A waterproof structural node for steel beams and large plate exterior walls
By adopting waterproof structural nodes in prefabricated steel structure buildings, and using technical means such as autoclaved aerated concrete large slab exterior wall and hook bolts, the waterproofing problem of steel beams and large slab exterior walls is solved, achieving efficient and convenient waterproofing effects and standardized construction.
Patent Information
- Application Number
- CN202421458847.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-25
AI Technical Summary
In prefabricated steel structure buildings, the waterproofing method of steel beams and large plate exterior walls has problems such as difficult installation, high requirements for pendants, and indoor protruding beams, which affect the aesthetics and practicality.
A waterproof structural node is adopted to form a complete waterproof structure by pouring the walls and floor slabs under concrete and embedded in the exterior wall of the large aerated concrete slab in between, and forming a complete waterproof structure. The hook head bolts and angle steel are used to fix the steel beams to ensure waterproof performance.
It realizes effective waterproofing between steel beams and large plate exterior walls, avoids the problem of protruding beams, improves the convenience and standardization of construction, extends the water penetration route, and further improves the waterproof performance.
Smart Images
Figure CN222730777U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of construction engineering, in particular to a waterproof structural node for a steel beam and a large plate outer wall. Background Art
[0002] In architectural design, the waterproofing of exterior walls is a very important link. The rationality of the waterproofing construction of exterior walls and the quality of construction directly affect the quality of the product and the user experience during use. Due to the high maintenance cost of the exterior wall, and the characteristics of difficult repair and high cost, it is necessary to take waterproofing construction measures in the design stage. In the design of the exterior wall of the prefabricated steel structure, in order to improve the waterproof performance of the exterior wall, the large-plate exterior wall is often fixed by hanging it. The large-plate exterior wall hanging causes the steel beam to be exposed indoors, forming a convex beam state, and the user's physical examination is poor. In particular, additional outsourcing is required during interior decoration, which affects the appearance. In addition, because the steel beam is generally arranged along the length of the wall, it is very difficult to bury the indoor pipeline. Therefore, the waterproofing of steel beams and large-plate exterior walls is one of the current pain points and difficulties, and the problems of waterproofing, leakage prevention, and practical comfort are prominent. Utility Model Content
[0003] In view of the problems in the background technology, the exterior walls of prefabricated steel structure buildings usually use external hanging methods to ensure the integrity of the exterior walls, thereby improving the waterproof performance of the exterior walls. However, the external hanging method also has the disadvantages of being difficult to install, requiring high quality of hanging parts, and having indoor convex beams, which are particularly disadvantageous in residential buildings with high indoor space requirements. The utility model provides a waterproof structural node for steel beams and large-plate exterior walls. The node method of the utility model forms a complete waterproof structure at the connection between the autoclaved aerated concrete exterior wall and the steel beam, solves the problem of leakage between the steel beam and the large-plate exterior wall, and improves the waterproof performance.
[0004] The technical solution adopted by the utility model is:
[0005] It includes a concrete lower hanging wall formed by pouring, a concrete floor slab is poured on the upper part of the concrete lower hanging wall, the concrete floor slab is extended to the indoor side, the concrete floor slab is pre-embedded with floor slab embedded parts, an embedded autoclaved aerated concrete large slab exterior wall is arranged on the upper part of the concrete floor slab and under the concrete lower hanging wall, the lower part of the autoclaved aerated concrete large slab exterior wall located under the concrete lower hanging wall protrudes outward along the thickness direction of the autoclaved aerated concrete large slab exterior wall to form a flange structure, and the flange structure, the concrete lower hanging wall, the concrete floor slab and the outdoor surface of the autoclaved aerated concrete large slab exterior wall located above the concrete floor slab are flush;
[0006] An H-shaped steel beam is embedded in the concrete lower hanging wall, and the area surrounded by the web and flange of the H-shaped steel beam close to the indoor side is filled with filling blocks until it is flush with the indoor surface of the autoclaved aerated concrete large panel exterior wall.
[0007] A hook bolt is embedded in the top of the autoclaved aerated concrete large panel outer wall below the concrete lower hanging wall. The hook bolt extends outward from the notch groove outside the autoclaved aerated concrete large panel outer wall and is fixed and welded through the outer side of the lower flange of the angle steel and the H-shaped steel beam.
[0008] The outdoor side surfaces of the concrete lower hanging wall and the autoclaved aerated concrete large slab exterior wall are covered with a mortar surface layer, a hot-dip galvanized welded mesh is arranged inside the mortar surface layer, and the outer surface of the mortar surface layer is covered with a JS waterproof coating.
[0009] A gap is provided between the lower wing plate of the H-shaped steel beam and the autoclaved aerated concrete large slab outer wall located below the concrete lower hanging wall, and the gap is filled with caulking mortar.
[0010] A notch is provided on the outer side of the autoclaved aerated concrete large slab outer wall below the concrete lower hanging wall to allow a row of steel bars inside the slab to leak out.
