Pre-packed pc component for high-rise buildings

Abstract

The application discloses a PC component for high-rise buildings based on preloading, which comprises a first right-angle steel formwork and a second right-angle steel formwork, the first right-angle steel formwork and the second right-angle steel formwork are welded to form a hollow accommodating cavity, a first annular steel bar net and a second annular steel bar net are placed in the accommodating cavity, a heat preservation layer is arranged between the first annular steel bar net and the inner side wall of the accommodating cavity, a high-strength concrete layer is arranged between the first annular steel bar net and the second annular steel bar net, and a compression-resistant layer is arranged in the second annular steel bar net. The PC component has excellent compression resistance, impact resistance and heat preservation performance, has good overall strength and crack resistance, has a wide application range, and is suitable for being installed on high-rise buildings.

Description

Technical Field

[0001] This invention relates to the field of PC component technology, specifically to a prefabricated PC component for high-rise buildings. Background Technology

[0002] PC components refer to concrete products manufactured in factories using standardized and mechanized methods, such as precast reinforced concrete column foundations, precast steel structure column foundations, reinforced concrete foundations for streetlights and billboards, and precast floor slabs. Concrete is a general term for engineering composite materials where cementing materials bind aggregates together. Generally speaking, concrete refers to cement concrete, also known as ordinary concrete, made by mixing cement as a binder, sand and gravel as aggregates, and water (which may contain admixtures or additives) in a specific ratio. Precast concrete components are widely used in construction, transportation, water conservancy, and other fields, playing a vital role in the national economy.

[0003] Currently, most PC components are manufactured using prefabrication methods, which not only improves labor efficiency but also reduces costs. However, current PC components have insufficient concrete strength, poor crack resistance and ductility, and short service life. Therefore, it is necessary to improve them. Summary of the Invention

[0004] The purpose of this invention is to provide a prefabricated PC component for high-rise buildings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated PC component for high-rise buildings, comprising a first right-angle steel template and a second right-angle steel template, wherein the first right-angle steel template and the second right-angle steel template are welded together to form a hollow cavity, wherein a first annular steel mesh and a second annular steel mesh are placed inside the cavity, wherein a thermal insulation layer is provided between the first annular steel mesh and the inner sidewall of the cavity, wherein a high-strength concrete layer is provided between the first annular steel mesh and the second annular steel mesh, and wherein a compressive-resistant layer is provided inside the second annular steel mesh.

[0006] Preferably, this application provides a prefabricated PC component for high-rise buildings, wherein the diameter of the first annular steel mesh is larger than the diameter of the second annular steel mesh, the first annular steel mesh and the second annular steel mesh have completely identical structures, including multiple longitudinal steel bars and multiple annular steel bars, the multiple longitudinal steel bars are tied to the inner side of the annular steel bars, and the multiple annular steel bars are arranged in parallel at equal intervals.

[0007] Preferably, this application provides a prefabricated PC component for high-rise buildings, wherein the two ends of the longitudinal steel bars extend to the outer ends of the first right-angle steel template and the second right-angle steel template, and the outer ends of the longitudinal steel bars are bent to form an arc-shaped structure.

[0008] Preferably, this application provides a prefabricated PC component for high-rise buildings, wherein the insulation layer is made of insulating concrete, and the insulating concrete components include, by weight, 100-200 parts cement, 30-40 parts resin powder, 20-30 parts polystyrene particles, 5-10 parts steel fiber, 7-14 parts vitrified microspheres, 10-20 parts crushed stone, 30-40 parts modified ceramsite, 60-90 parts rock wool, 70-100 parts expanded perlite, 20-30 parts waterproofing agent, and 10-20 parts penetrant, and the insulation layer thickness is 50mm-100mm.

[0009] Preferably, this application provides a prefabricated PC component for high-rise buildings, wherein the high-strength concrete layer comprises, by weight, 200-400 parts cement, 100-200 parts water, 50-80 parts silica fume, 40-80 parts quartz sand, 10-20 parts reinforcing fiber, 30-50 parts sludge, 80-100 parts hollow cenospheres, 100-200 parts natural sand, 30-60 parts ceramsite, and 20-40 parts recycled lightweight aggregate.

[0010] Preferably, the present application provides a prefabricated PC component for high-rise buildings, wherein the thickness of the first right-angle steel template and the second right-angle steel template is 30mm-50mm.

[0011] Preferably, this application provides a prefabricated PC component for high-rise buildings, wherein the compressive layer components include, by weight, 100-200 parts cement, 20-50 parts water, 100-200 parts aggregate, 10-25 parts polymethyl methacrylate, 5-15 parts polyvinyl chloride, 3-9 parts silane coupling agent, 20-30 parts modified basalt fiber, 30-50 parts sepiolite, 10-20 parts charcoal powder, and 10-20 parts water-reducing agent.

