Fabricated building structure

Abstract

The utility model provides an assembly type building structure, which relates to the technical field of civil engineering and comprises a plurality of prefabricated parts, and steel connecting structures are pre-buried at preset connecting positions of the prefabricated parts. The steel connecting structure comprises a pre-embedded steel plate and a pre-embedded steel bar, the pre-embedded steel plate is arranged on the surface of the prefabricated part, and the pre-embedded steel bar is arranged in the prefabricated part and fixed together with the pre-embedded steel plate; the prefabricated parts are welded together through the pre-embedded steel plates at the connecting positions of the prefabricated parts. According to the fabricated building structure, the prefabricated parts are welded together through the pre-embedded steel plates at the connecting positions of the prefabricated parts. The connecting structure has the technical effects that the connecting construction between the prefabricated parts is simple, and the connecting reliability is good.

Description

Technical Field

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

[0002] Prefabricated buildings are constructed by prefabrication in factories and assembly on site. The core and challenge of prefabricated buildings lies in "connection." Therefore, the safety and integrity of prefabricated shear walls depend entirely on the reliability of the connections between components.

[0003] Chinese patent CN207568074U provides a connection scheme between a diaphragm wall and a horizontal load-bearing component, which requires on-site installation and pouring, as well as the arrangement of steel bars and steel plates on the construction site, resulting in numerous on-site construction procedures and complex construction.

[0004] The construction of connections between prefabricated components in current prefabricated building structures is still quite complex, and there is room for improvement in the reliability of these connections. Utility Model Content

[0005] The technical problem to be solved by this application is to propose a prefabricated building structure to address the above-mentioned shortcomings of the existing technology.

[0006] A prefabricated building structure includes multiple prefabricated components, each prefabricated component having a steel connection structure embedded at a predetermined connection position; the steel connection structure includes embedded steel plates and embedded reinforcing bars, the embedded steel plates being arranged on the surface of the prefabricated components, and the embedded reinforcing bars being arranged inside the prefabricated components and fixed together with the embedded steel plates; at the connection positions between the prefabricated components, the prefabricated components are welded together by the embedded steel plates.

[0007] Optionally, the prefabricated components include prefabricated shear wall panels and prefabricated floor slabs; at the connection points, the prefabricated shear wall panels and the prefabricated floor slabs are welded together by embedded steel plates, and adjacent prefabricated floor slabs are welded together by embedded steel plates.

[0008] Optionally, the connections between prefabricated components include Class A connections;

[0009] At the location of the Class A connection, two horizontally adjacent precast floor slabs are joined together, and the embedded steel plates on the end faces of the two precast floor slabs are welded together.

[0010] Optionally, the connections between prefabricated components include Class B connections;

[0011] At the location of the type B connection, two horizontally adjacent precast floor slabs and precast shear wall panels intersect and connect together; the embedded steel plates on the two precast floor slabs form an L-shaped structure with two sides, one side is used for horizontal connection between the precast floor slabs, and the other side is used for vertical connection with the embedded steel plates on the end face of the precast shear wall panels.

[0012] Optionally, the connections between prefabricated components include Class C connections;

[0013] At the C-type connection location, two vertically adjacent precast shear wall panels and a precast floor slab intersect and connect together; the two precast shear wall panels are located on the upper and lower sides of the precast floor slab respectively, the upper edge of the embedded steel plate on the end face of the precast floor slab is vertically connected to the embedded steel plate on the end face of the upper precast shear wall, and the lower edge of the embedded steel plate on the end face of the precast floor slab is vertically connected to the embedded steel plate on the end face of the lower precast shear wall.

[0014] Optionally, the embedded steel bars are connected to the distribution bars inside the precast component.

[0015] Optionally, the prefabricated building structure further includes a through-hole for connecting reinforcing bars; a threaded steel bar is inserted into the through-hole and extends downward into the foundation to connect with it; self-compacting concrete grout is poured into the space between the threaded steel bar and the inner wall of the through-hole to form a column.

[0016] Optionally, the threaded steel bar is fitted with multiple nuts at intervals, and the nuts on the threaded steel bar at different positions are staggered from each other.

[0017] Optionally, the precast components include precast shear wall panels and precast floor slabs; the steel reinforcement connection holes are arranged inside the precast shear wall panels and precast floor slabs.

[0018] Optionally, the rebar is a precision-rolled rebar with a diameter of 32mm.

[0019] In the prefabricated building structure provided in this application, the prefabricated components are welded together at the connection points using embedded steel plates. The technical advantage of this application is that the connection construction between the various prefabricated components is simple and the connection reliability is good. Attached Figure Description

[0020] Figure 1 This is one of the schematic diagrams of the prefabricated building structure in the embodiments of this application.

