Main structure for quickly installing post-cast strip steel plate net and water stop steel plate and construction method

Abstract

The invention provides a main structure for quickly installing a post-cast strip steel plate net and a water stop steel plate and a construction method, and belongs to the technical field of building construction. The construction method comprises the following steps of rubber water stop strip fixing, lower-layer two-way steel bar binding, main structure installation and temporary fixing, upper-layer two-way steel bar construction, formwork arrangement and concrete pouring. According to the construction method, through meshing of the F-shaped clamps and the full-length steel bars on the upper layer and the lower layer of the foundation, the problem that in a traditional method, short steel bars and main structure steel bars are welded to fix the water stop steel plate is solved, through the detachable temporary supports, fixing of the main structure is achieved, steel bar recycling is achieved, and waste is avoided. A large number of steel bars are saved by saving the construction technology of a steel plate net fixing framework. And through arrangement of the rubber water stop strips, the problems that due to the fact that a steel plate net cannot intercept a gap between the outer side of a bottom-layer steel bar and a waterproof protection layer, slurry leakage occurs at the position during concrete pouring, and the concrete durability of a pouring section is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a main structure and a construction method for quickly installing a post-casting strip steel plate mesh and a water-stop steel plate. Background Art

[0002] Currently, the installation of waterstop steel plates in foundation post-cast strips is typically done by welding short steel bars to the base plate reinforcement, then welding the waterstop steel plates to the short steel bars, with support provided by diagonal steel bars welded to the base plate. Expanded mesh installation begins by welding a steel skeleton, then using lashing wire to bind the expanded mesh and skeleton together. Once the waterstop steel plates are installed, the skeleton is hoisted to the work surface and welded to the short steel bars securing the waterstop steel plates. Furthermore, to enhance the overall stability of the waterstop steel plates after installation, short vertical steel bars are typically used to weld the upper steel bars to the waterstop steel plates after the upper foundation steel bars have been installed.

[0003] However, this method not only consumes a large amount of steel but also requires extensive welding. Welding on the main structural steel bars can damage the steel's performance. Furthermore, because the expanded metal mesh cannot effectively seal the gap between the outer surface of the underlying steel bars and the waterproofing layer, concrete leaks occur during pouring, affecting the durability of the concrete in the poured section. Summary of the Invention

[0004] In view of this, in order to solve the technical problems of the traditional post-cast strip water-stop steel plate installation construction method consuming a large amount of steel bars and carrying out a large amount of welding operations, on the one hand, the present invention provides a main structure for the rapid installation of cast strip steel mesh and water-stop steel plates, which can effectively reduce the waste of steel bars, and adopts the bite fixing method of F-type clips and the upper and lower bidirectional steel bars to replace the traditional short steel bars and the main structure steel bars welding fixing method, thereby reducing the welding operations on the main structure steel bars and avoiding the impact of welding on the steel bar performance.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The main structure used for the rapid installation of post-cast steel mesh and water-stop steel plates includes:

[0007] The F-type clamp has an upper opening and a lower opening, which are used to clamp on the upper bidirectional steel bars and the lower bidirectional steel bars respectively;

[0008] Expanded steel mesh, arranged on the F-shaped card;

[0009] The water-stop steel plate is arranged on the F-shaped card and is located between the upper opening and the lower opening.

[0010] Preferably, the expanded metal is tied to the F-type card by means of binding wires.

[0011] Preferably, the main structure is prefabricated in advance in a processing plant.

[0012] On the other hand, in order to avoid the technical problems of the traditional post-cast strip water-stop steel plate installation construction method, which involves a large amount of waste of steel bars, the need to weld on the main structure steel bars, and the inability to avoid grout leakage that reduces the durability of concrete, the present invention also provides a construction method for quickly installing the post-cast strip steel mesh and the water-stop steel plate, comprising the following steps:

[0013] Step (1): Fixing the rubber water stop strip

[0014] After the waterproof protective layer is constructed, the rubber water stop strips are fixed on both sides of the waterproof protective layer of the post-cast belt, with the top elevation higher than the upper elevation of the steel bars under the bottom plate;

[0015] Step (2): Binding of lower layer two-way reinforcement

[0016] Bind the lower bidirectional steel bars on the rubber water stop strip so that the rubber water stop strip is tightly wrapped around the lower bidirectional steel bars to prevent the rubber water stop strip from shifting due to the pressure of unilateral concrete in the later stage.

