Prefabricated PC prefabricated component

Abstract

The utility model discloses an assembly type PC prefabricated component relates to prefabricated component technical field, including center piece, the inside of center piece is provided with a plurality of horizontal reinforcement, the outer surface of horizontal reinforcement is provided with a plurality of annular muscle, and the upper end extension piece is provided at the top edge of one end of center piece, and the lower end extension piece is provided at the bottom edge of the other end of center piece, the bottom of upper end extension piece and the top of lower end extension piece all are provided with the pouring groove, and the top of a plurality of horizontal reinforcement is commonly connected with the soundproof board, and the bottom of a plurality of annular muscle is commonly connected with the heat insulating board. The utility model can promote the compression and shearing capacity of concrete core area, make the component have more excellent anti -seismic ability, avoid brittle failure, simplify the construction process, reduce the dependence on professional tool and additional connecting material, improve installation efficiency, and the firmness of connection satisfies the structure stress requirement.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated component technology, specifically to an assembled PC prefabricated component. Background Technology

[0002] In recent years, with the acceleration of the industrialization of construction, prefabricated buildings have become an important development direction in the global construction industry due to their advantages such as high construction efficiency, controllable quality, energy saving and environmental protection. As the core component of prefabricated concrete structures, PC components have seen rapid growth in market demand.

[0003] Traditional components rely on on-site welding or grouting connections, which require high construction precision and are prone to problems such as positioning deviations or grouting voids, resulting in insufficient structural integrity and insufficient restraint of the ring stirrups. This makes cast-in-place joints or components with simple steel reinforcement binding prone to brittle failure under seismic loads. Moreover, component installation requires hoisting, adjustment and temporary support, which is time-consuming and costly. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the prior art by providing a prefabricated PC component that can improve comfort and shear strength, and is more convenient to construct.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated PC component, comprising a central component, wherein a plurality of transverse ribs are provided inside the central component, and a plurality of annular ribs are provided on the outer surface of the transverse ribs; an upper extension is provided at the top edge of one end of the central component, and a lower extension is provided at the bottom edge of the other end of the central component; a casting groove is provided at the bottom end of the upper extension and the top end of the lower extension; a sound insulation board is connected to the top ends of the plurality of transverse ribs, and a heat insulation board is connected to the bottom ends of the plurality of annular ribs.

[0006] Preferably, the annular reinforcement includes an upper extension, a lower extension, a top protrusion, and a bottom protrusion. There are multiple top and bottom protrusions, and the top and bottom protrusions are connected end to end. The upper extension is located on the side of the bottom protrusion at the edge, and the lower extension is located on the side of the top protrusion at the edge. The top and bottom protrusions connected end to end form a wave shape, so that the annular reinforcement forms a continuous constraint network inside the component, which provides a more uniform constraint effect on the core concrete, improves the seismic performance of the component, prevents the reinforcement from being pulled out of the concrete, and significantly enhances the bond and anchorage performance between the reinforcement and the concrete.

[0007] Preferably, the upper and lower extension ends extend out of both sides of the central member, and the two annular bars form a group. Each group of annular bars is sleeved at the top and bottom protrusions of the transverse bar. The upper and lower extension ends are located on both sides of the central member. When the precast components are assembled, two adjacent precast components are tied together by the corresponding upper and lower extension ends to ensure the rigidity of the connection. The paired annular bars are tied at specific positions of the transverse bar to form a stable steel mesh, ensuring that the spacing and position of the steel bars are accurate before and during the concrete pouring process.

[0008] Preferably, a first extension frame is provided on the outer surface of the transverse rib located at one end edge, and a second extension frame is provided on the outer surface of the transverse rib located at the other end edge. The first extension frame extends into the interior of the lower extension member, and the second extension frame extends into the interior of the upper extension member. The first and second extension frames effectively transfer the force of the central member to the lower and upper extension members. Through the connection of the extension frames, the upper and lower extension members and the central member form a solid whole and jointly participate in the force, ensuring that the force at the connection node can be safely transferred to the entire component body.

[0009] Preferably, a pre-embedded channel is provided at the top of the upper extension member corresponding to the pouring groove, extending directly from the upper surface of the pre-embedded channel member to the lower pouring groove. During construction, concrete can be directly injected into the lower pouring groove through the pre-embedded channel, which is convenient and quick, and can ensure that the pouring groove is filled densely to avoid voids, thereby ensuring the strength and quality of the connection node.

