Prefabricated modular building structure

Abstract

The utility model discloses a prefabricated modular building structure, and belongs to the technical field of building construction, the prefabricated modular building structure comprises a prefabricated wallboard module, a prefabricated floor slab module and a connecting frame, the prefabricated wallboard module is composed of a reinforced concrete wallboard and embedded channel steel; the straight ribs penetrate through the pre-embedded channel steel, so that the two adjacent prefabricated wallboard modules can be rigidly connected through the connecting frame, the connecting steel plates and the pre-embedded steel plates are welded together, and the prefabricated floor slab modules are fixedly installed on the top of the connecting frame; seamless connection between the adjacent prefabricated wall panel modules can be achieved by pouring the concrete connecting joints, a continuous stress system is formed by the building structure, the integrity has obvious advantages in resisting horizontal acting force such as earthquake loads and wind loads, a continuous reinforcement system is formed in the concrete connecting joints through the connecting frames, and the construction efficiency is improved. The energy dissipation capacity of the building structure can be improved, and the overall strength of the connecting joint of the building structure is further guaranteed.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to a prefabricated modular building structure. Background Technology

[0002] In recent years, prefabricated modular buildings have gradually become an important development direction in the construction industry due to their advantages such as fast construction speed, low environmental pollution, and high resource utilization. Traditional cast-in-place concrete buildings require complex processes such as on-site formwork, rebar tying, and concrete pouring, resulting in long construction periods and significant weather-related impacts. In contrast, prefabricated modular building structures refer to the standardized production of various structural components in factories to form prefabricated wall panel modules and prefabricated floor slab modules, which are then assembled on the construction site, significantly improving construction efficiency.

[0003] In traditional prefabricated modular buildings, adjacent prefabricated wall panel modules are fixed together by embedded parts and bolts during on-site assembly. Although this method is convenient for installation, it results in insufficient strength at the connection nodes between adjacent prefabricated wall panel modules. Therefore, an improvement has been made to a prefabricated modular building structure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a prefabricated modular building structure that overcomes these deficiencies. It aims to solve the problem that in traditional prefabricated assembled buildings, adjacent prefabricated wall panel modules are fixed together by embedded parts and bolts during on-site assembly, which leads to insufficient strength at the connection nodes between adjacent prefabricated wall panel modules.

[0005] To achieve the above objectives, this application provides the following technical solution: a prefabricated modular building structure, comprising prefabricated wall panel modules, prefabricated floor slab modules, and a connecting frame. The prefabricated wall panel modules are composed of reinforced concrete wall panels and embedded channel steel. The embedded channel steel is vertically embedded on both sides of the reinforced concrete wall panels. The prefabricated floor slab modules are composed of reinforced concrete floor slabs and embedded steel plates. The connecting frame is composed of positioning steel plates, straight ribs, and connecting steel plates. The straight ribs vertically penetrate the embedded channel steel. The top of the connecting steel plate is fixedly welded to the bottom of the embedded steel plate. A casting template is fixedly connected to the outside of the connecting node of two adjacent prefabricated wall panel modules. A concrete connecting node is constructed on the inside of the casting template. Temporary support units are fixedly installed on both the inner and outer sides of the prefabricated wall panel modules.

[0006] By adopting the above technical solution, the precast wall panel modules are supported and fixed by temporary support units. Straight bars penetrate the embedded channel steel, enabling two adjacent precast wall panel modules to be rigidly connected through the connecting frame. The precast floor slab modules are fixedly installed on the top of the connecting frame by welding the connecting steel plate and the embedded steel plate together. The seamless connection between adjacent precast wall panel modules can be achieved by pouring concrete connection nodes, making the building structure a continuous force-bearing system. This integrity has a significant advantage in resisting horizontal forces such as seismic loads and wind loads. The continuous reinforcement system formed in the concrete connection nodes by the connecting frame helps to improve the energy dissipation capacity of the building structure and further ensures the overall strength of the connection nodes of the building structure.

[0007] As a preferred technical solution of this application, the outer wall of the straight rib is fitted with a right-angled steel plate, and the right-angled steel plate is fixedly welded to the bottom of the pre-embedded channel steel.