[0011] The beneficial effects of the utility model are:
[0012] 1. Complete structure. This node method forms a complete waterproof structure at the connection between the autoclaved aerated concrete exterior wall and the steel beam, solving the problems of waterproofing and anti-leakage within the structure, and the structure is complete.
[0013] 2. The construction is convenient and fast, with low requirements for fasteners. It avoids the problem of convex beams, does not affect the indoor space, and is convenient for indoor pipeline layout.
[0014] 3. High degree of standardization. Since steel beams, hook bolts, angle steels, etc. are all standardized parts, the methods and materials of the nodes are highly standardized, batch cutting and batch flow construction can be carried out, which makes it easy to ensure quality and the workers are skilled in operation.
[0015] 4. It can effectively form multiple anti-leakage lines, change the water penetration path, extend the water penetration route, and further improve the waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a node structural diagram of the completed waterproof construction of steel beams and autoclaved aerated concrete slab exterior walls.
[0017] Figure 2 This is a perspective view of the steel bars retained in the autoclaved aerated concrete slab after the end of the exterior wall is cut.
[0018] In the figure: 1. H-shaped steel beam; 2. Autoclaved aerated concrete large panel exterior wall; 3. Steel bars in the panel; 4. Concrete floor slab; 5. Hook bolts; 6. Grouting mortar; 7. Steel nails; 8. JS waterproof coating; 9. Hot-dip galvanized welded mesh; 10. Floor slab embedded parts; 11. Filling blocks; 12. Angle steel. DETAILED DESCRIPTION
[0019] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0020] like Figure 1 and Figure 2 As shown, the waterproof structural node for the steel beam and the large-plate exterior wall includes a concrete lower hanging wall formed by pouring, and a concrete floor slab 4 is cast on the upper part of the concrete lower hanging wall. The concrete floor slab 4 is extended to the indoor side, and a floor slab embedded part 10 is embedded in the concrete floor slab 4. Embedded autoclaved aerated concrete large-plate exterior walls 2 are arranged on the upper part of the concrete floor slab 4 and under the concrete lower hanging wall. The lower part of the autoclaved aerated concrete large-plate exterior wall 2 located under the concrete lower hanging wall protrudes outward along the thickness direction of the autoclaved aerated concrete large-plate exterior wall 2 to form a flange structure. The flange structure, the concrete lower hanging wall, the concrete floor slab 4 and the outdoor surface of the autoclaved aerated concrete large-plate exterior wall 2 located above the concrete floor slab 4 are flush, and the structure is used to increase the water seepage path of the wall and thus improve the waterproof performance. Steel nails 7 are arranged at intervals on the outdoor surface.
[0021] An H-shaped steel beam 1 is embedded in the concrete lower hanging wall, and the area surrounded by the web and flange of the H-shaped steel beam 1 close to the indoor side is filled with filling blocks 11 until it is flush with the indoor surface of the autoclaved aerated concrete large-plate exterior wall 2, and the leveling and plastering process is completed subsequently; a gap is opened between the lower wing plate of the H-shaped steel beam 1 and the autoclaved aerated concrete large-plate exterior wall 2 located below the concrete lower hanging wall, and the gap is filled with caulking mortar 6.
[0022] A hook bolt 5 is embedded in the top of the autoclaved aerated concrete large panel exterior wall 2 located below the concrete lower hanging wall. The hook bolt 5 extends outward from the notch groove on the outside of the autoclaved aerated concrete large panel exterior wall 2 and is fixedly welded through the angle steel 12 and the outer side of the lower flange of the H-shaped steel beam 1. The depth of the notch groove is not less than 100 mm, the thickness of the groove is 50 to 100 mm, and the thickness of the top of the autoclaved aerated concrete wall after the notch is 150 to 200 mm.
[0023] The outdoor side of the concrete hanging wall and the autoclaved aerated concrete large panel exterior wall 2 is covered with a mortar surface layer, a hot-dip galvanized welded mesh 9 is arranged inside the mortar surface layer, and the outer surface of the mortar surface layer is covered with a JS waterproof coating 8 to improve the waterproof and crack resistance of the interface.
[0024] A notch is provided on the outside of the autoclaved aerated concrete large slab outer wall 2 located below the concrete lower hanging wall to expose a row of internal slab steel bars 3 to increase the cohesiveness of the concrete.
