Fabricated building structure and construction method
By introducing the design of bases, prefabricated walls, limit blocks and spreading components in the prefabricated building, combining the coordination between the guide grooves and the guide blocks and the fixed connection of the concrete, the problems of inconvenience in installation and unstable connection of the prefabricated building structure are solved, and efficient and stable building connections are achieved.
Patent Information
- Application Number
- CN202510568019.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2025-07-11
AI Technical Summary
The existing prefabricated building structures have poor accuracy during on-site assembly, unstable connections, inconvenient installation, and difficult to adapt to complex geological conditions.
The design of components such as base, prefabricated wall, limit block, stretching components and grouting grooves is adopted. Through the coordination of the guide groove and the guide block, the stretching components are used to reduce the friction between the limit block and the connecting groove, and the concrete is injected to fix the connection. The extension blocks of the prefabricated wall are dislocated and engaging to form a occlusion structure to enhance the connection stability.
It improves the installation efficiency and overall structural stability of prefabricated buildings, enhances the stability and seismic resistance of connections, simplifies the installation process, and reduces labor costs.
Smart Images
Figure CN120291630A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of construction engineering, and particularly relates to a prefabricated building structure and a construction method thereof. Background Art
[0002] A prefabricated building refers to a building in which a large amount of on-site work in the traditional construction method is transferred to a factory. Building components and fittings (such as floor slabs, wall panels, stairs, balconies, etc.) are processed and manufactured in the factory and transported to the construction site, and then assembled and installed on-site through reliable connection methods. Prefabricated buildings mainly include precast prefabricated concrete structures, steel structures, modern timber structures, etc. Because they adopt standardized design, factory production, assembly construction, information management, and intelligent application, they are representatives of modern industrial production methods.
[0003] Currently, the on-site assembly accuracy of existing prefabricated building structures is poor, and it is difficult to adapt to complex geological conditions; when assembling and splicing, the connection between walls is unstable and the installation is not convenient. Summary of the Invention
[0004] In order to improve the problems of unstable installation and inconvenient installation of prefabricated building structures, this application provides a prefabricated building structure and a construction method thereof.
[0005] A prefabricated building structure and a construction method provided by this application adopt the following technical solutions:
[0006] A prefabricated building structure includes a base, and a connection groove is formed in the base;
[0007] A precast wall, the bottom end of which is arranged in the connection groove;
[0008] Two limiting blocks are slidably arranged on both sides of the bottom end of the precast wall and are clamped in the connection groove;
[0009] A spreading component is arranged between the limiting blocks on both sides of the precast wall and is used to drive the limiting blocks to move towards both sides. The spreading component includes a support column, a first rod, and a second rod. One end of the support column is hinged to the ends of the first rod and the second rod respectively, and the free ends of the first rod and the second rod are respectively rotatably connected to the limiting blocks on both sides;
[0010] Wherein, a grouting groove is arranged at the bottom end of the precast wall, a plurality of grouting ports communicating with the grouting groove are formed on the wall surface of the precast wall, a plurality of guiding grooves are formed on both sides of the bottom end of the precast wall, a plurality of guiding blocks are arranged on the side of the limiting block, and the guiding blocks are slidably matched with the guiding grooves; accommodating grooves for placing the limiting blocks are arranged on both sides of the bottom end of the precast wall.
[0011] By adopting the above technical solution, first, the base is horizontally fixed on the ground. Through the cooperation of the guide groove and the guide block, the limit blocks are installed on both sides of the bottom end of the precast wall. Under the action of gravity, the limit blocks on both sides slide downward along the guide groove and move closer to each other, so that the limit blocks are embedded in the receiving groove, reducing the distance between the limit blocks and thus reducing the opening size of the connecting groove. In the link of installing the precast wall panel, the precast wall moves downward in the connecting groove. First, the support rod contacts the bottom of the connecting groove and generates an upward thrust, so that the opening degrees of the first support rod and the second support rod increase. The first support rod and the second support rod generate a thrust on the limit blocks on both sides, preventing the limit blocks from directly contacting the connecting groove, effectively reducing the friction between the limit blocks and the inner wall of the connecting groove, and facilitating the installation of the precast wall. The precast wall is fixed in the connecting groove of the base by the clamping connection of the limit blocks and solidified by injecting concrete, thus ensuring the stability of the building structure.