[0012] Preferably, the present application provides a prefabricated PC component for high-rise buildings, wherein its manufacturing method includes the following steps:

[0013] A. First, weld the first right-angle steel template and the second right-angle steel template together to form a rectangular frame;

[0014] B. Then, place the pre-made first and second ring-shaped steel meshes into the rectangular frame, with the first ring-shaped steel mesh closer to the inside of the frame and the second ring-shaped steel mesh placed inside the first ring-shaped steel mesh.

[0015] C. Then, pour thermal insulation concrete between the first ring steel mesh and the inner side of the rectangular frame to form an insulation layer.

[0016] D. After the insulation layer has solidified, pour a high-strength concrete layer between the first and second ring steel mesh.

[0017] E. After the high-strength concrete layer has solidified, pour the compressive layer inside the second ring steel mesh.

[0018] F. Finally, remove the first and second right-angle steel formwork to obtain the PC components for the high-rise building.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (1) The manufacturing method of the present invention is simple. The PC component has excellent compressive strength, impact resistance and thermal insulation properties, good overall strength and crack resistance, wide range of applications, and is suitable for installation on high-rise buildings.

[0021] (2) The insulation layer of the present invention uses thermal insulation concrete, which has fire resistance, low density, low thermal conductivity, sound insulation and seismic performance, and can increase the performance of PC components.

[0022] (3) The high-strength concrete layer used in this invention has good construction performance, high compressive strength, low fluidity loss, higher strength, and better impact and wear resistance.

[0023] (4) The compressive layer used in this invention not only ensures the permeability of permeable concrete, but also improves the compressive strength of permeable concrete, further improving the performance of PC components and extending their service life. Attached Figure Description

[0024] Figure 1 This is a top view of the present invention;

[0025] Figure 2 This is a three-dimensional schematic diagram of the present invention;

[0026] Figure 3 This is a top view of the annular steel mesh of the present invention;

[0027] Figure 4 This is a flowchart of the processing of the present invention;

[0028] In the diagram: 1. First right-angle steel formwork; 2. Second right-angle steel formwork; 3. First ring-shaped steel mesh; 4. Second ring-shaped steel mesh; 5. Insulation layer; 6. High-strength concrete layer; 7. Compression layer; 8. Longitudinal steel reinforcement; 9. Ring-shaped steel reinforcement; 10. Arc-shaped structure. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-4 The present invention provides a technical solution: a prefabricated PC component for high-rise buildings, including a first right-angle steel template 1 and a second right-angle steel template 2. The first right-angle steel template 1 and the second right-angle steel template 2 are welded to form a hollow cavity. A first annular steel mesh 3 and a second annular steel mesh 4 are placed in the cavity. An insulation layer 5 is provided between the first annular steel mesh 3 and the inner sidewall of the cavity. A high-strength concrete layer 6 is provided between the first annular steel mesh 3 and the second annular steel mesh 4. A compressive strength layer 7 is provided inside the second annular steel mesh 4.

[0031] In this invention, the diameter of the first annular steel mesh 3 is larger than the diameter of the second annular steel mesh 4. The first annular steel mesh 3 and the second annular steel mesh 4 have completely identical structures, including multiple longitudinal steel bars 8 and multiple annular steel bars 9. The multiple longitudinal steel bars 8 are tied to the inner side of the annular steel bars 9, and the multiple annular steel bars 9 are arranged in parallel at equal intervals. The two ends of the longitudinal steel bars 8 extend to the outer ends of the first right-angle steel template 1 and the second right-angle steel template 2, respectively, and the outer ends of the longitudinal steel bars 8 are bent to form an arc-shaped structure 10. The thickness of the first right-angle steel template and the second right-angle steel template is 30mm-50mm.

[0032] Example 1:

[0033] The insulation layer is made of insulating concrete, and the components of the insulating concrete include, by weight, 100-200 parts cement, 30-40 parts resin powder, 20-30 parts polystyrene particles, 5-10 parts steel fiber, 7-14 parts vitrified microspheres, 10-20 parts crushed stone, 30-40 parts modified ceramsite, 60-90 parts rock wool, 70-100 parts expanded perlite, 20-30 parts waterproofing agent, and 10-20 parts penetrating agent. The thickness of the insulation layer is 50mm-100mm.

[0034] In this embodiment, the high-strength concrete layer components include, by weight, 200-400 parts cement, 100-200 parts water, 50-80 parts silica fume, 40-80 parts quartz sand, 10-20 parts reinforcing fiber, 30-50 parts sinking beads, 80-100 parts hollow cenospheres, 100-200 parts natural sand, 30-60 parts ceramsite, and 20-40 parts recycled micro-powder lightweight aggregate.

