Root waterproof structure of steel column out of house
By setting seamlessly connected steel plates on the outer periphery of the steel column and laying a waterproof and thermal insulation mixed layer, the problem of degradation of waterproof performance caused by thermal expansion and contraction in the steel-concrete structure is solved, and higher waterproofing effect and building integrity are achieved.
Patent Information
- Application Number
- CN202422020567.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-08-20
AI Technical Summary
In steel-concrete structures, cracks are easily generated at the connection between the concrete roof and the steel column due to thermal expansion and contraction, resulting in a degradation of waterproofing performance.
A seamless connection between the steel plate and the concrete roof panel is arranged on the periphery of the steel column, and a waterproof and thermal insulation mixed layer is laid on it, including a mortar leveling layer, a steam barrier layer, an insulation layer, a waterproof layer and a protective layer to enhance adhesion strength and reduce the impact of thermal expansion and contraction.
Effectively block the leakage gap between steel columns and concrete roof panels, improve waterproof performance, reduce the risk of cracks caused by thermal expansion and contraction, and maintain the integrity of the building appearance.
Smart Images
Figure CN223214849U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building waterproofing, and in particular relates to a waterproof structure for the roots of steel columns leading out of a building. Background Art
[0002] Steel-concrete structures are currently widely used in various building structures. Sometimes, for the sake of architectural effect, it is inevitable that steel columns will protrude from the roof. Roof waterproofing is already a challenge, and this situation undoubtedly increases the difficulty of waterproofing. Typically, a plain concrete counter-edge is installed around the steel column at the construction site as a water stop. However, the roof has a required flashing height, and the waterproof membrane is usually installed and fixed to the column protruding from the roof. In a frame structure, the beams, slabs and columns are all concrete components with the same material properties, and generally cracks are not easy to form at the joints. However, due to the different material properties of the concrete roof and steel columns, cracks are easily formed at the joints due to thermal expansion and contraction, which makes the roof waterproofing method lose its original function and fail to meet the roof waterproofing requirements. Utility Model Content
[0003] The purpose of this utility model is to overcome the deficiencies in the prior art and provide a waterproof structure for the base of steel columns leading out of the roof, thereby reducing the risk of leakage caused by cracks caused by thermal expansion and contraction when connecting two different materials, and improving the waterproof performance of the interface between the existing concrete roof structure plate and the steel columns leading out of the roof.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a waterproof structure for the base of steel columns outside the house, comprising a concrete roof panel and steel columns passing through the concrete roof panel, wherein the waterproof structure comprises a steel plate surrounding the outer periphery of the steel column, and the steel plate is attached to the concrete roof panel, and the steel plate is seamlessly connected to the steel column;
[0005] Wherein, a waterproof and heat-insulating mixed layer surrounding the outer periphery of the steel plate is provided on the concrete roof panel and the steel plate.
[0006] Optionally, the waterproof and thermal insulation mixed layer includes a mortar leveling layer laid on the concrete roof panel and the steel plate, a vapor barrier layer arranged on the mortar leveling layer, an insulation layer arranged on the vapor barrier layer, a waterproof layer arranged on the insulation layer, and a protective layer arranged on the waterproof layer.
[0007] Optionally, the waterproof layer extends to the outer periphery of the steel column.
[0008] Optionally, one end of the waterproof layer placed on the outer periphery of the steel column is pierced with a rivet fixed to the steel column.
[0009] Optionally, the steel plate includes a first section and a second section that can be arranged around the outer circumference of the steel column, and the first section and the second section are in a U-shape or a C-shape.
[0010] Optionally, the steel plate and the steel column are fixed by welding.
[0011] Optionally, a vertical plate is provided on the steel plate.
[0012] Optionally, an anti-rust coating is provided on the steel plate and the steel column.