[0021] Figure 2 yes Figure 1 A schematic diagram of its breakdown.

[0022] Figure 3 This is a schematic diagram of type B connection in an embodiment of this application.

[0023] Figure 4 This is the second schematic diagram of the prefabricated building structure in the embodiments of this application.

[0024] Figure 5 This is the third schematic diagram of the prefabricated building structure in the embodiments of this application.

[0025] Reference numerals: 10 precast component, 10a precast shear wall panel, 10b precast floor slab, 11 steel connection structure, 111 embedded steel plate, 112 embedded reinforcing bar, 12 distribution bar, 20 reinforcing bar connection hole, 21 threaded steel bar, 22 nut. Detailed Implementation

[0026] The following are specific embodiments of this application, described in conjunction with the accompanying drawings, to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope of protection of this application. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0028] This application provides a prefabricated building structure, in which the connection between various prefabricated components is simple to construct and has good connection reliability. A detailed description follows with reference to the accompanying drawings.

[0029] refer to Figure 1 and Figure 2 The prefabricated building structure includes multiple prefabricated components 10, and steel connection structures 11 are pre-embedded in the prefabricated components 10 at predetermined connection positions. The steel connection structure 11 includes pre-embedded steel plates 111 and pre-embedded reinforcing bars 112. The pre-embedded steel plates 111 are arranged on the surface of the prefabricated components 10, and the pre-embedded reinforcing bars 112 are arranged inside the prefabricated components 10 and fixed together with the pre-embedded steel plates 111. At the connection positions between the prefabricated components 10, the prefabricated components 10 are welded together by the pre-embedded steel plates 111.

[0030] Precast components are manufactured in factories using standardized production methods, and then transported to the site for assembly and connection. Unlike the traditional "cast-in-place" method of setting up formwork, tying reinforcing bars, and pouring concrete on-site, precast components are mass-produced in specialized factories under strict quality control.

[0031] In this application, the steel connection structure 11 includes an embedded steel plate 111 and embedded reinforcing bars 112. The embedded steel plate 111 and embedded reinforcing bars 112 form a structural whole to resist external forces. The embedded reinforcing bars 112 are arranged inside the prefabricated component 10 and can be welded to the back of the embedded steel plate 111. They can hold the embedded steel plate 111 in place, enhance the bonding strength of the embedded steel plate 111, and prevent the embedded steel plate 111 from falling off. Therefore, when the embedded steel plate 111 is subjected to external force, the embedded reinforcing bars 112 can hold the embedded steel plate 111 in place to prevent it from detaching.

[0032] In one embodiment of this application, the embedded reinforcing bar 112 is connected to the distribution bar 12 inside the precast component. The distribution bar is a structural reinforcing bar in a building structure, mainly used to fix the position of the stressed reinforcing bar and distribute the load, preventing cracks caused by concrete shrinkage or temperature changes. The embedded reinforcing bar 112 connects the distribution bar 12 and the embedded steel plate 111. Under stress, the tensile force of the embedded steel plate 111 can be distributed to the distribution bar 12, thereby effectively improving the adhesion of the steel connection structure 11. In some technical solutions, the embedded reinforcing bar 112 is welded together with both the distribution bar 12 and the embedded steel plate 111.

[0033] Figure 1 and Figure 2 The diagram schematically illustrates the connection between two prefabricated components 10. Figure 2 In the middle, the two prefabricated components 10 are in a disassembled state; Figure 1 In the middle, the two prefabricated components 10 are in a connected state. When the two prefabricated components 10 are assembled together, the embedded steel plates 111 on the two prefabricated components 10 are in corresponding positions and fit together. The construction personnel can weld the embedded steel plates 111 on both sides together from the edge of the embedded steel plates 111, thereby connecting the two prefabricated components 10 into one unit. The construction is simple and the connection is reliable.

[0034] It should be understood that precast components come in various types, such as precast shear wall panels, precast floor slabs, precast columns, and precast beams. All types of precast components can be connected using the welding methods described above.

[0035] Specifically, the precast components include precast shear wall panels 10a and precast floor slabs 10b; at the connection points, the precast shear wall panels 10a and precast floor slabs 10b are welded together by embedded steel plates 111, and adjacent precast floor slabs 10b are welded together by embedded steel plates 111. Therefore, the connections between precast components can include connections between precast shear wall panels 10a and precast floor slabs 10b, connections between precast shear wall panels 10a and precast floor slabs 10a, and connections between precast floor slabs 10b.

[0036] In one embodiment of this application, the connection between prefabricated components includes a type A connection; at the location of the type A connection, two horizontally adjacent prefabricated floor slabs 10b are connected, and the embedded steel plates 111 on the end faces of the two prefabricated floor slabs 10b are welded together.

