Expansion joint structure for tile roof of pseudo-classic building
By incorporating expansion joint nodes filled with flexible, non-combustible materials and a multi-layered structure into the tiled roofs of antique-style buildings, the problems of waterproofing and leakage in expansion joint design are solved, improving the waterproofing performance and expansion adaptability of the tiled roofs while maintaining the aesthetic appeal of the buildings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOSTEEL SHIJIAZHUANG ENG DESIGN & RES INST
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-08
AI Technical Summary
The existing design of expansion joints in the roof tiles of antique-style buildings cannot effectively balance expansion and waterproofing, which can easily lead to leakage, and lacks effective drainage and protection measures.
A reinforced concrete floor slab is installed in the tiled roof, and the expansion joint roof nodes are filled with flexible non-combustible material. The top and bottom of the expansion joint are covered with a cover plate, combined with an insulation layer, an elastic waterproof layer, a protective layer, a nail-holding layer and antique blue tiles. A drainage channel is set at the bottom to form a multi-layer structure to accommodate expansion and contraction and waterproof.
It achieves the functions of heat preservation and waterproofing of tiled roofs, reduces the risk of leakage, takes into account expansion and contraction performance, maintains the aesthetics of the building, and improves the quality and service life of antique-style buildings.
Smart Images
Figure CN224213550U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of construction technology for antique-style tile roofs, and in particular to a structure for expansion joints in antique-style tile roofs. Background Technology
[0002] China's ancient architecture boasts a long and rich history, with magnificent achievements. Today, the existing ancient building complexes and newly constructed replicas are vast in scale. With increasing awareness of cultural heritage, replicas of ancient architecture are playing an increasingly important role in urban construction, tourism development, and many other fields. They not only embody traditional cultural connotations but also add a unique artistic atmosphere and historical charm to the modern environment, playing a positive role in promoting national culture and enhancing the cultural taste of cities. In the construction of replicas, the roofing is a crucial step, its quality and aesthetics directly affecting the overall quality and artistic effect of the building.
[0003] Expansion joints are required on the roofs of existing large-scale antique-style buildings. Building materials expand and contract with temperature changes, and expansion joints effectively absorb these changes, preventing cracks or deformations in the roof due to thermal expansion and contraction. The common practice for expansion joint design is to first allow reinforced concrete to protrude from the roof on both sides of the expansion joint, and then install sliding prefabricated cover plates to seal it. Some projects choose to use various filling materials to try to solve the expansion and contraction adjustment problem. However, these traditional expansion joint treatments have significant drawbacks. Existing expansion joint treatments result in expansion joints that are higher than the roof surface, failing to adequately address both the expansion and contraction and waterproofing issues of the roof. Furthermore, the lack of effective drainage and protection measures at the bottom of the expansion joint easily leads to roof leaks. Utility Model Content
[0004] In order to improve the waterproofness of the roof while taking into account the expansion and contraction performance of the roof expansion joints, this application provides a structure for expansion joints in the roof of antique-style tiled buildings.
[0005] This application provides a technical solution for an expansion joint structure on an antique-style tile roof:
[0006] An expansion joint structure for an antique-style tile roof includes a reinforced concrete slab installed on the roof, with an expansion joint roof node located in the middle of the reinforced concrete slab, and the expansion joint roof node is filled with a flexible non-combustible material for sealing.
[0007] The expansion joint roof node is provided with a cover plate at the top and bottom, and the cover plate covers the top opening end and the bottom opening end of the expansion joint roof node;
[0008] The reinforced concrete floor slab is laid with an insulation layer, an elastic waterproof layer, a protective layer, a nail-holding layer, battens, and an antique-style blue tile roof from bottom to top.
[0009] The bottom of the expansion joint roof node is provided with a drainage channel, and the top of the drainage channel is connected to the bottom of the reinforced concrete floor slab.
