Precast structural member, composite foundation and method of manufacturing the same

Abstract

The application provides a prefabricated structural member, a composite foundation and a manufacturing method thereof. The prefabricated structural member comprises a support rib and two support members which are integrally formed; the support rib is arranged between the two opposite support members to form a first groove and a second groove, and a through hole is formed in the support rib and communicates with the first groove and the second groove; the second groove is configured to form a cavity together with the foundation, and the cavity and the first groove are configured to be filled with concrete, and the first groove is configured as a formwork of a structural beam. The first groove and the second groove are formed in the prefabricated structural member, the composite foundation can be manufactured in the form of a combination of prefabrication and cast-in-situ concrete, the weight of the prefabricated structural member can be reduced, the hoisting difficulty is reduced, the foundation surface can be leveled twice during the pouring of the concrete, the composite foundation is closely combined with the foundation, the stress effect of the composite foundation is improved, the strip foundation and the structural beam can be formed at one time, and the construction efficiency of the building is improved.

Description

Technical Field

[0001] This application relates to the field of building technology, and more specifically, to a prefabricated structural component, a composite foundation, and a method for manufacturing the same. Background Technology

[0002] In related technologies, building foundations that are cast in place on the construction site often have disadvantages such as long construction period, large use of formwork, large labor load and high cost.

[0003] While precast solid concrete foundations shorten the construction period, they have drawbacks such as excessive weight and difficulties in transportation and hoisting. Furthermore, during on-site construction, the bottom of the foundation is not perfectly level, which can lead to poor bonding between the foundation bottom and the foundation after the precast concrete foundation is lowered, resulting in voids that are difficult to fill. Under the load on the upper part of the foundation, this can easily cause uneven stress distribution, leading to uneven settlement and foundation deformation. Summary of the Invention

[0004] This application addresses the shortcomings of existing methods by proposing a precast structural component, a composite foundation, and its manufacturing method to solve the technical problems of excessive weight, difficult transportation and hoisting, and the tendency for voids to form between the precast concrete foundation and the ground that are difficult to fill during construction.

[0005] In the first aspect, embodiments of this application provide a prefabricated structural component, including an integrally formed support rib and two support members; The support rib is disposed between two opposing support members. The prefabricated structural member forms a first groove with an opening facing the first end and a second groove with an opening facing the second end. The support rib is provided with a through hole connecting the first groove and the second groove. The second groove is configured to enclose the foundation to form a cavity, and the cavity and the first groove are configured to be filled with concrete. The first groove is configured to serve as a template for the structural beam.

[0006] Optionally, the prefabricated structural member extends along a first direction, and there are multiple through holes, which are arranged at intervals along the first direction; The two support members are arranged symmetrically along the vertical plane containing the first direction.

[0007] Optionally, the support members all include side ribs, side wings, and legs; The support rib is sandwiched between the side ribs of the two support members, forming the first groove; The outrigger is located on the outside of the side rib and is configured to contact the foundation; The side wing connects between the support leg and the side rib, and the support legs and side wing of the two support members and the support rib enclose to form the second groove.

[0008] Optionally, the side rib extends along the vertical plane containing the first direction, and the inner wall surface of the side rib is a first guide slope; the width of the first groove gradually decreases from the end away from the support rib to the end near the support rib.

[0009] Optionally, the support leg is located below the side rib, and the side wing is obliquely arranged between the side rib and the support leg; From the side closest to the side rib to the side furthest from the side rib, the wall thickness of the side wing gradually decreases, and the inner wall surface of the side wing forms a second guide slope.

[0010] Optionally, the support rib has half-holes at both ends along the first direction, and the half-holes are connected between the first groove and the second groove; At least two of the prefabricated structural members are configured to be spliced ​​along a first direction, such that the two half-holes are spliced ​​together to form the through hole.

[0011] Secondly, embodiments of this application provide a composite foundation, including the prefabricated structural member described in the above embodiments. The top of the prefabricated structural member has a first groove, and the bottom has a second groove that encloses the foundation to form a cavity. The foundation also includes: Concrete filling the first groove and the cavity; The composite foundation includes a strip foundation at the bottom and a structural beam at the top.

