Earthquake-proof joint node structure of ultra-low energy consumption building

Abstract

The utility model discloses an ultra-low energy consumption building quakeproof joint node structure which comprises a first galvanized steel sheet arranged on the inner side of an outer wall and a second galvanized steel sheet arranged on the outer side of the outer wall, the first galvanized steel sheet and the second galvanized steel sheet are sealed through rock wool, and a waterproof gas-isolating film is fully adhered to the first galvanized steel sheet; a waterproof breathable film is fully adhered to the second galvanized steel sheet, and the waterproof breathable film and a coating waterproof layer on the outer side of the outer wall form a continuous closed waterproof layer; the waterproof gas insulation film and the outer wall inner side plaster layer form a continuous closed airtight layer; the first galvanized steel plate and the second galvanized steel plate are fixed through phi 6 plastic expansion anchor bolts, and the deformation allowance of 200 mm is reserved; and a finished deformation joint aluminum alloy cover plate is arranged at the inner side joint of the outer wall. Aiming at the weak part of the earthquake-proof joint in the ultra-low-energy-consumption building, the energy-saving and air-tightness design requirements of the ultra-low-energy-consumption building at the earthquake-proof joint node are effectively met through innovative energy-saving plugging and waterproof sealing measures.

Description

A seismic joint structure for ultra-low energy consumption buildings Technical Field

[0001] This utility model relates to the field of architectural design technology, and in particular to an ultra-low energy consumption building seismic joint node structure. Background Technology

[0002] In architectural design, when buildings such as kindergartens, schools, elderly care facilities, and hospitals adopt ultra-low energy consumption and seismic isolation technologies, traditional seismic joint designs often fail to meet the requirements for the thermal performance of the building's exterior wall envelope and the building's airtightness. While existing seismic joint structures ensure that the building can withstand seismic deformation, they often adversely affect the energy-saving and airtight performance of ultra-low energy consumption buildings, thus failing to effectively achieve the energy-saving goals of ultra-low energy consumption buildings. Summary of the Invention

[0003] The purpose of this invention is to provide an ultra-low energy consumption building seismic joint node structure, thereby solving the aforementioned problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An ultra-low energy consumption building seismic joint node structure includes a first galvanized steel plate set on the inner side of the outer wall and a second galvanized steel plate set on the outer side of the outer wall. The first galvanized steel plate and the second galvanized steel plate are sealed with rock wool. The first galvanized steel plate is fully covered with a waterproof and air-tight membrane.

[0006] The width of the waterproof and air-tight membrane on both sides is ≥50mm compared with the width of the first galvanized steel plate on both sides; the waterproof and air-tight membrane and the cement mortar surface layer on the inner side of the outer wall form a continuous and closed building airtight layer.

[0007] The second galvanized steel plate is fully covered with a waterproof and breathable membrane. The width of the waterproof and breathable membrane on both sides is ≥50mm wider than the width of the second galvanized steel plate on both sides. The waterproof and breathable membrane and the waterproof coating layer on the outside of the exterior wall form a continuous and closed waterproof layer. Both the first and second galvanized steel plates are fixed with φ6 plastic expansion anchor bolts, and both are reserved with a deformation allowance of 200mm. An aluminum alloy cover plate is installed at the joint on the inside of the exterior wall, and a deformable aluminum plate is installed at the joint of the outer surface layer of the outer thermal insulation rock wool strip on the outside of the exterior wall.

[0008] In some specific embodiments, the thickness of both the first galvanized steel sheet and the second galvanized steel sheet is 1 mm.

[0009] In some specific embodiments, the spacing of the φ6 plastic expansion anchor bolts is 400mm.

[0010] In some specific embodiments, rock wool is filled between the first galvanized steel sheet and the second galvanized steel sheet, and between the second galvanized steel sheet and the deformable aluminum sheet.

[0011] In some specific embodiments, the aluminum alloy cover plate is a sealing and decorative component for indoor seismic joints and meets deformation requirements.

[0012] In some specific embodiments, deformable aluminum plates are wrapped around the seams of the outer surface layer of the external insulation rock wool strip.

[0013] The beneficial effects of this utility model are:

[0014] This utility model discloses an ultra-low energy consumption building seismic joint node structure, including a first galvanized steel plate set on the inner side of the exterior wall and a second galvanized steel plate set on the outer side of the exterior wall. The first and second galvanized steel plates are sealed with rock wool. The first galvanized steel plate is fully covered with a waterproof and airtight membrane. The width of the waterproof and airtight membrane on both sides is ≥50mm compared with the width of the first galvanized steel plate on both sides. The waterproof and airtight membrane forms a continuous and closed airtight layer with the cement mortar surface layer on the inner side of the exterior wall. The second galvanized steel plate is fully covered with a waterproof and breathable membrane. The width of the waterproof and breathable membrane on both sides is ≥50mm compared with the width of the second galvanized steel plate on both sides. The waterproof and breathable membrane forms a continuous and closed waterproof layer with the waterproof coating layer on the outer side of the exterior wall. Both the first and second galvanized steel plates are fixed with φ6 plastic expansion anchor bolts, and both are reserved with a deformation allowance of 200mm. A prefabricated deformation joint aluminum alloy cover plate is provided at the joint on the inner side of the exterior wall, and a deformable aluminum plate is provided at the joint of the outer insulation layer and the outer cladding layer on the outer side of the exterior wall. This utility model targets the weak points of seismic joints in ultra-low energy consumption buildings. Through innovative energy-saving sealing and waterproof sealing measures, it effectively meets the energy-saving and airtightness design requirements of ultra-low energy consumption buildings at seismic joint nodes, significantly improves the overall thermal performance and airtightness of the building, and achieves the energy-saving goal of ultra-low energy consumption buildings while ensuring the building's safety and earthquake resistance. It has good economic and social benefits and provides technical support for the development of ultra-low energy consumption buildings. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the sealing node structure of the main structure of the anti-vibration joint of this utility model;

