Variable node structure of bamboo building

Abstract

The utility model provides a variable node structure of a bamboo building, which relates to the technical field of bamboo buildings, and comprises two groups of structural bodies formed by four bamboos, the bamboos are arranged in groups in a pairwise orthogonal manner, and the structural bodies form a horizontal structural body and an inclined structural body; the arc-shaped fastening plates are arranged along the relative axial direction of the bamboo group, so that the four bamboos are in three-dimensional gathering contact at joints; the rivet set comprises four rivets which are not in contact with one another, the first pair of rivets extend in the axial direction of the first bamboo set, the second pair of rivets extend in the orthogonal direction and penetrate through the arc-shaped fastening plate, and a space cross-shaped anchoring system is formed on the section of the joint. A multi-stage energy dissipation mechanism is formed through the interface self-locking effect of the arc-shaped fastening plates, space anchoring and grading constraint of the cross rivet sets and asymmetric deflection energy dissipation of the hinge pieces, so that energy is consumed when the structure is loaded, and the safety coefficient is improved.

Description

Technical Field

[0001] This utility model relates to the field of bamboo building technology, and in particular to a variable node structure for bamboo buildings. Background Technology

[0002] In modern architecture, the demand for environmental protection and sustainability is increasing, and bamboo, as a renewable resource, is gradually being widely used in building structures. However, traditional connection methods in bamboo architecture often struggle to achieve efficient structural connections, especially in situations requiring high strength and multifunctionality at joints.

[0003] Existing bamboo structure building connection methods often fail to provide sufficient seismic resistance and multi-directional load-bearing capacity when faced with complex stress and deformation, making it difficult to meet the needs of modern architectural design. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a variable node structure for bamboo architecture, which solves the technical problem of low load-bearing capacity in existing bamboo structure building connection methods.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a variable node structure for bamboo architecture, comprising:

[0006] The structure consists of four bamboo poles arranged in pairs orthogonal groups. The structure has two groups, forming a horizontal structure and an inclined structure.

[0007] The arc-shaped fastening plate is arranged along the relative axis of the bamboo group, so that the four bamboos form a three-dimensional convergence contact at the node;

[0008] The rivet assembly comprises four non-contacting rivets, wherein the first pair of rivets extends along the axial direction of the first bamboo assembly, and the second pair of rivets extends in an orthogonal direction and penetrates the arc-shaped fastening plate, forming a spatial cross anchoring system at the node section.

[0009] The hinged component includes an upper connecting part and a lower connecting part that are hinged to each other, which respectively fix the horizontal structure and the inclined structure to form a variable topology node;

[0010] When the horizontal structure is subjected to a load, the inclined structure dissipates energy by forming a spatial deflection through the hinge.

[0011] Furthermore, the central axis of the inclined structure is offset from the hinge axis of the horizontal structure by 15°-45°, forming an asymmetrical force-bearing structure.

[0012] Furthermore, the fastening surface of the arc-shaped fastening plate is provided with an anti-slip textured layer, which forms an interface self-locking effect with the bamboo skin.

[0013] Furthermore, in the cross-shaped rivet group, the angle α between the axis of the first pair of rivets and the axis of the first bamboo group is 0°-10°, and the angle β between the axis of the second pair of rivets and the axis of the second bamboo group is 85°-95°.

[0014] Furthermore, the first pair of rivets is disposed on both sides of the second pair of rivets, and the gap between the first pair of rivets is greater than the gap between the second pair of rivets.

[0015] By employing the above technical solution, this utility model provides a variable node structure for bamboo architecture, which has at least the following beneficial effects:

[0016] This invention utilizes the interface self-locking effect of the arc-shaped fastening plate, the spatial anchoring and hierarchical constraint of the cross rivet group, and the asymmetric deflection energy dissipation of the hinge to form a multi-level energy dissipation mechanism, thereby enabling the structure to dissipate energy under load and improving the safety factor. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a partial structural schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the cross-shaped rivet group structure of this utility model.

[0021] In the diagram: 1. Component; 2. Arc-shaped fastening plate; 3. Rivet assembly; 4. Hinge. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to Figures 1-3 This embodiment proposes a variable node structure for bamboo architecture, including:

[0024] Structure 1 consists of four bamboo poles arranged in pairs orthogonal groups. Structure 1 has two groups, forming a horizontal structure and an inclined structure.

[0025] Each structure 1 consists of four bamboo poles arranged in pairs orthogonal to form a double grid topology. The horizontal structure mainly bears the vertical load (self-weight and live load), while the inclined structure provides lateral stability, forming a lateral force resisting system. The two structures work together to form a spatial truss effect, and the load is transmitted through multiple paths.

