Post-cast strip water stopping and plugging structure and construction method thereof

Abstract

The invention provides a post-cast strip water stopping and plugging structure and a construction method thereof. The post-cast strip water stopping and plugging structure comprises structural steel bars, water stopping steel plates, fixing devices, reinforcing pieces and connecting pieces, and the water stopping steel plates are parallel to the structural steel bars; the fixing devices abut against the two sides of the water stop steel plate in the thickness direction correspondingly, are aligned with the contour line of the to-be-poured structure and are connected with structural steel bars in a clamped mode. The two ends of the reinforcing pieces are connected to the fixing devices on the two sides of the same waterstop steel plate. The two ends of the connecting piece are connected to the corresponding reinforcing pieces on the two sides of the post-cast strip respectively. Fixing of the water stop plate and mounting of the plugging structure are combined, the construction technology is simplified, mounting and dismounting are convenient, and the construction efficiency can be improved; the fixing device and the water stop steel plate are tightly connected to form a plugging structure, so that good integrity and stability are achieved, and the concrete pouring quality effect of the post-cast strip part is improved; and the fixing device, the reinforcing piece and the connecting piece can be recycled, so that the construction cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of post-cast strip construction of buildings, and in particular relates to a post-cast strip water-stopping and blocking structure and a construction method thereof. Background Art

[0002] In industrial and civil construction, long structural projects must be left with post-cast strips. Post-cast strips are temporary construction joints left at the corresponding positions of the foundation slab, wall, and beam in order to prevent harmful cracks in cast-in-place reinforced concrete structures due to temperature, uneven shrinkage, and uneven settlement. Post-cast strips are usually constructed after the shrinkage of other structural concrete is completed; at the same time, water-stop steel plates need to be set at the positions of the post-cast strips to achieve a waterproof effect; in the prior art, the water-stop steel plates are positioned and fixed by welding steel bar positioning devices, and then the concrete on both sides of the post-cast strips is sealed with steel bar brackets, wire mesh, and hard formwork, which requires 2-3 workers to cooperate in the construction, and the welding operation has high requirements on the construction personnel, the overall installation and dismantling procedures are cumbersome, the construction efficiency is low, and the quality of the concrete molding after sealing is poor, and the steel bar positioning brackets, wire mesh, and formwork square timbers cannot be used in a turnover manner, which has an adverse effect on the construction period and cost savings. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a post-cast strip water-stopping and sealing structure and a construction method thereof, which simplifies the construction process, facilitates installation and disassembly, improves construction efficiency, and reduces construction costs.

[0004] The technical solution adopted by the present invention is: a post-casting belt water-stopping and plugging structure, comprising:

[0005] Structural steel bars, the structural steel bars respectively extending from preset positions of the to-be-cast structures on both sides of the post-cast strip to the post-cast strip;

[0006] a water stop steel plate, parallel to the structural reinforcement;

[0007] The fixing devices are respectively abutted against two sides of the water stop steel plate in the thickness direction, aligned with the contour line of the structure to be cast, and clamped with the structural steel bars;

[0008] A reinforcing member, both ends of which are respectively connected to the fixing devices on both sides of the same water-stop steel plate;

[0009] The connecting piece has two ends respectively connected to the corresponding reinforcing pieces on both sides of the post-cast strip.

[0010] Furthermore, the fixing device includes a main board and a folding plate vertically connected to the main board, the main board is aligned with the contour line of the proposed cast structure, and the folding plate is attached to the waterstop steel plate.

[0011] Furthermore, the main board is provided with a plurality of slots, the structural steel bars pass through the slots, and are fixed in the slots by means of clamps.

[0012] Furthermore, a reinforcing plate is vertically arranged on one side of the main board facing the post-cast strip, a reserved hole is arranged at one end of the reinforcing plate away from the main board, and the reinforcing member is passed through the reserved hole.

[0013] Furthermore, a plurality of the reinforcing plates are evenly arranged along the length direction of the main board.

[0014] Furthermore, the reinforcement plate is arranged between the waterstop steel plate and the structural steel bars.

[0015] Furthermore, a reinforcing plate is provided between the reinforcing plate and the main board.

[0016] Furthermore, the reinforcement member is fixed to the reinforcement plate by a fastener.

[0017] Furthermore, the connecting member is connected to the reinforcing member through an adapter.