[0016] Figure 2 is a schematic diagram of the complete node structure of the anti-vibration joint of this utility model.

[0017] In the attached diagram: 1. Exterior wall; 2. First galvanized steel plate; 21. Second galvanized steel plate; 3. Waterproof and breathable membrane; 4. Waterproof and breathable membrane; 5. Finished stainless steel seismic joint cover plate; 6. Rock wool; 7. External insulation rock wool strip.

[0018] 8. EPDM rubber strips; 9. Aluminum alloy cover plate; 10. Galvanized steel pipe; 11. Galvanized embedded plate; 12. Heat insulation pad; 13. Anchor bolts; 14. Sealant; 15. Expansion anchor bolts; 16. Waterproof coating layer. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0020] Referring to Figures 1 and 2, an ultra-low energy consumption building seismic joint node structure includes a first galvanized steel plate 2 set on the inner side of the outer wall 1 and a second galvanized steel plate 21 set on the outer side of the outer wall 1. The first galvanized steel plate 2 and the second galvanized steel plate 21 are sealed by rock wool 6. The first galvanized steel plate 2 is fully covered with a waterproof and air-tight membrane 3.

[0021] The width of the waterproof and air-tight membrane 3 on both sides is ≥50mm compared with the width of the first galvanized steel plate 2 on both sides; the waterproof and air-tight membrane 3 and the cement mortar surface layer on the inner side of the outer wall 1 form a continuous and closed building airtight layer.

[0022] The second galvanized steel plate 21 is fully covered with a waterproof and breathable membrane 4. The width of the waterproof and breathable membrane 4 on both sides is ≥50mm compared with the width of the second galvanized steel plate 21 on both sides. The waterproof and breathable membrane 4 and the waterproof coating layer 16 on the outside of the outer wall 1 form a continuous and closed waterproof layer. The first galvanized steel plate 2 and the second galvanized steel plate 21 are both fixed with φ6 plastic expansion anchor bolts 15, and both are reserved with a deformation allowance of 200mm. An aluminum alloy cover plate 9 is provided at the seam on the inside of the outer wall 1, and a deformable aluminum plate is provided at the seam of the outer surface layer of the outer thermal insulation rock wool strip 7 on the outside of the outer wall 1.

[0023] It should be noted that the first galvanized steel plate 2 and the second galvanized steel plate 21 are respectively installed at the seismic joints on the inner and outer sides of the outer wall 1, forming two opposing closed barriers. Their bending shapes are adapted to the geometry of the seismic joints. The inner and outer galvanized steel plates are sealed with rock wool 6 and fixed to the main structure using φ6 plastic expansion bolts 15 at 400mm intervals. The galvanized steel plates provide base support for subsequent waterproof and breathable membranes 3 and 4.

[0024] Functions: Supports rock wool 6, ensuring its stability and filling density; serves as the base layer for waterproof and breathable membrane 3 and waterproof and breathable membrane 4, ensuring a reliable connection between the sealing material and the main structure; its own metallic strength enhances the structural stability of the seismic joint, resists deformation and displacement under seismic forces, and provides basic support and protection for the entire seismic joint.

[0025] Rock wool 6 is filled between the inner and outer galvanized steel plates, completely filling the internal space of the seismic joint and forming a core layer for thermal insulation.

[0026] Rock wool is tightly bound between inner and outer galvanized steel sheets, maintaining its position and shape through the fixing effect of the galvanized steel sheets, while contacting the edges of the main structure.

[0027] Functions: To meet the thermal performance requirements of the building envelope at the seismic joint, effectively block the transfer of heat between indoors and outdoors, and reduce building energy consumption; its good fire resistance can also improve the safety of the building; during an earthquake, the elasticity of rock wool can absorb some of the vibration energy, assist the galvanized steel plate in resisting deformation, and together maintain the integrity of the seismic joint.

[0028] Waterproof and air-tight membrane 3 is fully applied to the galvanized steel plate on the inner side of the expansion joint, covering the entire surface of the galvanized steel plate on the inner side and extending to both edges of the galvanized steel plate.