[0010] By adopting the above technical solutions, the expansion joint roof joint is sealed with flexible non-combustible material to prevent heat transfer and adapt to expansion and contraction. The top and bottom of the expansion joint roof joint are covered with capping plates to seal the gaps and protect the internal filling material. The reinforced concrete slab is laid from bottom to top with an insulation layer, an elastic waterproof layer, a protective layer, a nail-holding layer, battens, and an antique-style tile roof, which can achieve the functions of roof insulation and waterproofing and complete the roof decoration. In addition, the drainage channel at the bottom of the expansion joint roof joint can drain accumulated water and reduce the risk of indoor leakage. This solution solves the problem of designing and constructing large-area antique-style tile roofs, which can take into account the expansion and contraction performance of the roof expansion joint, improve the waterproofing of the roof, and fully present the aesthetics of the antique-style building.
[0011] Optionally, two symmetrically arranged inclined cover plates are fixed in the middle of the cover plate, and a deformation groove is formed between the two inclined cover plates. The width of the expansion joint roof node is W, and the width of the inclined cover plate should be ≥0.7 times W.
[0012] By adopting the above technical solution, the two symmetrical inclined cover plates in the middle of the cover plate and the deformation groove they form can adapt to the expansion and contraction caused by thermal expansion and contraction at the expansion joint roof node. This allows the cover plate to adapt to the stretching deformation of the expansion joint, making it less likely for the middle part of the cover plate to break or be damaged when it stretches and deforms. This reduces the possibility of rainwater and other liquids entering the interior of the expansion joint roof node and improves the waterproofing effect at the roof expansion joint.
[0013] Optionally, the deformation groove on the cover plate at the top opening end of the expansion joint roof node is filled with polyethylene foam rods.
[0014] By adopting the above technical solution, filling the deformation groove of the cover plate at the top opening of the expansion joint roof node with polyethylene foam rods can further improve the waterproofness of the expansion joint and prevent rainwater penetration.
[0015] Optionally, the elastic waterproof layer is a continuously laid modified bitumen waterproof membrane. The modified bitumen waterproof membrane extends along both sides of the expansion joint roof node to cover the surface of the reinforced concrete floor slab, and the top of the expansion joint roof node is also sequentially covered with a modified bitumen waterproof membrane and a protective layer from bottom to top.
[0016] By adopting the above technical solution, using continuously laid modified bitumen waterproof membrane as an elastic waterproof layer can not only improve the waterproof performance of the roof, but also take into account the expansion and contraction performance of the roof expansion joints. The modified bitumen waterproof membrane extends along both sides of the expansion joint roof node to cover the surface of the reinforced concrete floor slab, and the modified bitumen waterproof membrane and protective layer are laid sequentially from bottom to top on the top of the expansion joint roof node, which can further enhance the waterproof capability at the expansion joint roof node and prevent rainwater leakage.
[0017] Optionally, an insulation board is provided between the side of the expansion joint roof node and the elastic waterproof layer.
[0018] By adopting the above technical solution, an insulation board can be installed between the side of the expansion joint roof node and the elastic waterproof layer, which can further enhance the thermal insulation performance of the roof and reduce heat loss.
[0019] Optionally, the expansion joint roof node is further provided with a cover plate on the outside of the top protective layer, and a sealing and weather-resistant adhesive layer is provided at the junction of the cover plate and the side of the protective layer. The sealing and weather-resistant adhesive layer is continuously provided along the entire length of the expansion joint roof node.
[0020] By adopting the above technical solution, a cover plate can be installed on the outside of the protective layer at the top of the expansion joint roof node to further protect the expansion joint. A continuous sealing and weather-resistant adhesive layer can be installed at the edge of the cover plate and the protective layer to improve the waterproof performance of the expansion joint and reduce rainwater leakage.
[0021] Optionally, the nail-holding layer is a fine aggregate concrete nail-holding layer with an internal steel reinforcement mesh, wherein the fine aggregate concrete nail-holding layer has a bidirectional steel reinforcement mesh.
[0022] By adopting the above technical solution, using fine stone concrete with internal bidirectional steel mesh as the nail-holding layer can enhance the structural strength and stability of the nail-holding layer, better support the battens and antique blue tile roof, and improve the stability of the entire tile roof structure.