[0017] Step (3): Installation and temporary fixation of the main structure

[0018] After the lower layer of two-way reinforcement is tied, the prefabricated main structure is hoisted to the work surface, and the lower opening of the F-type clamp is clamped on the lower layer of two-way reinforcement to fix the lower part of the main structure; one end of the temporary support device is spot welded along the length of the waterstop steel plate, and the other end of the temporary support device is supported on the waterproof protective layer without being welded to the lower layer of two-way reinforcement to temporarily fix the main structure;

[0019] Step (4): Upper bidirectional reinforcement construction and formwork setting

[0020] During the construction of the upper two-way reinforcement, fix the upper part of the main structure with the upper opening of the F-type clamp on the upper two-way reinforcement. Set a full-length wooden square on the outside of the F-type clamp as a template. After completion, remove the temporary support device.

[0021] Step (5): concrete pouring

[0022] Pour concrete on both sides of the post-cast joint.

[0023] Preferably, in step (1), the rubber water stop strips are fixed on both sides of the waterproof protective layer of the post-cast zone by bonding.

[0024] Preferably, in step (3), the temporary support device is an "eight-shaped" support device.

[0025] The main structure and construction method for rapid installation of cast strip steel mesh and water-stop steel plates provided by the present invention have the following beneficial effects compared with the prior art:

[0026] (1) Simplify installation and improve efficiency: The interlocking effect between the F-type clip and the upper and lower bidirectional steel bars of the foundation overcomes the disadvantage of the traditional method of welding short steel bars to the main structural steel bars to fix the waterstop steel plate. The traditional welding operation is eliminated, achieving rapid installation and avoiding the cumbersome steps and potential quality risks caused by welding.

[0027] (2) Economic and environmentally friendly: The "eight-shaped" support structure is detachable and not welded to the foundation steel bars, which is convenient for subsequent steel bar recycling. It not only effectively fixes the main structure, but also facilitates steel bar recycling, avoids material waste, and saves costs.

[0028] (3) Material optimization: By optimizing the construction process of the steel mesh fixed frame, the amount of steel bars used was significantly reduced, further reducing construction costs.

[0029] (4) Quality improvement: The addition of rubber water stop effectively solved the problem that the steel mesh could not block the gap between the outer side of the bottom steel bar and the waterproof protective layer, which led to leakage in this area during concrete pouring, thus affecting the durability of the concrete in the pouring section, thereby improving the overall project quality.

[0030] In summary, the present invention not only improves construction efficiency and safety, but also achieves optimization in terms of cost and sustainability. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The overall schematic diagram of the main structure;

[0032] Figure 2 This is a schematic diagram of the installation of rubber water stop;

[0033] Figure 3 This is a schematic diagram of the construction of the lower layer of two-way reinforcement;

[0034] Figure 4 Schematic diagram of the main structure installation completion;

[0035] Figure 5 This is a schematic diagram of the installation of upper-level two-way steel bars and timber;

[0036] Figure 6 This is a schematic diagram of the completion of concrete pouring;

[0037] In the figure, 1. Main structure; 11. F-type card; 111. Upper opening; 112. Lower opening; 2. Lower layer bidirectional steel bars; 3. Upper layer bidirectional steel bars; 4. Steel plate mesh; 5. Waterstop steel plate; 6. Rubber waterstop strip; 7. Wooden square; 8. Waterproof protective layer; 9. Temporary support device. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0041] like Figure 1 As shown, the present invention provides a main structure 1 for quickly installing a post-casting strip steel mesh 4 and a water-stop steel plate 5, comprising:

[0042] The F-shaped clamp 11 has an upper opening 111 and a lower opening 112, which are respectively used to clamp onto the upper bidirectional steel bars 3 and the lower bidirectional steel bars 2. The F-shaped clamp 11 securely connects the upper and lower bidirectional steel bars through its upper and lower openings 111 and 112, ensuring the overall stability of the structure.