[0029] The width of the waterproof and air-tight membrane 3 is at least 50mm wider than the galvanized steel plate on both sides, ensuring a tight and seamless bond between it and the cement mortar surface layer on the inner side of the exterior wall 1. The cement mortar surface layer provides a flat bonding base for the waterproof and air-tight membrane 3, while also transferring the sealing effect of the waterproof and air-tight membrane 3 to the entire interior building envelope.

[0030] Function: Together with the cement mortar surface layer, it forms a building airtight layer. The continuous and sealed airtight layer can effectively prevent indoor air from leaking to the outside through the seismic joint, maintain stable indoor temperature and pressure, and reduce energy loss; prevent indoor moisture from penetrating into the rock wool layer, and avoid the rock wool 6 from getting damp and losing its thermal insulation performance; its material flexibility can adapt to the slight deformation of the seismic joint to a certain extent, ensuring long-term airtight effect.

[0031] Waterproof and breathable membrane 4 is fully applied to the galvanized steel plate on the outside of the expansion joint, covering the entire surface of the galvanized steel plate on the outside side and extending to both sides.

[0032] The width is greater than the galvanized steel sheet by at least 50mm on each side, and it is tightly bonded to the waterproof coating layer 16 on the outer side of the exterior wall 1 to form a complete waterproof system. The waterproof coating layer 16 provides an adhesive base for the waterproof and breathable membrane 4, so that the two work together to enhance the waterproof effect.

[0033] Function: Together with the waterproof coating layer 16, it forms a waterproof layer on the exterior wall 1 of the building, effectively blocking rainwater and snowmelt from entering the interior of the building, preventing moisture from penetrating the rock wool layer and the main structure, and protecting the building's insulation and structural performance; its breathability allows internal moisture to escape, avoiding condensation and rot caused by moisture accumulation; when the seismic joint deforms, the waterproof and breathable membrane 4 can deform together with the galvanized steel plate and the main structure, maintaining the continuity of the waterproof function.

[0034] In this embodiment, the auxiliary structures include:

[0035] External insulation rock wool strip 7 is installed on the surface of the main structure on the outdoor side, extending from the main structure to the seismic joint, and connecting with the rock wool and waterproof breathable membrane 4 at the seismic joint to form a continuous insulation layer.

[0036] The external insulation rock wool strip 7 is connected to the main structure by pasting or mechanical fixing. It is tightly attached to the waterproof and breathable membrane 4 on the outside of the galvanized steel plate at the anti-vibration joint to ensure the continuity and integrity of the insulation layer.

[0037] Function: To ensure the continuity of thermal insulation of the exterior wall 1, avoid thermal insulation discontinuity at the seismic joint, and maintain consistent thermal performance of the thermal insulation system of the entire exterior wall 1; together with the rock wool 6 inside the seismic joint, to enhance the thermal insulation effect of the building and reduce heat exchange between indoors and outdoors.

[0038] Deformable aluminum panels are wrapped around the outer insulation rock wool strip 7 at the seams, and the color is consistent with the paint on the outer wall 1, forming the exterior decorative surface of the building's outer wall 1.

[0039] It is fixed to the main structure with screws and other fasteners, and together with the aluminum alloy cover plate 9, it forms the outer decoration and protection system of the shock-resistant joint.

[0040] Functions: To decorate the exterior wall 1 of a building, making it consistent with the overall architectural design style and enhancing the building's aesthetics; to adapt to the deformation requirements of seismic joints, so that it can deform with the main structure during an earthquake without cracking or falling off; to block rainwater intrusion, protect the internal external insulation rock wool strips 7 and rock wool from erosion, and maintain stable insulation performance.

[0041] In this embodiment, the supporting and fixing structure also includes:

[0042] Galvanized steel pipe 10, as the supporting keel of aluminum alloy cover plate, is arranged on the inner side of aluminum alloy cover plate along the length of the anti-vibration joint, forming an integral supporting frame with aluminum alloy cover plate.

[0043] The aluminum alloy cover plate 10 is welded or bolted to the galvanized embedded plate 11, which is pre-embedded in the main structure. The galvanized steel pipe 10 transfers the load of the aluminum alloy cover plate to the galvanized embedded plate 11 and the main structure through its own strength and rigidity.

[0044] Function: To provide stable support for the aluminum alloy cover plate, ensuring that the cover plate will not deform or fall off when subjected to external forces such as wind load and self-weight, and to maintain the normal function of the seismic joint; to enhance the structural stability of the entire seismic joint node, and to resist seismic forces together with materials such as galvanized steel plate and rock wool.

[0045] The galvanized embedded plate 11 is pre-embedded in the main structure, located inside the main structure on both sides of the seismic joint, and serves as the fixing base for the keel.

[0046] The galvanized embedded plate 11 is fixed to the main structure by anchor bolts 13. The anchoring depth and spacing of the anchor bolts 13 meet the relevant standard requirements, ensuring a firm connection between the galvanized embedded plate 11 and the main structure. Galvanized steel pipes 10 are welded or bolted to the galvanized embedded plate 11 to form a stable support system.

