A roof settlement joint closure structure
By installing a U-shaped base plate, a waterproof layer, and a deformable cover plate within the settlement joint of the floor slab, the problem of poor sealing and easy leakage in traditional settlement joint sealing methods is solved, thereby improving the waterproof performance and service life of the building.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE CONSTR DECORATION OF CHINA CONSTR NO 7 ENG BUREAU
- Filing Date
- 2025-05-29
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional settlement joint sealing methods suffer from problems such as inadequate sealing, easy leakage, and difficult maintenance, which affect the waterproof performance and service life of buildings.
A settlement joint device is installed in the settlement joint of the floor slab, including a base plate, a waterproof layer and a cover plate. The base plate is a U-shaped plate, the waterproof layer is composed of corrugated gusseted rubber strips and horizontal rubber strips, and the cover plate can adapt to the displacement of the joint and is fixed by fasteners and angle steel to enhance sealing and stability.
It improves the sealing performance of the floor slab, simplifies the construction and installation process, and enhances the waterproof performance and durability of the building.
Smart Images

Figure CN224452058U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a structure for sealing roof settlement joints. Background Technology
[0002] Floor slab settlement joints are vertical separation joints in building structures designed to prevent damage caused by uneven foundation settlement in different areas. They typically divide the building into independent units from the foundation to the roof, allowing each part to settle freely. These joints penetrate floor slabs, walls, and other structural components, are filled with elastic material to cushion deformation, and are covered with metal or rubber plates to ensure sealing and aesthetics. Commonly found in high-rise buildings with significant geological differences, at the junction of new and old buildings, or with complex shapes, they effectively prevent structural cracking and leakage, ensuring building safety and durability. Proper design, balancing structural separation, material elasticity, and decorative finishing, is one of the key measures for settlement control.
[0003] In building roofing projects, settlement joints are structural joints designed to accommodate building deformation. However, traditional settlement joint sealing methods suffer from problems such as inadequate sealing, easy leakage, and difficult maintenance, affecting the building's waterproofing performance and service life. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a structure for sealing roof settlement joints, which solves the problems of inconvenient installation and poor sealing performance of settlement joint devices.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a roof settlement joint sealing structure, including a settlement joint formed between the left and right cross sections of a floor slab, a settlement joint device is provided in the settlement joint, the settlement joint device includes a base plate, the base plate is a U-shaped plate with an upward opening, the two ends of the U-shaped plate extend outward to form horizontal sections that fit against the floor slab, and the horizontal sections on both sides of the base plate are fixed to the floor slab by fasteners;
[0006] A waterproof layer is provided above the base plate. The waterproof layer includes an expansion section and connecting sections on both sides of the expansion section. The expansion section is a wavy accordion strip, and the connecting section is a horizontal strip integrally formed with the accordion strip. The connecting section is fixedly connected to the floor slab on both sides of the settlement joint.
[0007] Angle steel is fixed to the outer floor slabs on both sides of the base plate. The angle steel is anchored to the floor slab by mechanical bolts. A cover plate is installed on the top of the settlement joint. The cover plate can adapt to the displacement of the settlement joint and is fixed to the angle steel on both sides by angle brackets.
[0008] Optionally, the cover plate includes a bent section and fixed sections disposed on both sides of the bent section. The bent section is an inverted V-shape, and the fixed sections on both sides are fixed to the angle steel by angle brackets.
[0009] Optionally, the fastener includes a pressure plate and cement nails. The pressure plate presses down on the horizontal sections on both sides of the base plate, and the cement nails pass through the pressure plate and the horizontal sections of the base plate to secure the floor slab. Sealant is applied between the pressure plate and the floor slab.
[0010] Optionally, a fireproof layer is provided in the U-shaped groove of the base plate, and the fireproof layer is fireproof rock wool.
[0011] Optionally, the angle bracket and the angle steel are respectively provided with threaded holes and are fixedly connected by suitable bolts.
[0012] Optionally, the floor slab is covered with ceramic tiles, the height of which is higher than the height of the cover plate.