[0012] Optionally, a buried part is arranged at the bottom of the connecting groove, a connecting hole is arranged at the bottom end of the precast wall, a through hole communicating with the connecting hole is arranged on the inner wall of the grouting groove, and the buried part is placed in the connecting hole.
[0013] By adopting the above technical solution, when injecting concrete, the concrete enters the connecting hole from the through hole, connecting the reserved connecting piece with the precast wall, so that the precast wall and the base can effectively transfer loads, jointly bear the weight and external forces of the building, and improve the integrity and stability of the entire building structure.
[0014] Optionally, a plurality of extension blocks are arranged on both sides of the precast wall, and the extension blocks on both sides of the precast wall are arranged in a staggered manner; the extension blocks are provided with fixing holes. Among them, when two precast walls are spliced, the fixing holes on the extension blocks form a channel for placing column steel bars and pouring concrete.
[0015] By adopting the above technical solution, the extension blocks on both sides of the precast wall are arranged in a staggered manner. When two precast walls are spliced, the extension blocks on both sides are staggered and clamped, forming a structure similar to an occlusion, providing a preliminary positioning and constraint for the two precast walls in the horizontal direction at the splicing position, restricting the relative horizontal displacement between the walls, and increasing the stability of the structure; the fixing holes on the extension blocks are connected to form a channel. After placing the column steel bars and pouring concrete, the reinforced concrete column tightly connects the two precast walls in the vertical direction, can effectively transfer vertical loads and horizontal shear forces, connects the precast walls into a whole, jointly bears external forces, and improves the stability of the connection.
[0016] Optionally, inclined surfaces are arranged at both ends of the fixing hole of the extension block.
[0017] By adopting the above technical solution, when two prefabricated wall panels are spliced together, an outward-expanding cavity is formed at the joint of the extension block. After the concrete is injected and solidified, the connection strength between the prefabricated walls is enhanced, thereby improving the overall stability and seismic resistance of the structure.
[0018] Optionally, a plurality of connecting grooves are provided between the grouting groove and the containing groove.
[0019] By adopting the above technical solution, when installing the prefabricated wall panels, the limit blocks move to both sides along the guide grooves, the limit blocks are clamped in the connecting grooves, and a gap is generated between the limit blocks and the prefabricated wall. When injecting concrete, the concrete is injected into the grouting groove from the grouting port and enters the gap between the limit blocks and the prefabricated wall through the connecting groove. The filling of concrete enables the limit blocks, the prefabricated wall and the base to form an integral structure, which can work together when subjected to force, thereby enhancing the integrity and seismic resistance of the entire structure.
[0020] Optionally, there is an inclination angle between the plane where the bottom of the guide groove is located and the plane where the prefabricated wall is located, and the inclination angle is set to 30-60°.
[0021] By adopting the above technical solution, when installing the prefabricated wall, the guide groove is inclined so that the prefabricated wall generates a horizontal component of force on the limit block during the downward movement, so that the limit block is clamped in the connecting groove. No additional positioning device or complicated operation is required to align the limit block and the connecting groove, which greatly simplifies the installation process, improves the installation efficiency, and reduces labor costs and construction difficulty. The inclined guide groove can optimize the clamping effect of the limit block by adjusting the inclination angle according to the different prefabricated wall weights, sizes and specific conditions of the construction site.
[0022] Optionally, a plurality of sinking grooves are provided at the top of the prefabricated wall, and hanging rings are provided in the sinking grooves.
[0023] By adopting the above technical solution, by setting the lifting ring, it is convenient for lifting and installation. The lifting ring serves as the lifting fulcrum, and in combination with the lifting equipment, it can realize the convenient lifting and precise positioning and installation of the prefabricated wall, greatly improving the construction efficiency; the sink trough design makes the lifting ring flush with or slightly lower than the wall surface, avoiding direct friction and collision between the lifting equipment and the wall during the lifting process, which not only protects the integrity of the wall appearance, but also reduces the wear of the lifting equipment and extends its service life.