[0047] Function: To firmly connect the galvanized steel pipe 10 and other supporting components to the main structure, providing reliable anchoring force for the entire seismic joint support system; to ensure that the seismic joint will not lose stability due to loosening of the supporting components during long-term use, thus ensuring structural safety.

[0048] The heat insulation pad 12 is disposed between the galvanized embedded plate 11 and the main structure, and is located on the surface of the galvanized embedded plate 11 that contacts the main structure.

[0049] The thermal insulation pad 12 is tightly attached between the galvanized embedded plate 11 and the main structure. The pressure of the anchor bolt 13 makes the two tightly bonded, forming a complete thermal insulation bridge system.

[0050] Function: To block heat from being transferred to the outside through the galvanized embedded plate 11 and the keel, reduce indoor heat loss, and improve the building's thermal insulation performance; reduce surface condensation caused by cold bridge effect, prevent material corrosion and mildew caused by condensation, and extend the service life of the seismic joint.

[0051] Anchor bolt 13 is used to fix the galvanized embedded plate 11 to the main structure. One end of the anchor bolt 13 is anchored inside the main structure, and the other end is connected to the galvanized embedded plate 11.

[0052] The anchoring depth and spacing of anchor bolts 13 meet the relevant standard requirements, ensuring a firm connection between the galvanized embedded plate 11 and the main structure. The material and strength of anchor bolts 13 are capable of withstanding various loads on the seismic joint under earthquake conditions.

[0053] Function: To provide stable anchoring force for the galvanized embedded plate 11, ensuring that the galvanized embedded plate 11 will not loosen or fall off under long-term use and seismic action; to ensure a reliable connection between the support system of the seismic joint node and the main structure, and to maintain the structural stability of the entire node.

[0054] External insulation rock wool strip 7 is installed on the surface of the main structure on the outdoor side and is connected with external insulation rock wool strip 7 to form a continuous external wall insulation system 1.

[0055] Connection relationship: The external insulation rock wool strip 7 is connected to the main structure by pasting or mechanical fixing. It is tightly combined with the external insulation rock wool strip 7 at the anti-vibration joint to ensure the continuity and integrity of the insulation system.

[0056] Functions: Ensure the continuity of thermal insulation of the exterior wall 1, avoid thermal insulation discontinuity at the seismic joint, and work together with the exterior insulation rock wool strip 7 to enhance the thermal insulation effect of the building and reduce building energy consumption; its fire resistance can also improve the safety of the building and prevent the spread of fire.

[0057] EPDM rubber strip 8 is installed at the joint of deformable aluminum plate, and fits tightly against the joint edge of the aluminum plate.

[0058] EPDM rubber strip 8, through its own adhesion and elasticity, tightly bonds with the splicing edges of the deformable aluminum plate, forming a continuous waterproof barrier.

[0059] Function: Effectively prevents rainwater from entering the shockproof joint along the splicing gaps of the deformable aluminum plate, protecting the internal rock wool and insulation layer from erosion; its good elasticity and weather resistance can maintain the waterproof effect for a long time and adapt to different environmental conditions and temperature changes.

[0060] The aluminum alloy cover plate 9 covers the outside of the deformable aluminum plate and is arranged along the length of the seismic joint to form the last decorative and protective layer on the outside of the seismic joint.

[0061] It is fixed to the galvanized steel pipe 10 by screws and other fasteners, and closely fits with the deformable aluminum plate to form the outer decorative system of the seismic joint.

[0062] Function: As a decorative cover for seismic joints, it provides an aesthetically pleasing appearance that harmonizes with the overall architectural design; it also possesses a certain degree of deformation capacity to adapt to the deformation requirements of seismic joints under earthquake loads, maintaining the normal functionality of the seismic joints; and it protects the internal deformable aluminum plates, rock wool, and other materials from the influence of the external environment.

[0063] The finished stainless steel seismic joint cover plate 5 is located on the outermost side of the indoor seismic joint, covering the entire indoor side seismic joint area.

[0064] Connection relationship: It is connected to the main structure by bolts and other connectors. The bolts pass through the prefabricated stainless steel seismic joint cover plate 5, galvanized steel plate and waterproof air-tight membrane 3 and are fixed to the main structure. An appropriate deformation space is left between the cover plate and the galvanized steel plate to accommodate displacement during earthquakes.

[0065] Function: As a sealing and decorative component for indoor seismic joints, it protects the internal galvanized steel plate, rock wool, and waterproof air-tight membrane, preventing indoor personnel and items from coming into contact with these materials and ensuring safety; it provides a decorative effect to coordinate with the interior decoration style; it meets the deformation requirements of the seismic joint, allowing it to deform with the main structure during an earthquake without being damaged, ensuring the normal use of the interior.

[0066] In some specific embodiments, the thickness of the first galvanized steel plate 2 and the second galvanized steel plate 21 is 1 mm.

[0067] In some specific embodiments, the spacing of the φ6 plastic expansion anchor bolts 15 is 400mm.

[0068] In some specific embodiments, rock wool is filled between the first galvanized steel plate 2 and the second galvanized steel plate 21, and between the second galvanized steel plate 21 and the deformable aluminum plate.