[0035] In this embodiment, the compressive layer components include, by weight, 100-200 parts cement, 20-50 parts water, 100-200 parts aggregate, 10-25 parts polymethyl methacrylate, 5-15 parts polyvinyl chloride, 3-9 parts silane coupling agent, 20-30 parts modified basalt fiber, 30-50 parts sepiolite, 10-20 parts charcoal powder, and 10-20 parts water-reducing agent.

[0036] Example 2:

[0037] The insulation layer is made of insulating concrete, and the components of the insulating concrete include, by weight, 100-200 parts cement, 30-40 parts resin powder, 20-30 parts polystyrene particles, 5-10 parts steel fiber, 7-14 parts vitrified microspheres, 10-20 parts crushed stone, 30-40 parts modified ceramsite, 60-90 parts rock wool, 70-100 parts expanded perlite, 20-30 parts waterproofing agent, and 10-20 parts penetrating agent. The thickness of the insulation layer is 50mm-100mm.

[0038] In this embodiment, the high-strength concrete layer components include, by weight, 200-400 parts cement, 100-200 parts water, 50-80 parts silica fume, 40-80 parts quartz sand, 10-20 parts reinforcing fiber, 30-50 parts sinking beads, 80-100 parts hollow cenospheres, 100-200 parts natural sand, 30-60 parts ceramsite, and 20-40 parts recycled micro-powder lightweight aggregate.

[0039] In this embodiment, the compressive layer components include, by weight, 100-200 parts cement, 20-50 parts water, 100-200 parts aggregate, 10-25 parts polymethyl methacrylate, 5-15 parts polyvinyl chloride, 3-9 parts silane coupling agent, 20-30 parts modified basalt fiber, 30-50 parts sepiolite, 10-20 parts charcoal powder, and 10-20 parts water-reducing agent.

[0040] Example 3:

[0041] The insulation layer is made of insulating concrete, and the components of the insulating concrete include, by weight, 100-200 parts cement, 30-40 parts resin powder, 20-30 parts polystyrene particles, 5-10 parts steel fiber, 7-14 parts vitrified microspheres, 10-20 parts crushed stone, 30-40 parts modified ceramsite, 60-90 parts rock wool, 70-100 parts expanded perlite, 20-30 parts waterproofing agent, and 10-20 parts penetrating agent. The thickness of the insulation layer is 50mm-100mm.

[0042] In this embodiment, the high-strength concrete layer components include, by weight, 200-400 parts cement, 100-200 parts water, 50-80 parts silica fume, 40-80 parts quartz sand, 10-20 parts reinforcing fiber, 30-50 parts sinking beads, 80-100 parts hollow cenospheres, 100-200 parts natural sand, 30-60 parts ceramsite, and 20-40 parts recycled micro-powder lightweight aggregate.

[0043] In this embodiment, the compressive layer components include, by weight, 100-200 parts cement, 20-50 parts water, 100-200 parts aggregate, 10-25 parts polymethyl methacrylate, 5-15 parts polyvinyl chloride, 3-9 parts silane coupling agent, 20-30 parts modified basalt fiber, 30-50 parts sepiolite, 10-20 parts charcoal powder, and 10-20 parts water-reducing agent.

[0044] Example 4:

[0045] The insulation layer is made of insulating concrete, and the components of the insulating concrete include, by weight, 100-200 parts cement, 30-40 parts resin powder, 20-30 parts polystyrene particles, 5-10 parts steel fiber, 7-14 parts vitrified microspheres, 10-20 parts crushed stone, 30-40 parts modified ceramsite, 60-90 parts rock wool, 70-100 parts expanded perlite, 20-30 parts waterproofing agent, and 10-20 parts penetrating agent. The thickness of the insulation layer is 50mm-100mm.

[0046] In this embodiment, the high-strength concrete layer components include, by weight, 200-400 parts cement, 100-200 parts water, 50-80 parts silica fume, 40-80 parts quartz sand, 10-20 parts reinforcing fiber, 30-50 parts sinking beads, 80-100 parts hollow cenospheres, 100-200 parts natural sand, 30-60 parts ceramsite, and 20-40 parts recycled micro-powder lightweight aggregate.

[0047] In this embodiment, the compressive layer components include, by weight, 100-200 parts cement, 20-50 parts water, 100-200 parts aggregate, 10-25 parts polymethyl methacrylate, 5-15 parts polyvinyl chloride, 3-9 parts silane coupling agent, 20-30 parts modified basalt fiber, 30-50 parts sepiolite, 10-20 parts charcoal powder, and 10-20 parts water-reducing agent.

[0048] The insulation layer of this invention uses insulating concrete, which is fireproof, has low density, low thermal conductivity, sound insulation, and seismic resistance, thus increasing the performance of PC components. The high-strength concrete layer used in this invention has good workability, high compressive strength, low fluidity loss, higher strength, and better impact and abrasion resistance. The compressive strength layer used in this invention, while ensuring the permeability of the permeable concrete, improves its compressive strength, further enhancing the performance of PC components and extending their service life.

