Steel structure fixing structure on concrete waterproof roll
By connecting the steel plate on the waterproof membrane layer to the concrete structural slab, the problems of material waste and long construction period of the steel structure columns of the connecting corridor above the basement roof slab are solved, achieving stable support, waterproofing and aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-03
AI Technical Summary
In building construction projects, when fixing the steel structure columns of the connecting corridor above the basement roof slab, the existing technology requires the construction of an independent foundation, which leads to problems such as material waste, multiple construction procedures, long cycle, poor stress and poor aesthetics.
A steel structure is used to fix the concrete waterproof membrane. By setting steel plates on the waterproof membrane layer and connecting them to the concrete structure slab with anchor bolts, a waterproof closed-loop layer is formed. The bottom of the steel column is welded to the steel plate, and combined with the protective layer, it avoids damage to the waterproof membrane, simplifies the construction process and shortens the cycle.
It achieves stable support for steel columns, reduces material waste, shortens the construction period, improves stress resistance, and maintains waterproofness and aesthetics.
Smart Images
Figure CN224078406U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure fixing technology on waterproof membranes, and in particular to a steel structure fixing structure on concrete waterproof membranes. Background Technology
[0002] Currently, in building construction projects, there are buildings with underground garages. The roof of the basement is often planned as a landscaping project, so the top of the basement roof needs to be backfilled to cover it. This means that the basement roof needs to be waterproofed. That is, the basement roof consists of a lower protective layer, a reinforced concrete layer, a waterproof membrane layer, and an upper protective layer from bottom to top.
[0003] In landscaping projects, when a steel structure corridor is constructed above the basement roof slab, independent foundations are typically required for the steel structure columns of the corridor to avoid damaging the waterproof membrane layer. These independent foundations are placed above the upper protective layer to secure the steel columns. One drawback of this method is the excessive waste of materials, such as concrete and reinforcing steel, due to the separate foundations. Another drawback is the numerous construction steps, requiring the concrete foundation to reach sufficient strength before the steel columns can be fixed, resulting in a long construction period. A third drawback is the small horizontal area of the independent foundations, leading to poor load-bearing capacity and susceptibility to weather conditions, posing safety hazards. A fourth drawback is the elevation limitation; in areas with thin backfill, the independent foundations cannot be concealed, affecting aesthetics and potentially interfering with ground space. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, which requires the construction of independent foundations to fix the steel structure columns of the connecting corridor above the basement roof slab in order to avoid damaging the waterproof membrane layer. This has resulted in many construction procedures, long cycle, poor stress resistance, and interference with the ground. The present invention provides a steel structure fixing structure on the concrete waterproof membrane.
[0005] In a first aspect, this utility model provides a steel structure fixing structure for concrete waterproof membrane, comprising:
[0006] The top slab is a reinforced concrete structure.
[0007] A waterproof membrane layer is laid on top of the concrete structure slab, and the waterproof membrane layer and the concrete structure slab are respectively provided with a plurality of vertical first anchoring holes;
[0008] A steel plate, wherein the steel plate is provided with a second anchoring hole corresponding to the first anchoring hole, the steel plate is disposed above the waterproof membrane layer, and the bottom surface of the steel column is welded to the top of the steel plate;
[0009] An anchor bolt, the lower end of which passes through the corresponding first anchor hole and second anchor hole, the lower end of which is anchored in the first anchor hole of the concrete structure slab, the upper end of which is pressed against the steel plate by a nut, and a waterproof coating layer is provided between the anchor bolt and the first anchor hole of the waterproof membrane layer.
[0010] A protective layer covering the waterproof membrane layer, the steel plate, the upper end of the anchor bolt, and the nut.
[0011] The steel structure fixing structure on the concrete waterproof membrane described in this solution involves placing a steel plate above the waterproof membrane layer. Anchor bolts pass through the first vertical anchoring holes corresponding to the waterproof membrane layer and the concrete structural slab. A waterproof coating layer is placed between the anchor bolts and the first anchoring holes of the waterproof membrane layer, forming a closed-loop waterproof layer that prevents leakage. Steel columns are welded to the top of the steel plate, and the steel plate is fixed to the concrete structural slab of the roof using anchor bolts and nuts. This allows the basement roof slab to provide support for the columns, resulting in a large bearing area and better load-bearing effect. Furthermore, a protective layer covers the waterproof membrane layer, steel plate, upper ends of the anchor bolts, and nuts, preventing interference with the ground. Since the construction of the steel plate, anchor bolts, and nuts is carried out along with the construction of the basement roof slab, no separate independent foundation is required, resulting in fewer construction steps and a shorter construction period.