[0069] In some specific embodiments, the finished expansion joint aluminum alloy cover plate is a sealing and decorative component for indoor seismic joints and meets the deformation requirements.

[0070] In some specific embodiments, deformable aluminum plates are wrapped around the seams of the outer surface layer of the external insulation rock wool strip 7.

[0071] The working method of this utility model includes the following steps:

[0072] Step 1: During the construction of the main structure, a seismic joint is reserved. A 1.5mm thick galvanized steel plate is installed along the entire length of the joint, both inside and outside, ensuring a 200mm allowance for deformation. φ6 plastic expansion bolts (15mm) are used for fixing, forming a robust sealed layer. During construction, the location and width of the seismic joint are first determined according to the architectural design requirements. Then, galvanized steel plates are installed at the corresponding positions on both the inside and outside of the main structure, and fixed to the main structure using plastic expansion bolts (15mm). The flatness and verticality of the galvanized steel plates are ensured to provide a stable base for subsequent construction.

[0073] Step Two: Fill the space between the inner and outer galvanized steel sheets with rock wool, ensuring a tight seal to achieve the insulation function of the seismic joint and meet thermal performance requirements. The rock wool filling should be uniform and thorough, avoiding gaps or excessive density. During the filling process, use professional tools to cut the rock wool into appropriate sizes, then fill each piece into the seismic joint, gently compacting it to ensure a tight fit between the rock wool and the galvanized steel sheet, while preserving the fiber structure of the rock wool to maintain its insulation performance.

[0074] Step 3: Fully apply the waterproof and airtight membrane 3 to the galvanized steel plate on the interior side, ensuring its width is at least 50mm wider than the galvanized steel plate on each side. Together with the 20mm cement mortar layer on the interior side of the exterior wall, it forms a continuous and sealed airtight layer, enhancing the building's airtightness. Before construction, clean and dry the surface of the galvanized steel plate. Then, cut the waterproof and airtight membrane 3 to the dimensions required by the design and use a special adhesive or fastener to fully apply it to the galvanized steel plate, ensuring a firm bond without bubbles or wrinkles. The edges of the waterproof and airtight membrane 3 should be tightly fitted to the cement mortar layer, forming a seamless connection. If necessary, sealant 14 can be used for sealing.

[0075] Step 4: Fully apply the waterproof and breathable membrane 4 to the outdoor galvanized steel plate, ensuring its width is at least 50mm wider than the galvanized steel plate on each side. This forms a continuous, sealed waterproof layer with the exterior wall coating waterproof layer 16, ensuring the building's exterior wall waterproofing effect. Before applying the waterproof and breathable membrane 4, clean and dry the surface of the galvanized steel plate to remove dust, oil, and other impurities. Cut the waterproof and breathable membrane 4 to a suitable size and apply it fully using a special adhesive or fastener, ensuring a firm, bubble-free, and wrinkle-free adhesion. The edges of the waterproof and breathable membrane 4 should be tightly fitted to the coating waterproof layer 16 to form a complete waterproof system. Sealing may be necessary to ensure the continuity of the waterproofing effect.

[0076] Step 5: Install prefabricated aluminum alloy expansion joint covers on the indoor side, fixing them to the main structure using specialized accessories for sealing and decoration. This ensures the expansion joints meet deformation requirements while providing an aesthetically pleasing interior appearance. When installing the aluminum alloy covers, first determine their position and orientation to align with the direction of the seismic joint. Use specialized fasteners to connect the covers to the main structure. The fasteners should be evenly distributed and appropriately spaced to ensure the covers are securely and evenly installed. The joints between the covers should be tight, and any gaps should be sealed with sealant 14 to prevent air leakage and dust ingress.

[0077] Step Six: Adhere the external insulation rock wool strips 7 to the main structure on the outdoor side. Cover the seams of the outer surface layer of the insulation layer with deformable aluminum panels matching the color of the exterior wall paint. Simultaneously, install EPDM rubber strips 8 at the joints of the deformable aluminum panels to prevent rainwater seepage and protect the insulation layer. The external insulation rock wool strips 7 should be adhered to using a specialized adhesive, following the dimensions and spacing specified in the design, ensuring the flatness and adhesion strength of the insulation layer. The deformable aluminum panels should be installed after the external insulation rock wool strips 7 are installed. Secure them to the main structure using screws or other fasteners, ensuring a tight fit between the aluminum panels and the insulation layer. The EPDM rubber strips 8 at the joints should be installed flat and without warping, forming an effective waterproof barrier.