[0049] Working principle: The manufacturing method of this invention includes the following steps:

[0050] A. First, weld the first right-angle steel template and the second right-angle steel template together to form a rectangular frame;

[0051] B. Then, place the pre-made first and second ring-shaped steel meshes into the rectangular frame, with the first ring-shaped steel mesh closer to the inside of the frame and the second ring-shaped steel mesh placed inside the first ring-shaped steel mesh.

[0052] C. Then, pour thermal insulation concrete between the first ring steel mesh and the inner side of the rectangular frame to form an insulation layer.

[0053] D. After the insulation layer has solidified, pour a high-strength concrete layer between the first and second ring steel mesh.

[0054] E. After the high-strength concrete layer has solidified, pour the compressive layer inside the second ring steel mesh.

[0055] F. Finally, remove the first and second right-angle steel formwork to obtain the PC components for the high-rise building.

[0056] In summary, the manufacturing method of this invention is simple, and the PC component has excellent compressive strength, impact resistance, and thermal insulation properties. It also has good overall strength and crack resistance, a wide range of applications, and is suitable for installation on high-rise buildings.

[0057] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The scope of protection of this invention does not involve any improvement to the software and methods.

[0058] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art.

[0059] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A prefabricated PC component for high-rise buildings, comprising a first right-angle steel formwork (1) and a second right-angle steel formwork (2), characterized in that: After the first right-angle steel template (1) and the second right-angle steel template (2) are welded together, a hollow cavity is formed. A first ring steel mesh (3) and a second ring steel mesh (4) are placed in the cavity. An insulation layer (5) is provided between the first ring steel mesh (3) and the inner side wall of the cavity. A high-strength concrete layer (6) is provided between the first ring steel mesh (3) and the second ring steel mesh (4). A compressive strength layer (7) is provided inside the second ring steel mesh (4). The diameter of the first annular steel mesh (3) is larger than the diameter of the second annular steel mesh (4). The first annular steel mesh (3) and the second annular steel mesh (4) have the same structure, including multiple longitudinal steel bars (8) and multiple annular steel bars (9). The multiple longitudinal steel bars (8) are tied to the inside of the annular steel bars (9), and the multiple annular steel bars (9) are arranged in parallel at equal intervals. The longitudinal steel bar (8) extends to the outer ends of the first right-angle steel template (1) and the second right-angle steel template (2) respectively, and the outer ends of the longitudinal steel bar (8) are bent to form an arc structure (10). The insulation layer is made of insulating concrete, and the components of the insulating concrete include, by weight, 100-200 parts cement, 30-40 parts resin powder, 20-30 parts polystyrene particles, 5-10 parts steel fiber, 7-14 parts vitrified microspheres, 10-20 parts crushed stone, 30-40 parts modified ceramsite, 60-90 parts rock wool, 70-100 parts expanded perlite, 20-30 parts waterproofing agent, and 10-20 parts penetrating agent. The thickness of the insulation layer is 50mm-100mm. The high-strength concrete layer components, by weight, include 200-400 parts cement, 100-200 parts water, 50-80 parts silica fume, 40-80 parts quartz sand, 10-20 parts reinforcing fiber, 30-50 parts sedimentary beads, 80-100 parts hollow cenospheres, 100-200 parts natural sand, 30-60 parts ceramsite, and 20-40 parts recycled micro-powder lightweight aggregate. The thickness of both the first and second right-angle steel templates is 30mm-50mm; The compressive layer components, by weight, include 100-200 parts cement, 20-50 parts water, 100-200 parts aggregate, 10-25 parts polymethyl methacrylate, 5-15 parts polyvinyl chloride, 3-9 parts silane coupling agent, 20-30 parts modified basalt fiber, 30-50 parts sepiolite, 10-20 parts charcoal powder, and 10-20 parts water-reducing agent.

2. A method for manufacturing prefabricated PC components for high-rise buildings as described in claim 1, characterized in that: Its production method includes the following steps: A. First, weld the first right-angle steel template and the second right-angle steel template together to form a rectangular frame; B. Then, place the pre-made first and second ring-shaped steel meshes into the rectangular frame, with the first ring-shaped steel mesh closer to the inside of the frame and the second ring-shaped steel mesh placed inside the first ring-shaped steel mesh. C. Then, thermal insulation concrete is poured between the first ring steel mesh and the inner side of the rectangular frame to form an insulation layer. D. After the insulation layer has solidified, pour a high-strength concrete layer between the first and second ring steel mesh. E. After the high-strength concrete layer has solidified, pour the compressive layer inside the second ring steel mesh. F. Finally, remove the first and second right-angle steel formwork to obtain the PC components for high-rise buildings.

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