[0012] Optionally, the superposition basis of the above embodiments further includes: The second reinforcing bar connects between the two legs; A reinforcing cage is disposed within the first groove and extends along the first groove; A reinforcing mesh, which is set inside the cavity, includes staggered transverse and longitudinal reinforcing bars.

[0013] Thirdly, embodiments of this application provide a method for manufacturing an overlay foundation, comprising the following steps: The prefabricated structural component is placed on the foundation, such that the second groove at the bottom of the prefabricated structural component is enclosed by the foundation to form a cavity; Concrete is poured into the first groove and compacted with a vibratory guide rod, so that the concrete fills the first groove of the precast structural component and fills the cavity through the through holes of the support ribs of the precast structural component, forming the bottom strip foundation and the top structural beam in one go.

[0014] Optionally, before placing the prefabricated structural member on the foundation, such that the second groove at the bottom of the prefabricated structural member encloses the foundation to form a cavity, the method further includes: The bottom of the foundation should be compacted and leveled; Horizontal and longitudinal steel bars are laid at the bottom of the compacted and leveled foundation and tied to form a steel mesh.

[0015] Optionally, the prefabricated structural component is placed on the foundation, such that the second groove at the bottom of the prefabricated structural component and the foundation enclose a cavity, including: Multiple prefabricated structural components are placed sequentially on the steel mesh of the foundation, so that the half holes at the edges of two adjacent prefabricated structural components are spliced ​​together to form a through hole; The prefabricated structural components are leveled according to the half-holes; A steel cage serving as the skeleton of the structural beam is set in the first groove of the prefabricated structural member, and dowel bars are reserved for connection with the columns and walls at the top of the composite foundation.

[0016] The beneficial technical effects of the technical solutions provided in this application include: In this embodiment, the prefabricated structural component has a first groove and a second groove that are connected. When the prefabricated structural component is hoisted into the foundation, the second groove can enclose the foundation to form a cavity. The opening of the first groove faces upward and can serve as a pouring port for concrete. This allows for the creation of a composite foundation by combining prefabrication and cast-in-place concrete, which reduces the weight of the prefabricated structural component, lowers the hoisting difficulty, and improves construction efficiency. Furthermore, the first groove allows for the pouring of concrete into the cavity, and the flowing concrete fills and compacts the first groove and the cavity, ensuring a tight bond between the cast-in-place concrete, the prefabricated structural component, and the foundation. This enhances the load-bearing capacity of the composite foundation, and the foundation surface can be leveled a second time during concrete pouring, creating conditions for subsequent superstructure construction. Moreover, the second groove is located at the center of the prefabricated structural component, ensuring a tighter bond between the cast-in-place concrete, the prefabricated structural component, and the foundation. This guarantees uniform stress distribution in the composite foundation and reduces the probability of uneven settlement and foundation deformation.

[0017] Furthermore, the second groove can serve as a template for the bottom strip foundation, and the first groove can serve as a template for the top structural beam. By casting the bottom strip foundation and the top structural beam in one go, the composite foundation of this application embodiment is formed, which can further improve construction efficiency.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 A top view of a prefabricated structural component provided in an embodiment of this application; Figure 2 A prefabricated structural member provided in the embodiments of this application is along Figure 1 A schematic diagram of the cross-sectional structure along the A-A' direction; Figure 3 This application provides a schematic diagram of the structure of a composite foundation before concrete pouring, as shown in the embodiments of the present application. Figure 4 for Figure 3 A schematic diagram of the side view structure in the middle; Figure 5 A schematic diagram of the installation structure of the upper and lower templates of the prefabricated structural component provided in the embodiments of this application; Figure 6 This is a schematic flowchart of a method for manufacturing an overlay foundation, as provided in an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures: 1-Foundation; 10 - Prefabricated structural components; 11-Supporting component; 111-Side rib; 1111-First guide slope; 112-Flank; 1121-Second guide ramp; 113-Outriggers; 12-Support rib; 121-Through hole; 122-Half hole; 13-First groove; 14-Second groove; 15-Cavity; 20 - Reinforcing cage; 21 - First reinforcing bar; 22 - Stirrup; 30 - Second reinforcing bar; 40 - Steel mesh; 41 - Horizontal reinforcement; 42 - Longitudinal reinforcement; 100 - Upper template; 200 - Lower template. Detailed Implementation

[0021] The embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions of the embodiments of this application.

