Fabricated building
By using a combination structure of tapered connecting plugs and buffer rubber rings in prefabricated buildings, the problems of high connection accuracy requirements and insufficient seismic resistance of grouting sleeves are solved, achieving the effects of simplifying the connection process and improving building stability.
Patent Information
- Application Number
- CN202520500723.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-21
AI Technical Summary
In existing prefabricated buildings, grouting sleeve connections require high-precision alignment and lack buffering capacity, resulting in poor earthquake vibration damping.
The structure adopts a combination of tapered connecting plugs and buffer rubber rings. The connecting plugs are tapered at the top and bottom, and the inner side of the supporting steel bars is fixed by the connecting rings. The buffer rubber rings are bound to the steel bars and are used to connect the lower and upper components. Concrete structural adhesive is injected at the connection point for fixation.
It achieves a connection that does not require precise docking, improves the stability of the connection, and provides an effective buffering effect under seismic loads, thereby enhancing the seismic performance of the building.
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Figure CN223963998U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of prefabricated building connection, and specifically to a prefabricated building. Background Technology
[0002] Prefabricated construction refers to transferring a large amount of on-site work from traditional construction methods to factories. Building components and accessories (such as floor slabs, wall panels, and stairs) are prefabricated in factories, transported to the construction site, and assembled on-site using reliable connection methods. When assembling wall panel components and floor slabs of upper and lower floors, grouting sleeves are used for connection. Grouting sleeves are pre-embedded in the connection end of the components during the prefabrication process. During on-site construction, the exposed reinforcing bars of another connecting component are inserted into the sleeve. After the components are installed and positioned, the reinforcing bars are connected by grouting. However, this type of reinforcing bar connection requires one-to-one correspondence and fixation with sleeves, which has high precision requirements. Moreover, this type of connection is a rigid connection, and its connection does not have a buffering effect, resulting in less buffering for seismic vibrations. Utility Model Content
[0003] To address the aforementioned problems, this utility model provides a prefabricated building.
[0004] This utility model is achieved through the following technical solution:
[0005] A prefabricated building includes multiple lower components of a lower building and multiple upper components of an upper building. Floor slabs support the corresponding lower and upper components. Multiple pre-installed holes and connecting holes are provided in the corresponding lower, upper components and floor slabs. Connecting plugs that pass through the connecting holes are provided in the upper and lower pairs of pre-installed holes for fixed assembly and connection.
[0006] Alternatively, the connecting plug is tapered at the top and bottom, and includes multiple supporting steel bars arranged in a ring. The inner sides of the multiple supporting steel bars are fixed by multiple connecting rings, and the upper and lower ends of the multiple supporting steel bars are bound with multiple buffer rubber rings.
[0007] Alternatively, the connector may be shaped such that its center is located within the connector hole and its upper and lower ends extend into the corresponding pre-installed holes.
[0008] Alternatively, multiple buffer rubber rings at the upper and lower ends are inclined along the tapered connecting plug.
[0009] Alternatively, the pre-installed hole side of the upper component may be provided with a filling hole for injecting structural adhesive concrete.
[0010] Compared with existing technologies, the advantages of this utility model are as follows: This utility model sets conical connecting plugs with buffering function in the pre-installation holes and connection holes corresponding to the lower component, upper component, and floor slab. There is an installation annular gap between the pre-installation hole of the upper component and the connecting plug, which makes alignment and connection more convenient and eliminates the need for precise docking. Moreover, the multiple buffer rubber rings have good buffering properties and can buffer part of the impact when subjected to the impact of the pre-installation hole of the seismic component, thereby improving the stability of the connection between the lower component and the upper component. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0012] Figure 2 yes Figure 1 Enlarged view of a local structure in the diagram;
[0013] Figure 3 This is a connection diagram of the practical connector plug-in;
[0014] In the diagram: Lower component 1, floor slab 2, connecting hole 201, upper component 3, pre-installed hole 4, connecting plug 5, supporting steel bar 6, connecting ring 7, buffer rubber ring 8, filling hole 9. Detailed Implementation
[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:
[0016] like Figure 1 , 2 As shown, a prefabricated building includes multiple lower components 1 of the lower structure and multiple upper components 3 of the upper structure. Both the lower components 1 and the upper components 3 are constructed using precast concrete walls. A floor slab 2 supports the lower components 1 and the upper components 3. Multiple pre-installed holes 4 and connecting holes 201 are provided in the lower components 1, the upper components 3 and the floor slab 2. The pre-installed holes 4 and the connecting holes 201 are of the same size. Connecting plugs 5 that pass through the connecting holes 201 are provided in the upper and lower pairs of pre-installed holes 4 for fixed assembly and connection.
