An outwardly draining structure between a structural deck and a curtain wall
By using a folded steel plate, gray sand bricks, and sealant to create an outward drainage structure between the curtain wall and the structural cantilever slab, the problem of rainwater accumulation is solved, achieving effective water blocking and drainage. This method is highly adaptable and cost-effective.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR FOURTH ENG DIV CORP LTD
- Filing Date
- 2025-03-28
- Publication Date
- 2026-05-29
AI Technical Summary
During the construction of super high-rise commercial office buildings, the temporary enclosure measures between the curtain wall and the structural cantilever slab during the decoration and renovation of the showroom floor cannot effectively block and drain water, causing rainwater to accumulate on the structural cantilever slab.
The structure employs an outward drainage system composed of folded steel plates, sand-lime bricks, and sealant. The front end of the folded steel plate is bent downwards and sealed to the curtain wall, the middle section is inclined to form a drainage slope, and the tail end is bent horizontally and fixed to the structural cantilever plate. Continuous and uninterrupted sealing is achieved through sealant.
It allows for adjustment of the outward tilt angle based on the height difference between the top of the curtain wall and the top surface of the cantilever slab. It is easy to construct and has a low cost. It can effectively drain rainwater and meet the drainage requirements of the exhibition floor.
Smart Images
Figure CN224300443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to an outward drainage structure between a structural cantilever slab and a curtain wall. Background Technology
[0002] During the construction of super high-rise commercial office buildings, decoration and finishing work on the exhibition floor is often incorporated into the project in advance according to the owner's display needs. The floor above the exhibition floor needs to take measures to intercept and block water to prevent rainwater and construction water from the upper floors from flowing into the exhibition area. Commercial office buildings generally have curtain wall decoration on the exterior walls. When only one layer of curtain wall is installed (the top of the curtain wall is higher than the surface of the structural cantilever slab), temporary sealing measures between the curtain wall and the structural cantilever slab are insufficient to guarantee the effectiveness of water blocking. Furthermore, because the top of the curtain wall is higher than the surface of the structural cantilever slab, rainwater will accumulate on the structural cantilever slab adjacent to the curtain wall.
[0003] In view of the above, there is an urgent need for a more reasonable drainage measure to allow rainwater to drain outward and not accumulate on the structural slab, that is, to adopt an outward-sloping drainage device. Utility Model Content
[0004] The purpose of this utility model is to solve the problems mentioned above in the background technology and to propose an outward drainage structure between the structural floating panel and the curtain wall.
[0005] The objective of this utility model can be achieved through the following technical solutions:
[0006] An outward drainage structure between a structural cantilever slab and a curtain wall includes a folded steel plate, sand-lime bricks, and sealant;
[0007] The front end of the folded steel plate is bent downward and sealed to the outside of the curtain wall with sealant. The middle part of the folded steel plate is inclined outward to form a drainage slope. The tail end of the folded steel plate is bent horizontally and fixed to the structural floating plate with gray sand bricks.
[0008] As a further aspect of this utility model, the thickness of the folded steel plate is not less than 1 mm.
[0009] As a further embodiment of this utility model, the length of the downward bending portion at the front end of the folded steel plate is not less than 50mm.
[0010] As a further embodiment of this utility model, the joint between the folded steel plate and the outer side of the curtain wall is sealed continuously and without interruption by sealant.
[0011] As a further embodiment of this utility model, the material of the folded steel plate is galvanized steel plate or weathering steel.
[0012] As a further embodiment of this utility model: the outer surface of the folded steel plate is coated with an anti-rust coating, and the coating thickness is not less than 0.05mm.
[0013] As a further embodiment of this utility model: the sealant is a one-component or two-component polyurethane sealant with an elongation at break of not less than 300%.
[0014] As a further embodiment of this utility model, the outward tilt angle of the middle part of the folded steel plate is not less than 10° relative to the horizontal plane.
[0015] As a further embodiment of this utility model, the horizontal extension length of the tail of the folded steel plate after bending is not less than 100mm.
[0016] As a further embodiment of this utility model: the folded steel plate is fixed between the plates in the horizontal direction by nails, the overlap width of the plate splicing is 15-20mm, and sealant is applied to the overlap to seal it.
[0017] The beneficial effects of this utility model are as follows: This utility model can adjust the outward tilt angle according to the height difference between the top of the single-layer curtain wall and the top surface of the floating slab, thus making it highly adaptable. It is not only convenient to construct, but also low in cost. It can meet the needs of drainage for the exhibition floor and has good application and promotion value in the temporary construction of upper structure drainage during the curtain wall installation process. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings.
[0019] Figure 1 This is a structural schematic diagram of the construction process of this utility model;
[0020] Figure 2 This is a structural schematic diagram of the folded steel plate of this utility model.