[0022] Those skilled in the art will understand that, unless specifically stated otherwise, the terms "described" and "the" as used herein may also include plural forms. It should be further understood that the term "comprising" as used in the specification of this application means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude other features, information, data, steps, operations, elements, components, and / or combinations thereof supported by the art. The term "and / or" as used herein refers to at least one of the items defined by the term; for example, "A and / or B" can be implemented as "A," or as "B," or as "A and B."

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0024] In related technologies, building foundations that are cast in place on the construction site often have disadvantages such as long construction period, large use of formwork, large labor load and high cost.

[0025] While precast solid concrete foundations shorten the construction period, they have drawbacks such as excessive weight and difficulties in transportation and hoisting. Furthermore, during on-site construction, the bottom of the foundation is not perfectly level, which can lead to poor bonding between the foundation bottom and the foundation after the precast concrete foundation is lowered, resulting in voids that are difficult to fill. Under the load on the upper part of the foundation, this can easily cause uneven stress distribution, leading to uneven settlement and foundation deformation.

[0026] This application provides a precast structural component, a composite foundation, and a method for manufacturing the same, to solve the technical problems in related technologies where precast concrete foundations are too heavy, difficult to transport and hoist, and prone to having voids that are difficult to fill between the precast concrete foundation and the ground during construction.

[0027] Reference Figures 1-2 This application provides a prefabricated structural component, including an integrally formed support rib 12 and two support members 11.

[0028] The support rib 12 is disposed between two opposing support members 11. The prefabricated structural member 10 forms a first groove 13 with an opening facing the first end and a second groove 14 with an opening facing the second end. The support rib 12 is provided with a through hole 121 connecting the first groove 13 and the second groove 14.

[0029] The second groove 14 is configured to enclose the foundation 1 to form a cavity 15. The cavity 15 and the first groove 13 are configured to be filled with concrete. The first groove 13 is configured as a template for the structural beam.

[0030] In this embodiment, the precast structural member 10 has a first groove 13 and a second groove 14 that are connected. When the precast structural member 10 is hoisted into the foundation 1, the second groove 14 can enclose the foundation 1 to form a cavity 15. The opening of the first groove 13 faces upward and can serve as a pouring port for concrete. This allows for the manufacture of a composite foundation using a combination of precast and cast-in-place concrete, reducing the weight of the precast structural member 10, lowering the hoisting difficulty, and improving construction efficiency. Furthermore, concrete can be poured into the cavity 15 using the first groove 13. The flowing concrete can fill and compact the first groove 13 and the cavity 15, ensuring a tight bond between the cast-in-place concrete and the precast structural member 10 and the foundation 1, thereby enhancing the load-bearing capacity of the composite foundation. Additionally, the second groove 14 is located at the center of the precast structural member 10, further strengthening the bond between the cast-in-place concrete and the precast structural member 10 and the foundation 1, ensuring uniform stress distribution in the composite foundation, and reducing the probability of uneven settlement and foundation deformation.

[0031] Furthermore, the composite foundation of this application embodiment includes a strip foundation at the bottom and a structural beam at the top. The second groove 14 can serve as a template for the bottom strip foundation, and the first groove 13 can also serve as a template for the structural beam. By casting the bottom strip foundation and the top structural beam in one go, the structural beam of this application embodiment is formed, which can further improve construction efficiency.

[0032] Optionally, refer to Figures 1-3 The prefabricated structural component 10 extends along the first direction, and has multiple through holes 121, which are arranged at intervals along the first direction. The two support components 11 are arranged symmetrically along the vertical plane containing the first direction.

[0033] In this embodiment, the prefabricated structural component 10 is a long strip extending along the first direction, which can improve the construction efficiency of the composite foundation.

[0034] Furthermore, in this embodiment of the application, the two support members 11 are arranged symmetrically along the vertical plane containing the first direction, which enables the first groove 13 and the second groove 14 to also form a shape symmetrical with respect to the vertical plane containing the first direction. After concrete is poured into the first groove 13 and the second groove 14 to form a composite foundation, it can ensure that the composite foundation is subjected to uniform stress and improve the composite foundation's ability to resist deformation and uneven settlement.

