Orthogonal glued bamboo-wood steel frame structure seismic system

Abstract

The utility model discloses a kind of orthogonal gluing bamboo-wood steel frame structure seismic system, including orthogonal gluing bamboo-wood wallboard, orthogonal gluing bamboo-wood wallboard includes bamboo-wood component, steel frame, connecting joint, energy dissipation device, self-resetting system and base seismic isolation layer are set in orthogonal gluing bamboo-wood wallboard, orthogonal gluing bamboo-wood wallboard is made of multilayer bamboo-wood component orthogonal gluing;The utility model has organically combined orthogonal gluing bamboo-wood wallboard with steel frame, sufficiently exerted the double advantage of bamboo-wood material light weight high-strength, good toughness and steel strength, orthogonal gluing bamboo-wood wallboard uses multilayer bamboo-wood component orthogonal gluing, significantly improve the bidirectional shear capacity and in-plane stiffness of wallboard, can effectively resist horizontal shear under earthquake action, the bending capacity and stability of overall structure are strengthened by the addition of steel frame, compared with traditional reinforced concrete structure, the weight of this combined structure is obviously reduced, seismic inertia force is significantly reduced, simultaneously make the system have outstanding environmental protection advantage.

Description

Technical Field

[0001] This utility model relates to the field of building structure technology, and in particular to an orthogonal glued bamboo-wood-steel frame structure earthquake-resistant system. Background Technology

[0002] Traditional earthquake-resistant building structures mainly rely on reinforced concrete or steel structures. Although they have high load-bearing capacity, they have inherent defects such as heavy weight, high energy consumption, and long construction period. Although cross-laminated timber (CLT) structures developed in recent years have the advantages of being lightweight and environmentally friendly, they have insufficient lateral stiffness and poor reliability of joint connections, making it difficult to meet the earthquake resistance requirements of high-intensity earthquake zones.

[0003] Existing bamboo-wood-steel hybrid structures often employ simple mechanical connections, failing to fully utilize the high toughness of bamboo and wood and the high strength of steel, resulting in limited improvement in the overall seismic performance. Particularly in joint areas, the significant differences in mechanical properties between bamboo / wood and steel easily lead to stress concentration, severely impacting the structure's ductility and energy dissipation capacity. Furthermore, traditional structures lack effective self-resetting mechanisms, often resulting in substantial residual deformation after an earthquake, increasing the difficulty and cost of repairs.

[0004] Therefore, it is necessary to provide an orthogonal glued bamboo-wood-steel frame structure seismic-resistant system to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an orthogonal glued bamboo-wood-steel frame structure seismic-resistant system to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following solution to the above technical problems: an orthogonal laminated bamboo and wood steel frame structure seismic-resistant system, comprising orthogonal laminated bamboo and wood wall panels, wherein the orthogonal laminated bamboo and wood wall panels comprise bamboo and wood components, and wherein the orthogonal laminated bamboo and wood wall panels are provided with a steel frame, connection nodes, energy dissipation devices, a self-resetting system and a foundation isolation layer, and wherein the orthogonal laminated bamboo and wood wall panels are orthogonally glued together from multiple layers of bamboo and wood components.

[0007] As a further embodiment of this utility model, the orthogonal laminated bamboo and wood wall panel has a thickness of 80-120mm and pre-embedded channel steel connectors at the edges.

[0008] As a further embodiment of this utility model, the steel frame is composed of H-shaped steel beams and columns, with stiffening ribs provided in the joint areas, and the cross-sectional dimensions of the beams and columns are determined according to the building height and seismic fortification intensity.

[0009] As a further embodiment of this utility model, the connection node is connected by high-strength bolts, and a rubber pad layer is provided at the node to reduce stress concentration.

[0010] As a further embodiment of this utility model, the energy dissipation device is a buckling restraint support or a friction damper, which is arranged in a weak part of the structure.

[0011] As a further embodiment of this invention, the self-resetting system uses shape memory alloy or prestressed steel strand and is installed on the main load-bearing components.

[0012] As a further embodiment of this utility model, a fireproof protective layer is provided on the surface of the bamboo and wood component. The fireproof protective layer is gypsum board or fireproof coating, which is applied to the surface of the bamboo and wood component.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention organically combines orthogonal laminated bamboo and wood wall panels with a steel frame, fully leveraging the dual advantages of lightweight, high strength, and good toughness of bamboo and wood materials, and the high strength of steel. The orthogonal laminated bamboo and wood wall panels utilize multi-layered bamboo and wood components orthogonally bonded together, significantly improving the wall panels' bidirectional shear resistance and in-plane stiffness, effectively resisting horizontal shear forces under earthquake action. The addition of the steel frame enhances the overall structural bending resistance and stability, making it particularly suitable for building applications in high-intensity earthquake zones. Compared to traditional reinforced concrete structures, this combined structure significantly reduces its self-weight and seismic inertial force. Furthermore, the renewable nature of bamboo and wood materials gives this system outstanding environmental advantages. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall front view of the present invention; Figure 2 This is a top view of the overall internal structure of this utility model; Figure 3 This is a partial structural diagram of the fireproof protective layer of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Orthogonal laminated bamboo and wood wall panels; 101. Bamboo and wood components; 2. Steel frame; 3. Fireproof protective layer. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments.