[0012] Preferably, the second anchoring hole is a strip-shaped hole to avoid mismatch between the first anchoring hole and the second anchoring hole, which could lead to installation failure or inconvenience.
[0013] Preferably, all the second anchor holes in the steel plate have the same length direction, which can better match the first anchor holes and the second anchor holes, and make the structural strength of the steel plate more uniform.
[0014] Preferably, the anchor bolt is a chemical anchor bolt, which, compared to ordinary mechanical anchor bolts, can repair the first anchor hole of the concrete structural slab, has high bonding strength, more uniform stress distribution, can improve load-bearing capacity, has better seismic resistance, better corrosion resistance and durability, and is conducive to ensuring the support stability of the steel column.
[0015] Preferably, the steel plate is square, and the four corners of the steel plate are provided with the second anchoring holes, which can be more conducive to stable anchoring by anchor bolts.
[0016] Preferably, the steel plate has a thickness of 3cm-5cm, a side length of 30cm-40cm, a protective layer thickness of less than or equal to 12cm, and the length of the lower end of the anchor bolt anchored in the first anchor hole of the concrete structure slab is greater than or equal to 10cm and less than the thickness of the concrete structure slab.
[0017] Ensuring the stability of the anchor bolts guarantees the stability of the column. Furthermore, compared to using a separate foundation, it saves materials and reduces costs.
[0018] Preferably, a washer is provided between the steel plate and the nut to prevent stress concentration from causing damage to the steel plate, thus making the steel column more stable.
[0019] Preferably, a reinforcing structure is welded between the bottom of the steel column and the steel plate, and the protective layer covers the reinforcing structure.
[0020] The connection between the steel column and the steel plate is strengthened by reinforcing the structure, thereby improving the stability of the steel column. A protective layer covers the reinforcing structure to prevent interference with the ground and to enhance its aesthetics.
[0021] Preferably, the steel column is a square tube, and the reinforcing structure is a stiffening plate welded to the four corners of the square tube, so that the steel column can be supported from the four corners, resulting in better support capacity.
[0022] Preferably, the stiffening plate is a right-angled triangle structure, with the two right-angled sides of the right-angled triangle structure welded to the edge of the square tube and the upper surface of the steel plate, respectively, resulting in better welding effect and better support capacity.
[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0024] This utility model provides a steel structure fixing structure for a concrete waterproof membrane. A steel plate is placed above the waterproof membrane layer, and anchor bolts pass through vertical first anchoring holes corresponding to the waterproof membrane layer and the concrete structural slab. A waterproof coating layer is placed between the anchor bolts and the first anchoring holes of the waterproof membrane layer, forming a closed-loop waterproof layer that prevents leakage. A steel column is welded to the top of the steel plate, and the steel plate is fixed to the concrete structural slab of the roof using anchor bolts and nuts. This allows the roof slab to provide support for the column, resulting in a large bearing area and better load-bearing effect. A protective layer covers the waterproof membrane layer, steel plate, upper ends of the anchor bolts, and nuts, preventing interference with the ground. Since the steel plate, anchor bolts, and nuts are installed along with the basement roof slab, no separate independent foundation is required, resulting in fewer construction steps and a shorter construction period. Attached Figure Description
[0025] Figure 1 A schematic diagram of a steel structure fixing a concrete waterproof membrane;
[0026] Figure 2 This is a schematic diagram of a concrete structural slab.