[0035] Optionally, refer to Figure 2Each support member 11 includes a side rib 111, a side wing 112, and a leg 113. The support rib 12 is sandwiched between the side ribs 111 of the two support members 11, forming a first groove 13. The leg 113 is located outside the side rib 111 and is configured to contact the foundation 1. The side wing 112 connects the leg 113 and the side rib 111, and the legs 113, side wing 112, and support rib 12 of the two support members 11 together form a second groove 14.

[0036] In this embodiment, by setting the shape of the support member 11 and placing the support leg 113 on the outside of the side rib 111, the size of the second groove 14 can be expanded as much as possible. This can increase the size of the cavity 15 formed by the second groove 14 and the foundation 1. After the cavity 15 is filled with concrete, the contact area between the concrete and the foundation 1 can be increased, making the concrete and the foundation 1 tightly bonded. This makes the center of gravity of the composite foundation more stable and can improve the strength and stability of the composite foundation.

[0037] Furthermore, by maximizing the size of the second groove 14, the weight of the prefabricated structural component 10 can be reduced, thus lowering the difficulty of hoisting.

[0038] Optionally, refer to Figure 2 The side rib 111 extends along the vertical plane containing the first direction, and the inner wall surface of the side rib 111 is the first guide slope 1111. From the end away from the support rib 12 to the end closer to the support rib 12, the width of the first groove 13 gradually decreases.

[0039] In this embodiment, the inner wall surface of the side rib 111 is set as the first guide slope 1111, so that the first groove 13 forms a cup-shaped variable cross section that is wider at the top and narrower at the bottom. This allows the concrete to be guided by the first guide slope 1111 during concrete pouring, so that the concrete gathers on the support rib 12 and flows into the cavity 15 through the through hole 121.

[0040] In this embodiment, the outer wall surface of the side rib 111 is still a vertical surface. After the first groove 13 is filled with concrete, the side rib 111 together with the concrete structure in the first groove 13 forms a structural beam.

[0041] In related technologies, to prevent the adverse effects of uneven settlement or large vibration loads on the building caused by the foundation 1, reinforced concrete structural beams or reinforced brick structural beams are generally installed in the walls to enhance the overall rigidity of the brick and stone structure. Currently, structural beams are generally manufactured on top of the foundation after the foundation is manufactured. In this embodiment, by pre-designing the structure of the prefabricated structural component 10, a first groove 13 can be reserved in advance on the top of the foundation as space for the structural beam. This allows the side rib 111 (or the first groove 13) to serve as a template for the structural beam, enabling the foundation and structural beam to be formed in one pour, thus forming the composite foundation of this embodiment.

[0042] Optionally, refer to Figure 2 The outrigger 113 is located below the side rib 111, and the side wing 112 is obliquely arranged between the side rib 111 and the outrigger 113.

[0043] From the side closest to the side rib 111 to the side furthest from the side rib 111, the wall thickness of the side wing 112 gradually decreases, and the inner wall surface of the side wing 112 forms a second guide slope 1121.

[0044] In this embodiment, by placing the support leg 113 on the lower side of the side rib 111, the side wing 112 is arranged at an angle, thereby forming a second guide slope 1121 on the inner wall surface of the side wing 112. When concrete is poured into the cavity 15 through the first groove 13, the second guide slope 1121 can guide the concrete flowing into the cavity 15, causing the concrete to flow to both sides of the cavity 15, that is, to flow along the second guide slope 1121 towards the two side edges near the support leg 113, so that the two sides of the cavity 15 are filled densely, thereby ensuring that the composite foundation of this application is tightly integrated with the foundation 1, improving the overall rigidity and load transfer efficiency of the composite foundation, and thus improving the composite foundation's resistance to deformation and uneven settlement.

[0045] Furthermore, in this embodiment, the wall thickness of the side wing 112 gradually decreases from the side closest to the side rib 111 to the side furthest from the side rib 111. This allows the side wing 112 to form a variable cross-section in the vertical plane in the second direction. Compared to the cavity 15 formed by using a conventional side wing 112 with a uniform cross-sectional thickness, this increases the volume of the cavity 15. More precisely, this embodiment increases the volume near the edge of the support leg 113, thereby allowing more concrete to be accommodated at the edges on both sides, ensuring a tight bond between the composite foundation and the foundation 1.