[0013] This utility model provides a structure for sealing roof settlement joints, which has the following advantages:
[0014] This utility model provides a roof settlement joint sealing structure. A settlement joint device is installed within the settlement joint of the floor slab, and a waterproof layer is installed within the device. The waterproof layer includes an expansion joint and connecting sections on both sides of the expansion joint. The expansion joint is a corrugated accordion strip, whose elasticity enhances the device's ability to adapt to displacement. The connecting sections are horizontal strips integrally formed with the accordion strip. The connecting sections are fixedly connected to the floor slabs on both sides of the settlement joint, preventing dust and moisture from passing through the floor slab gaps and enhancing the floor slab's sealing performance. Similarly, a cover plate is installed on the settlement joint device. The bent section of the cover plate can adapt to the movement of the settlement joint, thereby reducing compressive stress and protecting the entire floor slab structure. The settlement joint device is not only simple and convenient to install, but also greatly improves the floor slab's sealing performance. Attached Figure Description
[0015] Figure 1 This is a planar sectional view of the present invention;
[0016] Figure 2 for Figure 1 A schematic plan view of the base plate of the intermediate settlement joint device;
[0017] Figure 3 for Figure 1 A plan view of the cover plate of the settlement joint device.
[0018] In the diagram: 1. Floor slab; 2. Settlement joint device; 3. Base plate; 4. Angle steel; 5. Mechanical bolt; 6. Cover plate; 7. Angle bracket; 8. Fireproof rock wool; 9. Waterproof layer; 10. Ceramic tile; 11. Cement nail; 21. Expansion section; 22. Connecting section; 31. Bending section; 32. Fixing section. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0020] Please see Figures 1 to 3 This utility model provides a technical solution: a roof settlement joint sealing structure, comprising a settlement joint formed between the left and right cross sections of a floor slab 1, a settlement joint device 2 provided within the settlement joint, the settlement joint device 2 including a base plate 3, the base plate 3 being an upward-opening U-shaped plate, the two ends of the U-shaped plate extending outward to form horizontal sections that fit against the floor slab 1, the horizontal sections on both sides of the base plate 3 being fixed to the floor slab 1 by fasteners, a waterproof layer 9 provided above the base plate 3, the waterproof layer 9 including an expansion joint 21 and connecting sections 22 provided on both sides of the expansion joint 21, the expansion joint 21 being a wavy accordion adhesive. The strip enhances the device's ability to adapt to displacement. The connecting section 22 is a horizontal rubber strip integrated with the accordion rubber strip. The connecting section 22 is fixedly connected to the floor slabs 1 on both sides of the settlement joint to ensure the device's tight sealing. Angle steel 4 is fixed on the external floor slabs 1 on both sides of the base plate 3. The angle steel 4 is anchored to the floor slabs 1 by mechanical bolts 5. A cover plate 6 is installed on the top of the settlement joint. The cover plate 6 can adapt to the displacement of the settlement joint, further enhancing the device's ability to adapt to displacement. The two sides of the cover plate 6 are fixed to the angle steel 4 by angle brackets 7 to ensure that the entire settlement joint device 2 is installed stably and firmly.
[0021] In this embodiment, as a preferred option, the cover plate 6 includes a bent section 31 and fixed sections 32 disposed on both sides of the bent section 31. The bent section 31 is an inverted V-shape. When the floor slabs 1 on both sides of the settlement joint are subjected to force displacement, the V-shaped cover plate 6 can adaptively shrink or expand the included angle, thereby buffering the stress of the floor slabs 1. The fixed sections 32 on both sides of the bent section 31 are fixed to the angle steel 4 by angle brackets 7. The angle brackets 7 and the angle steel 4 are respectively provided with threaded holes and are fixedly connected by suitable bolts to ensure that the cover plate 6 is stably and tightly fixed to the floor slabs 1.
[0022] In this embodiment, as a preferred option, the fasteners include a pressure plate and cement nails 11. The pressure plate presses on the horizontal sections on both sides of the base plate 3, and the cement nails 11 pass through the pressure plate and the horizontal sections of the base plate 3 to be fastened in the floor slab 1. The pressure plate can make the horizontal sections of the base plate 3 fit tightly against the floor slabs 1 on both sides, reducing gaps and preventing dust or moisture from passing through. A sealant is provided between the pressure plate and the floor slab 1, and the sealant further enhances the sealing performance of the device.
