A reconstituted bamboo shear wall vertical connection structure

Abstract

This utility model discloses a vertical connection structure for reconstituted bamboo shear walls, belonging to the field of prefabricated bamboo structure building technology. The structure includes a top joist for the lower shear wall unit, a bottom joist for the upper shear wall unit, and an edge-sealing beam positioned between them. A rigid connection between the upper and lower shear walls is achieved through a set of anchor bolts penetrating the bottom joist, edge-sealing beam, and top joist. This structure effectively solves the problems of low force transmission efficiency, high construction precision requirements, and limited seismic resistance associated with traditional connection methods, making it suitable for large-scale application in low-carbon bamboo structure buildings.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated bamboo structure building technology, specifically to a vertical connection structure between shear wall units in a reconstructed bamboo frame-shear wall structure, which realizes load transfer and seismic resistance coordination between upper and lower shear walls. Background Technology

[0002] Reconstituted bamboo materials are gradually replacing traditional structural materials in prefabricated buildings due to their environmental friendliness and sustainability. Currently, the vertical connections in prefabricated bamboo shear wall structures mainly employ slot splicing or adhesive bonding processes. Slot splicing requires extremely high precision in component prefabrication; even slight dimensional deviations during on-site construction can lead to incomplete fitting, affecting the integrity of the shear wall and load transfer efficiency. Adhesive bonding processes require on-site application and curing of adhesives, which is not only cumbersome but also susceptible to temperature and humidity variations, extending the construction period.

[0003] In existing technologies, vertical connection nodes in shear walls often suffer from cross-sectional weakening, leading to stress concentration and reduced load-bearing capacity. Some structures rely on complex multi-layered adhesive construction, which is difficult to construct and disassemble and reassemble, thus limiting the flexibility of the building's life cycle. Furthermore, traditional connection methods are prone to brittle failure under strong earthquakes, making it difficult to achieve the seismic design goal of "strong nodes and weak members."

[0004] Therefore, there is an urgent need for a reconstituted bamboo shear wall vertical connection structure that is highly adaptable to construction, has a clear force transmission path, and can be quickly assembled, in order to solve the problems of low construction efficiency, single seismic defense line, and non-removability in existing technologies. Summary of the Invention

[0005] This utility model aims to provide a convenient and earthquake-resistant vertical connection structure for reconstituted bamboo shear walls. By using a sealing beam interlayer and a fully bolted through-hole design, it solves the problems of low force transmission efficiency, high dependence on construction accuracy, and single earthquake defense line in traditional connection methods. It realizes efficient load transfer and collaborative work between upper and lower shear walls, while supporting rapid building assembly and functional reconfiguration.

[0006] To solve the above-mentioned technical problems, the technical solution proposed in this application is as follows:

[0007] This invention provides a vertical connection structure for reconstituted bamboo shear walls, comprising:

[0008] The lower shear wall unit is equipped with a top joist;

[0009] The upper shear wall unit is equipped with a bottom joist;

[0010] Edge sealing beam: installed between the top keel and the bottom keel;

[0011] For the anchor bolt assembly: it is inserted vertically through the bottom keel, the edge sealing beam and the top keel in sequence, and then fastened with nuts.

[0012] Furthermore, the top keel has a double-layer structure, including an upper top keel plate and a lower top keel plate arranged in parallel; the bottom keel has a single-layer structure.

[0013] Furthermore, the bolt diameter of the anchor bolt group is 12–20 mm, and the spacing is 300–600 mm; the diameter of each through hole is 2 mm larger than the bolt diameter.

[0014] Compared with the prior art, the present invention achieves the following beneficial technical effects:

[0015] This invention significantly improves the vertical force transmission efficiency and seismic reliability of reconstituted bamboo shear walls through a sandwich-type connection design with fully bolted through-hole fixing. Its innovation lies in: achieving effective connection and lossless load transfer between upper and lower shear walls, balancing construction convenience and structural stability; the bolted connection method greatly reduces installation difficulty, supporting rapid assembly and functional reconfiguration; and it also provides filling space for thermal insulation and soundproofing materials, optimizing the overall building performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of a vertical connection structure for a reconstituted bamboo shear wall provided in an embodiment of the present invention.

[0018] Figure 2 This is an exploded view of a vertical connection structure for a reconstituted bamboo shear wall provided in an embodiment of the present invention.

[0019] Figure 3 This is a partially enlarged schematic diagram of the connection between the upper and lower shear walls of a vertical connection structure for a reconstituted bamboo shear wall provided in an embodiment of the present invention.

[0020] The reference numerals in the accompanying drawings of this application include: lower shear wall unit 1, top keel 11, upper top keel plate 111, lower top keel plate 112, edge sealing beam 2, upper shear wall unit 3, bottom keel 31, and anchor bolt group 4. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1-3 As shown, this embodiment relates to a vertical connection structure for a reconstituted bamboo shear wall. This connection structure mainly consists of a lower shear wall unit 1, an upper shear wall unit 3, an edge-sealing beam 2, and an anchor bolt assembly 4. A top joist 11 is provided at the top of the lower shear wall unit 1, and a bottom joist 31 is provided at the bottom of the upper shear wall unit 3. The edge-sealing beam 2 is installed between the top joist 11 and the bottom joist 31, serving to connect and strengthen the upper and lower shear wall units, and also acting as a capping plate for the floor beam. The anchor bolt assembly 4 vertically penetrates the bottom joist 31, the edge-sealing beam 2, and the top joist 11 sequentially, and is finally tightened with nuts, thereby firmly uniting the entire vertical connection structure together.

[0023] The top keel 11 adopts a double-layer structure design, which includes an upper top keel plate 111 and a lower top keel plate 112 arranged in parallel. This double-layer structure can effectively improve the load-bearing capacity and stability of the top keel 11. The bottom keel 31, on the other hand, is designed as a single-layer structure, which simplifies the construction while meeting the structural connection requirements.

[0024] The bolt diameter for anchor bolt group 4 is 12–20 mm, and the spacing between bolts is 300–600 mm. Simultaneously, the diameter of each through hole is 2 mm larger than the bolt diameter. These parameter settings ensure that the bolts can pass smoothly through each component while also ensuring that the bolts have sufficient load-bearing capacity under stress, thereby guaranteeing the safety and reliability of the entire vertical connection structure.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vertical connection structure for reconstituted bamboo shear walls, characterized in that, include: The lower shear wall unit (1) is equipped with a top keel (11); The upper shear wall unit (3) is provided with a bottom keel (31); Edge sealing beam (2): disposed between the top keel (11) and the bottom keel (31); For the anchor bolt group (4): it passes vertically through the bottom keel (31), the edge sealing beam (2) and the top keel (11) in sequence, and is fastened with nuts.

2. The structure according to claim 1, characterized in that: The top keel (11) has a double-layer structure, including an upper top keel plate (111) and a lower top keel plate (112) arranged in parallel. The bottom keel (31) is a single-layer structure.

3. The structure according to claim 1, characterized in that: The bolt diameter of the anchor bolt group (4) is 12–20 mm, and the spacing is 300–600 mm; The diameter of each through hole is 1mm larger than the bolt diameter.

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