[0008] By adopting the above technical solution, two adjacent pre-embedded channel steels are fixedly welded together by right-angle steel plates to form a rigid connection, thereby enhancing the overall integrity of the structure.

[0009] As a preferred technical solution of this application, the upper surface of the pre-embedded channel steel is symmetrically provided with insertion holes on both sides, and the upper surface of the right-angle steel plate is provided with a circular hole corresponding to the insertion hole. The number of circular holes and insertion holes are the same, and the inner diameter of both is adapted to the outer diameter of the straight bar.

[0010] By adopting the above technical solution, the necessary conditions are provided for the straight ribs to pass through the right-angle steel plate and the pre-embedded channel steel by opening round holes and plug holes, so as to ensure the installation accuracy of the connection node.

[0011] As a preferred technical solution of this application, the top of the precast floor slab module is provided with an installation hole, and a fixing bolt is inserted into the internal thread of the installation hole. The lower end of the fixing bolt passes through the embedded steel plate and the connecting steel plate and is threadedly connected to a fixing nut.

[0012] By adopting the above technical solution, a double connection between the precast floor slab module and the connecting frame is achieved through the cooperation of the mounting holes, fixing bolts and fixing nuts, thereby further improving the tightness of the connection between the precast floor slab module and the connecting frame.

[0013] As a preferred technical solution of this application, a casting hole is provided on the outer wall of the casting template near the upper end, and a template release agent is applied to the inner wall of the casting template.

[0014] By adopting the above technical solution, the external concrete pouring machine pours concrete into the pouring formwork through the pouring hole to form a concrete connection node. By spraying the formwork release agent, the adhesion between the concrete and the pouring formwork can be reduced, making it easier to separate the pouring formwork from the concrete connection node.

[0015] As a preferred technical solution of this application, the temporary support unit consists of a positioning block one, a positioning block two, and a support rod. The outer surfaces of both positioning block one and positioning block two are provided with connecting holes for inserting connecting bolts. Positioning block one is fixedly connected to the ground by connecting bolts, and positioning block two is fixedly connected to the prefabricated wall panel module by connecting bolts.

[0016] By adopting the above technical solution, positioning block one and positioning block two are fixedly connected to the ground and the precast wall panel module respectively through connecting holes and connecting bolts, and a support system is formed by the support rod to support and fix the precast wall panel module.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, the precast wall panel modules are supported and fixed by temporary support units. Straight bars penetrate the embedded channel steel, enabling two adjacent precast wall panel modules to be rigidly connected through the connecting frame. The precast floor slab modules are fixedly installed on the top of the connecting frame by welding the connecting steel plate and the embedded steel plate together. The seamless connection between adjacent precast wall panel modules can be achieved by pouring concrete connection nodes, making the building structure a continuous force-bearing system. This integrity has a significant advantage in resisting horizontal forces such as seismic loads and wind loads. The continuous reinforcement system formed in the concrete connection nodes by the connecting frame helps to improve the energy dissipation capacity of the building structure and further ensures the overall strength of the connection nodes of the building structure.

[0019] 2. In this utility model, two adjacent pre-embedded channel steels are fixedly welded together by right-angle steel plates to form a rigid connection, which is used to enhance the overall structure. Through the cooperation between the mounting holes, fixing bolts and fixing nuts, a double connection between the precast floor slab module and the connecting frame is realized, further improving the tightness of the connection between the precast floor slab module and the connecting frame.

[0020] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of this application;

[0023] Figure 2 This is a connection diagram of the prefabricated wall panel module of this application;

[0024] Figure 3 This is a schematic diagram of the connection structure of the precast floor slab module in this application;

[0025] Figure 4 This is a schematic diagram of the composition of the temporary support unit of this application.