[0023] In this embodiment, as a preferred option, a fireproof layer is provided in the U-shaped groove of the base plate 3. The fireproof layer is fireproof rock wool 8 with a thickness of 100mm and a density of 100kg / cubic meter, which can improve the fireproof and flame-retardant capabilities of the settlement joint device 2.
[0024] In this embodiment, as a preferred option, ceramic tiles 10 are covered on the floor slab 1. The height of the ceramic tiles 10 is higher than the height of the cover plate 6. The ceramic tiles 10 serve as decoration and can cover the settlement joint, making the exterior of the roof look beautiful.
[0025] In this invention, the working steps of the device are as follows:
[0026] 1. Fix the base plate 3 and place it at the settlement joint position so that the horizontal sections on both sides of the base plate 3 are in contact with the floor slabs 1 on both sides. Press the pressure plate against the horizontal section and nail it into the floor slab 1 with cement. Seal the edge gaps with sealant.
[0027] 2. Fill with fireproof layer, fill the U-shaped groove at the bottom with fireproof rock wool 8;
[0028] 3. Fix the waterproof layer 9, set the expansion section 21 of the waterproof layer 9 at the settlement joint, and fix the connecting sections 22 on both sides to the floor slabs 1 on both sides with cement nails 11.
[0029] 4. Fix angle steel 4: Fix angle steel 4 on the outer floor slabs 1 on both sides of the base plate 3, and fasten angle steel 4 to the floor slab 1 with mechanical bolts 5.
[0030] 5. Fix the cover plate 6, fix the fixing sections 32 on both sides of the cover plate 6 to the corner brackets 7, and then tighten the threaded holes of the corner brackets 7 on both sides and the threaded holes of the angle steel 4 on both sides accordingly.
[0031] 6. Install ceramic tile 10. Above the height of cover plate 6, fix ceramic tile 10 for concealment and decoration.
[0032] The specific embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A roof settlement joint closure structure comprising: The settlement joint is formed between the left and right cross sections of the floor slab (1). A settlement joint device (2) is provided in the settlement joint. The settlement joint device (2) includes a base plate (3). The base plate (3) is a U-shaped plate with an upward opening. The two ends of the U-shaped plate extend outward to form horizontal sections that fit with the floor slab (1). The horizontal sections on both sides of the base plate (3) are fixed to the floor slab (1) by fasteners. A waterproof layer (9) is provided above the base plate (3). The waterproof layer (9) includes an expansion section (21) and a connecting section (22) provided on both sides of the expansion section (21). The expansion section (21) is a wavy accordion strip, and the connecting section (22) is a horizontal strip integrally provided with the accordion strip. The connecting section (22) is fixedly connected to the floor slab (1) on both sides of the settlement joint. Angle steel (4) is fixed on the outer floor slab (1) on both sides of the base plate (3). The angle steel (4) is anchored to the floor slab (1) by mechanical bolts (5). A cover plate (6) is provided on the top of the settlement joint (2). The cover plate (6) can adapt to the displacement of the settlement joint. The two sides of the cover plate (6) are fixed to the angle steel (4) by angle brackets (7).
2. A structure for sealing a roof settlement joint as defined in claim 1, wherein: The cover plate (6) includes a bent section (31) and fixed sections (32) on both sides of the bent section (31). The bent section (31) is an inverted V-shape, and the fixed sections (32) on both sides are fixed to the angle steel (4) by angle brackets (7).
3. A structure for sealing a roof settlement joint according to claim 1 or 2, wherein: The fasteners include a pressure plate and cement nails (11). The pressure plate is pressed on the horizontal sections on both sides of the base plate, and the cement nails (11) pass through the pressure plate and the horizontal sections of the base plate and are fastened in the floor slab (1). A sealant (12) is provided between the pressure plate and the floor slab (1).
4. A structure for sealing a roof settlement joint according to claim 1 or 2, wherein: A fireproof layer is provided in the U-shaped groove of the base plate (3), and the fireproof layer is fireproof rock wool (8).
5. A structure for sealing a roof settlement joint according to claim 1 or 2, wherein: The angle bracket (7) and the angle steel (4) are respectively opened with threaded holes and are fixedly connected by suitable bolts.
6. A structure for sealing a roof settlement joint according to any one of claims 1-5, wherein: The floor slab (1) is covered with ceramic tiles (10), and the height of the ceramic tiles (10) is higher than the height of the cover plate (6).