[0024] A construction method for an assembled building structure comprises the following steps:
[0025] S1. First, fix the base on a horizontal plane;
[0026] S2, install the limit blocks on both sides of the bottom end of the prefabricated wall, and install the expansion assembly, and connect the free ends of the support rod 1 and the support rod 2 to the limit blocks;
[0027] S3, using a lifting device fixed on the lifting ring to lift the prefabricated wall, and place it in the connecting groove on the base, the limit block moves to both sides under the action of the support assembly and the prefabricated wall, and is engaged with the connecting groove;
[0028] S4, inject concrete into the grouting groove through the grouting port, the concrete enters the connecting hole through the through hole, the prefabricated wall and the embedded parts are fixedly connected, and the concrete fills the gap between the limit block and the prefabricated wall through the connecting groove, so that the base, the prefabricated wall and the limit block form a whole;
[0029] S5. When two prefabricated walls are joined together, the extension blocks on both sides are interlaced, and the prefabricated column reinforcement is placed in the channel formed by the fixed holes on the limit blocks, and concrete is injected to solidify.
[0030] In summary, the present application includes at least one of the following beneficial technical effects:
[0031] 1. The guide groove cooperates with the guide block, so that the limit block can be accurately installed on both sides of the bottom of the prefabricated wall and smoothly slide into the connecting groove. The accommodating groove can reduce the spacing between the limit blocks, thereby reducing the opening size of the connecting groove, which is convenient for installation; the support assembly is linked by the support column, support rod 1 and support rod 2. When the prefabricated wall moves down, it can drive the limit block to move to both sides to avoid direct contact with the connecting groove, effectively reduce friction, and ensure smooth installation; the grouting groove and grouting port design of the prefabricated wall are convenient for injecting concrete, enhancing the stability of the connection between the prefabricated wall and the base, and improving the strength and reliability of the overall structure;
[0032] 2. During the concrete pouring process, the concrete flows into the connection holes through the channels, firmly combining the embedded parts with the prefabricated wall. This connection method enables the prefabricated wall and the base to form a coordinated force system, and the weight of the building structure and external loads can be efficiently transferred between the two, thereby significantly improving the integrity and stability of the building structure;
[0033] 3. The extension blocks on both sides of the prefabricated wall are arranged in a staggered manner. When two prefabricated walls are spliced, the extension blocks are interlocked to form a stable structure similar to a bite. This design can achieve precise positioning and effective constraints on the prefabricated walls in the horizontal direction, greatly limiting the relative horizontal displacement between the walls and significantly improving the overall stability of the structure. At the same time, the fixing holes on the extension blocks are interconnected to form a casting channel after splicing. After inserting the column steel bars and pouring concrete, the reinforced concrete columns are like a strong "bond" to firmly connect the two prefabricated walls in the vertical direction. It can not only efficiently transmit vertical loads, but also effectively resist horizontal shear forces, so that the prefabricated walls are closely combined into a unified whole, and work together to cope with various external forces, greatly enhancing the stability and reliability of the wall connection parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] Figure 1 It is a structural schematic diagram of the prefabricated building structure of this application.
[0035] Figure 2 It is an exploded view of the prefabricated building structure of this application.
[0036] Figure 3 It is an exploded view of the prefabricated building structure of this application.
[0037] Figure 4 It is a cross-sectional view of the prefabricated building structure of the present application.
[0038] Figure 5 yes Figure 3 Enlarged view of part A in the middle.
[0039] Figure 6 It is a structural schematic diagram of the prefabricated wall splicing of this application.