[0010] Preferably, two through holes are provided at each of the four corners of the heat insulation board and the sound insulation board. During factory prefabrication, steel bars are used to fix the heat insulation board and the internal transverse reinforcement through these holes to ensure that the heat insulation board and the sound insulation board do not shift when the concrete is poured.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This application has a structure of transverse and ring reinforcement. The rigid connection of the steel reinforcement skeleton can be completed during the pre-assembly of the component in the factory to form a continuous stress system. The wave-shaped staggered design of the ring reinforcement and transverse reinforcement effectively improves the compressive and shear resistance of the concrete core area, giving the component better seismic resistance and avoiding brittle failure.

[0012] 2. In this application, the two ends of the central component are designed with an upper extension end and a lower extension end, respectively, and are combined with a casting groove and a pre-embedded channel to achieve rapid alignment and fixation of adjacent components, simplifying the construction process, reducing the reliance on professional tools and additional connection materials, improving installation efficiency, and ensuring that the connection firmness meets the structural stress requirements. Attached Figure Description

[0013] Fig. 1 This is a schematic diagram of the overall structure of this utility model; Fig. 2 This is a schematic diagram of the sound insulation panel structure of this utility model; Fig. 3 This is a schematic diagram showing the connection state of the transverse ribs and annular ribs of this utility model; Fig. 4 This is a schematic diagram of the transverse rib structure of this utility model.

[0014] In the figure: 1. Central component; 2. Upper extension component; 3. Transverse rib; 301. Upper side extension; 302. Top protrusion; 303. Bottom protrusion; 304. Lower side extension; 4. Lower extension component; 5. Casting groove; 6. Embedded channel; 7. Heat insulation board; 8. Through hole; 9. Sound insulation board; 10. First extension frame; 11. Circular rib; 12. Second extension frame. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figs. 1 to 4As shown, a precast precast PC component includes a central component 1, which is cast from concrete and bears the main structural load. The central component 1 has several transverse reinforcements 3 inside, and several annular reinforcements 11 on the outer surface of the transverse reinforcements 3. The transverse reinforcements 3 and annular reinforcements 11 form the skeleton of the component. The transverse reinforcements 3 mainly resist the shear force and bending moment brought by the transverse direction. The annular reinforcements 11 are wrapped around the transverse reinforcements 3 in a closed manner, serving to restrain the core concrete and enhance the seismic ductility and compressive strength of the component. Together, they form a steel reinforcement skeleton, ensuring the overall stability of the component during transportation, hoisting, and use. One end of the central component 1 has an upper extension... Component 2, the other end of the central component 1 is provided with a lower extension 4. The upper extension 2 and the lower extension 4 form the connecting wing at the end of the component, providing structural and operational space for connection with adjacent components on the left and right. The bottom end of the upper extension 2 and the top end of the lower extension 4 are both provided with casting grooves 5. After the adjacent components are assembled on the construction site, concrete is poured in the casting grooves 5. After the concrete hardens, the upper and lower components are tightly connected into a whole, realizing the effective transmission of force and ensuring the integrity of the building structure. The top ends of several transverse ribs 3 are connected to sound insulation boards 9, and the bottom ends of several annular ribs 11 are connected to heat insulation boards 7. The sound insulation boards 9 are located on the indoor side to block the transmission of airborne sound, and the heat insulation boards 7 are located on the outdoor side to reduce heat conduction. This realizes the integration of structure with thermal insulation and sound insulation, avoiding the problem of easy detachment of traditional external insulation boards.

[0017] Specifically, the annular reinforcement 11 includes an upper extension 301, a lower extension 304, a top protrusion 302, and a bottom protrusion 303. There are several top protrusions 302 and bottom protrusions 303, and the top protrusions 302 and bottom protrusions are connected end to end. The upper extension 301 is located on the side of the bottom protrusion 303 at the edge, and the lower extension 304 is located on the side of the top protrusion 302 at the edge. The top protrusions 302 and bottom protrusions 303 connected end to end form a wave shape, so that the annular reinforcement 11 forms a continuous constraint network inside the component, which makes the constraint effect on the core concrete more uniform, improves the seismic performance of the component, prevents the reinforcement from being pulled out of the concrete, and enhances the bond and anchorage performance between the reinforcement and the concrete.

[0018] Furthermore, the upper extension 301 and the lower extension 304 extend out from both sides of the central member 1, and the two annular bars 11 form a group. Each group of annular bars 11 is sleeved at the top protrusion 302 and the bottom protrusion 303 of the transverse bar 3. The upper extension 301 and the lower extension 304 are located on both sides of the central member 1. When the precast components are assembled, two adjacent precast components are tied together by the corresponding upper extension 301 and lower extension 304 to ensure the rigidity of the connection. The paired annular bars 11 are tied at specific positions of the transverse bar 3 to form a stable steel mesh, ensuring that the spacing and position of the steel bars are accurate before and during the concrete pouring process.