[0013] Compared with existing technologies, the present invention achieves the following beneficial effects: the steel plate seamlessly connects to the steel column, and the steel plate is attached to the concrete roof panel along the base of the steel column. Subsequently, when a waterproof and thermal insulation mixed layer is laid on the concrete roof panel, the waterproof and thermal insulation mixed layer can also increase the adhesion area with the steel column through the steel plate, thereby increasing the adhesion strength. Furthermore, when the waterproof and thermal insulation mixed layer is laid horizontally on the steel plate, the contact surface between the steel column and the concrete roof panel is less affected by the ambient temperature and is less likely to crack due to thermal expansion and contraction. Consequently, the gap between the steel column and the concrete roof panel is horizontally blocked by the steel plate, which can reduce or even prevent leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] Figure 1 This is a structural diagram of a preferred embodiment of the present invention when the waterproof and thermal insulation mixed layer is not laid on the concrete roof panel;
[0016] Figure 2 This is a structural diagram of a preferred embodiment of the present invention in which a waterproof and heat-insulating mixed layer is laid on a concrete roof panel;
[0017] Figure 3 This is a structural diagram of a preferred embodiment of the present invention in which a U-shaped steel plate is arranged around the outer periphery of a steel column;
[0018] Figure 4 This is a schematic structural diagram of a preferred embodiment of the present invention in which a C-shaped steel plate is arranged around the outer periphery of a steel column;
[0019] Among them, 1. Concrete roof panel; 2. Steel column; 3. Steel plate; 301, first section; 302, second section; 4. Mortar leveling layer; 5. Vapor barrier; 6. Insulation layer; 7. Waterproof layer; 8. Protective layer; 9. Rivets. DETAILED DESCRIPTION
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.
[0021] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances. Example 1
[0022] like Figure 1-Figure 4 As shown, a waterproof structure for the base of steel columns outside the house includes a concrete roof panel 1 and a steel column 2 passing through the concrete roof panel 1. The waterproof structure includes a steel plate 3 surrounding the outer periphery of the steel column 2, and the steel plate 3 is attached to the concrete roof panel 1, and the steel plate 3 and the steel column 2 are seamlessly connected; wherein, a waterproof and thermal insulation mixed layer is provided on the concrete roof panel 1 and the steel plate 3 surrounding the outer periphery of the steel plate 3.
[0023] Specifically, the steel plate 3 is seamlessly connected to the steel column 2, and the steel plate 3 is attached to the concrete roof panel 1 along the root of the steel column 2, which will not affect other subsequent processes. After the waterproof and thermal insulation mixed layer is laid on the concrete roof panel 1, the waterproof and thermal insulation mixed layer can also increase the attachment area with the steel column 2 through the steel plate 3, thereby increasing the attachment strength, and when the waterproof and thermal insulation mixed layer is laid on the steel plate 3 in the horizontal direction, its contact surface with the steel plate 3 is less affected by the ambient temperature, and is not prone to cracks due to thermal expansion and contraction, causing the gap between the steel column 2 and the concrete roof panel 1 to be horizontally blocked by the steel plate 3. The waterproof structure at the root of the steel column outside the house in this technical solution can make the entire steel column 2 and the concrete roof panel 1 into a more compact whole, thereby reducing or even blocking leakage gaps, while ensuring the airtightness of the waterproof node without adversely affecting the appearance of the building, greatly improving the waterproof performance, and reducing the possibility of gaps caused by thermal expansion and contraction.
[0024] As mentioned above, preferably, the thickness of the steel plate 2 is 4 mm to 8 mm and the width is greater than 200 mm.
[0025] Further, such as Figure 2As shown in the figure, the waterproof and thermal insulation composite layer includes a mortar leveling layer 4 laid on the concrete roof slab 1 and the steel plate 3, a vapor barrier layer 5 provided on the mortar leveling layer 4, a thermal insulation layer 6 provided on the vapor barrier layer 5, a waterproof layer 7 provided on the thermal insulation layer 6, and a protective layer 8 provided on the waterproof layer 7.
[0026] As described above, the mortar leveling layer 4 is a mixture of cement, sand and water in a certain proportion in the prior art, and is in a fluid state; the vapor barrier layer 5 is a waterproof coiled material or waterproof paint in the prior art; the thermal insulation layer 6 is one or more of foam concrete, foam glass, phenolic resin insulation board, etc.; the waterproof layer 7 is a polymer coating, polyester fiber cloth, latex paint, etc., and one or more of them can be selected for use; the protective layer 8 is asphalt mortar, blocks, fine aggregate concrete.
[0027] Furthermore, as Figure 2 shown in the figure, the waterproof layer 7 extends to the outer periphery of the steel column 2, and the waterproof layer 7 laid on the outer periphery of the steel column 2 is higher than the concrete roof slab 1 in the vertical direction. The height of this section of the waterproof layer 7 is not less than 250 mm, which can form an effective waterproof barrier between the steel column 2 and the concrete roof.
