Roof deformation joint structure
By setting a multi-line defense structure of a base, sealing plate, caulking plate, support plate and cover plate on the roof expansion joint, the problem of easy damage of the roof expansion joint in the existing technology is solved, and the effect of simplifying construction and improving sealing and durability is achieved.
Patent Information
- Application Number
- CN202422942728.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The existing roof expansion joint structure is easily damaged by temperature changes and earthquakes, leading to problems such as water seepage and mildew. In addition, the construction is complex and costly, affecting the safety and service life of the building.
A multi-line defense structure consisting of a base, sealing plates, caulking plates, supporting plates and cover plates is adopted. Light metal U-shaped plates, asphalt hemp fibers, caulking materials and sealants are used to fix them through nails to form multi-layer sealing and support, simplifying the construction steps and improving the waterproofing, fireproofing and thermal insulation properties.
It achieves efficient sealing and stability of roof expansion joints, extends service life, reduces construction complexity and cost, and ensures the safety and durability of buildings.
Smart Images
Figure CN223410306U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of building structures, in particular to a roof deformation joint structure. Background Art
[0002] Roof expansion joints are an integral part of modern architecture. They not only impact a building's safety and stability but also its functionality and lifespan. They primarily serve to mitigate stress concentrations in the roof structure caused by temperature fluctuations, earthquakes, and other factors, thereby protecting the building's overall structural safety. With seasonal changes, roofing materials expand or contract due to rising or falling temperatures. Expansion joints absorb this thermal expansion and contraction, preventing cracks in the roof. In earthquake-prone areas, expansion joints can reduce the impact of seismic waves on buildings, enhancing their earthquake resistance.
[0003] For the overall safety of the building, it is necessary to take protective measures for the roof expansion joints. The current expansion joint construction method does not fully consider the impact of the deformation of the roof panel under the action of temperature stress, wind load and earthquake. The current practice is to fill the expansion joint with polyethylene rods. However, the alternating cycle of hot and cold weather will cause the various component materials to undergo expansion and contraction deformation. Due to different expansion coefficients and inconsistent deformation, the polyethylene round rods filled in the expansion joints can easily be squeezed and damaged, resulting in gaps in the expansion joints. Rainwater can easily leak into the roof through the gaps, causing thermal bridge phenomena such as mildew and condensation, which undermines the durability and effectiveness of the building. In addition, the existing expansion joint structure usually has components such as bolts and slide rods, and a concrete protective cover plate is set on the top. The construction is troublesome, the structure and installation process are relatively complicated, and the installers need a high level of technical skills and a long construction period, which increases the construction cost.
[0004] In order to overcome the shortcomings of the existing technology, protect the expansion joints from damage, and ensure the overall safety and service life of the building, there is an urgent need for a roof expansion joint structure that is simple and reasonable in structure, easy to construct, and has strong weather resistance and sealing performance. Utility Model Content
[0005] The utility model is intended to provide a roof expansion joint structure, which is mainly used for the construction of roof expansion joints. Through a roof expansion joint protection structure with reasonable structure, convenient construction, good overall performance and no influence on the normal function of the roof expansion joint, the roof expansion joint is protected from damage, thereby ensuring the overall safety and service life of the building.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A roof expansion joint structure includes a protective structure arranged on the roof expansion joint, the protective structure includes a base located on both sides of the roof expansion joint and a sealing plate, a caulking plate, a supporting plate and a cover plate nested and covered on the base in sequence, the two sides of the sealing plate are overlapped on the base, the sealing plate is provided with a first groove located in the roof expansion joint, and the first groove is provided with a sealing material, the caulking plate is installed on the sealing plate, the caulking plate is provided with a second groove, the second groove is located in the first groove, and the second groove is filled with caulking material, the supporting plate is transversely fixed on both sides of the caulking plate, the cover plate covers the caulking material, and the gap between the cover plate and the supporting plate is filled with sealant.
[0008] The principles and advantages of this solution are:
[0009] Existing roof expansion joints are typically constructed with bolt connections, slide bars, and a concrete protective cover plate on top. During installation, tools such as wrenches are used to adjust the slide bar position and tighten it. Subsequently, formwork and cast-in-place protective cover plates are required. Overall, the structure is complex and the construction steps are tedious. Due to varying levels of skill among installation operators, improper installation can easily lead to defects such as impaired sealing, which can in turn cause damage to the building, such as water seepage and cracking. Therefore, considering the ease of installation and the overall performance of the protective structure, the principles and advantages of this solution are as follows:
[0010] 1. A base is set on both sides of the roof deformation joint. The bases on both sides have a certain height to form the first line of defense. A small amount of water that penetrates through the external waterproofing measures will be blocked by the base, thereby improving the anti-seepage performance. Existing construction technology often uses waterproof membranes to extend and lay directly from the deformation joint. When the waterproof membrane ages, this line of defense will lose its effect and cannot protect the roof deformation joint, resulting in water seepage and other phenomena that damage the building structure. Therefore, this solution uses a sealing plate with a first groove to overlap the base. The groove forms the second line of defense, which not only blocks the path of water leakage from the top to the bottom, but also ensures that the defense line will not fail. The sealing material with excellent internal performance forms the third line of defense, which is not only waterproof and sealable, but also has the function of heat preservation and fire prevention.