[0046] Moreover, since the edge areas of the composite foundation bear large shear forces and bending moments, fully filling the two sides of the cavity 15 with concrete can ensure that these critical areas effectively participate in the stress and prevent stress concentration or cracking due to the lack of concrete.

[0047] In this embodiment of the application, the second direction is coplanar with the first direction, and the second direction is perpendicular to the first direction.

[0048] Optionally, refer to Figure 1 The support rib 12 has half-holes 122 at both ends along the first direction, and the half-holes 122 connect between the first groove 13 and the second groove 14. At least two prefabricated structural members 10 are configured to be spliced ​​along the first direction, such that the two half-holes 122 are spliced ​​together to form a through hole 121.

[0049] In this embodiment, both the first groove 13 and the second groove 14 are through grooves that communicate with the outside at both ends. By opening half holes 122 at both ends of the support rib 12, when multiple prefabricated structural components 10 are spliced, adjacent half holes 122 are spliced ​​to form a through hole 121. This allows concrete to flow through the through hole 121 formed by splicing two half holes 122 into the cavity 15 at the bottom of the connection between the two prefabricated structural components 10, ensuring that the concrete is densely filled at the bottom, thereby ensuring that the formed composite foundation is tightly bonded to the foundation 1.

[0050] Moreover, by opening half holes 122 at both ends of the support rib 12, the levelness of multiple prefabricated structural components 10 along the first direction can be adjusted by means of the two half holes 122 when splicing the prefabricated structural components 10.

[0051] Optionally, if the through hole 121 can be a round hole, then the half hole 122 can be a semi-circular hole. The through hole 121 can also be a square hole, a polygonal hole, an irregular hole, or a hole of any shape. This application does not impose specific limitations, but only uses the example of the through hole 121 being a round hole and the half hole 122 being a semi-circular hole for illustration.

[0052] It should be noted that in this embodiment, the first direction refers to the length direction of the prefabricated structural component 10, which can also be understood as the extension direction of the first groove 13 and the second groove 14. Therefore, on the construction site, the first direction will change according to the placement direction of the prefabricated structural component 10, rather than being a fixed direction. During on-site construction, multiple prefabricated structural components 10 are placed according to design requirements, for example, so that multiple prefabricated structural components 10 form a square. After pouring concrete, the top of the foundation can form a square structural beam. This structural beam can then serve as the ring beam of the building, improving the construction efficiency of the building.

[0053] Based on the same inventive concept, referring to Figure 5 This application also discloses a method for manufacturing a prefabricated structural component, comprising the following steps: S1: Prefabricate the upper template 100 and the lower template 200. Apply a release agent to the lower template 200 and the upper template 100 of the prefabricated structural component 10, and then connect them together as required using connectors.

[0054] Optionally, the upper template 100 and the lower template 200 can be positioned using tooling fixtures.

[0055] S2: Pour concrete into the cavity formed by the upper formwork 100 and the lower formwork 200 and vibrate it to make it dense.

[0056] Optionally, concrete can be poured in reverse, with the top surface of the precast structural component 10 facing upwards. This pouring method facilitates demolding and can improve the manufacturing efficiency of the precast structural component 10.

[0057] S3: After the concrete reaches the design strength, first remove the upper formwork 100, then use a crane to remove the precast structural component 10 from the lower formwork 200, rotate it 180 degrees, and hoist it into the storage yard for later use.

[0058] In this embodiment of the application, by designing the first groove 13 of the prefabricated structural component 10 as a cup-shaped variable cross-section with a larger top and a smaller bottom, it is also easy to demold, thereby improving the manufacturing efficiency of the prefabricated structural component 10.

[0059] Reference Figures 3-4 Based on the same inventive concept, this application also provides a composite foundation, including the prefabricated structural member 10 described in the above embodiments, and also including concrete. The concrete fills the first groove 13 at the top of the prefabricated structural member 10, and the cavity 15 formed by the second groove 14 at the bottom of the prefabricated structural member 10 and the foundation 1.

[0060] Composite foundations consist of strip foundations at the bottom and structural beams at the top.

