Steel structure roof-penetrating leakage-proof joint

CN224834217UActive Publication Date: 2026-10-09CHINA CONSTR FOURTH ENG DIV CORP LTD +1
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Patent Information

Application Number
CN202522238329.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-23
Publication Date
2026-10-09
Estimated Expiration
2035-10-23

AI Technical Summary

Technical Problem

[0002]近年来随着钢结构应用量的增加,以及城市规划的外立面景观效果,出屋面构架往往会有传统的钢筋混凝土构架调整为钢结构构架,常常由于钢结构穿屋面位置施工处理不到位而引起屋面渗漏,屋面渗漏的出现会引起居住体验感降低,同时增加相应的维修成本,有鉴于此,遂有了本方案的产生

Benefits of technology

1.本实用新型在传统钢结构穿屋面的基础上,进行了进一步的加强,设置了二道防渗水保险,以确保防渗效果。第一道保险为在型钢出屋面位置(楼板上方)设置反坎,反坎侧壁为斜面,当水留到从型钢留到反坎上时,反坎可以将水从斜面引出,远离型钢与楼板的连接位置;第二道保险为型钢柱和楼板连接位置内设置密封组件,通过密封组件实现二次密封。

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Abstract

The utility model relates to a kind of steel structure roof-penetrating anti-seepage nodes, including profile steel and counter ridge, counter ridge is set on the upper surface of floor and profile steel junction, profile steel passes through counter ridge and floor, the side wall of counter ridge is inclined plane, the junction of profile steel and floor is provided with sealing assembly, on the basis of traditional steel structure roof-penetrating, it is further strengthened, two anti-seepage insurance are set, to ensure anti-seepage effect.The first insurance is to set counter ridge in the profile steel roof-penetrating position (above floor), the side wall of counter ridge is inclined plane, when water is left to from profile steel to counter ridge, counter ridge can guide water from inclined plane, away from the connection position of profile steel and floor;The second insurance is to set sealing assembly in the profile steel column and floor connection position, realize secondary sealing by sealing assembly.
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Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically relating to a steel structure through-roof waterproofing node. Background Technology

[0002] In recent years, with the increasing application of steel structures and the need to enhance the facade landscape of urban planning, roof structures have often been changed from traditional reinforced concrete frames to steel structures. However, inadequate construction treatment at the points where the steel structure penetrates the roof often leads to roof leaks. These leaks reduce the living experience and increase maintenance costs. Therefore, this solution was developed. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a steel structure through-roof waterproof joint that can...

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a steel structure through-roof anti-seepage node, including steel profiles and a retaining wall, wherein the retaining wall is set on the upper surface of the connection between the floor slab and the steel profile, the steel profile passes through the retaining wall and the floor slab, the side wall of the retaining wall is inclined, and a sealing component is provided at the connection between the steel profile and the floor slab.

[0005] Furthermore, the inclined plane is an arc-shaped inclined plane.

[0006] Furthermore, the outer perimeter of the inverted retaining wall is covered with a waterproof membrane.

[0007] Furthermore, the upper end of the inclined surface is an inner arc surface with its center located inside the reverse slope, and the lower end of the inclined surface is an outer arc surface with its center located outside the reverse slope.

[0008] Furthermore, the steel section is an H-shaped steel section.

[0009] Furthermore, the sealing assembly includes a waterstop plate with an adapter hole formed on it, and the waterstop plate is fitted onto the outer surface of the steel profile.

[0010] Furthermore, the water-stopping plate is located on the inner side of the floor slab.

[0011] Furthermore, it also includes a water seepage detection component, which includes a housing with an upper opening and a clearance hole formed on the lower surface of the housing to fit the steel profile. The housing is installed below the floor slab and the steel profile extends into the housing through the clearance hole. The clearance hole and the steel profile are sealed together. The side wall of the housing has a mounting hole, and a water level sensor is installed at the mounting hole position. The water level sensor extends into the inside of the housing.

[0012] Furthermore, the lower cross-sectional shape of the housing is a cone shape, wider at the top and narrower at the bottom, and the water level sensor is located within the cone-shaped region below the housing.

[0013] Furthermore, the clearance hole and the steel section are sealed by a sealing element.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model further strengthens the traditional steel structure through-roof design by incorporating two layers of waterproofing to ensure effective seepage prevention. The first layer consists of a retaining wall installed at the point where the steel structure exits the roof (above the floor slab). The retaining wall has sloping sidewalls, allowing water to be diverted away from the connection between the steel structure and the floor slab when water flows from the steel structure onto the retaining wall. The second layer consists of a sealing component installed at the connection between the steel column and the floor slab, achieving a secondary seal.

[0015] 2. The sealing component is a water-stop plate. The water-stop plate can block the water flow path in case of leakage, ensuring the safety of the steel columns penetrating the roof from leakage risks through multiple layers of protection. Attached Figure Description Figure 1 This is a horizontal cross-sectional view of the location of the waterstop plate of this utility model; Figure 2 This is a vertical sectional view of the present invention. Figure 3 This is a vertical cross-sectional view of the structure after the water seepage detection component has been installed in this utility model.