[0023] Optionally, the nail-holding layer is provided with a plurality of water-guiding strips that cooperate with the tile strips. The tile strips and water-guiding strips are connected by expansion screws, and the expansion screws cannot penetrate the elastic waterproof layer.
[0024] By adopting the above technical solution, the water-guiding strip installed in the nail-holding layer can guide the water accumulated on the roof to drain smoothly, prevent water accumulation and leakage, and improve the roof drainage. The connection between the batten and the water-guiding strip is made by expansion screws to ensure the stability of the connection. The expansion screws do not penetrate the elastic waterproof layer, which can avoid damaging the waterproof layer and ensure the waterproof performance of the roof.
[0025] Optionally, the outer surface of the drainage channel is coated with a decorative coating, the color of which matches the color of the interior ceiling decoration layer of the antique building.
[0026] By adopting the above technical solution, a decorative coating matching the color of the interior ceiling decoration layer of the antique building is applied to the outer surface of the drainage channel, so that the appearance of the drainage channel is coordinated with the interior decoration and the overall aesthetics of the interior of the antique building are enhanced.
[0027] In summary, this application includes at least one of the following beneficial technical effects:
[0028] 1. The process involves laying an insulation layer, an elastic waterproof layer, a protective layer, a nail-holding layer, battens, and an antique-style tile roof on a reinforced concrete floor slab from bottom to top. This achieves roof insulation and waterproofing functions, completes the roof decoration, and allows for drainage channels at the bottom of the expansion joints to drain accumulated water, reducing the risk of indoor leakage. This method comprehensively solves the design and construction challenges of large-area antique-style tile roofs, taking into account both the expansion joint performance and the waterproofing of the roof, while also fully presenting the aesthetic appeal of the antique-style building.
[0029] 2. The expansion joint roof joint is equipped with a cover plate at the top and bottom, as well as a multi-layer structure including an elastic waterproof layer, which can improve the waterproofness of the roof and protect the filling material inside the expansion joint roof joint; the expansion joint roof joint is filled with flexible non-combustible material for sealing, which can prevent heat transfer and adapt to expansion and contraction deformation.
[0030] 3. The two symmetrical inclined cover plates in the middle of the cover plate and the deformation groove they form can adapt to the expansion and contraction caused by thermal expansion and contraction at the expansion joint roof node. This allows the cover plate to adapt to the stretching deformation of the expansion joint, making the middle part of the cover plate less likely to break or be damaged when it stretches and deforms. This reduces the possibility of rainwater and other liquids entering the interior of the expansion joint roof node and improves the waterproofing effect at the roof expansion joint. Attached Figure Description
[0031] Figure 1 This is a structural diagram of the expansion joint structure of the tiled roof of the antique building in this application;
[0032] Figure 2 It means Figure 1 Cross-sectional view at point 1-1.
[0033] Explanation of reference numerals in the attached drawings: 1. Reinforced concrete floor slab; 11. Drainage channel; 2. Expansion joint roof node; 21. Cover plate; 211. Inclined cover plate; 212. Deformation groove; 213. Polyethylene foam rod; 22. Flexible non-combustible material; 23. Insulation board; 24. Sealing and weather-resistant adhesive layer; 3. Insulation layer; 4. Elastic waterproof layer; 5. Protective layer; 6. Nail-holding layer; 61. Water-guiding strip; 7. Batten strip; 71. Antique blue tile roof; 8. Plastic expansion screw; 9. Expansion bolt. Detailed Implementation
[0034] The following is in conjunction with the appendix Figures 1-2 This application will be described in further detail.