[0017] Please see Figure 1-3This utility model provides an orthogonal laminated bamboo and wood steel frame structure seismic-resistant system, including orthogonal laminated bamboo and wood wall panels 1. The orthogonal laminated bamboo and wood wall panels 1 include bamboo and wood components 101. A steel frame 2, connection nodes, energy dissipation devices, a self-resetting system, and a foundation isolation layer are installed within the orthogonal laminated bamboo and wood wall panels 1. The orthogonal laminated bamboo and wood wall panels 1 are orthogonally glued together from multiple layers of bamboo and wood components 101. This utility model organically combines the orthogonal laminated bamboo and wood wall panels 1 with the steel frame 2, fully utilizing the lightweight, high strength, and good toughness of bamboo and wood materials, and the strength of steel. With the dual advantages of high strength, the orthogonal laminated bamboo and wood wall panel 1 uses multi-layer bamboo and wood components orthogonally bonded together, which significantly improves the two-way shear resistance and in-plane stiffness of the wall panel, and can effectively resist the horizontal shear force under seismic action. The addition of the steel frame 2 enhances the bending resistance and stability of the overall structure, making it particularly suitable for building applications in high-intensity earthquake zones of 8 degrees and above. Compared with traditional reinforced concrete structures, this composite structure has a significantly reduced self-weight and a significantly reduced seismic inertial force. At the same time, the renewable characteristics of bamboo and wood materials give this system outstanding environmental advantages.

[0018] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the thickness of the orthotropically bonded bamboo-wood wall panel 1 is 80-200mm, with pre-embedded channel steel connectors at the edges. Controlling the thickness of the orthotropically bonded bamboo-wood wall panel 1 within the 80-200mm range ensures sufficient lateral stiffness while avoiding material waste. The design of the pre-embedded channel steel connectors enables an efficient connection between the bamboo-wood wall panel 1 and the steel frame 2, solving the problem of insufficient joint strength in traditional bamboo-wood structures. The combination of the channel steel connectors and the bamboo-wood wall panel 1 effectively enhances the shear bearing capacity of the joint area, significantly improving the overall structural integrity. This connection method is simple to construct, requiring only bolt tightening to complete the installation, greatly improving construction efficiency. Furthermore, the pre-embedded channel steel design avoids on-site welding operations, making it particularly suitable for application on bamboo-wood materials and preventing the adverse effects of high-temperature welding on the performance of bamboo-wood.

[0019] Further as Figure 2 As shown, it is worth noting that steel frame 2 is composed of H-shaped steel beams and columns, with stiffening ribs at the joints. The beam and column cross-sectional dimensions are determined based on the building height and seismic fortification intensity. Steel frame 2, composed of H-shaped steel beams and columns, features a large moment of inertia and good bending resistance, effectively bearing the building's vertical loads. The stiffening ribs at the joints significantly improve the load-bearing capacity and ductility of the joint areas, preventing brittle failure under seismic loads. Determining the beam and column cross-sectional dimensions based on the building height and seismic fortification intensity achieves optimized material allocation, ensuring structural safety while saving steel consumption. This design method allows the structure to maintain optimal performance in different seismic zones.

[0020] Further as Figure 2 and Figure 3As shown, it is worth noting that the connection nodes utilize high-strength bolts, with rubber pads at the nodes to reduce stress concentration. High-strength bolt connections are convenient to construct and reliable, making them particularly suitable for composite structures of bamboo, wood, and steel. The rubber pads at the nodes effectively alleviate stress concentration between different materials, preventing premature failure at the connection points. The elastic deformation capacity of the rubber pads can absorb some seismic energy, improving the energy dissipation capacity of the nodes. This connection method makes the overall stiffness of the structure more uniform, avoiding excessive local stress. Test data shows that structures using this connection node achieve an energy dissipation coefficient of over 0.25 under cyclic loading, demonstrating excellent seismic performance. Furthermore, this connection method facilitates disassembly and replacement, greatly improving the maintainability of the structure.

[0021] Further as Figure 2 and Figure 3 As shown, it is worth noting that the energy dissipation devices are buckling-restrained braces or friction dampers, arranged at the weak points of the structure. The installation of buckling-restrained braces and friction dampers enables the structure to actively dissipate energy, effectively absorbing seismic input energy. Placing these energy dissipation devices at the weak points of the structure realizes the design concept of "damage control," ensuring that seismic energy is concentrated and dissipated at predetermined locations. Actual measurements show that the addition of energy dissipation devices significantly reduces the acceleration response under seismic loading. This design allows the structure to remain elastic during minor earthquakes, reduce vibrations during moderate earthquakes through energy dissipation devices, and ensure safety during major earthquakes through a predetermined yielding mechanism, achieving multiple lines of seismic defense. Furthermore, the energy dissipation devices are easy to replace after damage, greatly improving the repairability of the structure.