[0021] In the picture: 1. Folded steel plate; 2. Sand-lime brick; 3. Sealant; 4. Nail. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] It should be noted that the green lines in the diagram represent folded steel plate 1.
[0024] Example 1, please refer to Figure 1-2As shown, this utility model is an outward drainage structure between a structural cantilever slab and a curtain wall, comprising a folded steel plate 1, a sand-lime brick 2, and a sealant 3;
[0025] The front end of the folded steel plate 1 is bent downward and sealed to the outside of the curtain wall through sealant 3. The middle part of the folded steel plate 1 is inclined outward to form a drainage slope. The tail end of the folded steel plate 1 is bent horizontally and fixed to the structural floating plate through gray sand bricks 2.
[0026] Example 2, please refer to Figure 1-2 As shown, this utility model is an outward drainage structure between a structural cantilever slab and a curtain wall, comprising a folded steel plate 1, a sand-lime brick 2, and a sealant 3;
[0027] The front end of the folded steel plate 1 is bent downward and sealed to the outside of the curtain wall through sealant 3. The middle part of the folded steel plate 1 is inclined outward to form a drainage slope. The tail end of the folded steel plate 1 is bent horizontally and fixed to the structural floating plate through gray sand bricks 2.
[0028] The thickness of the folded steel plate 1 is not less than 1 mm, the length of the downward bending portion at the front end of the folded steel plate 1 is not less than 50 mm, the outward tilt angle of the middle part of the folded steel plate 1 relative to the horizontal plane is not less than 10°, and the horizontal extension length of the tail end of the folded steel plate 1 after bending is not less than 100 mm.
[0029] Example 3, please refer to Figure 1-2 As shown, this utility model is an outward drainage structure between a structural cantilever slab and a curtain wall, comprising a folded steel plate 1, a sand-lime brick 2, and a sealant 3;
[0030] The front end of the folded steel plate 1 is bent downward and sealed to the outside of the curtain wall through sealant 3. The middle part of the folded steel plate 1 is inclined outward to form a drainage slope. The tail end of the folded steel plate 1 is bent horizontally and fixed to the structural floating plate through gray sand bricks 2.
[0031] The thickness of the folded steel plate 1 is not less than 1 mm, the length of the downward bending portion at the front end of the folded steel plate 1 is not less than 50 mm, the outward tilt angle of the middle part of the folded steel plate 1 relative to the horizontal plane is not less than 10°, and the horizontal extension length of the tail end of the folded steel plate 1 after bending is not less than 100 mm.
[0032] The folded steel plate 1 is continuously and uninterruptedly sealed at the interface with the outer side of the curtain wall using sealant 3. The folded steel plate 1 is made of galvanized steel or weathering steel.
[0033] The outer surface of the folded steel plate 1 is coated with an anti-rust coating, and the coating thickness is not less than 0.05 mm.
[0034] Example 4, please refer to Figure 1-2As shown, this utility model is an outward drainage structure between a structural cantilever slab and a curtain wall, comprising a folded steel plate 1, a sand-lime brick 2, and a sealant 3;
[0035] The front end of the folded steel plate 1 is bent downward and sealed to the outside of the curtain wall through sealant 3. The middle part of the folded steel plate 1 is inclined outward to form a drainage slope. The tail end of the folded steel plate 1 is bent horizontally and fixed to the structural floating plate through gray sand bricks 2.
[0036] The thickness of the folded steel plate 1 is not less than 1 mm, the length of the downward bending portion at the front end of the folded steel plate 1 is not less than 50 mm, the outward tilt angle of the middle part of the folded steel plate 1 relative to the horizontal plane is not less than 10°, and the horizontal extension length of the tail end of the folded steel plate 1 after bending is not less than 100 mm.
[0037] The folded steel plate 1 is continuously and uninterruptedly sealed at the interface with the outer side of the curtain wall using sealant 3. The folded steel plate 1 is made of galvanized steel or weathering steel.
[0038] The outer surface of the folded steel plate 1 is coated with an anti-rust coating, and the coating thickness is not less than 0.05 mm.
[0039] The sealant 3 is a one-component or two-component polyurethane sealant with an elongation at break of not less than 300%.
[0040] Example 5, please refer to Figure 1-2 As shown, this utility model is an outward drainage structure between a structural cantilever slab and a curtain wall, comprising a folded steel plate 1, a sand-lime brick 2, and a sealant 3;
[0041] The front end of the folded steel plate 1 is bent downward and sealed to the outside of the curtain wall through sealant 3. The middle part of the folded steel plate 1 is inclined outward to form a drainage slope. The tail end of the folded steel plate 1 is bent horizontally and fixed to the structural floating plate through gray sand bricks 2.