[0011] The caulking plate is mounted on the sealing plate. The caulking plate has a second groove located within the first groove, serving as the fourth line of defense. This groove is filled with caulking compound. The filler within the caulking plate further seals and insulates the structure, providing the fifth line of defense. The support plates, fixed laterally to either side of the caulking plate, serve as the sixth line of defense, supporting and protecting the caulking plate and sealing plate. The cover plate covers the caulking compound, and the gap between the cover plate and support plate is filled with sealant. This seventh line of defense prevents rainwater, ultraviolet rays, and other detrimental substances from directly impacting the underlying structure.
[0012] 2. Considering the structural stability, rationality, and ease of construction, the components of this solution are interlocked and can move and deform with the roof expansion joint structure. They fit tightly to both sides of the expansion joint, ensuring excellent overall sealing and thermal insulation. Installation requires only three main steps: laying, filling, and fixing. Due to the presence of the first and second grooves, the entire installation can be completed in one step, eliminating the need for multiple manual adjustments and tightening required by traditional bolt and slide rod structures. The overall structure is easy to construct.
[0013] The various components of the overall protective structure are linked together layer by layer. The multiple lines of defense not only improve the protection performance, but also do not affect the normal deformation and displacement function of the roof expansion joints, achieving better results and having the characteristics of long service life.
[0014] Preferably, as an improvement, the base is a strip cast in concrete, and the base is coplanar with the roof expansion joint.
[0015] Taking into account both performance and construction costs, the base is typically constructed as a concrete strip. Having the base coplanar with the roof expansion joint facilitates construction, maximizing contact area with the sealing plate and improving sealing effectiveness.
[0016] Preferably, as an improvement, the sealing plate is a U-shaped plate made of light metal, with an upper end in a straight line shape.
[0017] Considering the importance of this line of defense, the use of light metal sealing plates can achieve a longer service life. In addition, lightweight U-shaped metal plates are easy to process, low in cost and easy to manually carry and lay.
[0018] Preferably, as an improvement, the sealing material filled in the bottom of the first groove is asphalt hemp.
[0019] In order to make this line of defense have the effect of weather resistance, heat preservation and fire prevention, asphalt hemp fiber is filled in the first groove. Asphalt hemp fiber has excellent performance, strong weather resistance, fire resistance and heat preservation, as well as sealing and waterproof properties. Combined with the U-shaped first groove, it further enhances the structure's weather resistance, heat preservation, water resistance and fire prevention properties.
[0020] Preferably, as an improvement, the caulking plate consists of an upper plate and a lower plate, supports are provided between the upper plate and the lower plate every 500 mm, and the space between the upper plate and the lower plate is filled with caulking material, which is caulking paste.
[0021] Based on the characteristics of the roof expansion joint, the roof panels on both sides will undergo relative displacement, so the caulking plates cannot be directly connected. The upper and lower plates are caulked with elastic caulking paste to prevent cracking. This does not affect the normal deformation function of the roof expansion joint, but also has a good sealing effect to prevent water seepage caused by cracking.
[0022] Preferably, as an improvement, the support plate is a T-shaped steel plate, the inner corner of the lower end is fitted to the outer corner of the upper plate, and the transverse end of the support plate is provided with through holes every 500mm-600mm along the installation direction.
[0023] T-shaped support plates are installed on both sides to protect the sealing plate, caulking plate, and base sandwiched between them. The inner corner of the T-shaped structure fits over the outer corner of the caulking plate, creating a tighter connection, more even force transmission, and better protection. Considering stability and ease of construction and installation, through holes are provided at 500mm-600mm intervals on the transverse ends of the T-shaped structure for driving nails for fixing.
[0024] Preferably, as an improvement, the base, sealing plate, caulking plate and supporting plate are fixed to both sides of the roof deformation joint by nails, and the spacing between adjacent nails is 500mm-600mm.