[0017] like Figure 3 As shown, the connecting plug 5 is tapered at the top and bottom and includes multiple supporting steel bars 6 arranged in a ring. The inner sides of the multiple supporting steel bars 6 are fixed by multiple connecting rings 7. Multiple buffer rubber rings 8 are bound to the upper and lower ends of the multiple supporting steel bars 6. The buffer rubber rings 8 are tied and fixed to the corresponding connecting rings 7 by binding wires, thereby preventing the buffer rubber rings 8 from moving up and down.
[0018] like Figure 3 As shown, the connector 5 is shaped so that its center is located in the connector hole 201 and its upper and lower ends extend into the corresponding pre-installed holes 4.
[0019] like Figure 3 As shown, multiple buffer rubber rings 8 at the upper and lower ends are inclined along the tapered connecting plug 5.
[0020] like Figure 1 As shown, the pre-installation hole 4 of the upper component 3 is provided with a filling hole 9 for injecting structural adhesive concrete.
[0021] The implementation principle of a prefabricated building according to an embodiment of this application is as follows:
[0022] When assembling the lower component 1 wall and the upper component 3 wall, the floor slab 2 is hoisted onto the top of the floor slab 2 above the lower component 1 of the lower building. Before placing it, the connecting plug 5 is inserted into the multiple pre-installed holes 4 and connecting holes 201 that correspond to the lower component 1 and the floor slab 2. When placing it, the middle part of the connecting plug 5 should be kept in the middle section of the connecting hole 201 as much as possible. This can ensure the uniformity of the connection between the upper and lower ends of the connecting plug 5 and the lower component 1 and the upper component 3.
[0023] Next, the corresponding upper component 3 wall is hoisted so that the multiple pre-installed holes 4 at the bottom of the upper component 3 wall are aligned with the exposed upper half of the connecting plug 5 and inserted and lowered to fit against the floor slab 2. During the lowering, due to the tapered setting of the upper part of the connecting plug 5, there is an installation annular gap between the pre-installed holes 4 of the upper component 3 and the connecting plug 5, making alignment and connection easier and eliminating the need for precise docking. After placement, concrete structural adhesive is used to fill the pre-installed holes 4 inside the connecting plug 5 along the filling holes 9 of the upper component 3, thereby achieving the connection and fixation of the connecting plug 5 with the lower component 1, the floor slab 2, and the connecting hole 201. The multiple buffer rubber rings 8 bound to the upper and lower parts of the connecting plug 5 have good buffering properties. When impacted by the pre-installed holes 4 of the seismic component, they can buffer part of the impact, improving the stability of the connection between the lower component 1 and the upper component 3.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A prefabricated building, comprising a plurality of lower components (1) of a lower building and a plurality of upper components (3) of an upper building, wherein floor slabs (2) support the corresponding lower components (1) and upper components (3), characterized in that: The lower component (1), upper component (3) and floor slab (2) are provided with a number of pre-installed holes (4) and connecting holes (201) facing each other. Connecting plugs (5) passing through the connecting holes (201) are provided in the upper and lower pre-installed holes (4) for fixed assembly and connection. The connecting plug (5) is tapered at the top and bottom and includes multiple supporting steel bars (6) arranged in a ring. The inner sides of the multiple supporting steel bars (6) are fixed by multiple connecting rings (7). Multiple buffer rubber rings (8) are bound to the upper and lower ends of the multiple supporting steel bars (6).
2. A prefabricated building according to claim 1, characterized in that: The connector (5) is shaped so that its center is located inside the connector hole (201) and its upper and lower ends extend into the corresponding pre-installed holes (4).
3. A prefabricated building according to claim 1, characterized in that: Multiple buffer rubber rings (8) at the top and bottom are inclined along the tapered connecting plug (5) on the outside.
4. A prefabricated building according to claim 1, characterized in that: The pre-installation hole (4) of the upper component (3) is provided with a filling hole (9) for injecting concrete structural adhesive.