[0026] In the diagram: 1. Precast wall panel module; 101. Reinforced concrete wall panel; 102. Embedded channel steel; 103. Insertion hole; 2. Precast floor slab module; 201. Reinforced concrete floor slab; 202. Embedded steel plate; 3. Connecting frame; 301. Positioning steel plate; 302. Straight bar; 303. Connecting steel plate; 4. Casting template; 5. Casting hole; 6. Concrete connection node; 7. Temporary support unit; 701. Positioning block one; 702. Positioning block two; 703. Support rod; 704. Connecting hole; 8. Right angle steel plate; 9. Round hole; 10. Mounting hole; 11. Fixing bolt; 12. Fixing nut. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figure 1 - Figure 4As shown, this embodiment provides a prefabricated modular building structure, including a prefabricated wall panel module 1, a prefabricated floor slab module 2, and a connecting frame 3. The prefabricated wall panel module 1 consists of a reinforced concrete wall panel 101 and embedded channel steel 102, with the embedded channel steel 102 vertically embedded on both sides of the reinforced concrete wall panel 101. The prefabricated floor slab module 2 consists of a reinforced concrete floor slab 201 and embedded steel plate 202. The connecting frame 3 consists of a positioning steel plate 301, straight bars 302, and connecting steel plate 303, with the straight bars 302 vertically penetrating the embedded channel steel 102. The top of the connecting steel plate 303 is fixedly welded to the bottom of the embedded steel plate 202. A casting template 4 is fixedly connected to the outside of the connection node between two adjacent prefabricated wall panel modules 1, and a concrete connection node 6 is constructed on the inside of the casting template 4. Both the inner and outer sides of the prefabricated wall panel module 1 are fixedly installed with... Equipped with temporary support units 7, the precast wall panel modules 1 are supported and fixed during use. Straight bars 302 penetrate the embedded channel steel 102, enabling two adjacent precast wall panel modules 1 to be rigidly connected through the connecting frame 3. The precast floor slab modules 2 are fixedly installed on the top of the connecting frame 3 by welding the connecting steel plate 303 and the embedded steel plate 202 together. The seamless connection between adjacent precast wall panel modules 1 can be achieved by pouring concrete connection nodes 6, making the building structure a continuous force-bearing system. This integrity has a significant advantage in resisting horizontal forces such as seismic loads and wind loads. The continuous reinforcement system formed in the concrete connection nodes 6 by the connecting frame 3 helps to improve the energy dissipation capacity of the building structure and further ensures the overall strength of the connection nodes of the building structure.

[0029] In this embodiment, as Figure 2 As shown, a right-angled steel plate 8 is sleeved on the outer wall of the straight rib 302. The right-angled steel plate 8 is fixedly welded to the bottom of the embedded channel steel 102. In use, the right-angled steel plate 8 is used to fix and weld two adjacent embedded channel steels 102 together to form a rigid connection, which is used to enhance the overall structure.

[0030] In this embodiment, as Figure 1 and 2 As shown, the upper surface of the embedded channel steel 102 is symmetrically provided with insertion holes 103 on both sides. The upper surface of the right-angle steel plate 8 is provided with circular holes 9 corresponding to the insertion holes 103. The number of circular holes 9 and insertion holes 103 are the same, and the inner diameter of both is adapted to the outer diameter of the straight rib 302. In use, the circular holes 9 and insertion holes 103 provide the necessary conditions for the straight rib 302 to pass through the right-angle steel plate 8 and the embedded channel steel 102, so as to ensure the installation accuracy of the connection node.

[0031] In this embodiment, as Figure 3As shown, the top of the precast floor slab module 2 is provided with an installation hole 10. A fixing bolt 11 is inserted into the internal thread of the installation hole 10. The lower end of the fixing bolt 11 passes through the embedded steel plate 202 and the connecting steel plate 303 and is threaded with a fixing nut 12. In use, the double connection between the precast floor slab module 2 and the connecting frame 3 is realized through the cooperation between the installation hole 10, the fixing bolt 11 and the fixing nut 12, which further improves the tightness of the connection between the precast floor slab module 2 and the connecting frame 3.

[0032] In this embodiment, as Figure 1 As shown, a pouring hole 5 is provided on the outer wall of the casting template 4 near the upper end. The inner wall of the casting template 4 is coated with a template release agent. During use, an external concrete pouring machine pours concrete into the casting template 4 through the pouring hole 5 to form a concrete connection node 6. By spraying the template release agent, the adhesion between the concrete and the casting template 4 can be reduced, making it easier to separate the casting template 4 from the concrete connection node 6.

