Detachable water stop steel plate support frame for post-pouring belt

Abstract

The utility model discloses a kind of detachable waterstop steel plate support frames of post-cast strip, and it is related to the technical field of post-cast strip construction of building engineering. It aims to solve the problems of temporary support removal difficulty, resource waste and waterstop positioning instability in the prior art. It includes advanced waterstop, through reinforcing bar, bottom support assembly, horizontal and longitudinal fixed reinforcing bar;Bottom support assembly contains base plate and sleeve, and they are integrally welded, the inner wall of sleeve is provided with a polytetrafluoroethylene lubricating layer, the through reinforcing bar is inserted into the sleeve and connected with the advanced waterstop, and the bottom of the base plate has anti-slip protrusions;The two sides of the advanced waterstop are provided with folded edges, the horizontal and longitudinal fixed reinforcing bars are cross-bonded to form a grid shape with the through reinforcing bar, and the horizontal fixed reinforcing bar is provided with a quick closing net on one side. The support frame can realize the detachable recovery of the through reinforcing bar, save resources, and accurately position the waterstop, improve the support stability, ensure the waterproofing and structural quality of the post-cast strip, and is convenient and reliable for construction.

Description

Technical Field

[0001] This utility model provides a support frame, and particularly relates to a detachable waterstop steel plate support frame for post-pouring strips. Background Technology

[0002] In the field of post-pouring strip construction in building engineering, the advanced waterstop is a key waterproof structural component used to prevent water seepage in the post-pouring strip area. It needs to be supported by a support frame to ensure that it is in the correct position during the concrete pouring process, thereby ensuring the waterproof effect of the post-pouring strip. At the same time, components such as transverse fixing steel bars and longitudinal fixing steel bars are used to form a grid structure to tie and fix the reinforcement system, including the through steel bars, in order to jointly ensure the structural and waterproof integrity of the post-pouring strip area.

[0003] In existing technologies, the support for pre-cast waterstops often involves using temporary short vertical steel bars directly abutting the waterstop, combined with a grid formed by binding horizontal and vertical fixing steel bars for auxiliary fixation. However, these temporary short vertical steel bars often form non-removable connections with the waterstop or surrounding steel bars, making them difficult to remove after the post-cast strip is poured. This not only wastes steel resources but also easily disturbs the concrete structure near the post-cast strip during removal operations. Furthermore, the lack of a dedicated bottom positioning structure means that when supported solely by temporary short vertical steel bars, the waterstop is prone to displacement and tilting under the lateral pressure of the concrete, affecting its waterproofing performance. At the same time, the anti-slip effect between the bottom of the support and the base layer is poor, resulting in insufficient overall support stability and an inability to accurately guarantee the installation precision of the waterstop. Utility Model Content

[0004] To address the problems of resource waste, unstable positioning of waterstops, and insufficient support stability in existing technologies, this utility model provides a detachable waterstop steel plate support frame for post-cast strips. Its structure is reasonably designed, enabling the detachable and recyclable support components, while improving the positioning accuracy and support stability of the waterstop.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a detachable waterstop steel plate support frame for post-pouring strips, including an advanced waterstop strip, through-bar reinforcement, a bottom support component, transverse fixing reinforcement, and longitudinal fixing reinforcement. The advanced waterstop strip is elongated and arranged along the length of the post-pouring strip, with its two sides bent upwards to form folded edges, the folded edges forming a 90° angle with the main body to enhance the waterstop effect and structural rigidity; multiple through-bar reinforcements are arranged perpendicular to the length of the advanced waterstop strip, serving as the main load-bearing support for the waterstop strip; the bottom support component is located below the advanced waterstop strip and includes a base plate and a sleeve. The base plate is a rectangular steel plate with a thickness of 3-5mm, and the bottom is provided with conical anti-slip protrusions to enhance the friction with the base layer. The sleeve is a hollow tubular structure, spaced along the length of the base plate and welded to the base plate to form an integrated structure. The upper end face of the sleeve is connected to the advanced waterstop strip. The bottom surface abuts against the waterstop, and the centerline is collinear with the through-bar. The end of the through-bar away from the waterstop is inserted into the sleeve, and the inner diameter of the sleeve matches the outer diameter of the through-bar. The sleeve is 10-15cm long and has a polytetrafluoroethylene lubricating layer on the inner wall for later removal. Both the transverse and longitudinal fixing bars are set horizontally on one side of the advanced waterstop, with a diameter of 12-16mm. The two intersect perpendicularly to form a grid structure and are tied and fixed with the through-bar with a diameter of 16-20mm to enhance the overall structural stability. In addition, the side of the transverse fixing bar away from the advanced waterstop is equipped with a quick-closing mesh, which is tied and fixed with the grid-like bars to separate the concrete on both sides of the post-pouring strip.