[0040] Reference numerals: 1, base; 11, connection groove; 12, embedded part; 2, prefabricated wall; 21, grouting groove; 22, guide groove; 23, connecting groove; 24, receiving groove; 25, extension block; 251, fixing hole; 252, inclined surface; 26, grouting port; 27, connection hole; 28, through hole; 29, sinking groove; 3, limit block; 31, guide block; 4, support assembly; 41, support column; 42, support rod 1; 43, support rod 2; 5, lifting ring. DETAILED DESCRIPTION
[0041] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings.
[0042] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0043] The present application embodiment discloses an assembled building structure, referring to Figures 1-4, including a base 1, a prefabricated wall 2, a limit block 3 and a support assembly 4. A connection groove 11 is provided on the base 1, and the cross section of the connection groove 11 is a dovetail structure; the bottom end of the prefabricated wall 2 is placed in the connection groove 11; there are two limit blocks 3, which are slidably connected to the two sides of the bottom end of the prefabricated wall 2, and when installed, the limit blocks 3 move to both sides and are clamped in the connection groove 11; the support assembly 4 is located between the limit blocks 3 on both sides of the prefabricated wall 2, and is used to drive the limit blocks 3 to move to both sides. The support assembly 4 includes a support column 41, a support rod 1 42 and a support rod 2 43, one end of the support column 41 is hingedly connected to the ends of the support rod 1 42 and the support rod 2 43, and the free ends of the support rod 1 42 and the support rod 2 43 are respectively rotatably connected to the limit blocks 3 on both sides.
[0044] A grouting groove 21 is provided at the bottom end of the prefabricated wall 2, and the grouting groove 21 extends along the length direction of the bottom end of the prefabricated wall 2. A plurality of grouting ports 26 connected to the grouting groove 21 are provided on the wall surface of the prefabricated wall 2 to realize multi-point grouting and ensure uniform grouting; a plurality of guide grooves 22 are symmetrically provided on both sides of the bottom end of the prefabricated wall 2, and the guide grooves 22 are evenly distributed on the prefabricated wall 2, and the cross-section of the guide groove 22 is a T-shaped structure, and a plurality of guide blocks 31 matching the guide grooves 22 are provided on the side of the limit block 3, and the guide blocks 31 slide in cooperation with the guide grooves 22.
[0045] Accommodating grooves 24 for embedding the limiting blocks 3 are symmetrically arranged on both sides of the bottom end of the prefabricated wall 2 to reduce the distance between the limiting blocks 3 on both sides.
[0046] Reference Figure 2 and Figure 5 A plurality of embedded parts 12 are pre-set at the bottom of the connection groove 11 during production, and the embedded parts 12 are steel bars; a connection hole 27 for accommodating the embedded parts 12 is opened at the bottom of the prefabricated wall 2, and a through hole 28 connected to the connection hole 27 is opened on the inner wall of the grouting groove 21. After the embedded parts 12 are placed in the connection hole 27, concrete is injected into the connection hole 27 from the through hole 28. After the concrete solidifies, the prefabricated wall 2 and the base 1 are fixedly connected as a whole.
[0047] Reference Figure 1 and Figure 6 A plurality of extension blocks 25 extend outwardly from both sides of the prefabricated wall 2, and the extension blocks 25 located on both sides of the prefabricated wall 2 are staggered; the extension blocks 25 are vertically penetrated with fixing holes 251, wherein, when two prefabricated walls 2 are spliced, the fixing holes 251 on the extension blocks 25 form a channel, and the channel is used to place column reinforcement and pour concrete.
[0048] The two ends of the extension block 25 located at the through hole 28 are inclined surfaces 252. After the two prefabricated wall panels are spliced, the splicing part of the extension block 25 forms an outward-expanding cavity, which enhances the connection strength between the prefabricated walls 2 after the injected concrete solidifies.
[0049] Reference Figure 2 and Figure 3 A plurality of connecting grooves 23 are provided between the grouting groove 21 and the receiving groove 24 , and the plurality of connecting grooves 23 are located between the guide grooves 22 , that is, the connecting grooves 23 and the guide grooves 22 are alternately arranged.