[0025] The connection between the overall structure abandons the more cumbersome connection methods such as bolts and screws. The use of nails can complete the installation efficiently and quickly, shortening the construction period. It also ensures the direct connection of the structure is stable, convenient to use and saves construction costs. Considering the stability and ease of construction and installation, nails are used for fixing, and the spacing is consistent with the spacing of the above-mentioned through holes.
[0026] Preferably, as an improvement, the cover plate is a 5 mm thick steel plate, the width of which is greater than the width of the roof deformation joint structure.
[0027] Taking into account the long-term erosion of the roof by rain, wind, frost, and people stepping on it, a protective cover plate needs to be installed on the top of the expansion joint structure. Commonly used plates include aluminum plates, hard plastic plates, steel plates, etc. Steel plates are selected as protective cover plates based on comprehensive consideration of strength and durability. As the seventh line of defense, it can prevent rainwater, ultraviolet rays and other substances that damage the structural performance from directly acting on other structures below, thereby extending the overall service life of the structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a schematic diagram of the roof expansion joint structure of Example 1 of the present utility model.
[0029] Figure 2 This is an exploded view of a protective structure according to embodiment 1 of the present invention.
[0030] Figure 3 This is a diagram showing the arrangement of caulking material, sealing material and sealant in Example 1 of the present utility model.
[0031] Figure 4 This is a schematic diagram of the layout of the sealing plate in Example 1 of the present utility model.
[0032] Figure 5 This is a schematic diagram of the layout of the caulking plates and support plates in Example 1 of the present utility model.
[0033] Figure 6 This is a schematic diagram of filling the caulking paste in Example 1 of the utility model. DETAILED DESCRIPTION
[0034] The following is further described in detail through specific implementation methods:
[0035] The reference numerals in the drawings of the specification include: roof panel 1, sealing plate 2, caulking plate 3, base 4, nails 5, support plate 6, cover plate 7, caulking material 8, sealing material 9, and sealant 10.
[0036] Example 1 is basically as shown in the attached Figure 1-6 As shown:
[0037] This embodiment is applicable to conventional roof expansion joints, such as the attached Figure 1 As shown in the figure, this solution sets the protective structure on both sides of the roof expansion joint, as shown in the attached Figure 2 、 3 As shown, the protective structure includes a base 4 located on both sides of the roof deformation joint and a sealing plate 2, a caulking plate 3, a support plate 6 and a cover plate 7 nested and covered on the base 4 in sequence. The base 4 is a strip cast with concrete, which is fixed on both sides of the roof deformation joint. In actual use, the size of the base 4 is selected according to the final roof elevation. While ensuring the function, the top elevation of the final cover plate 7 is consistent with the roof elevation. In this embodiment, the size of the base 4 is selected to be 150mm wide and 300mm high. The base 4 is coplanar with the roof deformation joint, which is helpful for construction and has the largest contact area with the sealing plate 2, thereby improving the sealing effect. The bases 4 on both sides have a certain height. As the first line of defense for the protective structure, a small amount of water seepage that breaks through the external waterproofing measures will be blocked by the base 4, which has the effect of improving the anti-seepage performance. As shown in the attached figure Figure 1 and attached Figure 3 As shown, the sealing plate 2 is a U-shaped light metal plate. The sealing plate 2 is provided with a first groove located in the roof deformation joint, and a sealing material 9 is provided in the first groove. The upper end of the sealing plate 2 is overlapped on the base 4 in a straight line. Compared with traditional waterproof membranes, the use of light metal plates can achieve higher durability and extend the service life of the structure. The first groove provided on the U-shaped light metal plate forms a second line of defense, blocking the path of water leakage from the top to the bottom. The sealing material 9 filled in the bottom of the first groove of the U-shaped light metal plate is asphalt hemp fiber, which has weather resistance, water resistance and fireproof properties. Asphalt hemp fiber has excellent waterproof sealing, fireproof and heat-insulating properties, and is very suitable for use as a sealing material 9. It can achieve very good results in combination with the U-shaped light metal plate to form a third line of defense to protect the structure.
[0038] As attached Figure 5 、 6As shown, the caulking plate 3 is mounted on the sealing plate 2. The caulking plate 3 has a second groove located within the first groove and is filled with caulking compound 8. The caulking plate 3 consists of an upper plate and a lower plate, with supports provided every 500 mm between the upper and lower plates. The caulking compound 8 is filled between the upper and lower plates. The second groove on the lower plate is located within the first groove on the U-shaped light metal plate. Supports are provided between the upper and lower plates. The spacing of the supports is determined based on the force applied to the plates. In this embodiment, the spacing is every 500 mm to ensure support performance and maintain parallelism between the upper and lower plates after the caulking compound is applied. The caulking compound 8 sandwiched between the upper and lower plates is a resilient, crack-resistant caulking compound. Since the roof panels on both sides of the roof expansion joint will undergo relative displacement, in order not to affect the normal function of the roof expansion joint, the upper and lower plates of the caulking plate 3 cannot be directly connected. The upper and lower plates are caulked with a caulking paste that has elasticity and prevents cracking. While not affecting the normal function of the expansion joint, it can also achieve a good sealing effect and prevent water seepage caused by cracking.