[0006] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages compared with the prior art: This utility model achieves stable support for the advanced waterstop by using a sleeve of the bottom support component in conjunction with the through steel bar. The through steel bar can also be removed and recycled from the sleeve after pouring, eliminating the need for traditional temporary vertical short steel bars and saving resources. The folded edge design of the advanced waterstop, the mesh-like fixing steel bars, and the bottom anti-slip protrusions work together to significantly improve the positioning accuracy and support stability of the waterstop, preventing displacement during pouring. The quick-closing mesh ensures the connection quality of the structures on both sides of the post-pouring strip. The overall structure is highly detachable, convenient to construct, and suitable for widespread application.

[0007] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0008] Figure 1 This is an installation diagram of a detachable waterstop steel plate support frame for post-pouring strips according to this utility model. Figure 2This is a three-dimensional schematic diagram of the support frame of a detachable waterstop steel plate support frame for post-pouring strip according to the present invention. Figure 3 This is a bottom view of the support frame of a detachable waterstop steel plate support frame for post-pouring strip according to the present invention. Figure 4 This is an exploded view of the bottom support component of a detachable waterstop steel plate support frame for post-pouring strips according to this utility model.

[0009] As shown in the figure: 1. Advanced waterstop; 2. Through-steel reinforcement; 3. Bottom support assembly; 4. Base plate; 5. Sleeve; 6. Horizontal fixing reinforcement; 7. Longitudinal fixing reinforcement. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0011] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0012] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0013] like Figure 1 and Figure 2 As shown, in a detachable post-pouring strip waterstop steel plate support frame, the bottom support component 3 is the core support structure. The base plate 4 it includes is made of steel plate with a thickness of 3-5mm. The sleeve 5 is a hollow tubular structure and is vertically connected to the base plate 4 by welding. Multiple sets of sleeves 5 are arranged at intervals along the length of the base plate 4. Their inner diameter is matched with the outer diameter of the through steel bar 2 and their length is 10-15cm. The axis of the sleeve 5 is collinear with the axis of the through steel bar 2. The end of the through steel bar 2 away from the advanced waterstop 1 is inserted into the sleeve 5. At the same time, the upper end face of the sleeve 5 abuts against the bottom surface of the advanced waterstop 1. The inner wall of the sleeve 5 is provided with a lubricating layer made of polytetrafluoroethylene material. The bottom of the base plate 4 is also provided with multiple anti-slip protrusions that are evenly distributed in a conical shape.

[0014] In this embodiment, the advanced waterstop 1 is elongated and arranged along the length of the post-cast strip, with its two sides bent upwards to form folded edges at a 90° angle to the main body, and the folded edges are perpendicularly connected to the main body of the advanced waterstop 1; multiple through steel bars 2 penetrate the main body of the advanced waterstop 1 in a direction perpendicular to its length, with one end of the through steel bar 2 inserted into the sleeve 5 to form a sliding fit with the sleeve 5, and the other end extending to the other side of the advanced waterstop 1; the transverse fixing steel bar 6 is arranged horizontally on the side of the advanced waterstop 1 away from the sleeve 5, perpendicularly intersecting the through steel bar 2 and fixed by binding; the longitudinal fixing steel bar 7 is arranged horizontally on the same side, perpendicularly intersecting the transverse fixing steel bar 6 to form a mesh structure, and is also bound to the through steel bar 2; the quick-closing mesh is arranged on the side of the transverse fixing steel bar 6 away from the advanced waterstop 1, and its edge is bound to the transverse fixing steel bar 6 and the longitudinal fixing steel bar 7.

