Deformation joint suitable for light steel awning and metal facing outer wall
The solution of using additional angle steels and a water stop strip with an aluminum alloy cover addresses structural gaps between light steel awnings and exterior walls, improving waterproofing and durability while maintaining aesthetic appeal.
Patent Information
- Application Number
- CN202422395753.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Improper treatment of the gap between the light steel canopy and the exterior wall may lead to rainwater leakage and wind and rain invasion, affecting the safety of the building and its use function, especially when it is above the entrances and exits of the personnel.
The combined structure of additional square steel, water stop belt and aluminum alloy metal cover plate is adopted, and connected to the light steel canopy and metal decorative exterior wall through the water stop belt, sealed with sealing glue and water-filled plate, combined with the design of the V-shaped water stop belt to compensate for structural deformation and ensure waterproof performance and aesthetics.
Effectively prevent rainwater leakage, enhance building waterproofing performance, improve aesthetics and durability, reduce maintenance costs, protect structural edges, and extend building life.
Smart Images

Figure CN223103883U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a deformation joint applicable to a light steel awning and a metal veneer exterior wall, belonging to the technical field of the structure and construction of deformation joints. Background Art
[0002] In the process of building design and construction, a light steel awning is usually closely connected to the exterior wall to ensure the continuity and aesthetics of the overall structure. However, in actual projects, due to the different stress characteristics and structural behaviors of the light steel awning and the exterior wall, gaps may be formed between the two. Especially when these gaps are above the entrance of the building for people, how to deal with these gaps becomes particularly important. If not properly handled, rainwater may leak through the gaps into the entrance area, affecting the safety of pedestrians passing by. At the same time, the gaps may also cause wind and rain intrusion or air penetration, further increasing the difficulty of building maintenance. Therefore, during the construction and maintenance stages, these gaps must be properly handled, using appropriate sealing materials and processes to ensure the functionality and durability of the building, and to ensure the safety and comfort of the entrance area. Reasonable gap treatment can not only extend the service life of the building, but also improve the overall safety of the building and the user experience.
[0003] In summary, the gap treatment between the light steel awning and the exterior wall is crucial for the safety and service function of the building. Especially when the gap is above the entrance of the building for people, appropriate sealing measures must be taken to ensure waterproofing, windproofing and the durability of the structure. This not only helps to eliminate potential safety hazards and protect the safety of people, but also reduces the building maintenance cost and improves the overall use experience. Therefore, reasonable design and construction of the gap treatment plan are the keys to ensuring the long-term safe operation and comfortable use of the building. Summary of the Invention
[0004] The technical problem to be solved by the utility model is: how to solve the common problems of structural stress, water seepage and aesthetics between the awning and the exterior wall through reasonable structural layout and material selection.
[0005] To solve the above problems, the utility model provides a deformation joint applicable to a light steel awning and a metal veneer exterior wall, which includes an additional square steel arranged in the metal veneer exterior wall. A waterstop is connected between the outer wall of the additional square steel above the light steel awning and the top of the light steel awning, and the additional square steel below the light steel awning is connected to the bottom of the light steel awning through an aluminum alloy metal cover plate.
[0006] Preferably, the width of the deformation joint is between 50 - 500 mm.
[0007] Preferably, the waterstop is fixedly connected to the additional square steel and the keel of the light steel awning respectively through self-tapping screws.
[0008] Preferably, the additional square steel is connected and fixed to the exterior wall with metal veneer by screws.
[0009] Preferably, sealant is filled between the edge of the water stop belt and the outer wall of the additional square steel.
[0010] Preferably, a flashing board is provided above the connection between the edge of the water stop belt and the additional square steel.
[0011] Preferably, the additional square steel forms an attachment frame, the upper part of which is located above the light steel canopy, and the lower part of which is located below the light steel canopy.