[0039] As attached Figure 1 The support plate 6 shown is transversely fixed on both sides of the caulking plate 3. The support plate 6 is a T-shaped steel plate, and the inner corner of the lower end is fitted to the outer corner of the upper plate. The transverse end of the support plate is provided with through holes every 500mm-600mm along the installation direction. The base 4, sealing plate 2, caulking plate 3, and support plate 6 are fixed to both sides of the roof deformation joint by nails 5. The fixed spacing is selected according to their force performance. In this embodiment, a nail 5 is set every 500mm for reinforcement. Abandoning the traditional bolt connection method, there is no need for manual multiple adjustments and tightening like the traditional bolt slide rod structure. More efficient nails 5 are selected to reinforce the protective structure to ensure the overall firmness. Due to the presence of the first groove and the second groove, the overall installation can be completed in one step. The cover plate 7 covers the filler 8. The cover plate 7 is a 5mm thick steel plate with a width greater than the width of the roof deformation joint structure. The gap between the cover plate 7 and the support plate 6 is filled with sealant 10. The sealant 10 mainly seals the gap between the cover plate 7 and the support plate 6, forming the last line of defense, which can not only limit the cover plate 7 but also seal and waterproof. The roof deformation joint structure of this scheme is formed by the base 4, the sealing plate 2, and the caulking plates 3, the support plates 6, and the cover plates 7 arranged layer by layer on the sealing plate 2. The structure is reasonable and strict, the overall protection structure is interlocked, and the multiple lines of defense effectively improve the protection performance. When the roof deformation joint is deformed, it does not affect the normal deformation and displacement function of the roof deformation joint, and better results are achieved compared to the existing technology. The construction is convenient, and the protective structure with light metal as the main body has excellent weather resistance, and the high-performance caulking material and caulking material can ensure sealing, waterproofing, fireproofing and heat insulation. The combined protection structure can effectively protect the roof deformation joint from damage, ensuring the overall safety and service life of the building.
[0040] The above description is merely an embodiment of the present invention, and the commonly known specific technical solutions and / or features of the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be considered as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A roof expansion joint structure, comprising a protective structure provided on the roof expansion joint, characterized in that: The protective structure includes a base located on both sides of the roof deformation joint and a sealing plate, a caulking plate, a supporting plate and a cover plate nested and covered on the base in sequence. The two sides of the sealing plate are overlapped on the base. The sealing plate is provided with a first groove located in the roof deformation joint, and the first groove is provided with a sealing material. The caulking plate is installed on the sealing plate, and the caulking plate is provided with a second groove. The second groove is located in the first groove, and the second groove is filled with caulking material. The supporting plate is fixed horizontally on both sides of the caulking plate, the cover plate covers the caulking material, and the gap between the cover plate and the supporting plate is filled with sealant.
2. The roof expansion joint structure according to claim 1, characterized in that: The base is a strip body cast in concrete, and the base is coplanar with the roof deformation joint.
3. The roof expansion joint structure according to claim 2, characterized in that: The sealing plate is a U-shaped plate made of light metal, and the upper end is in a straight shape.
4. The roof expansion joint structure according to claim 3, characterized in that: The sealing material filled in the bottom of the first groove is asphalt hemp.
5. The roof expansion joint structure according to claim 4, characterized in that: The caulking plate consists of an upper plate and a lower plate, a support is provided between the upper plate and the lower plate every 500 mm, and a caulking material is filled between the upper plate and the lower plate, and the caulking material is a caulking paste.
6. The roof expansion joint structure according to claim 5, characterized in that: The support plate is a T-shaped steel plate, the inner corner of the lower end is fitted to the outer corner of the upper plate, and the transverse end of the support plate is provided with through holes every 500mm-600mm along the installation direction.
7. The roof expansion joint structure according to any one of claims 1 to 6, characterized in that: The base, sealing plate, caulking plate and supporting plate are fixed on both sides of the roof deformation joint by nails, and the spacing between adjacent nails is 500mm-600mm.
8. The roof expansion joint structure according to any one of claims 1 to 6, characterized in that: The cover plate is a 5mm thick steel plate, and its width is greater than the width of the roof deformation joint structure.