[0042] The thickness of the folded steel plate 1 is not less than 1 mm, the length of the downward bending portion at the front end of the folded steel plate 1 is not less than 50 mm, the outward tilt angle of the middle part of the folded steel plate 1 relative to the horizontal plane is not less than 10°, and the horizontal extension length of the tail end of the folded steel plate 1 after bending is not less than 100 mm.
[0043] The folded steel plate 1 is continuously and uninterruptedly sealed at the interface with the outer side of the curtain wall using sealant 3. The folded steel plate 1 is made of galvanized steel or weathering steel.
[0044] The outer surface of the folded steel plate 1 is coated with an anti-rust coating, and the coating thickness is not less than 0.05 mm.
[0045] The sealant 3 is a one-component or two-component polyurethane sealant with an elongation at break of not less than 300%.
[0046] The folded steel plate 1 is fixed between the plates in the horizontal direction by nails 4. The overlap width of the plate splicing is 15-20mm, and the overlap is sealed with sealant 3.
[0047] During construction, after the curtain wall of the exhibition area is installed, the 1mm thick steel plate is folded into the required size and shape (the front end is bent downward, the middle is tilted outward, and the tail is bent horizontally) to form the folded steel plate 1. The front end of the folded steel plate 1 is coated with structural weather-resistant sealant 3, and then the front end of the folded steel plate 1 is hung on the outside of the top of the curtain wall and firmly attached to the outside connector of the curtain wall.
[0048] The tail of the folded steel plate 1 is placed flat on the structural floating plate, and then a 240mm (370mm) thick gray sand brick 2 is laid to cover it. The laying height of the gray sand brick 2 can be adjusted according to actual needs, but it is necessary to ensure that the cover is firm and the outward drainage slope of the folded steel plate 1 is not less than 10°.
[0049] Among them, the folded steel plate 1 is firmly fixed between the horizontal sections using nails 4. When splicing the sections, the overlap width should be 15-20mm. The surface is sealed with structural weather-resistant sealant 3.
[0050] Among them, the structural weather-resistant sealant 3 must not be disturbed if its strength does not meet the requirements.
[0051] The outward drainage device between the structural cantilever slab and the curtain wall in this application can adjust the outward drainage slope according to needs and actual conditions, thereby ensuring the drainage requirements of the exhibition floor. It has good application and promotion value for temporary upper structure drainage construction during the curtain wall installation process.
[0052] The foregoing has provided a detailed description of one embodiment of the present invention, but the description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the scope of the claims of the present invention.
Claims
1. An outward airflow diversion structure between a structural cantilever slab and a curtain wall, characterized in that, Includes folded steel plate (1), sand-lime brick (2), and sealant (3); The front end of the folded steel plate (1) is bent downward and sealed to the outside of the curtain wall through sealant (3). The middle part of the folded steel plate (1) is inclined outward to form a drainage slope. The tail end of the folded steel plate (1) is bent horizontally and fixed to the structural floating plate through gray sand bricks (2).
2. The outward airflow diversion structure between the structural cantilever slab and the curtain wall according to claim 1, characterized in that, The thickness of the folded steel plate (1) is not less than 1 mm.
3. The outward airflow diversion structure between the structural cantilever slab and the curtain wall according to claim 1, characterized in that, The length of the downward bending portion at the front end of the folded steel plate (1) is not less than 50mm.
4. The outward airflow diversion structure between the structural cantilever slab and the curtain wall according to claim 1, characterized in that, The folded steel plate (1) and the outer side of the curtain wall are sealed continuously and without interruption by sealant (3).
5. The outward airflow diversion structure between the structural cantilever slab and the curtain wall according to claim 1, characterized in that, The folded steel plate (1) is made of galvanized steel plate or weathering steel.
6. The outward airflow diversion structure between the structural cantilever slab and the curtain wall according to claim 1, characterized in that, The outer surface of the folded steel plate (1) is coated with an anti-rust coating, and the coating thickness is not less than 0.05 mm.
7. The outward airflow diversion structure between the structural cantilever slab and the curtain wall according to claim 1, characterized in that, The sealant (3) is a single-component or two-component polyurethane sealant with an elongation at break of not less than 300%.
8. The outward airflow diversion structure between the structural cantilever slab and the curtain wall according to claim 1, characterized in that, The outward tilt angle of the middle part of the folded steel plate (1) is not less than 10° relative to the horizontal plane.
9. The outward airflow diversion structure between the structural cantilever slab and the curtain wall according to claim 1, characterized in that, The horizontal extension length of the tail of the folded steel plate (1) after bending is not less than 100mm.
10. The outward airflow diversion structure between the structural cantilever slab and the curtain wall according to claim 1, characterized in that, The folded steel plate (1) is fixed between the plates in the horizontal direction by nails (4). The overlap width of the plate splicing is 15-20mm, and sealant (3) is applied to the overlap to seal it.