[0018] The construction method of the post-casting strip water-stopping and plugging structure as described above comprises the following steps:

[0019] Tie the structural reinforcement on one side of the post-cast strip;

[0020] Install a fixing device at a preset position, allow the structural steel bar to pass through the slot of the fixing device, and install a fixture to close the slot;

[0021] Temporarily fix the water-stop steel plate so that the water-stop steel plate fits the folding plate of the fixing device;

[0022] Install another fixing device on the other side of the water stop steel plate, and connect the structural steel bars on the other side to the fixing device;

[0023] Install reinforcement pieces to connect the fixing devices on both sides of the water-stop steel plate into one;

[0024] Repeat the above steps to complete the binding of the structural steel bars on the other side of the post-cast strip, the installation of the water stop steel plate and the installation of the fixing device;

[0025] Install the connecting pieces to connect the corresponding reinforcing pieces on both sides of the post-cast strip into one piece;

[0026] pouring concrete of the proposed cast-in structure on both sides of the post-cast strip;

[0027] The connecting member, the reinforcing member and the fixing device are removed in sequence.

[0028] The advantages and positive effects of the present invention are: the present application is cleverly designed based on the positional relationship between the waterstop steel plate and the sealing structure, combining the fixation of the waterstop plate and the installation of the sealing structure, simplifying the construction process, and facilitating installation and disassembly, requiring only 1-2 workers to complete, thereby improving construction efficiency; a fixing device is tightly connected to the waterstop steel plate to form a sealing structure, which has good integrity and stability, does not require welding operations, and improves the quality of concrete pouring in the post-casting zone; the fixing devices, reinforcements and connectors in the present application can all be used in rotation, thereby reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view schematic diagram of a specific embodiment of the present invention;

[0030] Figure 2 is a schematic top view of a specific embodiment of the present invention;

[0031] Figure 3 is a schematic structural diagram of a fixing device according to a specific embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the installation of a fixing device according to a specific embodiment of the present invention.

[0033] In the figure:

[0034] 10. Proposed cast structure 20. Structural reinforcement 30. Fixing device

[0035] 31, main board 311, card slot 32, folding plate

[0036] 33. Reinforcement plate 331. Reserved hole 34. Reinforcement plate

[0037] 40, reinforcement 50, connection 51, adapter

[0038] 60. Post-cast strip 70. Water-stop steel plate DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described below with reference to the accompanying drawings.

[0040] The present invention proposes a post-cast strip water-stopping and sealing structure, which is used for the post-cast strip construction at positions such as foundation slabs, walls, and beams. The water-stopping steel plate can be accurately fixed at a preset position without the need for welding operations, and is easy to install and disassemble, thereby improving construction efficiency. It can be completed by only 1-2 workers, saving labor costs. The sealing quality is good, and no repair is required at a later stage. The dismantled fixing devices, fixings, and connecting parts can be used in a cyclic manner, further reducing construction costs.

[0041] like Figure 1 , Figure 2 As shown, in this embodiment, the post-casting strip water-stopping and plugging structure is used for the construction of the post-casting strip 60 of the wall; the post-casting strip water-stopping and plugging structure proposed by the present invention includes structural steel bars 20, water-stopping steel plates 70, fixing devices 30, reinforcement members 40 and connecting members 50: wherein the structural steel bars 20 extend from the preset positions of the intended cast structures 10 on both sides of the post-casting strip 60 to the post-casting strip 60; the water-stopping steel plates 70 are parallel to the structural steel bars 20. Specifically, water-stopping steel plates are required to be arranged at the junctions of the post-casting strip 60 and the structures to be constructed on both sides thereof. Plate 70, the waterstop steel plate 70 in this embodiment is arranged along the height direction of the wall, half of which is arranged in the width direction at the corresponding position of the proposed cast structure 10, and the other half needs to extend to the position of the post-cast strip 60; the fixing devices 30 are respectively abutted against the two sides of the waterstop steel plate 70 in the thickness direction, and are aligned with the contour line of the proposed cast structure 10, and are clamped with the structural steel bars 20; the two ends of the reinforcement 40 are respectively connected to the fixing devices 30 on both sides of the same waterstop steel plate 70; the two ends of the connecting member 50 are respectively connected to the corresponding reinforcement 40 on both sides of the post-cast strip 60.

[0042] In this embodiment, the above-mentioned structural steel bars 20 are structural steel bars 20 arranged horizontally and from top to bottom in the wall. The waterstop steel plate 70 is preferably arranged in the middle of the wall thickness, and the structural steel bars 20 are preferably steel bars closer to the outer edge in the wall thickness direction.