[0012] More preferably, the upper part of the attachment frame is at a position not less than 250 mm higher than the top surface of the light steel canopy, the lower part of the attachment frame is flush with the bottom surface of the light steel canopy, and the aluminum alloy metal cover plate is of an L-shaped structure.
[0013] Preferably, the height of the upper edge of the water stop belt is not less than 250 mm from the top surface of the light steel canopy.
[0014] Preferably, the middle part of the water stop belt is of a V-shaped structure to ensure its ductility.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0016] 1. Compensation for structural deformation: Under the influence of factors such as temperature changes, earthquakes, and wind loads, buildings may undergo expansion, contraction, and deformation. The metal expansion joint cover plate has good elasticity and adaptability, and can effectively compensate for and absorb these deformations, preventing the gap from cracking or being damaged due to deformation.
[0017] 2. Enhanced waterproof performance: The metal expansion joint cover plate is usually designed as a waterproof structure, which can effectively prevent rainwater from seeping into the building interior through the gap between the canopy and the exterior wall. This is very important for keeping the interior of the building dry and preventing structural damage.
[0018] 3. Aesthetic appearance: The metal expansion joint cover plate can be customized and surface-treated according to the architectural design requirements, such as spraying, anodizing, baking varnish, etc., and can be coordinated with the architectural facade style, improving the overall aesthetic appearance and grade of the building.
[0019] 4. Durability: Metal materials (such as aluminum alloy, stainless steel, etc.) have high corrosion resistance, weather resistance, and durability, and can be exposed to the outdoor environment for a long time without being easily damaged, extending the building maintenance cycle and reducing the maintenance cost.
[0020] 5. Easy installation and maintenance: The metal expansion joint cover plate is reasonably designed, usually easy to install, can quickly cover the gap, and at the same time, due to the strong and durable material, the later maintenance is relatively simple and does not require frequent replacement or repair.
[0021] 6. Provide structural protection: Using metal expansion joint covers at the joints helps protect the edges and interfaces of the building structure from direct attacks by the external environment, such as rain erosion and weathering, thereby extending the service life of the building. Description of the Drawings
[0022] Figure 1 It is a schematic structural diagram of the expansion joint provided by the present utility model. Detailed Implementation Modes
[0023] To make the present utility model more obvious and understandable, the following is a detailed description with preferred embodiments and accompanying drawings.
[0024] Embodiment
[0025] As Figure 1 shown, it is an expansion joint applicable to a light steel awning and a metal veneer exterior wall provided by the present utility model, which includes an additional square steel 3 arranged in the metal veneer exterior wall 1. A waterstop 4 is connected between the outer wall of the additional square steel 3 above the light steel awning 6 and the top of the light steel awning 6. The additional square steel 3 below the light steel awning 6 is connected to the bottom of the light steel awning 6 through an aluminum alloy metal cover plate 5.
[0026] The width of the expansion joint is between 50 - 500 mm.
[0027] The additional square steel 3 is connected and fixed to the metal veneer exterior wall 1 by screws. The additional square steel 3 forms an attachment frame. The upper part of the attachment frame is above the light steel awning 6, and the lower part of the attachment frame is below the light steel awning 6. The upper part of the attachment frame is not less than 250 mm higher than the top surface of the light steel awning 6, and the lower part of the attachment frame is flush with the bottom surface of the light steel awning 6. The aluminum alloy metal cover plate 5 is of an L-shaped structure, and its appearance is anodized or fluorocarbon sprayed. The surface of the plate should be flat and smooth.
[0028] The waterstop 4 uses an ethylene propylene diene monomer (EPDM) waterstop with a thickness of 1.5 mm, which is connected and fixed to the keels of the additional square steel 3 and the light steel awning 6 respectively by self-tapping screws 2. Rubber waterproof gaskets are added during the installation of the self-tapping screws 2, and anti-corrosion treatment is carried out. A sealant 8 is filled between the edge of the waterstop 4 and the outer wall of the additional square steel 3. A flashing plate 7 (made of aluminum alloy material) is provided above the connection between the edge of the waterstop 4 and the additional square steel 3. The height of the upper edge of the waterstop 4 is not lower than 250 mm from the top surface of the light steel awning 6. The middle part of the waterstop 4 is of a V-shaped structure to ensure its ductility.