[0035] This application discloses an expansion joint structure for an antique-style tiled roof. (Refer to...) Figure 1 and Figure 2 The expansion joint structure of the antique-style tile roof includes a reinforced concrete slab 1, an expansion joint roof node 2, a metal cover plate 21, an insulation layer 3, an elastic waterproof layer 4, a protective layer 5, a nail-holding layer 6, battens 7, an antique-style tile roof 71, and a stainless steel drainage channel 11. The expansion joint roof node 2 is located in the middle of the reinforced concrete slab 1 to accommodate the expansion and contraction of the building materials due to temperature changes. It is filled and sealed with a flexible non-combustible material 22. Filling the expansion joint roof node 2 with this flexible non-combustible material 22 prevents heat transfer and accommodates expansion and contraction. The metal cover plate 21 covers the top and bottom openings of the expansion joint roof node 2 to seal the gaps and protect the internal filling material. The insulation layer 3, elastic waterproof layer 4, protective layer 5, nail-holding layer 6, batten 7, and antique-style blue tile roofing 71 are laid sequentially from bottom to top on the reinforced concrete floor slab 1, achieving roof insulation, waterproofing, and other functions, and completing the roof top decoration. Stainless steel drainage channels 11 are located at the bottom of the expansion joint roof node 2, with their tops connected to the bottom of the reinforced concrete floor slab 1. The overall structure takes into account both the expansion and contraction functions of the roof expansion joint and the waterproofing function, achieving the effect of reducing roof leakage while fully presenting the aesthetics of antique architecture.
[0036] Specifically, flexible non-combustible material 22 is used to fill and seal the expansion joint roof node 2. Materials such as rock wool, glass wool, and aluminum silicate fiber felt can be used. These materials have good flexibility, allowing them to deform with the expansion and contraction of the expansion joint, while remaining non-combustible. This improves the fire safety and thermal insulation of the roof, and also prevents debris from entering, avoiding damage to the structures on both sides of the expansion joint roof node 2. The metal cover plate 21 can be made of stainless steel or aluminum alloy, or other metals with good ductility. The metal cover plate 21 at the top and bottom openings of the expansion joint roof node 2 is fixed to the upper and lower sides of the expansion joint roof node 2 using φ6 plastic expansion bolts 8.
[0037] Specifically, insulation layer 3 is laid on the reinforced concrete floor slab 1 and can be made of insulation materials such as polystyrene foam board and polyurethane foam board. These materials have a low thermal conductivity, which can effectively reduce the transfer of heat between the indoor and outdoor areas and improve the building's insulation performance. The insulation layer 3 should be laid flat and tightly to avoid gaps that could lead to heat loss. For example, polystyrene foam board can be adhered to the surface of the reinforced concrete floor slab 1 using a special adhesive.
[0038] Reference Figure 1 and Figure 2The elastic waterproof layer 4 is a continuously laid modified bitumen waterproof membrane. It extends along both sides of the expansion joint roof node 2, covering the surface of the reinforced concrete floor slab 1. A modified bitumen waterproof membrane and a protective layer 5 are also laid from bottom to top on the expansion joint roof node 2. The modified bitumen waterproof membrane has good elasticity and waterproof performance, adapting to minor roof deformations and preventing rainwater penetration. Using a continuously laid modified bitumen waterproof membrane as the elastic waterproof layer 4 not only improves the roof's waterproof performance but also accommodates the expansion and contraction performance of the roof expansion joint. The laying of the modified bitumen waterproof membrane must ensure that the overlap width meets the requirements, generally around 100mm-150mm, and it should be firmly bonded using hot-melt or cold-bonding methods. Besides modified bitumen waterproof membranes, polymer waterproof membranes, such as EPDM rubber waterproof membranes, can also be used, achieving the same waterproof effect.
[0039] Reference Figure 2 An insulation board 23 is installed between the side of the expansion joint roof node 2 and the elastic waterproof layer 4. The insulation board 23 can be made of polystyrene foam board, polyurethane foam board, etc. The insulation board 23 is used to enhance the thermal insulation performance at the expansion joint roof node 2 and reduce heat loss through the expansion joint roof node 2. The insulation board 23 must be tightly attached between the side of the expansion joint roof node 2 and the elastic waterproof layer 4 to prevent gaps from causing heat loss.