[0022] Further as Figure 2 and Figure 3 As shown, it is worth noting that the self-resetting system uses shape memory alloys or prestressed steel strands, installed on the main load-bearing components. The application of shape memory alloys or prestressed steel strands gives the structure self-resetting capability, significantly reducing residual deformation after an earthquake. The self-resetting system installed on the main load-bearing components generates restoring force after an earthquake, helping the structure return to its initial position. This design is particularly suitable for important buildings, significantly reducing post-earthquake repair costs. Test data shows that using a self-resetting system can reduce residual structural deformation, and the hyperelastic properties of shape memory alloys can provide additional energy dissipation capacity, further improving the structure's seismic performance. Furthermore, this passive self-resetting system requires no external energy source, is highly reliable, and is simple to maintain.

[0023] Further as Figure 1 and Figure 3As shown, it is worth noting that a fire-resistant protective layer 3 is provided on the surface of the bamboo and wood component 101. This fire-resistant protective layer 3, consisting of gypsum board or fire-retardant coating, covers the surface of the bamboo and wood component 101. The fire-resistant protective layer 3 significantly improves the fire resistance limit of the bamboo and wood component, enabling it to meet the fire resistance standards required by regulations. The fire-resistant layer covering the surface of the bamboo and wood component 101 effectively delays temperature rise during a fire, buying valuable time for personnel evacuation. Tests show that the fire-resistant protective layer 3 also improves the weather resistance of the bamboo and wood materials, extending the service life of the structure. Furthermore, this protective layer is easy to construct, inexpensive, and does not affect the seismic performance of the structure. The good compatibility of the fire-resistant protective layer 3 with the bamboo and wood substrate ensures that cracking or peeling will not occur during long-term use.

[0024] In summary, by organically combining the orthogonal laminated bamboo and wood wall panel 1 with the steel frame 2, the dual advantages of lightweight, high strength, and good toughness of bamboo and wood materials and high strength of steel are fully utilized. The orthogonal laminated bamboo and wood wall panel 1 uses multi-layer bamboo and wood components orthogonally bonded together, which significantly improves the two-way shear resistance and in-plane stiffness of the wall panel, and can effectively resist the horizontal shear force under seismic action. The addition of the steel frame 2 enhances the bending resistance and stability of the overall structure, making it particularly suitable for building applications in high-intensity earthquake zones of 8 degrees and above. Compared with traditional reinforced concrete structures, this combined structure has a significantly reduced self-weight and a significantly reduced seismic inertial force. At the same time, the renewable characteristics of bamboo and wood materials give this system outstanding environmental advantages.

Claims

1. An orthogonal laminated bamboo-wood steel frame structure seismic-resistant system, comprising orthogonal laminated bamboo-wood wall panels (1), characterized in that: The orthogonal laminated bamboo and wood wall panel (1) includes bamboo and wood components (101). The orthogonal laminated bamboo and wood wall panel (1) is provided with a steel frame (2), connection nodes, energy dissipation devices, self-resetting system and foundation isolation layer. The orthogonal laminated bamboo and wood wall panel (1) is orthogonally glued together by multiple layers of bamboo and wood components (101).

2. The seismic-resistant system of orthogonal glued laminated bamboo-wood-steel frame structure according to claim 1, characterized in that: The thickness of the orthogonal laminated bamboo and wood wall panel (1) is 80-200mm, and the edge is pre-embedded with channel steel connectors.

3. The seismic-resistant system of orthogonal glued laminated bamboo-wood-steel frame structure according to claim 2, characterized in that: The steel frame (2) is composed of H-shaped steel beams and columns, with stiffening ribs set in the joint area. The cross-sectional dimensions of the beams and columns are determined according to the building height and seismic fortification intensity.

4. The seismic-resistant system of orthogonal glued laminated bamboo-wood-steel frame structure according to claim 3, characterized in that: The connection nodes are connected with high-strength bolts, and rubber pads are installed at the nodes to reduce stress concentration.

5. The seismic-resistant system of orthogonal glued laminated bamboo-wood-steel frame structure according to claim 1, characterized in that: The energy dissipation device is a buckling restraint brace or a friction damper, and is arranged in a weak part of the structure.

6. The seismic-resistant system of orthogonal glued laminated bamboo-wood-steel frame structure according to claim 5, characterized in that: The self-resetting system uses shape memory alloy or prestressed steel strand and is installed on the main load-bearing components.

7. The seismic-resistant system of orthogonal glued laminated bamboo-wood-steel frame structure according to claim 1, characterized in that: The surface of the bamboo and wood component (101) is provided with a fireproof protective layer (3), which is gypsum board or fireproof coating, and is applied to the surface of the bamboo and wood component (101).

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