[0029] The above expansion joint applicable to a light steel awning and a metal veneer exterior wall ensures the stability and durability of the structure through precise assembly and efficient waterproof measures, while meeting the aesthetic requirements. The specific implementation process is as follows:
[0030] First, fix the additional square steel 2 on the metal veneer exterior wall 1. The additional square steel 2 above the light steel awning 6 should be installed at a position not less than 250 mm from the finished surface of the awning to ensure the flashing height, while the additional square steel 2 below the light steel awning 6 can be flush with the finished surface of the light steel awning 6 to facilitate the fixation of the aluminum alloy metal cover plate 5;
[0031] Secondly, fix one end of the waterstop 4 on the additional square steel 3 with self-tapping screws 2, and the installation height also needs to be 250 mm higher than the finished surface of the light steel awning 6. At the closing section, seal it with sealant 8 and cover it with the aluminum alloy flashing cover plate 5 to prevent rainwater erosion. The other end of the waterstop 4 is also fixed on the keel of the light steel awning 6 through self-tapping screws 2. The whole waterstop 4 is in a V shape to ensure its good ductility.
[0032] Finally, fix one end of the finished aluminum alloy metal cover plate 5 on the additional square steel 2 and the other end on the light steel awning 6, and seal the gap tightly. In this way, a structural system that takes into account structural stress, waterproofing and aesthetics is completed.
[0033] The above structure fully considers the characteristics and actual application performance of different materials. Through reasonable combination and precise construction, the problem of dealing with the deformation joint between the light steel awning and the metal veneer exterior wall is successfully solved. The final effect not only improves the waterproof performance, but also enhances the aesthetics and durability of the overall structure, providing application value for similar building structures.
Claims
1. A deformation joint applicable to a light steel awning and a metal veneer exterior wall, characterized in that, It includes an additional square steel (3) arranged inside the metal veneer exterior wall (1). A waterstop (4) is used to connect the outer wall of the additional square steel (3) above the light steel awning (6) and the top of the light steel awning (6). The additional square steel (3) below the light steel awning (6) is connected to the bottom of the light steel awning (6) through an aluminum alloy metal cover plate (5).
2. The expansion joint according to claim 1, wherein The width of the deformation joint is between 50 - 500 mm.
3. The expansion joint according to claim 1, characterized in that, The waterstop (4) is fixedly connected to the keels of the additional square steel (3) and the light steel awning (6) respectively through self-tapping screws (2).
4. The expansion joint according to claim 1, characterized in that, The additional square steel (3) is fixedly connected to the metal veneer exterior wall (1) through screws.
5. The expansion joint according to claim 1, characterized in that, Sealant (8) is filled between the edge of the waterstop (4) and the outer wall of the additional square steel (3).
6. The expansion joint according to claim 1 or 5, characterized in that, A flashing plate (7) is provided above the connection between the edge of the waterstop (4) and the additional square steel (3).
7. The expansion joint according to claim 1, wherein The additional square steel (3) forms an attached frame. The upper part of the attached frame is located above the light steel awning (6), and the lower part of the attached frame is located below the light steel awning (6).
8. The expansion joint according to claim 7, wherein The upper part of the attached frame is not less than 250 mm higher than the top surface of the light steel awning (6). The lower part of the attached frame is flush with the bottom surface of the light steel awning (6). The aluminum alloy metal cover plate (5) is of an L-shaped structure.
9. The expansion joint according to claim 1, characterized in that, The height of the upper edge of the waterstop (4) is not lower than 250 mm from the top surface of the light steel awning (6).
10. The deformation joint according to claim 1, characterized in that, The middle part of the waterstop (4) is of a V-shaped structure.