[0027] Figure 3 A schematic diagram of laying a waterproof membrane layer on a concrete structural slab;
[0028] Figure 4 A schematic diagram showing the first anchoring hole to be made in the waterproof membrane layer and the concrete structural slab;
[0029] Figure 5 A schematic diagram showing the anchor bolt passing through the first anchoring hole and anchoring it within the concrete structural slab;
[0030] Figure 6 A schematic diagram showing the formation of a waterproof coating layer between the anchor bolt and the first anchoring hole of the waterproof membrane layer;
[0031] Figure 7 This is a schematic diagram showing the placement of a steel plate on top of a waterproof membrane layer.
[0032] Figure 8 This is a schematic diagram showing how a steel plate is secured with nuts.
[0033] Figure 9 A schematic diagram of welding a steel column to a steel plate and then welding a stiffening plate;
[0034] Figure 10 A schematic diagram showing the welding of a steel column to a steel plate and the subsequent welding of stiffening plates;
[0035] Figure 11 A schematic diagram of the protective layer covering the structure.
[0036] Markings in the diagram: 1. Concrete structural slab; 2. Waterproof membrane layer; 3. First anchor hole; 4. Anchor bolt; 5. Waterproof coating layer; 6. Steel plate; 61. Second anchor hole; 7. Nut; 8. Stiffening plate; 9. Steel column; 10. Protective layer; Detailed Implementation
[0037] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0038] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.
[0039] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.
[0040] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.
[0041] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.
[0042] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.
[0043] Example 1
[0044] like Figure 1 As shown, a steel structure fixing structure on a concrete waterproof membrane includes: a concrete structural slab 1 on the top plate, a waterproof membrane layer 2, a steel plate 6, anchor bolts 4, and a protective layer 10.
[0045] The concrete structure slab 1 is a reinforced concrete structure, which is part of the basement roof slab;
[0046] The waterproof membrane layer 2 is laid on top of the concrete structure slab 1. The waterproof membrane layer 2 is part of the basement roof slab. The waterproof membrane layer 2 and the concrete structure slab 1 are provided with a number of vertical first anchor holes 3. The first anchor holes 3 are round holes.
[0047] The steel plate 6 is provided with a second anchoring hole 61 corresponding to the first anchoring hole 3. The second anchoring hole can be a round hole or a strip hole, etc.
[0048] Preferred implementation methods, such as Figure 10 As shown, the second anchoring hole 61 is a strip-shaped hole to avoid mismatch between the first anchoring hole 3 and the second anchoring hole 61, which would prevent installation from being impossible or inconvenient.
[0049] All the second anchor holes 61 of the steel plate 6 have the same length direction, which can better match the first anchor hole 3 and the second anchor hole 61, and make the structural strength of the steel plate 6 more uniform.
[0050] The steel plate 6 is disposed above the waterproof membrane layer 2. The steel plate 6 can be of various shapes. The bottom surface of the steel column 9 is welded to the top of the steel plate 6. The steel column can be of various types of steel columns, as long as it can ensure vertical support capacity.
[0051] The lower end of the anchor bolt 4 passes through the corresponding first anchoring hole 3 and second anchoring hole 61. The lower end of the anchor bolt 4 is anchored in the first anchoring hole 3 of the concrete structure slab 1. It can be anchored into the first anchoring hole 3 of the concrete structure slab 1 like an expansion bolt. The upper end of the anchor bolt 4 is pressed against the steel plate 6 by the nut 7 to fix the steel plate 6. There is a waterproof coating layer 5 between the anchor bolt 4 and the first anchoring hole 3 of the waterproof membrane layer 2, so that the anchor bolt 4, the waterproof membrane layer 2 and the waterproof coating layer 5 together form a waterproof closed loop layer, thus basically preventing water leakage.
[0052] In optional embodiments, the anchor bolt 4 can be various anchor bolt structures with connection strength, such as mechanical anchor bolts or chemical anchor bolts. As a preferred embodiment, the anchor bolt 4 is a chemical anchor bolt. Compared to ordinary mechanical anchor bolts, it can repair the first anchoring hole 3 of the concrete structural slab 1, further improving waterproofing capabilities. It also has high bonding strength, more uniform stress distribution, improved load-bearing capacity, better seismic resistance, better corrosion resistance and durability, which helps ensure the support stability of the steel column.
[0053] The steel plate 6 is fixed to the concrete structural slab 1 of the top slab by anchor bolts 4 and nuts 7, thereby enabling the basement top slab to provide support for the columns. It has a large bearing area and better bearing effect.