[0025] The construction process of this utility model is as follows:
[0026] The H-shaped steel beam 1 is welded with an angle steel 12 at the bottom of the lower flange near the outdoor side, a notch groove is opened on the outside of the autoclaved aerated concrete slab exterior wall 2 located below the concrete lower hanging wall to expose a row of internal slab steel bars 3, the autoclaved aerated concrete slab exterior wall 2 located below the concrete lower hanging wall is welded to the angle steel 12 at the top through a hook bolt 5, and a 20-30 mm gap is reserved between the autoclaved aerated concrete slab exterior wall 2 located below the concrete lower hanging wall and the bottom of the H-shaped steel beam 1 to fill the gap with grouting mortar 6. After tightening the hook bolt 5, the concrete floor 4 is cast above the H-shaped steel beam, the autoclaved aerated concrete slab exterior wall 2 is cast above the concrete floor 4 and the web is on the outside and bottom as a whole, and then the filling blocks 11 are filled on the indoor side of the H-shaped steel beam 2, and after filling, it is flush with the indoor surface of the autoclaved aerated concrete slab exterior wall 2, and then the leveling and plastering process is completed;
[0027] On the outdoor side, the outdoor side of the concrete lower hanging wall and the autoclaved aerated concrete large panel exterior wall 2 is covered with a mortar surface layer, a hot-dip galvanized welded mesh 9 is arranged inside the mortar surface layer, and the outer surface of the mortar surface layer is covered with JS waterproof coating 8 to improve the waterproof and crack resistance of the interface.
[0028] The concrete lower hanging wall and the concrete floor slab 4 are cast on site together as a whole, and there is no gap between the two, and there is no possibility of leakage; the lower part of the autoclaved aerated concrete large plate outer wall 2 located below the concrete lower hanging wall protrudes outward along the thickness direction of the autoclaved aerated concrete large plate outer wall 2 to form a flange structure, such as Figure 2 As shown in the figure, after being cast in situ, it forms an integral and "ladder" waterproof surface with the concrete lower hanging wall, which increases the water seepage path and improves the waterproof performance of the exterior wall;
[0029] The construction method of autoclaved aerated concrete exterior wall waterproofing is consistent with traditional construction methods. It is included in the nodes here for the completeness of the nodes. There is no technical innovation and it will not be elaborated.
[0030] It can be seen that the utility model has a complete structure, convenient and fast construction, a high degree of standardization, and can form multiple lines of defense for effective waterproofing and leakage prevention of steel beams 1 and exterior walls. It can be widely used in the node structure of steel beams and large-plate exterior walls of prefabricated steel structure buildings.
[0031] The contents described in the implementation cases of this specification are merely an enumeration of the implementation forms of the utility model concept. The protection scope of the utility model should not be deemed to be limited to the specific forms described in the embodiments. The protection scope of the utility model also extends to the equivalent technical means that can be thought of by technical personnel in this field based on the concept of the utility model.
Claims
1. A waterproof structural node for steel beams and large plate exterior walls, characterized in that: The invention comprises a concrete lower hanging wall formed by pouring, a concrete floor slab (4) is poured on the upper part of the concrete lower hanging wall, the concrete floor slab (4) is extended to the indoor side, a floor slab embedded part (10) is embedded in the concrete floor slab (4), an embedded autoclaved aerated concrete large plate external wall (2) is arranged on the upper part of the concrete floor slab (4) and the lower part of the autoclaved aerated concrete large plate external wall (2) located below the concrete lower hanging wall, the lower part of the autoclaved aerated concrete large plate external wall (2) protrudes outward along the thickness direction of the autoclaved aerated concrete large plate external wall (2) to form a flange structure, and the flange structure, the concrete lower hanging wall, the concrete floor slab (4) and the outdoor surface of the autoclaved aerated concrete large plate external wall (2) located above the concrete floor slab (4) are flush; An H-shaped steel beam (1) is embedded in the concrete lower hanging wall, and a filling block (11) is filled in the area surrounded by the web and flange of the H-shaped steel beam (1) close to the indoor side until it is flush with the indoor surface of the autoclaved aerated concrete large panel exterior wall (2).
2. The waterproof structural node for steel beams and large-plate exterior walls according to claim 1 is characterized in that: A hook bolt (5) is embedded in the top of the autoclaved aerated concrete large panel exterior wall (2) located below the concrete lower hanging wall. The hook bolt (5) extends outward from the notch groove on the outside of the autoclaved aerated concrete large panel exterior wall (2) and is fixedly welded to the outside of the lower flange of the angle steel (12) and the H-shaped steel beam (1).
3. The waterproof structural node for steel beams and large-plate exterior walls according to claim 1 is characterized in that: The outdoor side surfaces of the concrete lower hanging wall and the autoclaved aerated concrete large slab exterior wall (2) are covered with a mortar surface layer, a hot dip galvanized welded mesh (9) is arranged inside the mortar surface layer, and the outer surface of the mortar surface layer is covered with a JS waterproof coating (8).
4. The waterproof structural node for steel beams and large plate exterior walls according to claim 1 is characterized in that: A gap is provided between the lower wing plate of the H-shaped steel beam (1) and the autoclaved aerated concrete large slab exterior wall (2) located below the concrete lower hanging wall, and the gap is filled with caulking mortar (6).
5. The waterproof structural node for steel beams and large-plate exterior walls according to claim 1 is characterized in that: The autoclaved aerated concrete large slab exterior wall (2) located below the concrete lower hanging wall is provided with a notch groove on the outside to expose a row of slab inner steel bars (3) inside.