[0043] Normally, the two sides of the waterstop steel plate 70 in the thickness direction are respectively the water-facing surface and the water-receiving surface. The fixing device 30 in the present application is respectively in contact with the water-facing surface and the water-receiving surface of the waterstop steel plate 70, and at the same time is aligned with the contour line of the structure to be cast 10, thereby fixing the waterstop steel plate 70 in a preset position; at the same time, the specifications of the fixing device 30 are designed according to the thickness of the wall and the position of the structural steel bars 20. Since the structural steel bars 20 have been tied and fixed in advance, the fixing device 30 is fixed by the structural steel bars 20, so that the waterstop steel plate 70 between the two fixing devices 30 is accurately positioned at its designed position; the fixing device 30 is tightly connected to the waterstop steel plate 70 In one, the proposed cast-in-place structure 10 and the post-cast strip 60 are separated, so that the two can be used as a blocking structure during the concrete pouring construction of the proposed cast-in-place structure 10 after being connected, thereby realizing the blocking of the proposed cast-in-place structure 10; the fixing devices 30 on both sides of the water-stop steel plate 70 are connected as a whole by setting the reinforcement 40, and then the fixing devices 30 on both sides of the post-cast strip 60 are connected as a whole through the connecting member 50, thereby improving the integrity of the water-stopping and blocking structure, and the connecting member 50 pushes against the reinforcement 40 on both sides of the post-cast strip 60, so that the fixing device 30 is not easy to move and deform under the lateral pressure of concrete pouring, thereby ensuring the concrete appearance quality effect of the proposed cast-in-place structure 10.

[0044] Through the above technical scheme, the present application is cleverly designed based on the positional relationship between the waterstop steel plate 70 and the sealing structure, combining the fixation of the waterstop plate and the installation of the sealing structure, simplifying the construction process, and improving the quality of concrete pouring in the post-cast strip 60. At the same time, it is easy to install and disassemble, which is conducive to improving construction efficiency and reducing construction costs.

[0045] Furthermore, if Figure 3 , Figure 4 As shown, the above-mentioned fixing device 30 includes a main board 31 and a folding plate 32 vertically connected to the main board 31, the main board 31 is aligned with the contour line of the proposed cast structure 10, and is used to block the proposed cast structure 10; the folding plate 32 is attached to the waterstop steel plate 70, and is used to fix the waterstop steel plate 70 at its preset position, while realizing a seamless connection between the fixing device 30 and the waterstop steel plate 70, which is conducive to forming an overall blocking structure; by setting the folding plate 32, the contact area between the fixing device 30 and the waterstop steel plate 70 is increased, so that the folding plates 32 on both sides can better position the waterstop steel plate 70, and the waterstop steel plate 70 can be firmly fixed without adopting welding connection or the like, thereby reducing the difficulty of installing the waterstop steel plate 70, and avoiding the damage to the waterstop steel plate 70 caused by welding operation, thereby ensuring the waterstop effect of the waterstop steel plate 70.

[0046] Furthermore, the main board 31 is provided with a plurality of slots 311 , through which the structural reinforcement bars 20 pass and are fixed by means of fixtures.

[0047] The position of the slot 311 is designed according to the position of the structural steel bar 20. According to the different positions of the structural steel bar 20, a hole form or other slots 311 can be used. In a preferred embodiment, the structural steel bar 20 is a steel bar close to the edges on both sides of the wall thickness direction, and is arranged from top to bottom from the height of the wall. The slot 311 is preferably a U-shaped slot, and is located at the end of the main board 31 away from the folding plate 32, and is correspondingly distributed along the length direction of the main board 31. The opening of the U-shaped slot faces the edge of the main board 31. During installation, the structural steel bar 20 can pass through the slot 311 by fitting the folding plate 32 to the water stop steel plate 70, which makes installation more convenient. The shape of the fixture matches the slot 311, and as long as the slot 311 can be closed, its specific structure is not limited here.

[0048] Furthermore, a reinforcement plate 33 is vertically arranged on one side of the main board 31 facing the post-cast strip 60, and a reserved hole 331 is provided at one end of the reinforcement plate 33 away from the main board 31. The reinforcement member 40 is passed through the reserved hole 331, connecting the reinforcement plates 33 on both sides of the waterstop steel plate 70 as a whole, and then connecting the fixing devices 30 on both sides of the waterstop steel plate 70 as a whole.

[0049] Specifically, the reinforcing plate 33 has a sufficient length, which is greater than half the width of the waterstop steel plate 70 , so that the reinforcing member 40 can cross the waterstop steel plate 70 and connect the reinforcing plates 33 on both sides thereof together.