[0043] The expanded metal mesh 4 is arranged on the F-shaped card 11. In the present invention, the expanded metal mesh 4 is preferably tied to the F-shaped card 11 by binding wire. This binding method not only ensures the firmness of the expanded metal mesh 4, but also facilitates the construction operation.

[0044] The water-stop steel plate 5 is provided on the F-shaped card 11 and is located between the upper opening 111 and the lower opening 112. The water-stop steel plate 5 is preferably fixed to the F-shaped card 11 by welding or bolts to ensure a waterproof effect.

[0045] In the present invention, the main structure 1 can be prefabricated in advance in a processing plant. This prefabrication method greatly improves on-site installation efficiency and ensures construction quality.

[0046] In order to avoid the technical problems of the traditional post-casting water-stop steel plate 5 installation construction method, there is a lot of waste of steel bars and the need to weld on the main structure steel bars, and the existing practice cannot avoid leakage and lead to reduced durability of concrete, such as Figure 2-6 As shown, the present invention also provides a construction method for quickly installing the post-casting strip steel mesh 4 and the water-stop steel plate 5, comprising the following steps:

[0047] Step (1): Fixing the rubber water stop strip 6

[0048] After the construction of the waterproof protective layer 8 is completed, the lines are laid out on it according to the standard position of the post-casting strip drawing, and the rubber water stop strip 6 is fixed on both sides of the waterproof protective layer 8 of the post-casting strip, and its top elevation is slightly higher than the elevation of the lower steel bar of the bottom plate. Among them, the rubber water stop strip 6 is preferably fixed on both sides of the post-casting strip by bonding. By accurately laying out the lines and firmly fixing the rubber water stop strip 6 in the correct position (on both sides of the protective layer), and setting a reasonable top elevation (slightly higher than the lower steel bar of the bottom plate), it is ensured that the rubber water stop strip can maintain its preset position and working posture for a long time. The addition of the rubber water stop strip 6 effectively solves the problem that the steel plate mesh 4 cannot intercept the gap between the outside of the bottom steel bar and the waterproof protective layer 8, resulting in leakage in this part during concrete pouring, thereby affecting the durability of the concrete in the pouring section, and improving the overall project quality. This construction method maximizes the guarantee that the water stop strip forms a continuous, complete, tightly wrapped waterproof barrier within the entire length of the post-casting strip, effectively adapts to the structural deformation difference, and greatly improves the overall waterproof reliability, durability and construction feasibility of the post-casting strip joint (especially by optimizing the fixing effect by bonding).

[0049] Step (2), Binding of lower bidirectional steel bars 2

[0050] Bind the lower bidirectional steel bars 2 on the rubber water stop 6 so that the rubber water stop 6 is tightly wrapped around the lower bidirectional steel bars 2 to prevent the rubber water stop 6 from shifting due to the unilateral concrete pressure in the later stage;

[0051] Step (3): Installation and temporary fixation of the main structure 1

[0052] After the binding of the lower-layer two-way steel bars 2 is completed, the prefabricated main structure 1 is hoisted to the working surface, and the lower opening 112 of the F-type clamp 11 is clamped on the lower-layer two-way steel bars 2 to fix the lower part of the main structure 1; one end of the temporary support device 9 is spot-welded along the length of the water-stop steel plate 5, and the other end of the temporary support device 9 is supported on the waterproof protective layer 8, and is not welded to the lower-layer two-way steel bars 2, temporarily fixing the main structure 1. The setting of the temporary support device 9 ensures that the main structure 1 remains stable during the pouring process and avoids displacement. It is connected by welding at one end and the other end is not welded to the lower-layer two-way steel bars 2, which not only ensures the reliability of temporary fixation, but also facilitates subsequent dismantling without affecting the overall structure. The reasonable layout of the temporary support device 9 further improves construction efficiency and structural safety.