[0054] In an optional embodiment, a washer is provided between the steel plate 6 and the nut 7 to prevent stress concentration from causing damage to the steel plate, thus making the steel column more stable.
[0055] In optional implementations, such as Figure 9 As shown, the steel plate 6 is square, and the four corners of the steel plate 6 are provided with the second anchoring holes 61, which can be more conducive to stable anchoring by anchor bolts.
[0056] In optional implementations, such as Figure 9 As shown, a reinforcing structure is welded between the bottom of the steel column 9 and the steel plate 6. The reinforcing structure strengthens the connection between the steel column 9 and the steel plate 6, thereby improving the stability of the steel column.
[0057] In optional implementations, such as Figure 9 As shown, the steel column 9 is a square tube, and the reinforcing structure consists of stiffening plates 8 welded to the four corners of the square tube, enabling support for the steel column 9 from the four corners and improving its support capacity. Furthermore, the stiffening plate 8 is a right-angled triangle structure, with its two right-angled sides welded to the edges of the square tube and the upper surface of the steel plate 6, respectively, resulting in better welding and improved support capacity.
[0058] In optional implementations, such as Figure 10 As shown, the corners of the steel column 9, the stiffening plate, the anchor bolt, and the steel plate are all on a straight line, which can increase the force on the four corners of the column and thus improve the stability of the column.
[0059] The protective layer is a plain concrete layer, which is part of the basement roof slab. The protective layer 10 covers the waterproof membrane layer 2, steel plate 6, upper end of anchor bolt 4, nut 7 and reinforcing structure. The protective layer 10 protects the waterproof membrane layer 2, steel plate 6, upper end of anchor bolt 4, nut 7 and reinforcing structure, while hiding these structures, so that the top of the protective layer 10 is flat, does not interfere with the ground, and is more aesthetically pleasing.
[0060] In an optional embodiment, the steel plate 6 has a thickness of 3cm-5cm and a side length of 30cm-40cm. The protective layer 10 has a thickness of less than or equal to 12cm. The lower end of the anchor bolt 4 is anchored in the first anchoring hole 3 of the concrete structural slab 1 for a length greater than or equal to 10cm and less than the thickness of the concrete structural slab 1. This ensures the stability of the anchor bolt anchoring, thereby ensuring the stability of the column. Furthermore, compared to setting up a separate independent foundation, this method saves materials and reduces costs.
[0061] The construction steps for the steel structure fixing structure on the concrete waterproof membrane described in this embodiment are as follows:
[0062] Step 1: After the concrete structural slab 1 has reached its strength, clean its surface thoroughly, such as... Figure 2 As shown;
[0063] Step 2: Apply waterproof membrane layer 2 on top of the concrete structural slab 1, connecting it into a single unit, such as... Figure 3 As shown;
[0064] Step 3: Based on the preset position of steel plate 6, determine the drilling location and complete the drilling to form the first anchoring hole 3. Drilling requires damaging the waterproof membrane layer 2 and the concrete structural slab 1, but the drilling depth does not exceed the thickness of the concrete structural slab 1, i.e., it will not penetrate the bottom of the concrete structural slab 1, thus preventing further water seepage or damage and improving its waterproofness. Figure 4 As shown;
[0065] Step 4: Perform dust removal and other treatments at the first anchoring hole 3, then fix the lower end of anchor bolt 4. Anchor bolt 4 is a chemical anchor bolt, ensuring that the chemical anchor bolt and the drilled hole are fixed together as one unit. Figure 5 As shown;
[0066] Step 5: Apply waterproof coating around the chemical anchor, forming a waterproof coating layer 5 between the chemical anchor and the first anchoring hole 3 of the waterproof membrane layer 2. This connects the chemical anchor, waterproof membrane layer 2, and waterproof coating layer 5 to form a closed-loop waterproof layer, effectively reconnecting the damaged waterproof layer after structural connection into a unified whole. Figure 6 As shown;
[0067] Step Six: Align the second anchoring hole 61 of the steel plate 6 with the chemical anchor, and place the steel plate 6 on the waterproof membrane layer 2, as follows. Figure 7 As shown, the chemical anchor is aligned with the second anchoring hole 61 and passed through the steel plate 6, serving as a connector for subsequent connection of the steel plate 6;
[0068] Step 7: Secure nut 7 to the chemical anchor and firmly fix steel plate 6, as follows: Figure 8 As shown, the steel plate 6 can be fixed by connecting the nut 7 to the chemical anchor.