[0050] Furthermore, a plurality of reinforcement plates 33 are evenly arranged along the length direction of the main board 31. At this time, the relatively outer edges of the two main boards 31 located on both sides of the waterstop steel plate 70 are fixed by structural steel bars 20, and the two main boards 31 are connected and fixed by a plurality of reinforcement members 40. At the same time, the two main boards 31 clamp the waterstop steel plate 70, thereby achieving a more stable connection and fixation of the two fixing devices 30 and the waterstop steel plate 70.

[0051] Furthermore, the reinforcing plate 33 is arranged between the water stop steel plate 70 and the structural steel bar 20, and the three are distributed along the width of the main board 31, so that each part of the main board 31 is evenly stressed, which is beneficial to improving the stability of the overall connection structure.

[0052] Preferably, a reinforcing plate 34 is further provided between the reinforcing plate 33 and the main board 31; by providing the reinforcing plate 34, the strength of the main board 31 can be improved, and it is avoided that the reinforcing plate 33 is directly welded to the main board 31, which causes the strength of the connection part of the main board 31 to be reduced, forming a weak link that affects the blocking effect.

[0053] In a specific embodiment, the reinforcement 40 is arranged along the width direction of the main board 31, and the connecting member 50 is perpendicular to the reinforcement 40. To achieve a stable connection between the two, the connecting member 50 is connected to the reinforcement 40 through an adapter 51. Preferably, the fixing devices 30 on both sides of the rear foot belt are symmetrically arranged, that is, the reinforcements 40 on both sides of the post-casting strip 60 are also symmetrically arranged, and each reinforcement 40 is connected to another reinforcement 40 on the other side of the post-casting strip 60 through an adapter 51. At the same time, when the connecting member 50 is installed, it is pressed against the two reinforcements 40 on both sides, so that the fixing device 30 is sufficiently supported by the connecting member 50 under the lateral pressure of the concrete and will not be easily deformed or moved.

[0054] Preferably, the adapter 51 adopts fasteners commonly used in construction, and its specific structure is existing technology and will not be described in detail here; a number of connecting members 50 are evenly arranged between the corresponding two reinforcement members 40, and the connection part between the connecting member 50 and the reinforcement member 40 is preferably arranged between the two reinforcement plates 33 on the same side of the post-cast strip.

[0055] Further, the reinforcement member 40 is fixed to the reinforcement plate 33 by fasteners. Specifically, threads are provided at both ends of the reinforcement member 40, and nuts are used as fasteners. When both ends of the reinforcement member 40 pass through the reserved holes 331 of the reinforcement plate 33, nuts are provided on both sides of the reserved holes 331 to stably fix the reinforcement member 40 on the reinforcement plate 33. This method is more convenient for installation and removal, and is conducive to realizing the turnover of the fixing device 30, the reinforcement member 40 and the connecting member 50.

[0056] The second aspect of the present application also proposes a construction method for a post-casting strip water-stopping and plugging structure, comprising the following steps:

[0057] Tie up the structural steel bars 20 on one side of the post-cast strip 60 so that they extend into the post-cast strip 60;

[0058] Install a fixing device 30 at a preset position, pass the structural steel bar 20 through the slot 311 of the fixing device 30 of the structure 10 to be cast, and install a fixture to close the slot 311;

[0059] Temporarily fix the water-stop steel plate 70 so that the water-stop steel plate 70 fits the folding plate 32 of the fixing device 30, and ensure that the water-stop steel plate 70 is in a preset installation position;

[0060] Install another fixing device 30 on the other side of the waterstop steel plate 70, and connect the structural reinforcement 20 on the other side to the fixing device 30, and fix them with a clamp; check to ensure that the waterstop plate and the fixing devices 30 on both sides are tightly fitted and firmly connected.

[0061] Install the reinforcement member 40 to connect the fixing devices 30 on both sides of the water-stop steel plate 70 as a whole; specifically, pass the reinforcement member 40 through the reserved holes 331 of the corresponding two reinforcement plates 33, and use bolts to fix the reinforcement member 40 to the reinforcement plates 33;

[0062] Repeat the above steps to complete the binding of the structural steel bars 20 on the other side of the post-casting strip 60, the installation of the water stop steel plate 70 and the installation of the fixing device 30;

[0063] Install the connecting piece 50 to connect the corresponding reinforcing pieces 40 on both sides of the post-cast strip 60 into one body; specifically, use the adapter 51 for connection and fixation, the two corresponding reinforcing pieces 40 are connected by two connecting pieces 50, and the two connecting pieces 50 are respectively arranged near the connection position between the reinforcing piece 40 and the reinforcing plate 33, and are located between the two reinforcing plates 33 on the same side.