[0061] Optionally, refer to Figure 3 The composite foundation of this application embodiment also includes a second reinforcing bar 30, which is connected between the two support legs 113.

[0062] In this embodiment of the application, by setting a second steel bar 30 fixed between the two legs 113, it is possible to resist the horizontal thrust of the two legs 113 separating outward, thereby improving the structural strength and structural stability of the composite foundation.

[0063] Optionally, there may be multiple second reinforcing bars 30, which are arranged at intervals along the length direction (i.e., the first direction) of the precast structural member 10. The spacing between two adjacent second reinforcing bars 30 ranges from 200 mm to 1000 mm.

[0064] Optionally, the second reinforcing bar 30 is arranged horizontally, that is, parallel to the horizontal plane and parallel to the second direction. Optionally, the second reinforcing bar 30 is staggered from the through hole 121, thereby avoiding interference between the second reinforcing bar 30 and the concrete when using a vibrator to vibrate the concrete based on the through hole 121.

[0065] Optionally, during the manufacturing of the precast structural member 10, a joint can be pre-embedded at the corresponding position of the support leg 113. By connecting both ends of the second reinforcing bar 30 to the pre-embedded joint, the second reinforcing bar 30 can be fixedly connected to the precast structural member 10. Alternatively, tension can be applied to the second reinforcing bar 30 first, and then concrete can be poured. Once the concrete strength reaches the required level, the second reinforcing bar 30 can be released to allow it to retract.

[0066] The embodiments of this application can use the second reinforcing bar 30 to pull the two legs 113 inward, thereby resisting splitting caused by uneven settlement or deformation of the foundation.

[0067] Optionally, the second reinforcing bar in this application is a prestressed reinforcing bar, specifically a tension reinforcing bar.

[0068] Optionally, refer to Figure 3 The composite foundation in this embodiment also includes a reinforcing cage 20, which is disposed within and extends along the first groove 13. The reinforcing cage 20 can serve as the skeleton of a structural beam, and after the first groove 13 is filled with concrete, a reinforced concrete structural beam can be formed.

[0069] Optionally, the composite foundation in this embodiment further includes a reinforcing mesh 40 disposed within the cavity 15. The reinforcing mesh 40 includes staggered transverse reinforcing bars 41 and longitudinal reinforcing bars 42. After the cavity 15 is filled with concrete, the reinforcing mesh 40 improves the mechanical properties of the concrete structure and prevents cracks from forming in the concrete structure.

[0070] Based on the same inventive concept, referring to Figure 6 This application also provides a method for manufacturing a composite foundation, comprising the following steps: S101: Place the prefabricated structural component 10 on the foundation 1, so that the second groove 14 at the bottom of the prefabricated structural component 10 and the foundation 1 enclose to form a cavity 15.

[0071] In this embodiment of the application, according to the construction requirements, a crane is used to place multiple prefabricated structural components 10 on the foundation 1 in sequence. The multiple prefabricated structural components 10 are spliced ​​together according to the design requirements. The multiple first grooves 13 after splicing are connected, and the multiple cavities 15 after splicing are all connected.

[0072] S102: Pour concrete into the first groove 13 and compact it with a vibratory guide rod so that the concrete fills the first groove 13 and fills the cavity 15 through the through hole 121, forming the bottom strip foundation and the top structural beam in one go.

[0073] During construction, the construction workers use a vibrator to pass through the through hole and continuously vibrate the concrete in the cavity 15 and the first groove 13, so that the concrete is tightly bonded to the foundation 1 and the precast structural component 10, so that the composite foundation of this application embodiment can achieve the same stress performance as the cast-in-place concrete foundation.

[0074] In this embodiment, the composite foundation can be manufactured using a combination of precast and cast-in-place concrete. This reduces the weight of the precast structural component 10, lowers the difficulty of hoisting, and improves construction efficiency. Furthermore, the first groove 13 allows for the pouring of concrete into the cavity 15, filling and compacting both the first groove 13 and the cavity 15. This ensures a tight bond between the cast-in-place concrete and the precast structural component 10 and the foundation 1, enhancing the load-bearing capacity of the composite foundation. The surface of the foundation 1 can be leveled a second time during concrete pouring, creating conditions for subsequent superstructure construction. Moreover, the second groove 14, located at the center of the precast structural component 10, ensures a tighter bond between the cast-in-place concrete and the precast structural component 10 and the foundation 1, preventing unfilled voids between the foundation and the foundation. This guarantees uniform stress distribution in the composite foundation and reduces the probability of uneven settlement and foundation deformation.