[0015] From the perspective of implementation key points and innovation, the beneficial effects produced by the combination of various components are significant: the integrated welding design of the base plate 4 and sleeve 5 in the bottom support component 3 not only ensures the overall rigidity of the support structure, but also forms directional support for the advanced waterstop 1 through the precise cooperation between the sleeve 5 and the through steel bar 2, avoiding the uneven stress caused by traditional decentralized support; the 10-15cm length of the sleeve 5 and the compatibility with the outer diameter of the through steel bar 2 not only ensures that the support depth is sufficient to resist the lateral pressure during concrete pouring, but also provides stable guidance for the through steel bar 2; the polytetrafluoroethylene lubricating layer on the inner wall reduces the frictional resistance between the through steel bar 2 and the sleeve 5, so that the through steel bar 2 can be easily pulled out after the post-pouring strip is poured for recycling and reuse, completely solving the problem of resource waste caused by the inability to remove temporary vertical short steel bars in the existing technology. The 43-5mm thick steel plate of the base plate, combined with the conical anti-slip protrusions at the bottom, significantly improves the contact stability between the support components and the base layer, preventing slippage of the support structure during construction and solving the defect of easy loosening at the bottom of traditional supports. The folded edge design of the advanced waterstop 1 enhances its own deformation resistance, and together with the grid-like constraint formed by the transverse fixing steel bar 6 and the longitudinal fixing steel bar 7, it effectively limits the displacement or tilting of the advanced waterstop 1 under the impact of concrete, ensuring the precise positioning of the waterproof structure. The quick-closing mesh, through its fixation with the grid steel bar, achieves reliable separation of the concrete on both sides of the post-pouring strip, preventing mixing during pouring and laying the foundation for the integrity of the subsequent secondary pouring. Through the synergistic effect of each component, the overall structure achieves detachable support while comprehensively improving the positioning accuracy and construction stability of the waterstop, combining economy and reliability.

[0016] like Figure 3 and Figure 4As shown, in this support frame, the advanced waterstop 1 is a long strip set along the length of the post-cast strip, with its two sides bent upwards to form folded edges at a 90° angle to the main body. Multiple through steel bars 2 are set through the support frame in a direction perpendicular to the length of the advanced waterstop 1. The transverse fixing steel bars 6 are set horizontally on one side of the advanced waterstop 1 and intersect perpendicularly with the through steel bars 2. The longitudinal fixing steel bars 7 are set horizontally on one side of the advanced waterstop 1 and intersect perpendicularly with the transverse fixing steel bars 6 to form a grid structure. Both the transverse fixing steel bars 6 and the longitudinal fixing steel bars 7 are tied and fixed to the through steel bars 2. The diameter of the transverse fixing steel bars 6 and the longitudinal fixing steel bars 7 is 12-16mm, and the diameter of the through steel bars 2 is 16-20mm. In addition, a quick-closing mesh is also included, which is set on the side of the transverse fixing steel bars 6 away from the advanced waterstop 1 and tied and fixed to the transverse fixing steel bars 6 and the longitudinal fixing steel bars 7.

[0017] In this embodiment, the detachable waterstop support frame for the post-pouring strip described in this utility model is installed during construction according to the following steps: The bottom support component 3 is placed at the preset position of the post-pouring strip base layer. The base plate 4 is made of 3mm thick steel plate, and the bottom conical anti-slip protrusion is in close contact with the base layer to ensure stability. The sleeve 5 is fixed to the base plate 4 by welding. The sleeve 5 is a hollow steel pipe with an inner diameter of 20mm and a length of 12cm, and the inner wall is coated with a polytetrafluoroethylene lubricating layer. Place the advanced waterstop 1 above the sleeve 5, so that its bottom surface abuts against the upper end surface of the sleeve 5, and bend the two sides of the waterstop upward at 90°. The 18mm diameter through steel bar 2 is inserted through the advanced waterstop 1 along the direction perpendicular to the length of the waterstop, and the lower end is inserted into the sleeve 5 to ensure that the center lines coincide. A transverse fixing steel bar 6 and a longitudinal fixing steel bar 7 with a diameter of 14mm are laid on one side of the advanced waterstop 1. The two intersect perpendicularly to form a grid structure, which is then tied and fixed with the through steel bar 2 by binding wire. Install the quick-closing mesh on the side of the horizontal fixed steel bar 6 away from the waterstop, and tie it to the mesh steel bar to complete the overall installation.

[0018] After the post-cast strip concrete is poured and reaches the design strength, the through steel bar 2 can be extracted from the sleeve 5 for recycling, thus achieving resource reuse.