[0028] In this embodiment, a rivet 9 fixed to the steel column 2 is penetrated through one end of the waterproof layer 7 placed on the outer periphery of the steel column 2, that is, the waterproof layer 7 laid on the outer periphery of the steel column 2 is fixed at the end, so as to prevent the waterproof layer 7 from sliding down from the vertical surface of the steel column 2. Embodiment Two
[0029] As Figure 3-Figure 4 shown in the figure, on the basis of Embodiment One, the steel plate 3 includes a first section 301 and a second section 302 that can surround the outer periphery of the steel column 2. The first section 301 and the second section 302 are in a U shape or a C shape. After the two ends of the first section 301 and the second section 302 are respectively butted, a closed-loop structure surrounding the outer periphery of the steel column 2 can be formed. The steel plate 3 adopts a split structure, which is convenient for on-site construction.
[0030] In this technical solution, the steel plate 3 and the steel column 2 are fixed by welding and are seamlessly connected by welding. And after the steel plate 3 and the steel column 2 are welded together, an anti-rust coating is sprayed on the surfaces of the steel plate 3 and the steel column 2.
[0031] Furthermore, a vertical plate is provided on the steel plate 3 in the vertical direction, and the height of the vertical plate is lower than the height of the mortar leveling layer 4 to further increase the connection strength between the waterproof and thermal insulation composite layer and the steel plate 3.
[0032] Working principle: First, a circle of steel plate 3 that can fit on the concrete roof panel 1 is seamlessly welded on the outer periphery of the steel column 2. Then, after laying a waterproof and thermal insulation mixed layer on the concrete roof panel 1, the waterproof and thermal insulation mixed layer can also increase the attachment area with the steel column 2 through the steel plate 3, thereby increasing the attachment strength. Moreover, when the waterproof and thermal insulation mixed layer is laid on the steel plate 3 in the horizontal direction, its contact surface with the steel plate 3 is less affected by the ambient temperature and is not prone to cracks due to thermal expansion and contraction, causing the gap between the steel column 2 and the concrete roof panel 1 to be blocked laterally by the steel plate 3. Through the waterproof structure at the root of the steel column out of the house in this technical solution, the entire steel column 2 and the concrete roof panel 1 can be made into a more compact whole, thereby reducing or even blocking leakage gaps. While ensuring the airtightness of the waterproof node, it will not have an adverse effect on the appearance of the building, greatly improving the waterproof performance, and reducing the possibility of gaps caused by thermal expansion and contraction.
[0033] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.
Claims
1. A waterproof structure for the base of steel columns outside a house, comprising a concrete roof panel (1) and a steel column (2) passing through the concrete roof panel (1), characterized in that: The waterproof structure comprises a steel plate (3) arranged around the outer periphery of the steel column (2), and the steel plate (3) is attached to the concrete roof panel (1), and the steel plate (3) is seamlessly connected to the steel column (2); Wherein, a waterproof and heat-insulating mixed layer is provided on the concrete roof panel (1) and the steel plate (3), surrounding the outer periphery of the steel plate (3).
2. The waterproof structure at the base of the steel column of the building according to claim 1 is characterized by: The waterproof and thermal insulation mixed layer comprises a mortar leveling layer (4) laid on the concrete roof panel (1) and the steel plate (3), a vapor barrier layer (5) arranged on the mortar leveling layer (4), a thermal insulation layer (6) arranged on the vapor barrier layer (5), a waterproof layer (7) arranged on the thermal insulation layer (6), and a protective layer (8) arranged on the waterproof layer (7).
3. The waterproof structure at the base of the steel column of the building according to claim 2 is characterized by: The waterproof layer (7) extends to the outer periphery of the steel column (2).
4. The waterproof structure at the base of the steel column of the building according to claim 2 is characterized by: One end of the waterproof layer (7) placed on the outer periphery of the steel column (2) is penetrated by a rivet (9) fixed to the steel column (2).
5. The waterproof structure at the base of steel columns for exiting a building according to claim 1 is characterized in that: The steel plate (3) comprises a first section (301) and a second section (302) that can be arranged around the outer periphery of the steel column (2); the first section (301) and the second section (302) are in a U-shape or a C-shape.
6. The waterproof structure at the base of steel columns for exiting a building according to claim 1, characterized in that: The steel plate (3) and the steel column (2) are fixed by welding.
7. The waterproof structure at the base of steel columns for exiting a building according to claim 1 is characterized in that: A vertical plate is provided on the steel plate (3).
8. The waterproof structure at the base of steel columns for exiting a building according to claim 1 is characterized in that: The steel plate (3) and the steel column (2) are provided with an anti-rust coating.