[0075] In this embodiment, the second groove 14 can serve as a template for the bottom strip foundation, and the first groove 13 can also serve as a template for the structural beam. This embodiment can form the bottom strip foundation and the top structural beam in one pour, which can further improve construction efficiency.

[0076] Optionally, before step S101: placing the prefabricated structural member 10 on the foundation 1, such that the second groove 14 at the bottom of the prefabricated structural member 10 and the foundation 1 enclose the cavity 15, the method further includes: The bottom of foundation 1 should be compacted and leveled.

[0077] Horizontal steel bars 41 and longitudinal steel bars 42 are laid at the bottom of the compacted and leveled foundation 1 and tied to form a steel mesh 40.

[0078] In this embodiment, after the bottom of the foundation 1 is compacted and leveled, transverse steel bars 41 and longitudinal steel bars 42 are laid according to the design requirements, with sufficient protective layer for the steel bars. During laying, the longitudinal steel bars 42 are ensured to be continuous to ensure that the resulting composite foundation is tightly bonded to the foundation 1.

[0079] Optionally, step S101: placing the prefabricated structural member 10 on the foundation 1, such that the second groove 14 at the bottom of the prefabricated structural member 10 and the foundation 1 enclose a cavity 15, including: Multiple prefabricated structural components 10 are placed sequentially on the steel mesh 40 of the foundation 1, so that the half-holes 122 on the edges of two adjacent prefabricated structural components 10 are spliced ​​together to form a through hole 121. At this time, the support leg 113 is in contact with the foundation 1, so that the steel mesh 40 is hidden in the cavity 15 formed by the second groove 14 and the foundation 1.

[0080] Next, the multiple prefabricated structural components 10 are leveled according to the half hole 122.

[0081] Next, a steel cage 20, which serves as the skeleton of the structural beam, is set in the first groove 13 of the prefabricated structural member 10, and dowel bars are reserved for connection with the columns and walls at the top of the composite foundation.

[0082] Optionally, 2 to 8 first steel bars 21 and stirrups 22 are laid in the first groove 13 to form a steel cage 20. The steel cage 20 can serve as the skeleton of the structural beam. After the first groove 13 is filled with concrete, a reinforced concrete structural beam can be formed to improve the structural strength of the structural beam.

[0083] In related technologies, precast concrete foundations are pre-embedded with upper and lower reinforcing bars. After the precast concrete reinforcing bars are spliced, the upper and lower reinforcing bars at the joint are tied separately to form a whole. Therefore, the upper and lower reinforcing bars in the whole made of precast concrete foundations are not continuous, which will result in lower structural strength and poor structural stability at the joint.

[0084] In contrast, in this embodiment, multiple elongated prefabricated structural components 10 are prefabricated. During construction, a steel mesh 40 is first laid in the foundation 1, and then the multiple prefabricated structural components 10 are placed according to design requirements and spliced ​​along the first direction, so that the steel mesh 40 is located in the cavity 15. Then, a steel cage 20 is laid in the first groove 13, and finally, concrete is poured all at once, thus forming the bottom strip foundation and the top structural beam in one go, forming the composite foundation of the above embodiment. Since the steel cage 20 in the first groove 13 and the steel mesh 40 in the bottom cavity 15 are both laid on-site, the steel cage 20 and the steel mesh 40 can be made continuous, allowing the multiple prefabricated structural components 10 to form a whole after the concrete is poured. Compared with the prefabricated concrete foundations in the prior art, this embodiment can effectively improve the overall structural strength and structural stability, thereby achieving the same stress effect as cast-in-place foundations.

[0085] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate directions or positional relationships based on the exemplary directions or positional relationships shown in the accompanying drawings. They are used to facilitate the description or simplification of the embodiments of this application and are not intended to indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0086] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0087] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0088] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0089] The above description is only a partial implementation of this application. It should be noted that for those skilled in the art, other similar implementation methods based on the technical concept of this application, without departing from the technical concept of this application, also fall within the protection scope of the embodiments of this application.