[0069] Step 8: Then, fully weld the stiffening plate 8, steel column 9, and steel plate 6 together to secure them firmly, making them a unified whole. Figure 9 and 10 As shown;
[0070] Step 9: Pour the protective layer to cover the stiffening plate 8 and steel plate 6, etc. Construction is complete. Figure 11 and Figure 1 As shown.
[0071] This method allows the construction of steel plate 6, anchor bolt 4, and nut 7 to proceed concurrently with the construction of the basement roof slab, thereby reducing the need for independent foundation construction and shortening the construction period and costs.
[0072] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A steel structure fixing structure for concrete waterproof membrane, characterized in that, include: The top slab is a concrete structural slab (1), which is a reinforced concrete structure; Waterproof membrane layer (2), the waterproof membrane layer (2) is laid on top of the concrete structure slab (1), and the waterproof membrane layer (2) and the concrete structure slab (1) are provided with a plurality of vertical first anchor holes (3); A steel plate (6) is provided with a second anchor hole (61) corresponding to the first anchor hole (3). The steel plate (6) is located above the waterproof membrane layer (2), and the bottom surface of the steel column (9) is welded to the top of the steel plate (6). Anchor bolt (4), the lower end of the anchor bolt (4) passes through the corresponding first anchor hole (3) and second anchor hole (61), the lower end of the anchor bolt (4) is anchored in the first anchor hole (3) of the concrete structure slab (1), the upper end of the anchor bolt (4) is pressed against the steel plate (6) by a nut (7), and there is a waterproof coating layer (5) between the anchor bolt (4) and the first anchor hole (3) of the waterproof membrane layer (2); A protective layer (10) covers the waterproof membrane layer (2), the steel plate (6), the upper end of the anchor bolt (4), and the nut (7).
2. The steel structure fixing structure on a concrete waterproof membrane according to claim 1, characterized in that, The second anchoring hole (61) is a strip-shaped hole.
3. The steel structure fixing structure on a concrete waterproof membrane according to claim 2, characterized in that, All the second anchor holes (61) of the steel plate (6) have the same length direction.
4. The steel structure fixing structure on a concrete waterproof membrane according to claim 1, characterized in that, The anchor (4) is a chemical anchor.
5. The steel structure fixing structure on a concrete waterproof membrane according to claim 1, characterized in that, The steel plate (6) is square, and the four corners of the steel plate (6) are provided with the second anchoring holes (61).
6. The steel structure fixing structure on a concrete waterproof membrane according to claim 5, characterized in that, The steel plate (6) has a thickness of 3cm-5cm and a side length of 30cm-40cm. The protective layer (10) has a thickness of less than or equal to 12cm. The lower end of the anchor bolt (4) is anchored in the first anchor hole (3) of the concrete structure slab (1) for a length greater than or equal to 10cm and less than the thickness of the concrete structure slab (1).
7. The steel structure fixing structure on a concrete waterproof membrane according to claim 1, characterized in that, A gasket is provided between the steel plate (6) and the nut (7).
8. A steel structure fixing structure for concrete waterproof membrane according to any one of claims 1-7, characterized in that, A reinforcing structure is welded between the bottom of the steel column (9) and the steel plate (6), and the protective layer (10) covers the reinforcing structure.
9. The steel structure fixing structure on a concrete waterproof membrane according to claim 8, characterized in that, The steel column (9) is a square tube, and the reinforcing structure is a stiffening plate (8) welded to the four corners of the square tube.
10. The steel structure fixing structure on a concrete waterproof membrane according to claim 9, characterized in that, The stiffening plate (8) is a right-angled triangle structure, and the two right-angled sides of the right-angled triangle structure are respectively welded to the edge of the square tube and the upper surface of the steel plate (6).