leaking between the two, and further ensure that the concrete fills the connection hole 9 of the column 1 and the pouring groove 11 of the precast foundation 3. The same applies to the support column 2 and the pressure plate 6, ensuring the support strength of the column 1 and the support column 2.

[0052] For details regarding the above embodiments, please refer to [link / reference]. Figure 6 and Figure 9 The inner walls of the through hole 8, the connecting hole 9, and the pouring groove 11 are all smooth. The smoothness facilitates the uniform flow of concrete to the bottom during the concrete pouring process, preventing the concrete from getting blocked in the middle of the connecting hole 9. At the same time, the precast foundation 3 is convex in shape, and the outer wall of the precast foundation 3 is roughened. After the precast foundation 3 is installed in the designated position by the ground plug 13, it is fixed by pouring concrete. The convex shape ensures that the precast foundation 3 will not tilt, further improving the overall stability.

[0053] Please see Figure 1The diagram illustrates a precast, monolithic, multi-story frame structure, similar in overall structure to Embodiment 1. Both the columns 1 and support columns 2 are topped with horns 12, with stress beams 7 supported at the top of each horn 12. The bottom of each stress beam 7 is supported by a series of corner braces, which are welded to the stress beams 7. The horns 12 facilitate the installation of stress beams 7 on the side walls of the columns, and the corner braces on the stress beams 7 enhance the overall strength of the beams, preventing deformation under stress. Furthermore, the precast floor slab 14 has a series of purlins 4 vertically arranged at its bottom, and the bottom of the purlins 4 is connected to multiple sets of crossbeams 5. The crossbeams 5 are arranged horizontally and overlap the top of the stress beams 7 at both ends. The purlins 4 themselves support the precast floor slab 14 and can transfer the force of the precast floor slab 14 to the crossbeams 5 at the bottom, and then to the stress beams 7 through the crossbeams 5, so as to ensure the uniformity of the overall force of the floor slab. In addition, the crossbeams 5 are arranged perpendicularly to the purlins 4, which further improves the stability of the precast floor slab 14 located inside the pressure plate 6.

[0054] In practical operation, the present invention is used as follows: Workers embed the precast foundation 3 into the designated area of ​​the factory construction site. Then, using lifting equipment, the processed column 1 is transported to the designated area. Simultaneously, a connecting hole 9 is opened inside the column 1. Workers insert the connector 10 into the connecting hole 9. Since the dimensions of the two ends of the connector 10 and the connecting hole 9 are different, the upper inner diameter of the connecting hole 9 matches the outer diameter of the bottom of the connector 10. During transportation, this ensures that the bottom end of the connector 10 remains inside the connecting hole 9 and does not fall out. At the same time, the column 1 is connected to the precast foundation 3 using lifting equipment, and a high-strength bolt assembly is used to limit its movement. Then, a pressure plate 6 is inserted into the top of the column 1. During this process, the pressure plate 6 will press the connector 10 inside the connecting hole 9, causing the connector 10 to slide downwards, with one end inserting into the pouring groove 11 on the precast foundation 3.

[0055] Concrete is then poured into the top of the pressure plate 6 through the through hole 8. During this process, the bottom end of the connector 10 is inserted into the pouring groove 11, and the concrete flows to the bottom through the connector 9 until it fills the connector 9, at which point the pouring stops. After the overall curing is completed, the stability between the column 1 and the precast foundation 3 is improved. The support column 2 is then hoisted to the top of the pressure plate 6, and the connector 9 on the support column 2 coincides with the through hole 8 at the top of the pressure plate 6. At this point, the support column 2 is then fixed to the top of the pressure plate 6 by a high-strength bolt assembly. Then, a new set of pressure plates 6 is pressed onto the top of the support column 2. During this process, the connector 10 inside the support column 2 is inserted into the through hole 8 of the bottom pressure plate 6 by the weight of the top pressure plate 6. Concrete is then poured into the top of the bottom pressure plate 6 through the through hole 8 of the top pressure plate 6, thus stabilizing the support column at the top of the pressure plate 6. During this process, workers can set up multiple layers of scaffolding according to the actual situation to form a safe and stable multi-layer scaffolding structure.

[0056] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A precast monolithic multi-story frame structure, comprising columns (1), support columns (2), and precast foundations (3), characterized in that: Both the column (1) and the support column (2) have connecting holes (9) inside, and a connector (10) is slidably arranged in the connecting hole (9). The inner diameter of the connecting hole (9) and the outer diameter of the connector (10) are different at the top and bottom ends. The top of the inner diameter of the connecting hole (9) matches the bottom of the outer diameter of the connector (10), and the bottom dimension of the inner diameter of the connecting hole (9) and the outer diameter of the connector (10) is larger than the top dimension. The top of the column (1) and the support column (2) are provided with a slot, and a pressure plate (6) is detachably provided in the slot. The top of the pressure plate (6) is provided with an array of through holes (8) corresponding to the connection hole (9). The top of the precast foundation (3) is provided with a casting groove (11) that cooperates with the connector (10), and the top of the casting groove (11) is open.

2. The precast monolithic multi-story frame structure according to claim 1, characterized in that: Precast floor slabs (14) are laid between the pressure plates (6), and the precast floor slabs (14) are connected by connecting blocks.

3. A precast monolithic multi-story frame structure according to claim 2, characterized in that: Both the column (1) and the support column (2) are provided with bull horns (12) at the top. The top of the bull horn (12) is supported by a stress beam (7), and the bottom of the stress beam (7) is supported by a series of corner braces. The corner braces and the stress beam (7) are connected by welding.

4. A multi-story precast monolithic frame structure for buildings according to claim 3, characterized in that: The bottom of the precast floor slab (14) is provided with a series of purlins (4), and the bottom of the purlins (4) is connected to a number of beams (5), which are horizontally arranged and overlapped at both ends with the top of the stress beam (7).

5. A precast monolithic multi-story frame structure according to claim 1, characterized in that: The bottom of the prefabricated foundation (3) is symmetrically provided with ground plugs (13), and the bottom of the ground plugs (13) is set in a spike shape.

6. A precast monolithic multi-story frame structure according to claim 1, characterized in that: The top of the precast foundation (3) and the bottom of the column (1), and the top of the pressure plate (6) and the bottom of the support column (2) are all connected by high-strength bolt assemblies, and the connection between the two is sealed.

7. A precast monolithic multi-story frame structure according to claim 1, characterized in that: The inner walls of the through hole (8), the connecting hole (9) and the casting groove (11) are all smooth.

8. A precast monolithic multi-story frame structure according to claim 1, characterized in that: The precast foundation (3) is convex in shape and has a rough surface on its outer wall.

9. A precast monolithic multi-story frame structure according to claim 1, characterized in that: The column (1) and the support column (2) are integrally cast.

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