[0033] In this embodiment, as Figure 4 As shown, the temporary support unit 7 consists of positioning block 1 701, positioning block 2 702, and support rod 703. Both positioning block 1 701 and positioning block 2 702 have connecting holes 704 for inserting connecting bolts on their outer surfaces. Positioning block 1 701 is fixedly connected to the ground by connecting bolts, and positioning block 2 702 is fixedly connected to the precast wall panel module 1 by connecting bolts. In use, positioning block 1 701 and positioning block 2 702 are fixedly connected to the ground and the precast wall panel module 1 respectively through the connecting holes 704 and connecting bolts, and form a support system through the support rod 703 to support and fix the precast wall panel module 1.

[0034] The working principle of this utility model is as follows: When using the prefabricated modular building structure of this application, the prefabricated wall panel module 1 and the prefabricated floor slab module 2 are transported to the construction site. The prefabricated wall panel module 1 is hoisted and supported and fixed by the temporary support unit 7. Right angle steel plates 8 are fixedly welded to two adjacent embedded channel steels 102. Straight bars 302 are passed through the right angle steel plates 8 and the embedded channel steels 102. Positioning steel plates 301 and connecting steel plates 303 are welded to the lower and upper ends of the straight bars 302, respectively. Then, the prefabricated floor slab module 2 is hoisted and aligned with the connecting steel plates 303. Fixing bolts 11 are inserted to fix the prefabricated floor slab module 2 to the top of the connecting frame 3. The connecting steel plates 303 and the embedded steel plates 202 are fixedly welded together. After assembly, the casting template 4 is installed on the outside of the connection node and concrete is poured into it. When the concrete solidifies to form the concrete connection node 6, the casting template 4 and the temporary support unit 7 can be removed.

[0035] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A prefabricated modular building structure, comprising prefabricated wall panel modules (1), prefabricated floor slab modules (2), and connecting frames (3), characterized in that, The precast wall panel module (1) is composed of a reinforced concrete wall panel (101) and a pre-embedded channel steel (102). The pre-embedded channel steel (102) is vertically embedded on both sides of the reinforced concrete wall panel (101). The precast floor slab module (2) is composed of a reinforced concrete floor slab (201) and a pre-embedded steel plate (202). The connecting frame (3) is composed of a positioning steel plate (301), a straight bar (302), and a connecting steel plate (303). The straight bar (302) vertically penetrates the pre-embedded channel steel (102). The top of the connecting steel plate (303) is fixedly welded to the bottom of the pre-embedded steel plate (202). A casting template (4) is fixedly connected to the outside of the connecting nodes of two adjacent precast wall panel modules (1). A concrete connecting node (6) is built on the inside of the casting template (4). Temporary support units (7) are fixedly installed on both the inner and outer sides of the precast wall panel module (1).

2. The prefabricated modular building structure according to claim 1, characterized in that, The outer wall of the straight rib (302) is fitted with a right-angled steel plate (8), which is fixedly welded to the bottom of the pre-embedded channel steel (102).

3. A prefabricated modular building structure according to claim 2, characterized in that, The upper surface of the pre-embedded channel steel (102) is symmetrically provided with insertion holes (103) on both sides. The upper surface of the right-angle steel plate (8) is provided with a circular hole (9) corresponding to the insertion hole (103). The number of circular holes (9) and insertion holes (103) are the same, and the inner diameter of both is adapted to the outer diameter of the straight rib (302).

4. A prefabricated modular building structure according to claim 1, characterized in that, The top of the precast floor slab module (2) is provided with an installation hole (10), and a fixing bolt (11) is inserted into the internal thread of the installation hole (10). The lower end of the fixing bolt (11) passes through the embedded steel plate (202) and the connecting steel plate (303) and is threaded with a fixing nut (12).

5. A prefabricated modular building structure according to claim 1, characterized in that, The outer wall of the casting template (4) is provided with a casting hole (5) near the upper end, and the inner wall of the casting template (4) is coated with a template release agent.

6. A prefabricated modular building structure according to claim 1, characterized in that, The temporary support unit (7) consists of a positioning block one (701), a positioning block two (702) and a support rod (703). The outer surfaces of the positioning block one (701) and the positioning block two (702) are provided with connecting holes (704) for inserting connecting bolts. The positioning block one (701) is fixedly connected to the ground by connecting bolts, and the positioning block two (702) is fixedly connected to the prefabricated wall panel module (1) by connecting bolts.

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