[0050] There is an inclination angle between the plane where the bottom of the guide groove 22 is located and the plane where the prefabricated wall 2 is located, and the inclination angle is set to 30-60°. When installing the prefabricated wall 2, the guide groove 22 is set to be inclined, so that the prefabricated wall 2 generates a horizontal component force on the limit block 3 during the downward movement, so that the limit block 3 is clamped in the connecting groove 11, and no additional positioning device or complicated operation is required to align the limit block 3 and the connecting groove 11, which simplifies the installation process, improves the installation efficiency, and reduces the labor cost and construction difficulty; the inclined guide groove 22 can optimize the clamping effect of the limit block 3 by adjusting the inclination angle according to the different weights and sizes of the prefabricated walls 2 and the specific conditions of the construction site.
[0051] Two sinking grooves 29 are symmetrically arranged at the top of the prefabricated wall 2, and a lifting ring 5 is fixedly connected in the sinking groove 29, so that the prefabricated wall 2 can be lifted by a lifting device conveniently.
[0052] A construction method for an assembled building structure comprises the following steps:
[0053] S1. First, fix the base 1 on a horizontal plane;
[0054] S2, install the limit blocks 3 on both sides of the bottom end of the prefabricated wall 2, and install the expansion assembly 4, and connect the free ends of the support rod 1 42 and the support rod 2 43 to the limit blocks 3;
[0055] S3, using a lifting device fixed on the lifting ring 5 to lift the prefabricated wall 2, and place it in the connecting groove 11 on the base 1, the limit block 3 moves to both sides under the action of the support assembly 4 and the prefabricated wall 2, and is engaged with the connecting groove 11;
[0056] S4, inject concrete into the grouting groove 21 through the grouting port 26, the concrete enters the connecting hole 27 through the through hole 28, the prefabricated wall 2 and the embedded part 12 are fixedly connected, and the concrete fills the gap between the limit block 3 and the prefabricated wall 2 through the connecting groove 23, so that the base 1, the prefabricated wall 2 and the limit block 3 form a whole;
[0057] S5. When two prefabricated walls 2 are spliced, the extension blocks 25 on both sides are interlaced and engaged, and the prefabricated column reinforcement is placed in the channel formed by the fixing holes 251 on the limiting blocks 3, and concrete is injected to solidify.
[0058] The implementation principle of an assembled building structure and a construction method in an embodiment of the present application is as follows: during the construction of the assembled building structure, the base 1 is first fixed, and the limit blocks 3 are accurately installed on both sides of the bottom end of the prefabricated wall 2 through the precise cooperation of the guide groove 22 and the guide block 31, and are slid along the guide groove 22 to be inserted into the connecting groove 11 of the base 1; during the downward movement of the prefabricated wall 2, the support rod first contacts the bottom of the connecting groove 11, and the support column 41, support rod 1 42 and support rod 2 43 of the support assembly 4 are linked to drive the limit blocks 3 to move to both sides to avoid direct contact with the inner wall of the connecting groove 11, reduce friction, and ensure smooth installation. During grouting, concrete is injected into the grouting groove 21 from the grouting port 26 on the prefabricated wall 2, and at the same time, the concrete flows into the connecting hole 27 through the through hole 28, firmly combining the embedded part 12 with the prefabricated wall 2, and the concrete enters the gap between the limit block 3 and the prefabricated wall 2 through the connecting groove 23. The filling of concrete makes the limit block 3, the prefabricated wall 2 and the base 1 form an integral structure, so that the limit block 3, the prefabricated wall 2 and the base 1 form a coordinated force system, realizing efficient load transfer.
[0059] When the prefabricated wall 2 is spliced, the extension blocks 25 arranged in a staggered manner on both sides are interlocked with each other to form a bite structure, which realizes precise positioning and constraint in the horizontal direction. After the fixing holes 251 on the extension blocks 25 are penetrated, the column steel bars are inserted and concrete is poured. The formed reinforced concrete column strengthens the connection in the vertical direction and transmits vertical loads and horizontal shear forces.