[0037] Figure 1 The diagram shows a structural schematic of two precast floor slabs 10b connected together, with multiple welds arranged along the edge connection line. In some prefabricated building structures, multiple precast floor slabs 10b are arranged between floors, and these slabs are connected together using the welding method described above to form a complete floor structure. Construction workers can weld the embedded steel plates 111 together from their edges, thus connecting the various precast floor slabs 10b into a single unit. This method is simple to construct and provides a reliable connection.

[0038] In one embodiment of this application, the connection between prefabricated components includes a type B connection. At the location of the type B connection, two horizontally adjacent prefabricated floor slabs 10b and a prefabricated shear wall panel 10a are joined together; the embedded steel plate 111 on the two prefabricated floor slabs 10b has an L-shaped structure formed by two sides, one side of which is used for the horizontal connection between the prefabricated floor slabs 10b, and the other side is used for the vertical connection with the embedded steel plate 111 on the end face of the prefabricated shear wall panel 10a.

[0039] Figure 3 A schematic diagram of a type B connection is shown. Figure 3 In the structure shown, two horizontally adjacent precast floor slabs 10b and a precast shear wall panel 10a are joined together, serving as a connection structure between interior floors of a building. In an illustrative on-site construction process, workers first weld the embedded steel plates 111 of the two horizontally adjacent precast floor slabs 10b together, and then weld the embedded steel plate 111 at the lower end of the precast shear wall panel 10a to the embedded steel plates 111 of the two precast floor slabs 10b. Based on this structure, workers reliably connect the two horizontally adjacent precast floor slabs 10b and the precast shear wall panel 10a together through welding.

[0040] In one embodiment of this application, the connection between prefabricated components includes a type C connection. At the location of the type C connection, two vertically adjacent prefabricated shear wall panels 10a and a prefabricated floor slab 10b are joined together; the two prefabricated shear wall panels 10a are respectively located on the upper and lower sides of the prefabricated floor slab 10b, the upper edge of the embedded steel plate 111 on the end face of the prefabricated floor slab 10b is vertically connected to the embedded steel plate 111 on the end face of the upper prefabricated shear wall, and the lower edge of the embedded steel plate 111 on the end face of the prefabricated floor slab 10b is vertically connected to the embedded steel plate 111 on the end face of the lower prefabricated shear wall.

[0041] Figure 4 A schematic diagram of the C-type connection structure is shown. Figure 4 In the structure shown, two vertically adjacent precast shear wall panels 10a and precast floor slabs 10b are joined together, serving as a connection structure between floors at the building's exterior wall location. In an illustrative on-site construction process, workers weld the upper edge of the embedded steel plate 111 on the end face of the precast floor slab 10b to the embedded steel plate 111 on the end face of the upper precast shear wall, and weld the lower edge of the embedded steel plate 111 on the end face of the precast floor slab 10b to the embedded steel plate 111 on the end face of the lower precast shear wall. Based on this structure, workers reliably connect the two vertically adjacent precast shear wall panels 10a and precast floor slabs 10b together through welding.

[0042] In one embodiment of this application, the prefabricated building structure further includes a through-hole 20 for reinforcing bars; a threaded steel bar 21 is inserted into the through-hole 20, extending downwards into the foundation and connecting with it; self-compacting concrete grout is poured into the space between the threaded steel bar 21 and the inner wall of the through-hole 20 to form a column. The prefabricated components include a prefabricated shear wall panel 10a and a prefabricated floor slab 10b; the through-hole 20 is arranged inside the prefabricated shear wall panel 10a and the prefabricated floor slab 10b. In one embodiment of this application, multiple nuts 22 are spaced apart on the threaded steel bar 21, and the nuts on the threaded steel bars at different positions are staggered. In some technical solutions, the threaded steel bar is a precision-rolled threaded steel bar with a diameter of 32mm.

[0043] refer to Figure 5 The rebar connection hole 20 passes sequentially through the upper precast shear wall panel 10a, the precast floor slab 10b, and the lower precast shear wall panel 10a. In one specific technical solution, the diameter of the rebar connection hole 20 is φ60mm. It should be understood that the rebar connection hole 20 will penetrate all the precast shear wall panels 10a and precast floor slabs 10b in the vertical direction. Figure 5 Only a portion of the rebar connection hole 20 is shown. In an illustrative on-site construction process, workers first insert the threaded steel bar 21 into the rebar connection hole 20 and extend it downwards into the foundation to connect with it. Then, self-compacting concrete grout is poured into the space between the threaded steel bar 21 and the inner wall of the rebar connection hole 20 to form a column. In this design, the threaded steel bar 21 can be made of high-strength threaded steel bar, also commonly known as high-strength threaded steel bar or prestressed threaded steel bar. It is a special-shaped straight steel bar with discontinuous external threads, which has high strength and better durability, and can firmly fix the entire prefabricated building structure to the foundation. Alternatively, in one technical solution, the self-compacting concrete poured into the space between the threaded steel bar and the inner wall of the rebar connection hole can be 120 MPa high-strength self-compacting concrete.