[0016] The markings in the diagram are: 1. Steel section; 2. Reverse curb; 3. Floor slab; 4. Waterstop plate; 5. Waterproof membrane; 6. Housing; 61. Water level sensor. Detailed Implementation

[0017] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.

[0018] like Figures 1-3 As shown, this embodiment provides a steel structure through-roof waterproofing node, including steel section 1, anti-reflective retaining wall 2 and water seepage detection components, which are applied at the connection position between floor slab 3 and steel section 1.

[0019] The inverted curb 2 is installed on the upper surface of the connection between the floor slab 3 and the steel section 1. The steel section 1 passes through the inverted curb 2 and the floor slab 3. The steel section 1 is an H-shaped steel section 1. The inclined surface is an arc-shaped inclined surface. The upper end of the inclined surface is an inner arc surface with the center located inside the inverted curb 2. The lower end of the inclined surface is an outer arc surface with the center located outside the inverted curb 2. With this arrangement, when water flows from the steel section 1 to the inverted curb 2, it can be guided to both sides below the inverted curb 2 under the action of gravity, away from the connection point, to prevent leakage.

[0020] Preferably, the outer perimeter of the retaining wall 2 is covered with a waterproof membrane 5, which is either an SBS modified bitumen waterproof membrane 5 or a TPO polymer waterproof membrane 5.

[0021] A sealing assembly is provided at the connection between the steel section 1 and the floor slab 3. The sealing assembly includes a water-stop plate 4. The water-stop plate 4 has an adapter hole. The water-stop plate 4 is fitted on the outer surface of the steel section 1 and located on the inner side of the floor slab 3. The water-stop plate 4 can block the water flow path caused by leakage risk. With multiple layers of protection, the leakage risk of the steel section 1 column penetrating the roof is ensured.

[0022] like Figure 3 As shown, the water detection assembly includes a housing 6 with an upper opening. A clearance hole adapted to a steel profile 1 is formed on the lower surface of the housing 6. The housing 6 is installed below the floor slab 3, and the steel profile 1 extends into the housing 6 through the clearance hole. The clearance hole and the steel profile 1 are sealed together. Specifically, the clearance hole and the steel profile 1 are sealed by a sealing element, which is a shaped sealing ring. An outwardly extending overlap is formed at the upper outer edge of the sealing element, which overlaps the lower surface of the inner cavity of the housing 6. The side wall of the housing 6 has a mounting hole, at which a water level sensor 61 is installed, extending into the inner side of the housing 6.

[0023] Preferably, the lower cross-sectional shape of the housing 6 is a cone shape with a larger upper section and a smaller lower section. The water level sensor 61 is located in the cone-shaped area below the housing 6. With this configuration, when water seepage occurs, the water will concentrate inside the housing 6. When the water level sensor 61 detects this, it can immediately issue a warning and notify relevant personnel to carry out maintenance.

[0024] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A steel structure roof penetration waterproof joint, characterized in that: It includes a steel section and a retaining wall. The retaining wall is installed on the upper surface of the connection between the floor slab and the steel section. The steel section passes through the retaining wall and the floor slab. The side wall of the retaining wall is inclined. A sealing component is provided at the connection between the steel section and the floor slab.

2. The steel structure through-roof waterproof joint according to claim 1, characterized in that: The inclined plane is an arc-shaped inclined plane.

3. A steel structure through-roof waterproof joint according to claim 1 or 2, characterized in that: The outer perimeter of the inverted retaining wall is covered with waterproof membrane.

4. A steel structure through-roof waterproof joint according to claim 2, characterized in that: The upper end of the inclined surface is an inner arc surface with its center located inside the reverse slope, and the lower end of the inclined surface is an outer arc surface with its center located outside the reverse slope.

5. A steel structure through-roof waterproof joint according to claim 1, characterized in that: The steel section is an H-shaped steel section.

6. A steel structure through-roof waterproof joint according to claim 1 or 5, characterized in that: The sealing assembly includes a waterstop plate with an adapter hole formed on it, and the waterstop plate is fitted onto the outer surface of the steel profile.

7. A steel structure through-roof waterproof joint according to claim 6, characterized in that: The waterstop plate is located on the inside of the floor slab.

8. A steel structure through-roof waterproof joint according to claim 1, characterized in that: It also includes a water seepage detection component, which includes a housing with an upper opening and a clearance hole formed on the lower surface of the housing to fit the steel profile. The housing is installed below the floor slab and the steel profile extends into the housing through the clearance hole. The clearance hole and the steel profile are sealed together. The side wall of the housing has a mounting hole, and a water level sensor is installed at the mounting hole position. The water level sensor extends into the inside of the housing.

9. A steel structure through-roof waterproof joint according to claim 8, characterized in that: The lower cross-sectional shape of the housing is a cone shape, wider at the top and narrower at the bottom, and the water level sensor is located in the cone-shaped area below the housing.

10. A steel structure through-roof waterproof joint according to claim 8, characterized in that: The clearance hole is sealed to the steel section by a sealing element.