[0078] Step 7: Install the external insulation rock wool strips 7, aluminum alloy cover plates 9, galvanized steel pipes 10, galvanized embedded plates 11, thermal insulation pads 12, and anchor bolts 13, ensuring that all components are firmly connected to form a complete seismic joint node system, achieving multiple functions such as energy saving, waterproofing, airtightness, and earthquake resistance. The installation of the external insulation rock wool strips 7 should be connected to the insulation layer of the main structure, using dedicated fasteners for fixation, ensuring accurate positioning and firm adhesion. The installation of the aluminum alloy cover plates 9 should be carried out after the deformable aluminum plates are installed, using screws and other fasteners to fix them to the galvanized steel pipes 10, ensuring a tight fit between the cover plates and the aluminum plates, forming a uniform appearance. The installation of components such as galvanized steel pipes 10, galvanized embedded plates 11, thermal insulation pads 12, and anchor bolts 13 should be carried out in the order and manner required by the design, ensuring that the connections between each component are firm and stable, forming a complete support and fixing system, providing reliable structural protection for the seismic joint node.

[0079] Example

[0080] (I) Building Overview

[0081] This embodiment uses a kindergarten building as an example. The building is a three-story structure located in an area with a seismic fortification intensity of 8 degrees. It has a total height of 12 meters and a building area of ​​3,000 square meters. To meet the requirements of ultra-low energy consumption buildings and ensure the building's safety under seismic action, the seismic joint design of this utility model is adopted.

[0082] (II) Construction of Seismic Joint Nodes

[0083] Galvanized steel sheets: 1.5mm thick galvanized steel sheets are installed at the seismic joints on the inner and outer sides of the building's exterior walls, with bending shapes adapted to the seismic joints. The galvanized steel sheets are fixed to the main structure using φ6 plastic expansion bolts at 15mm intervals, with a 200mm allowance for deformation to accommodate deformation under seismic loads.

[0084] Rock wool: Rock wool is filled between the inner and outer galvanized steel plates. The rock wool is 100mm thick and has a density of 120kg / m³. 3 It was filled tightly, completely filling the internal space of the earthquake-resistant joint, forming a core layer for thermal insulation.

[0085] Waterproof and air-tight membrane 3: A waterproof and air-tight membrane 3 is fully applied to the galvanized steel plate on the inner side of the expansion joint. Its width is 60mm wider than both sides of the galvanized steel plate, and it is tightly bonded to the 20mm thick cement mortar layer on the inner side of the exterior wall, together forming the building's airtight layer. The waterproof and air-tight membrane 3 is made of multi-layer composite materials, possessing excellent waterproof performance and airtightness, effectively preventing indoor air leakage and moisture penetration.

[0086] Waterproof and breathable membrane 4: A waterproof and breathable membrane 4 is fully applied to the galvanized steel plate on the exterior side of the expansion joint. Its width is 60mm wider than both sides of the galvanized steel plate, forming a continuous and closed waterproof layer with the outer wall coating waterproof layer 16. The waterproof and breathable membrane 4 uses a microporous structure material, allowing water vapor molecules to pass through while completely blocking the intrusion of liquid water, achieving excellent breathability and waterproof performance.

[0087] Prefabricated aluminum alloy expansion joint cover plates: Prefabricated aluminum alloy expansion joint cover plates are installed on the interior side cladding, covering the outside of the galvanized steel plate and waterproof air-tight membrane 3, and fixed to the main structure with special accessories. The color of the aluminum alloy cover plate is coordinated with the interior decoration style, meets the deformation requirements of the seismic joint, and can elastically deform with the main structure under the action of earthquake, and continue to maintain its sealing and decorative functions after restoring its original shape.

[0088] External insulation rock wool strip 7: External insulation rock wool strip 7 is installed on the surface of the main outdoor structure. The rock wool strip is 80mm thick and has a density of 100kg / m³. 3 Extending from the main structure to the seismic joint, it connects with the rock wool and waterproof breathable membrane 4 at the seismic joint, ensuring the continuity of the external wall insulation.

[0089] Deformable aluminum panels: Deformable aluminum panels are used to cover the seams of the exterior finish layer of the external insulation rock wool strip 7, with a color consistent with the exterior wall paint. The deformable aluminum panels have a corrugated structure, which can adapt to the multi-directional deformation requirements of the seismic joints under earthquake action, while blocking rainwater intrusion and protecting the internal insulation layer.

[0090] Galvanized steel pipe 10: As a supporting keel for the aluminum alloy cover plate, it is arranged along the length of the anti-vibration joint on the inner side of the aluminum alloy cover plate and welded to the galvanized embedded plate 11 at a spacing of 600mm, providing stable support for the aluminum alloy cover plate.

[0091] Galvanized embedded plate 11: Pre-embedded in the main structure, located inside the main structure on both sides of the seismic joint, and fixed to the main structure by anchor bolts 13 with an anchoring depth of 120mm and a spacing of 800mm, providing a firm anchoring point for the galvanized steel pipe 10.

[0092] Insulation pad 12: Made of polyurethane foam, it is placed between the galvanized embedded plate 11 and the main structure. It is 20mm thick and effectively blocks heat transfer, reducing indoor heat loss.

[0093] Anchor bolt 13: Made of high-strength stainless steel with a diameter of 10mm, it is used to fix the galvanized embedded plate 11 to the main structure, ensuring a firm connection between the galvanized embedded plate 11 and the main structure.