[0026] Please refer to Figure 2 The arc-shaped fastening plate 2 is arranged along the relative axial direction of the bamboo group, so that the four bamboos form a three-dimensional convergent contact at the node, and the arc-shaped fastening plate 2 provides radial constraint. The fastening surface of the arc-shaped fastening plate 2 is provided with an anti-slip textured layer, which forms an interface self-locking effect with the bamboo skin, increases friction, and reduces slippage between the bamboo and the arc-shaped fastening plate 2.

[0027] Please refer to Figure 3 Rivet group 3 comprises four non-contacting rivets. The first pair of rivets extends axially along the first bamboo group, and the second pair of rivets extends orthogonally and penetrates the arc-shaped fastening plate 2, forming a spatial cross-shaped anchoring system at the node section. In the cross-shaped rivet group 3, the angle α between the axis of the first pair of rivets and the axis of the first bamboo group is 0°-10°, and the angle β between the axis of the second pair of rivets and the axis of the second bamboo group is 85°-95°. The first pair of rivets is positioned on both sides of the second pair of rivets, and the gap between the first pair of rivets is larger than the gap between the second pair of rivets.

[0028] Rivet group 3 employs a cross-shaped staggered distribution to form spatial anchorage, ensuring the stability of the node under multi-directional forces. The first pair of rivets extends along the axial direction of the first bamboo group (angle α = 0°-10°), primarily resisting axial tension and compression. The second pair of rivets extends along the direction of the second bamboo group (angle β = 85°-95°), penetrating the arc-shaped fastening plate 2 to form lateral restraint, preventing lateral separation of the bamboo. Under vertical loads, rivet group 3 creates a lever effect, converting part of the load into lateral restraint force, enhancing the node stiffness; under horizontal loads (such as wind loads), rivet group 3 provides torsional resistance through its cross-shaped staggered distribution, preventing node rotational instability.

[0029] Please refer to Figure 1 Hinged component 4 comprises an upper connecting part and a lower connecting part that are hinged to each other. The two parts fix the horizontal structure and the inclined structure respectively, forming a variable topology node. The central axis of the inclined structure is offset from the hinge axis of the horizontal structure by 15°-45°, forming an asymmetric force-bearing structure.

[0030] When the horizontal structure is subjected to a load, the inclined structure dissipates energy by spatial deflection through the hinge 4.

[0031] In the initial state, hinge 4 is in its natural position with moderate node stiffness, allowing for minor deformation to accommodate construction errors or temperature changes. When a vertical load is applied, the horizontal structure is compressed, causing hinge 4 to deflect spatially; the inclined structure tilts accordingly, converting part of the load into a horizontal component, reducing the direct bending effect.

[0032] The asymmetrical arrangement (15°-45° offset) of the hinge 4 enables the node to have directional energy dissipation capability, preferentially dissipating energy by deforming in a specific direction.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A variable node structure for bamboo architecture, characterized in that, include: The structure (1) is composed of four bamboos, which are arranged in pairs orthogonal groups. The structure (1) has two groups, forming a horizontal structure and an inclined structure. The arc-shaped fastening plate (2) is arranged along the relative axis of the bamboo group so that the four bamboos form a three-dimensional convergence contact at the node; The rivet group (3) contains four non-contacting rivets, wherein the first pair of rivets extends along the axial direction of the first bamboo group, and the second pair of rivets extends in an orthogonal direction and penetrates the arc-shaped fastening plate (2), forming a spatial cross anchoring system at the node section; The hinge (4) includes an upper connecting part and a lower connecting part that are hinged to each other, which respectively fix the horizontal structure and the inclined structure to form a variable topology node; When the horizontal structure is subjected to a load, the inclined structure consumes energy by forming a spatial deflection through the hinge (4).

2. The variable node structure of a bamboo building according to claim 1, characterized in that, The central axis of the inclined structure is offset from the hinge axis of the horizontal structure by 15°-45°, forming an asymmetrical force-bearing structure.

3. The variable node structure of a bamboo building according to claim 1, characterized in that, The fastening surface of the arc-shaped fastening plate (2) is provided with an anti-slip textured layer, which forms an interface self-locking effect with the bamboo skin.

4. The variable node structure of a bamboo building according to claim 1, characterized in that, In the cross-shaped rivet group (3), the angle α between the axis of the first pair of rivets and the axis of the first bamboo group is 0°-10°, and the angle β between the axis of the second pair of rivets and the axis of the second bamboo group is 85°-95°.

5. The variable node structure of a bamboo building according to claim 1, characterized in that, The first pair of rivets is positioned on both sides of the second pair of rivets, and the gap between the first pair of rivets is greater than the gap between the second pair of rivets.

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