[0040] Reference Figure 2 The outer side of the protective layer 5 at the top of the expansion joint roof node 2 is also provided with a metal cover plate 21, and the metal cover plate 21 and the edge of the protective layer 5 are provided with a sealing and weather-resistant adhesive layer 24. The sealing and weather-resistant adhesive layer 24 is continuously provided along the entire length of the expansion joint roof node 2, and the sealing and weather-resistant adhesive layer 24 can be made of materials with good weather resistance such as silicone sealant.
[0041] Protective layer 5 is laid on top of the elastic waterproof layer 4, using M20 cement mortar. The function of protective layer 5 is to protect the elastic waterproof layer 4 from external damage, such as ultraviolet radiation and human contact with the elements. During construction, care should be taken to ensure the surface is smooth and compacted.
[0042] Reference Figure 1 and Figure 2The nail-holding layer 6 is a fine-aggregate concrete nail-holding layer 6 with an internal steel reinforcement mesh. The steel reinforcement mesh enhances the strength and integrity of the nail-holding layer 6. The fine-aggregate concrete has a small aggregate particle size, generally between 5mm and 20mm, to ensure the compactness and uniformity of the concrete. Multiple drainage strips 61, which cooperate with the batten strips 7, are spaced apart within the nail-holding layer 6. These drainage strips 61 guide rainwater smoothly downwards, reducing water accumulation. The batten strips 7 and the drainage strips 61 are connected using expansion bolts 9, which must not penetrate the elastic waterproof layer 4 to avoid compromising the waterproofing effect. The batten strips 7 are used to suspend the antique-style blue tile roof 71. The spacing of the batten strips 7 must be adjusted appropriately according to the size of the antique-style blue tiles to ensure that the tiles are laid neatly and firmly.
[0043] The antique-style blue tile roof 71 is laid on the batten 7, giving the antique-style building a unique appearance and cultural charm. Antique-style blue tiles are generally made of ceramic or glazed tile and are fired. The tiles must be laid in a certain order and method, from bottom to top and from one side to the other, ensuring a tight overlap between the tiles to prevent rainwater leakage.
[0044] Stainless steel drainage channel 11 is installed at the bottom of the expansion joint roof node 2, and its top is fixed to the bottom of the reinforced concrete floor slab 1 using φ6 plastic expansion bolts 8. The outer surface of the stainless steel drainage channel 11 is coated with a decorative coating, the color of which matches the color of the interior ceiling decoration layer of the antique building, in order to improve the aesthetics of the interior. The function of the drainage channel 11 is to promptly drain rainwater that may seep into the expansion joint roof node 2, preventing water accumulation from damaging the roof structure.
[0045] Specifically, refer to Figure 1 and Figure 2 Two symmetrically arranged inclined cover plates 211 are fixed in the middle of the metal cover plate 21. A deformation groove 212 is formed between the two inclined cover plates 211. The width of the expansion joint roof node 2 is W. The width of the inclined cover plate 211 should be ≥0.7 times W. The inclination angle of the inclined cover plate 211 can be adjusted according to the actual situation. Generally, it is more appropriate to be between 30° and 60°. The deformation groove 212 formed between the two inclined cover plates 211 can provide space for the expansion and contraction of the expansion joint roof node 2. When the building materials expand and contract, the inclined cover plate 211 can deform accordingly and will not hinder the normal expansion and contraction of the expansion joint roof node 2.
[0046] Polyethylene foam rods 213 are filled in the deformation groove 212 on the metal cover plate 21 at the top opening end of the expansion joint roof node 2. The polyethylene foam rods 213 have good elasticity and flexibility, and when filled in the deformation groove 212, they can further enhance the waterproof performance.