[0094] External insulation rock wool strip 7: External insulation rock wool strip 7, with a thickness of 100mm and a density of 120kg / m³, is installed on the outside of the exterior wall.3 It connects with the external insulation rock wool strip 7, further enhancing the building's thermal insulation effect.

[0095] EPDM rubber strip 8: Installed at the joints of deformable aluminum plates, with a thickness of 5mm, effectively preventing rainwater from entering the anti-vibration joint along the joints.

[0096] Aluminum alloy cover plate 9: An aluminum alloy cover plate 9 with a thickness of 1.2mm is covered on the outside of the deformable aluminum plate and connected to the galvanized steel pipe 10 to form the last decorative and protective layer on the outside of the shockproof joint.

[0097] (III) Construction Process

[0098] Step 1: During the construction of the main structure, seismic joints were reserved according to the architectural design requirements. Galvanized steel plates with a thickness of 1.5mm were installed along the height direction on both the inner and outer sides of the seismic joints. φ6 plastic expansion anchor bolts were used to fix them at 400mm intervals to form a solid closed layer.

[0099] Step 2: Rock wool was filled between the inner and outer galvanized steel plates to ensure a tight seal, thereby achieving the insulation function of the anti-vibration joint and meeting the thermal performance requirements.

[0100] Step 3: A waterproof and airtight membrane 3 was fully applied to the galvanized steel plate on the interior side, ensuring that its width was 60mm wider than the galvanized steel plate on both sides. It was tightly bonded to the 20mm thick cement mortar layer on the interior side of the exterior wall, forming a continuous and closed airtight layer that enhanced the airtightness of the building.

[0101] Step 4: A waterproof and breathable membrane 4 was fully applied to the galvanized steel plate on the exterior side, ensuring that its width was 60mm wider than both sides of the galvanized steel plate. This formed a continuous and closed waterproof layer with the waterproof coating layer 16 on the exterior wall, ensuring the waterproof effect of the building's exterior wall.

[0102] Step 5: Prefabricated aluminum alloy expansion joint covers were installed on the indoor side and fixed to the main structure with special accessories to seal and decorate, ensuring that the expansion joint meets the deformation requirements and providing an aesthetically pleasing indoor effect.

[0103] Step Six: External insulation rock wool strips 7 were pasted on the outdoor side along with the main structure, and deformable aluminum plates were used to cover the seams of the outer surface layer of the insulation layer. At the same time, EPDM rubber strips 8 were installed at the joints of the deformable aluminum plates to effectively prevent rainwater from seeping in and protect the insulation layer.

[0104] Step 7: Install external insulation rock wool strips 7, aluminum alloy cover plates 9, galvanized steel pipes 10, galvanized embedded plates 11, heat insulation pads 12, and anchor bolts 13 to ensure that all components are firmly connected, forming a complete anti-vibration joint system, achieving multiple functions such as energy saving, waterproofing, airtightness, and earthquake resistance.

[0105] (iv) Effect Verification

[0106] Thermal performance: Testing showed that the heat transfer coefficient of the kindergarten building's exterior walls was 0.28 W / (m²). 2 ·K), which is lower than the national standard limit of 0.3W / (m²) for the heat transfer coefficient of exterior walls of ultra-low energy consumption buildings. 2 ·K), effectively reducing the heat exchange between indoors and outdoors, achieving good thermal insulation effect.

[0107] Air tightness performance: The overall air tightness test results of the building showed that the number of air changes per hour was 0.4 times under a pressure difference of 50Pa, which is lower than the national standard of 1.0 times, indicating that the air tightness layer of the building is continuously effective and reduces energy loss.

[0108] Waterproof performance: In simulated rainfall tests, there was no leakage at the seismic joints, demonstrating good waterproof performance and ensuring the dryness and safety of the building interior.

[0109] Seismic performance: Through seismic simulation tests, the seismic joint nodes can remain stable under an 8-degree earthquake. The deformation of materials such as galvanized steel plates and rock wool is within the reserved range, and the structural integrity of the nodes is not damaged, thus meeting the seismic requirements of the building.

[0110] In summary, the seismic joint design of ultra-low energy consumption buildings in this embodiment has achieved good results in practical applications, effectively solving the problems of thermal performance, airtightness and waterproof performance of traditional seismic joint designs in ultra-low energy consumption buildings. At the same time, it has good seismic performance, providing reliable technical support for the development of ultra-low energy consumption buildings.

[0111] By adopting the above-disclosed technical solution of this utility model, the following beneficial effects are obtained:

[0112] This invention forms a multi-layered insulation barrier by filling the space between galvanized steel plates on both the inner and outer walls with rock wool, and by installing external insulation rock wool strips 7 on the exterior side. These insulation materials work together to effectively block heat transfer between the interior and exterior, significantly reducing the building's heat transfer coefficient. Taking a kindergarten building as an example, the measured heat transfer coefficient of the exterior wall is only 0.28 W / (m²). 2 The heat transfer coefficient of the exterior wall of ultra-low energy consumption buildings is far below the national standard limit of 0.3 W / (m²), which is significantly lower than the limit of 0.3 W / (m²) for the heat transfer coefficient of the exterior wall of ultra-low energy consumption buildings. 2 This not only significantly reduces indoor heat loss in winter and outdoor heat intrusion in summer, lowering building heating and air conditioning energy consumption, but also improves indoor thermal comfort, providing a warm and comfortable educational environment for young children.