[0064] Pour the concrete of the proposed cast structure 10 on both sides of the post-cast strip 60; specifically, the formwork support of the proposed cast structure 10 has been completed before the concrete pouring, and ensure that the formwork is tightly fitted with the fixing device 30 in the present application to prevent leakage during the pouring process.

[0065] The connector 50, the reinforcement 40 and the fixture 30 are removed in sequence; specifically, after the concrete strength reaches the requirement, the connector 50, the reinforcement 40 and the fixture 30 in the present application can be removed and transferred to the next post-casting zone 60 for use.

[0066] The present application is cleverly designed based on the positional relationship between the waterstop steel plate and the sealing structure, combining the fixation of the waterstop plate and the installation of the sealing structure, thereby simplifying the construction process and facilitating installation and disassembly, requiring only 1-2 workers to complete the installation, thereby improving construction efficiency; a fixing device is tightly connected to the waterstop steel plate to form a sealing structure, which has good integrity and stability, does not require welding operations, and improves the quality of concrete pouring in the post-casting zone; the fixing devices, reinforcements and connectors in the present application can all be used in rotation, thereby reducing construction costs.

[0067] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A post-casting strip water-stopping and plugging structure, characterized in that: include: Structural steel bars, the structural steel bars respectively extending from preset positions of the to-be-cast structures on both sides of the post-cast strip to the post-cast strip; a water stop steel plate, parallel to the structural reinforcement; The fixing devices are respectively abutted against two sides of the water stop steel plate in the thickness direction, aligned with the contour line of the structure to be cast, and clamped with the structural steel bars; A reinforcing member, both ends of which are respectively connected to the fixing devices on both sides of the same water-stop steel plate; The connecting piece has two ends respectively connected to the corresponding reinforcing pieces on both sides of the post-cast strip.

2. A post-cast strip water-stopping and plugging structure according to claim 1, characterized in that: The fixing device includes a main board and a folding plate vertically connected to the main board, the main board is aligned with the contour line of the proposed cast structure, and the folding plate is attached to the water-stop steel plate.

3. A post-cast strip water-stopping and plugging structure according to claim 2, characterized in that: The main board is provided with a plurality of slots, and the structural steel bars pass through the slots and are fixed in the slots by means of clamps.

4. A post-cast strip water-stopping and plugging structure according to claim 2 or 3, characterized in that: A reinforcing plate is vertically arranged on one side of the main board facing the post-casting strip, a reserved hole is arranged at one end of the reinforcing plate away from the main board, and the reinforcing member is passed through the reserved hole.

5. A post-cast strip water-stopping and plugging structure according to claim 4, characterized in that: A plurality of reinforcing plates are evenly arranged along the length direction of the main plate.

6. A post-cast strip water-stopping and plugging structure according to claim 4, characterized in that: The reinforcement plate is arranged between the water stop steel plate and the structural steel bar.

7. A post-cast strip water-stopping and plugging structure according to claim 5 or 6, characterized in that: A reinforcing plate is also provided between the reinforcing plate and the main board.

8. A post-cast strip water-stopping and plugging structure according to claim 7, characterized in that: The reinforcement member is fixed to the reinforcement plate by a fastener.

9. A post-cast strip water-stopping and plugging structure according to any one of claims 1-3, 5-6 and 7, characterized in that: The connecting member is connected to the reinforcing member through an adapter.

10. The construction method of the post-cast strip water-stopping and plugging structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: Tie the structural reinforcement on one side of the post-cast strip; Install a fixing device at a preset position, allow the structural steel bar to pass through the slot of the fixing device, and install a fixture to close the slot; Temporarily fix the water-stop steel plate so that the water-stop steel plate fits the folding plate of the fixing device; Install another fixing device on the other side of the water stop steel plate, and connect the structural steel bars on the other side to the fixing device; Install reinforcement pieces to connect the fixing devices on both sides of the water-stop steel plate into one; Repeat the above steps to complete the binding of the structural steel bars on the other side of the post-cast strip, the installation of the water stop steel plate and the installation of the fixing device; Install the connecting pieces to connect the corresponding reinforcing pieces on both sides of the post-cast strip into one piece; pouring concrete of the proposed cast-in structure on both sides of the post-cast strip; The connecting member, the reinforcing member and the fixing device are removed in sequence.

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