[0019] Furthermore, a first extension frame 10 is provided on the outer surface of the transverse rib 3 at one end edge, and a second extension frame 12 is provided on the outer surface of the transverse rib 3 at the other end edge. The first extension frame 10 extends into the interior of the lower extension member 4, and the second extension frame 12 extends into the interior of the upper extension member 2. The first extension frame 10 and the second extension frame 12 effectively transfer the force of the central member 1 to the lower extension member 4 and the upper extension member 2. Through the connection of the extension frames, the upper extension member 2 and the lower extension member 4 form a solid whole with the central member 1 and jointly participate in the force, ensuring that the force at the connection node can be safely transferred to the entire component body.

[0020] Furthermore, a pre-embedded channel 6 is provided at the top of the upper extension 2 at the position corresponding to the pouring groove 5. The pre-embedded channel 6 extends directly from the upper surface of the component to the lower pouring groove 5. During construction, concrete can be directly injected into the lower pouring groove 5 through the pre-embedded channel 6, which is convenient and quick, and can ensure that the pouring groove 5 is filled densely to avoid voids, thereby ensuring the strength and quality of the connection node.

[0021] Furthermore, two through holes 8 are provided at each of the four corners of the heat insulation board 7 and the sound insulation board 9. During factory prefabrication, steel bars are used to fix the heat insulation board 7 and the sound insulation board 9 to the internal transverse reinforcement 3 through these holes to ensure that the heat insulation board 7 and the sound insulation board 9 do not shift when the concrete is poured.

[0022] The usage method of this embodiment is as follows: When installing prefabricated PC components, the components are slowly hoisted to the predetermined position, ensuring that the end with the upper extension 2 is on top and the end with the lower extension 4 is on the bottom. The lower extension 4 is accurately positioned on the corresponding position of the lower component, and the bottom pouring groove 5 should be aligned with the corresponding structure on the top of the lower component to form a continuous groove cavity. At the same time, the lateral upper extension 301 or lower extension 304 of this component is brought close to the corresponding extension end of the adjacent component that has been placed in place to prepare for subsequent binding connection. The lateral exposed upper extension 301 and lower extension 304 of this component are bound to the corresponding steel bars of the left and right adjacent components to form a horizontal continuous steel mesh, thereby connecting the left and right components into a whole. Concrete is poured into the continuous cavity formed by the bottom pouring groove 5 of the component and the top of the lower component through the pre-embedded channel 6 set at the top of the upper extension 2. After the concrete solidifies, the two adjacent components are tightly connected.

[0023] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A prefabricated precast PC component, comprising a central component (1), characterized in that: The center component (1) has several transverse ribs (3) inside, and several annular ribs (11) are provided on the outer surface of the transverse ribs (3). An upper extension (2) is provided at the top edge of one end of the center component (1), and a lower extension (4) is provided at the bottom edge of the other end of the center component (1). A casting groove (5) is provided at the bottom end of the upper extension (2) and the top end of the lower extension (4). The top ends of several transverse ribs (3) are connected to a sound insulation board (9), and the bottom ends of several annular ribs (11) are connected to a heat insulation board (7).

2. The prefabricated PC component according to claim 1, characterized in that: The annular rib (11) includes an upper extension (301), a lower extension (304), a top protrusion (302), and a bottom protrusion (303). There are several top protrusions (302) and bottom protrusions (303), and the top protrusions (302) are connected to the bottom end. The upper extension (301) is located on the side of the bottom protrusion (303) at the edge, and the lower extension (304) is located on the side of the top protrusion (302) at the edge.

3. The prefabricated PC component according to claim 2, characterized in that: The upper extension (301) and the lower extension (304) extend out of the two sides of the center member (1), and the two annular ribs (11) form a group. Each group of annular ribs (11) is sleeved at the top protrusion (302) and bottom protrusion (303) of the transverse rib (3).

4. The prefabricated PC component according to claim 1, characterized in that: A first extension frame (10) is provided on the outer surface of the transverse rib (3) located at one end edge, and a second extension frame (12) is provided on the outer surface of the transverse rib (3) located at the other end edge. The first extension frame (10) extends into the interior of the lower extension member (4), and the second extension frame (12) extends into the interior of the upper extension member (2).

5. The prefabricated PC component according to claim 1, characterized in that: An embedded channel (6) is provided at the top of the upper extension (2) at the position corresponding to the pouring groove (5).

6. The prefabricated PC component according to claim 1, characterized in that: Two through holes (8) are opened at the four corners of the heat insulation board (7) and the sound insulation board (9).

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