[0044] The schematic fabrication process of the prefabricated building structure provided in this application is as follows: First, prefabricated components, including embedded steel plates and embedded reinforcing bars, are prefabricated in a factory and produced in a standardized manner. Then, the prefabricated components are transported to the construction site. When the prefabricated components are assembled, the embedded steel plates on the prefabricated components are positioned and fit together precisely. Construction workers weld the embedded steel plates on both sides together from the edges, thereby connecting the two prefabricated components into a single unit. Finally, workers insert threaded steel bars into the reinforcing bar connection holes and extend them downwards into the foundation to connect with the foundation. Self-compacting concrete grout is poured into the space between the threaded steel bars and the inner wall of the reinforcing bar connection holes to form a column.

[0045] In this application, it should be understood that precast components come in various types, such as precast shear wall panels, precast floor slabs, precast columns, and precast beams. The connections between various precast components can all be made using the welding methods described above.

[0046] In summary, this application provides a prefabricated building structure in which the connection between various prefabricated components is simple to construct and has good connection reliability.

[0047] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0048] Furthermore, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] The specific embodiments described herein are merely illustrative examples of the technical solutions of this application. Those skilled in the art to which this application pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the scope defined by the claims of this application.

Claims

1. A prefabricated building structure, characterized in that, The prefabricated building structure includes multiple prefabricated components, each prefabricated component having a steel connection structure embedded at a predetermined connection position; the steel connection structure includes embedded steel plates and embedded reinforcing bars, the embedded steel plates being arranged on the surface of the prefabricated components, the embedded reinforcing bars being arranged inside the prefabricated components and fixed together with the embedded steel plates; at the connection positions between the prefabricated components, the prefabricated components are welded together by the embedded steel plates.

2. The prefabricated building structure according to claim 1, characterized in that, The prefabricated components include prefabricated shear wall panels and prefabricated floor slabs; at the connection points, the prefabricated shear wall panels and the prefabricated floor slabs are welded together by embedded steel plates, and adjacent prefabricated floor slabs are welded together by embedded steel plates.

3. The prefabricated building structure according to claim 2, characterized in that, Connections between prefabricated components include Class A connections; At the location of the Class A connection, two horizontally adjacent precast floor slabs are joined together, and the embedded steel plates on the end faces of the two precast floor slabs are welded together.

4. The prefabricated building structure according to claim 2, characterized in that, Connections between prefabricated components include Class B connections; At the location of the type B connection, two horizontally adjacent precast floor slabs and precast shear wall panels intersect and connect together; the embedded steel plates on the two precast floor slabs form an L-shaped structure with two sides, one side is used for horizontal connection between the precast floor slabs, and the other side is used for vertical connection with the embedded steel plates on the end face of the precast shear wall panels.

5. The prefabricated building structure according to claim 2, characterized in that, Connections between prefabricated components include Class C connections; At the C-type connection location, two vertically adjacent precast shear wall panels and a precast floor slab intersect and connect together; the two precast shear wall panels are located on the upper and lower sides of the precast floor slab respectively, the upper edge of the embedded steel plate on the end face of the precast floor slab is vertically connected to the embedded steel plate on the end face of the upper precast shear wall, and the lower edge of the embedded steel plate on the end face of the precast floor slab is vertically connected to the embedded steel plate on the end face of the lower precast shear wall.

6. The prefabricated building structure according to claim 1, characterized in that, The embedded steel bars are connected to the distribution bars inside the precast component.

7. The prefabricated building structure according to claim 1, characterized in that, The prefabricated building structure also includes a through-hole for connecting steel bars; threaded steel bars are inserted into the through-holes and extend downwards into the foundation to connect with it; self-compacting concrete grout is poured into the space between the threaded steel bars and the inner wall of the through-holes to form a column.

8. The prefabricated building structure according to claim 7, characterized in that, The threaded steel bar is fitted with multiple nuts at intervals, and the nuts on the threaded steel bar at different positions are staggered.

9. The prefabricated building structure according to claim 7, characterized in that, The precast components include precast shear wall panels and precast floor slabs; the steel reinforcement connection holes are arranged inside the precast shear wall panels and precast floor slabs.

10. The prefabricated building structure according to claim 7, characterized in that, The rebar is a precision-rolled rebar with a diameter of 32mm.

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