[0053] Step (4): Construction of upper bidirectional reinforcement 3 and template setting

[0054] Construct the upper bidirectional reinforcement 3, clamp the upper opening 111 of the F-shaped clamp 11 on the upper bidirectional reinforcement 3 to fix the upper part of the main structure 1, and set a full-length wooden square 7 on the outside of the F-shaped clamp 11 as a template. After completion, remove the temporary support device 9;

[0055] Step (5): concrete pouring

[0056] Pour concrete on both sides of the post-cast joint.

[0057] In the present invention, in step (1), the rubber water stop strip 6 is fixed on both sides of the waterproof protective layer 8 of the post-cast strip by bonding. By bonding and fixing, the rubber water stop strip 6 is tightly combined with the protective layer, thereby enhancing the waterproof effect. The adhesive is made of high-strength, water-resistant material to ensure long-term stability. After fixing, the surface of the water stop strip is smooth and warp-free, which effectively prevents leakage during concrete pouring and further improves the overall waterproof performance and structural durability of the post-cast strip.

[0058] In the present invention, in step (3), the temporary support device 9 is an "eight-shaped" support device. The design of the eight-shaped support device cleverly utilizes the principle of mechanics to disperse stress and enhance stability. It has a simple structure and is easy to install, which effectively reduces the difficulty of construction and improves work efficiency. By accurately calculating the position of the support point, it is ensured that the main structure 1 remains horizontal during the pouring process, avoiding deviation caused by gravity, and further ensuring the uniform force and long-term stability of the overall structure.

[0059] The above description is merely a preferred embodiment of the present invention. However, the scope of protection of the present invention is not limited thereto; any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. The main structure used for the rapid installation of post-casting steel plate mesh and water-stop steel plate is characterized by: include: The F-type clamp has an upper opening and a lower opening, which are used to clamp on the upper bidirectional steel bars and the lower bidirectional steel bars respectively; Expanded steel mesh, arranged on the F-shaped card; The water-stop steel plate is arranged on the F-shaped card and is located between the upper opening and the lower opening.

2. The main structure for rapid installation of expanded metal and water-stop steel plates in post-casting strips according to claim 1, characterized in that: The expanded metal is fastened to the F-type card with binding wire.

3. The main structure for rapid installation of expanded metal and water-stop steel plates in post-casting strips according to claim 1 or 2, characterized in that: The main structure is prefabricated in advance in the processing plant.

4. A construction method for quickly installing expanded metal and water-stop steel plates in post-casting zones, characterized in that: The steps include: Step (1): Fixing the rubber water stop strip After the waterproof protective layer is constructed, the rubber water stop strips are fixed on both sides of the waterproof protective layer of the post-cast belt, with the top elevation higher than the upper elevation of the steel bars under the bottom plate; Step (2): Binding of lower layer two-way reinforcement Bind the lower bidirectional steel bars on the rubber water stop strip so that the rubber water stop strip is tightly wrapped around the lower bidirectional steel bars to prevent the rubber water stop strip from shifting due to the pressure of unilateral concrete in the later stage. Step (3), installation and temporary fixation of the main structure according to any one of claims 1 to 3 After the lower layer of two-way reinforcement is tied, the prefabricated main structure is hoisted to the work surface, and the lower opening of the F-type clamp is clamped on the lower layer of two-way reinforcement to fix the lower part of the main structure; one end of the temporary support device is spot welded along the length of the waterstop steel plate, and the other end of the temporary support device is supported on the waterproof protective layer without being welded to the lower layer of two-way reinforcement to temporarily fix the main structure; Step (4): Upper bidirectional reinforcement construction and formwork setting During the construction of the upper two-way reinforcement, fix the upper part of the main structure with the upper opening of the F-type clamp on the upper two-way reinforcement. Set a full-length wooden square on the outside of the F-type clamp as a template. After completion, remove the temporary support device. Step (5): concrete pouring Pour concrete on both sides of the post-cast joint.

5. The construction method for rapid installation of expanded metal and water-stop steel plates in post-casting strips according to claim 4, characterized in that: In step (1), the rubber water stop strip is fixed on both sides of the waterproof protective layer of the post-casting belt by bonding.

6. The construction method for rapid installation of expanded metal and water-stop steel plates in post-casting strips according to claim 4, characterized in that: In step (3), the temporary support device is an "eight-shaped" support device.

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