[0060] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. An assembled building structure, characterized in that, It includes a base (1), and a connection groove (11) is formed on the base (1); A precast wall (2), whose bottom end is arranged in the connection groove (11); Two limit blocks (3) are slidably arranged on both sides of the bottom end of the precast wall (2) and are clamped in the connection groove (11); A spreading component (4) is arranged between the limit blocks (3) on both sides of the precast wall (2) and is used to drive the limit blocks (3) to move towards both sides. The spreading component (4) includes a support column (41), a first rod (42) and a second rod (43). One end of the support column (41) is respectively hinged to the ends of the first rod (42) and the second rod (43), and the free ends of the first rod (42) and the second rod (43) are respectively hinged to the limit blocks (3) on both sides; Wherein, a grouting groove (21) is arranged at the bottom end of the precast wall (2), a plurality of grouting ports (26) communicating with the grouting groove (21) are formed on the wall surface of the precast wall (2), a plurality of guide grooves (22) are formed on both sides of the bottom end of the precast wall (2), a plurality of guide blocks (31) are arranged on the side of the limit block (3), and the guide blocks (31) are slidably matched with the guide grooves (22); Accommodating grooves (24) for placing the limit blocks (3) are arranged on both sides of the bottom end of the precast wall (2).
2. The prefabricated building structure according to claim 1, wherein, An embedded part (12) is arranged at the bottom of the connection groove (11), a connection hole (27) is arranged at the bottom end of the precast wall (2), a through hole (28) communicating with the connection hole (27) is formed on the inner wall of the grouting groove (21), and the embedded part (12) is placed in the connection hole (27). Wherein, during grouting, concrete enters the connection hole (27) through the through hole (28) to connect the reserved connecting piece with the precast wall (2).
3. The prefabricated building structure according to claim 1, characterized in that A plurality of extension blocks (25) are arranged on both sides of the precast wall (2), and the extension blocks (25) on both sides of the precast wall (2) are arranged in a staggered manner; The extension block (25) is provided with a fixing hole (251). Wherein, when two precast walls (2) are spliced, a channel is formed in the fixing hole (251) on the extension block (25), and column steel bars are placed in the channel and concrete is poured.
4. The prefabricated building structure according to claim 3, wherein Inclined surfaces (252) are arranged at both ends of the extension block (25) where the fixing hole (251) is located.
5. The prefabricated building structure according to claim 1, wherein, A plurality of communication grooves (23) are formed through between the grouting groove (21) and the accommodating groove (24).
6. The prefabricated building structure according to claim 1, wherein, There is an inclination angle between the plane where the bottom of the guide groove (22) is located and the plane where the precast wall (2) is located, and the inclination angle is set to 30 - 60°.
7. The prefabricated building structure according to claim 1, characterized in that A plurality of lifting openings are arranged at the top end of the precast wall (2), and lifting rings (5) are arranged in the lifting openings.
8. A construction method for an assembled building structure, characterized in that, Adopting the assembled building structure as described in any one of claims 1 - 7, it includes the following steps: S1. First, fix the base (1) on a horizontal plane; S2. Install the limit blocks (3) on both sides of the bottom end of the precast wall (2), install the spreading component (4), and connect the free ends of the first rod (42) and the second rod (43) to the limit blocks (3); S3, using a lifting device fixed on the lifting ring (5) to lift the prefabricated wall (2), and place it in the connecting groove (11) on the base (1), and the limit block (3) moves to both sides under the action of the support assembly (4) and the prefabricated wall (2), and is engaged with the connecting groove (11); S4, injecting concrete into the grouting groove (21) through the grouting port (26), the concrete entering the connecting hole (27) through the through hole (28), fixing the prefabricated wall (2) and the embedded part (12), and the concrete filling the gap between the limit block (3) and the prefabricated wall (2) through the connecting groove (23), so that the base (1), the prefabricated wall (2) and the limit block (3) form a whole; S5. When the two prefabricated walls (2) are spliced, the extension blocks (25) on both sides are interlaced and engaged, the prefabricated column reinforcement is placed in the channel formed by the fixing holes (251) on the limiting blocks (3), and concrete is injected to solidify.