[0019] When using this device, after cleaning and leveling the base layer, mark the design position of the post-pouring strip with a chalk line. Cut the quick-closing mesh to the width of the post-pouring strip and leave an overlap length. Before binding it with the horizontal and vertical fixing bars, check the flatness of the mesh surface. Before installing this device, complete the binding of the steel reinforcement skeleton on both sides of the post-pouring strip area and ensure that the spacing and elevation of the horizontal and vertical fixing bars meet the design requirements. After placing the bottom support components according to the chalk line position, adjust the height by using temporary shims to ensure that the upper end face of the sleeve is in close contact with the bottom surface of the advanced waterstop. Before inserting the through steel bar into the sleeve after penetrating the advanced waterstop, remove rust from its surface and apply a small amount of lubricant. After the entire support frame is installed, install the inner side of the template on both sides of the post-pouring strip and fit it with the quick-closing mesh. The template support system is fixed to the base layer with steel pipe frame. Avoiding the bottom support components, the concrete on both sides of the post-pouring strip is poured. During the pouring process, an immersion vibrator is used to vibrate evenly along the inside of the formwork to ensure that the concrete is dense. The vibrator is at least 10cm away from the waterstop to avoid direct impact that could cause displacement. After the concrete has cured to 70% of its design strength, the formwork on both sides is removed according to the principle of supporting first and then dismantling. After the post-pouring strip meets the design-specified pouring interval, debris and laitance in the post-pouring strip are cleaned and the position and integrity of the waterstop are checked. After confirming that everything is correct, the post-pouring strip concrete is poured. Before the concrete initially sets, a secondary finishing treatment is carried out in time. After curing is completed and the strength reaches 80% of the design value, the through steel bar is pulled out at a uniform speed along the sleeve axis. During the extraction process, the steel bar is kept stable to avoid shaking. The sleeve hole after extraction is sealed with waterproof mortar in layers and compacted and smoothed to be flush with the surrounding concrete surface.

[0020] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A detachable waterstop steel plate support frame for post-pouring strips, characterized in that, include: The advanced waterstop (1) is long and strip-shaped and is set along the length of the post-pouring strip; Multiple through steel bars (2) are installed through the advanced waterstop (1) in a direction perpendicular to the length of the advanced waterstop (1); Bottom support assembly (3) is disposed below the advanced waterstop (1). The bottom support assembly (3) includes a base plate (4) and a sleeve (5). The base plate (4) is a rectangular flat plate structure, and the sleeve (5) is a hollow tubular structure. Multiple sets of sleeves (5) are arranged at intervals along the length direction of the base plate (4) and are integrally and vertically connected to the base plate (4). The upper end face of the sleeve (5) abuts against the bottom surface of the advanced waterstop (1), and the axis of the sleeve (5) is collinear with the axis of the through steel bar (2). The end of the through steel bar (2) away from the advanced waterstop (1) is inserted into the sleeve (5). A horizontally fixed reinforcing bar (6) is set horizontally on one side of the advanced waterstop (1) and perpendicularly intersects with the through reinforcing bar (2); The longitudinal fixing steel bar (7) is set horizontally on one side of the advanced waterstop (1) and intersects perpendicularly with the transverse fixing steel bar (6) to form a grid structure. Both the transverse fixing steel bar (6) and the longitudinal fixing steel bar (7) are tied and fixed with the through steel bar (2).

2. The detachable waterstop steel plate support frame for post-pouring strips according to claim 1, characterized in that, The inner diameter of the sleeve (5) is adapted to the outer diameter of the through steel bar (2), and the length of the sleeve (5) is 10-15cm.

3. The detachable waterstop steel plate support frame for post-pouring strips according to claim 1, characterized in that, The base plate (4) is made of steel plate with a thickness of 3-5mm. The sleeve (5) and the base plate (4) are connected in an integrated manner by welding.

4. The detachable waterstop steel plate support frame for post-pouring strips according to claim 1, characterized in that, It also includes a quick-closing mesh, which is set on the side of the transverse fixing steel bar (6) away from the advanced waterstop (1) and is tied and fixed with the transverse fixing steel bar (6) and the longitudinal fixing steel bar (7).

5. A detachable waterstop steel plate support frame for post-pouring strips according to claim 1, characterized in that, The two sides of the advanced waterstop (1) are bent upward to form folded edges, and the folded edges form a 90° angle with the main body of the advanced waterstop (1).

6. The detachable waterstop steel plate support frame for post-pouring strips according to claim 1, characterized in that, The inner wall of the sleeve (5) is provided with a lubricating layer, which is made of polytetrafluoroethylene material.

7. A detachable waterstop steel plate support frame for post-pouring strips according to claim 1, characterized in that, The bottom of the base plate (4) is provided with multiple anti-slip protrusions, which are evenly distributed in a conical shape.

8. A detachable waterstop steel plate support frame for post-pouring strips according to claim 1, characterized in that, The diameters of the transverse fixing steel bar (6) and the longitudinal fixing steel bar (7) are both 12-16 mm, and the diameter of the through steel bar (2) is 16-20 mm.

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