[0047] The implementation principle of the expansion joint structure for an antique-style tile roof in this application embodiment is as follows: An expansion joint roof node 2 is set in the middle of the reinforced concrete floor slab 1 and filled with flexible non-combustible material 22 to accommodate the expansion and contraction of building materials due to temperature changes, preventing cracks or deformation of the roof due to thermal expansion and contraction. The multi-layered structure, including the insulation layer 3, elastic waterproof layer 4, and protective layer 5, enhances the roof's insulation and waterproofing performance. The metal cover plate 21 covers the top and bottom of the expansion joint roof node 2, further preventing rainwater from entering. Combined with the stainless steel drainage channel 11, it can promptly drain any rainwater that may seep in, reducing the risk of roof leakage. Simultaneously, the design of the nail-holding layer 6 and the batten 7 ensures the firm installation of the antique-style tile roof 71. The overall structure balances expansion and contraction performance with improved waterproofing, representing a significant improvement over traditional expansion joint treatment methods, thus enhancing the quality and service life of the antique-style tile roof.
[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A structure for expansion joints in the roof tiles of antique-style buildings, characterized in that, It includes a reinforced concrete floor slab (1) installed on the roof, wherein a deformation joint roof node (2) is provided in the middle of the reinforced concrete floor slab (1), and the deformation joint roof node (2) is filled with flexible non-combustible material (22) for sealing; The expansion joint roof node (2) is provided with a cover plate (21) at both the top and bottom, and the cover plate (21) covers the top opening end and the bottom opening end of the expansion joint roof node (2); The reinforced concrete floor slab (1) is laid with an insulation layer (3), an elastic waterproof layer (4), a protective layer (5), a nail-holding layer (6), battens (7), and an antique-style blue tile roof (71) from bottom to top. The bottom of the expansion joint roof node (2) is provided with a drainage channel (11), and the top of the drainage channel (11) is connected to the bottom of the reinforced concrete floor slab (1).
2. The expansion joint structure for an antique-style tiled roof as described in claim 1, characterized in that, Two symmetrically arranged inclined cover plates (211) are fixed in the middle of the cover plate (21), and a deformation groove (212) is formed between the two inclined cover plates (211). The width of the deformation joint roof node (2) is W, and the width of the inclined cover plate (211) should be ≥0.7 times W.
3. The expansion joint structure for an antique-style tiled roof as described in claim 2, characterized in that, The deformation groove (212) on the cover plate (21) at the top opening of the expansion joint roof node (2) is filled with polyethylene foam rods (213).
4. The expansion joint structure for an antique-style tiled roof as described in claim 1, characterized in that, The elastic waterproof layer (4) is a continuously laid modified bitumen waterproof membrane. The modified bitumen waterproof membrane extends along both sides of the expansion joint roof node (2) to cover the surface of the reinforced concrete floor slab (1). The top of the expansion joint roof node (2) is also laid with modified bitumen waterproof membrane and protective layer (5) from bottom to top.
5. A structure for expansion joints in the roof of an antique-style building according to claim 4, characterized in that, An insulation board (23) is provided between the side of the expansion joint roof node (2) and the elastic waterproof layer (4).
6. A structure for expansion joints in the roof of an antique-style building according to claim 4, characterized in that, The expansion joint roof node (2) is further provided with a cover plate (21) on the outside of the top protective layer (5), and the cover plate (21) and the side of the protective layer (5) are provided with a sealing and weather-resistant adhesive layer (24), which is continuously provided along the entire length of the expansion joint roof node (2).
7. The expansion joint structure for an antique-style tiled roof as described in claim 1, characterized in that, The nail holding layer (6) is a fine stone concrete nail holding layer (6) with an internal steel reinforcement mesh, and the fine stone concrete nail holding layer (6) has a bidirectional steel reinforcement mesh inside.
8. A structure for expansion joints in the roof of an antique-style building according to claim 7, characterized in that, The nail-holding layer (6) is provided with a plurality of water-following strips (61) that cooperate with the tile strips (7). The tile strips (7) and the water-following strips (61) are connected by expansion screws (9), and the expansion screws (9) cannot penetrate the elastic waterproof layer (4).
9. A structure for expansion joints in the roof of an antique-style building according to claim 1, characterized in that, The outer surface of the drainage channel (11) is coated with a decorative coating, the color of which matches the color of the interior ceiling decoration layer of the antique building.