[0113] II. Excellent airtightness

[0114] The waterproof and airtight membrane 3 is fully applied to the galvanized steel plate on the inner side of the expansion joint, forming a continuous and sealed airtight layer with the cement mortar surface layer on the inner side of the exterior wall. This airtight layer acts like a "sealed coat" for the building, effectively preventing indoor air from leaking to the outside through the seismic joint. In actual testing, the kindergarten building had only 0.4 air changes per hour under a pressure difference of 50 Pa, far below the national standard of 1.0 changes per hour. Such airtight performance not only reduces energy loss but also prevents unfiltered outdoor air carrying pollutants from entering the room, ensuring indoor air quality and safeguarding the health of the children.

[0115] III. Reliable waterproof performance

[0116] A waterproof and breathable membrane 4 is fully applied to the galvanized steel plate on the exterior side of the expansion joint, forming a robust waterproof barrier together with the waterproof coating layer 16 on the exterior wall. Simultaneously, EPDM rubber strips 8 are installed at the joints of the deformable aluminum panels, further enhancing the waterproofing effect. In simulated rainfall tests, no leakage was observed at the seismic joint nodes. Even under extreme weather conditions such as heavy rain, the building's interior remains dry and safe, preventing damage to interior decorations and mold growth caused by leaks, extending the building's lifespan, and reducing maintenance costs.

[0117] IV. Outstanding seismic performance

[0118] The galvanized steel sheet has a 200mm allowance for deformation and is fixed with φ6 plastic expansion bolts at 15mm intervals. This ensures the stability of the joint while allowing for elastic deformation during earthquakes. The rock wool itself also has a certain degree of elasticity, which can absorb some of the vibration energy.

[0119] V. Exquisite decorative effect

[0120] The colors of the finished aluminum alloy expansion joint covers and deformable aluminum panels are coordinated with the overall architectural design, adding to the building's aesthetic appeal. The aluminum alloy covers and panels not only possess excellent decorative properties but also superior weather resistance, capable of withstanding long-term erosion from environmental factors such as ultraviolet radiation and acid rain, maintaining vibrant colors and a smooth surface. The unique wave-shaped or zigzag structure of the deformable aluminum panels, while meeting deformation requirements, also adds rich lines and layers to the building's facade, enhancing its artistic quality and making the kindergarten a landmark building in the region.

[0121] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A seismic joint node structure for ultra-low energy consumption buildings, characterized in that: The structure includes a first galvanized steel plate (2) installed on the inner side of the exterior wall (1) and a second galvanized steel plate (21) installed on the outer side of the exterior wall. The first galvanized steel plate (2) and the second galvanized steel plate (21) are sealed with rock wool (6). The first galvanized steel plate (2) is fully covered with a waterproof and airtight membrane (3). The width of the waterproof and airtight membrane (3) on both sides is ≥50mm compared with the width of the first galvanized steel plate (2). The waterproof and airtight membrane (3) and the cement mortar surface layer on the inner side of the exterior wall (1) form a continuous and closed airtight building layer. The second galvanized steel plate (21) is covered with... The waterproof and breathable membrane (4) is fully adhered. The width of the waterproof and breathable membrane (4) on both sides is ≥50mm compared with the width of the second galvanized steel plate (21) on both sides. The waterproof and breathable membrane (4) and the waterproof coating layer (16) on the outside of the exterior wall form a continuous and closed waterproof layer. The first galvanized steel plate (2) and the second galvanized steel plate (21) are both fixed with φ6 plastic expansion anchor bolts (15) and both have a 200mm deformation allowance. An aluminum alloy cover plate (9) is provided at the seam on the inside of the exterior wall, and a deformable aluminum plate is provided at the seam of the outer surface layer of the outer thermal insulation rock wool strip (7) on the outside of the exterior wall.

2. The ultra-low energy consumption building seismic joint node structure according to claim 1, characterized in that, The thickness of the first galvanized steel plate (2) and the second galvanized steel plate (21) is 1 mm.

3. The ultra-low energy consumption building seismic joint node structure according to claim 1, characterized in that, The spacing of the φ6 plastic expansion anchor bolts (15) is 400mm.

4. The ultra-low energy consumption building seismic joint node structure according to claim 1, characterized in that, The rock wool (6) is filled between the first galvanized steel plate (2) and the second galvanized steel plate (21), and between the second galvanized steel plate (21) and the deformable aluminum plate.

5. The ultra-low energy consumption building seismic joint node structure according to claim 1, characterized in that, The aluminum alloy cover plate (9) is a sealing and decorative component for indoor seismic joints and meets the deformation requirements.

6. The ultra-low energy consumption building seismic joint node structure according to claim 1, characterized in that, The deformable aluminum plate is wrapped around the seam of the outer surface layer of the external insulation rock wool strip (7).

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