Claims

1. A prefabricated structural component, characterized in that, It includes a one-piece molded support rib and two support members; The support rib is disposed between two opposing support members. The prefabricated structural member forms a first groove with an opening facing the first end and a second groove with an opening facing the second end. The support rib is provided with a through hole connecting the first groove and the second groove. The second groove is configured to enclose the foundation to form a cavity, and the cavity and the first groove are configured to be filled with concrete. The first groove is configured to serve as a template for the structural beam.

2. The prefabricated structural component according to claim 1, characterized in that, The prefabricated structural component extends along a first direction, and there are multiple through holes, which are arranged at intervals along the first direction. The two support members are arranged symmetrically along the vertical plane containing the first direction.

3. The prefabricated structural component according to claim 2, characterized in that, The supporting components all include side ribs, side wings, and legs; The support rib is sandwiched between the side ribs of the two support members, forming the first groove; The outrigger is located on the outside of the side rib and is configured to contact the foundation; The side wing connects between the support leg and the side rib, and the support legs and side wing of the two support members and the support rib enclose to form the second groove.

4. The prefabricated structural component according to claim 3, characterized in that, The side rib extends along the vertical plane containing the first direction, and the inner wall surface of the side rib is a first guide slope; the width of the first groove gradually decreases from the end away from the support rib to the end closer to the support rib.

5. The prefabricated structural component according to claim 4, characterized in that, The outrigger is located below the side rib, and the side wing is obliquely arranged between the side rib and the outrigger; From the side closest to the side rib to the side furthest from the side rib, the wall thickness of the side wing gradually decreases, and the inner wall surface of the side wing forms a second guide slope.

6. The prefabricated structural component according to claim 2, characterized in that, The support rib has half-holes at both ends along the first direction, and the half-holes are connected between the first groove and the second groove. At least two of the prefabricated structural members are configured to be spliced ​​along a first direction, such that the two half-holes are spliced ​​together to form the through hole.

7. A composite foundation, characterized in that, Including the prefabricated structural member as described in any one of claims 1-6, wherein the top of the prefabricated structural member has a first groove and the bottom has a second groove that encloses the foundation to form a cavity, and further comprising: Concrete filling the first groove and the cavity; The composite foundation includes a strip foundation at the bottom and a structural beam at the top.

8. The composite foundation according to claim 7, characterized in that, Also includes: The second reinforcing bar is connected between the two legs of the precast structural member; A reinforcing cage is disposed within the first groove and extends along the first groove; A reinforcing mesh, which is set inside the cavity, includes staggered transverse and longitudinal reinforcing bars.

9. A manufacturing method applied to a composite foundation as described in any one of claims 7-8, characterized in that, Includes the following steps: The prefabricated structural component is placed on the foundation, such that the second groove at the bottom of the prefabricated structural component is enclosed by the foundation to form a cavity; Concrete is poured into the first groove and compacted with a vibratory guide rod, so that the concrete fills the first groove of the precast structural component and fills the cavity through the through holes of the support ribs of the precast structural component, forming the bottom strip foundation and the top structural beam in one go.

10. The manufacturing method according to claim 9, characterized in that, Before placing the prefabricated structural component on the foundation, such that the second groove at the bottom of the prefabricated structural component encloses the foundation to form a cavity, the method further includes: The bottom of the foundation should be compacted and leveled; Horizontal and longitudinal steel bars are laid at the bottom of the compacted and leveled foundation and tied to form a steel mesh.

11. The manufacturing method according to claim 10, characterized in that, Placing the prefabricated structural component on the foundation, such that the second groove at the bottom of the prefabricated structural component and the foundation enclose a cavity, includes: Multiple prefabricated structural components are placed sequentially on the steel mesh of the foundation, so that the half holes at the edges of two adjacent prefabricated structural components are spliced ​​together to form a through hole; The prefabricated structural components are leveled according to the half-holes; A steel cage serving as the skeleton of the structural beam is set in the first groove of the prefabricated structural member, and dowel bars are reserved for connection with the columns and walls at the top of the composite foundation.

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