Turnover precast slab post-cast strip protection structure

Abstract

The utility model provides a kind of turnover precast slab post-cast strip protection structure, it is related to building engineering technical field. Including concrete slab and post-cast strip cover plate, the inside of concrete slab is provided with water stop steel plate, two the post-cast strip reinforcement is arranged between concrete slab, the outer surface of post-cast strip reinforcement is welded with vertical reinforcement, the bottom of post-cast strip cover plate is provided with insertion slot, vertical reinforcement is inserted in the inner wall of insertion slot, the top of post-cast strip cover plate is provided with reserved hole;Disassembling protection structure is arranged between the post-cast strip cover plate and concrete slab, the present application is applicable to basement, vault, outer wall and post-cast strip of roof slab advance closure, waterproof protection and structure support. Its core lies in through standardization precast slab design, in combination with detachable connection technology, the quick installation of post-cast strip protection layer, efficient waterproof and multiple turnover use are realized, solve traditional process construction cycle long, cost is high, and the problems such as poor protection effect.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a reusable precast slab post-pouring strip protection structure. Background Technology

[0002] Traditional post-pouring strip protection technology has the following drawbacks:

[0003] 1. Brick protective layer: The 240mm thick masonry requires high-altitude work, which poses a safety hazard; the masonry efficiency is low, and it is prone to cracking and water seepage due to the limitation of mortar stability.

[0004] 2. Temporary sealing plate: It is easy for debris and silt to accumulate at the bottom, and its waterproof sealing performance is poor, requiring repeated cleaning and maintenance.

[0005] 3. Cast-in-place concrete protective layer: The construction period is long, and it is impossible to carry out waterproofing and backfilling work in advance, which affects the construction period.

[0006] 4. Non-reusability: Traditional cover plates are mostly for single use, resulting in significant material waste and high costs. Existing technologies such as plywood protection (easily deformed) and flat precast panels (weak waterproofing) also cannot simultaneously achieve a balance between sealing performance, structural strength, and reusability.

[0007] Therefore, this utility model provides a reusable precast slab post-pouring strip protection structure. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a reusable precast slab post-pouring strip protection structure.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: a reusable precast slab post-pouring strip protection structure, comprising a concrete slab and a post-pouring strip cover plate, wherein a water-stop steel plate is provided inside the concrete slab, and post-pouring strip reinforcing bars are provided between two concrete slabs, with vertical reinforcing bars welded to the outer surface of the post-pouring strip reinforcing bars, and an insertion groove is provided at the bottom of the post-pouring strip cover plate, wherein the vertical reinforcing bars are inserted into the inner wall of the insertion groove, and a reserved hole is provided at the top of the post-pouring strip cover plate; a disassembly and assembly protection structure is provided between the post-pouring strip cover plate and the concrete slab, the disassembly and assembly protection structure comprising a rectangular slot and a protective plate, wherein the rectangular slot is provided at the top of the concrete slab, and a rectangular block is fixedly connected to the bottom of the post-pouring strip cover plate, the rectangular block engaging with the rectangular slot.

[0010] Preferably, the number of vertical reinforcing bars is three, the number of post-cast strip reinforcing bars is two, and one side of the vertical reinforcing bars is fixedly connected to one side of the two post-cast strip reinforcing bars.

[0011] By setting vertical steel bars to form a supporting keel, it can be used in conjunction with the post-cast strip steel bars for support.

[0012] Preferably, the water-stop steel plate is U-shaped, and there are two water-stop steel plates, which are symmetrically arranged on opposite sides of the two concrete slabs.

[0013] By installing water-stop steel plates, the overall water-stopping performance can be improved, preventing water seepage from the top.

[0014] Preferably, a round steel lifting ring is provided inside the reserved hole.

[0015] By setting pre-drilled holes, round steel lifting rings can be installed, which facilitates lifting and transportation.

[0016] Preferably, the top of the concrete slab is provided with an installation groove, and the inner wall of the installation groove is provided with a second screw hole.

[0017] By setting up the mounting slot, components such as the first threaded clamp can be operated and installed.

[0018] Preferably, a first screw hole is provided on one side of the rectangular block, and a first threaded rod is threadedly connected to the inner wall of the first screw hole and the second screw hole.

[0019] By setting the first screw hole, it can be matched with the second screw hole to be fixed with the first threaded rod, thereby fixing the rectangular block and the rectangular slot.

[0020] Preferably, a rectangular ring plate is fixedly connected to the bottom of the protective plate, a rectangular block is fixedly connected to one side of the protective plate, a third screw hole is opened on the top of the concrete slab, a fourth screw hole is opened on the inner wall of the rectangular block, and a second threaded rod is threadedly connected to the inner walls of the third screw hole and the fourth screw hole.

[0021] By setting the third and fourth screw holes, the rectangular block can be fixed to the concrete slab in conjunction with the second threaded clamp.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] 1) Shorten the construction period: Waterproofing layer construction and earthwork backfilling can be carried out immediately after the precast slabs are installed, without waiting for the post-pouring strip to be sealed.

[0024] 2) Reduce costs: Precasting with leftover concrete results in high material utilization; it can be reused more than 50 times, saving 30% on labor and material costs.

[0025] 3) Improve quality: Tongue and groove splicing + waterproof mortar layer achieve zero leakage; weld the slab to the post-cast strip reinforcement to enhance the overall structure.

[0026] 4) Safe and efficient: The standardized prefabricated panels are lightweight (≤200kg), making them easy to hoist and reducing the risks of working at heights. Attached Figure Description

[0027] Figure 1 A schematic diagram of a reusable precast slab post-pouring strip protection structure provided by this utility model;

[0028] Figure 2 A schematic diagram of a reusable precast slab post-cast strip protection structure for concrete slabs provided by this utility model;

[0029] Figure 3 A schematic diagram of the structure of the post-cast strip cover plate of a reusable precast slab post-cast strip protection structure provided by this utility model;

[0030] Figure 4 This utility model provides a schematic diagram of the protective plate at the post-pouring strip protection structure of a reusable precast slab.

[0031] Legend:

[0032] 1. Concrete slab; 2. Waterstop steel plate; 3. Reinforcing steel in the post-cast strip; 4. Vertical reinforcing steel; 5. Cover plate for the post-cast strip; 6. Reserved holes; 7. Insertion groove;

[0033] 8. Disassembly and assembly of protective structure; 81. Rectangular slot; 82. Rectangular block; 83. Mounting slot; 84. First screw hole; 85. Second screw hole; 86. First threaded rod; 87. Protective plate; 88. Rectangular block; 89. Third screw hole; 810. Fourth screw hole; 811. Second threaded rod; 812. Rectangular ring plate. Detailed Implementation

[0034] 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.

[0035] Reference Figure 1-3A reusable precast slab post-cast strip protection structure includes a concrete slab 1 and a post-cast strip cover plate 5. A water-stop steel plate 2 is installed inside the concrete slab 1. Post-cast strip reinforcing bars 3 are installed between two concrete slabs 1. Vertical reinforcing bars 4 are welded to the outer surface of the post-cast strip reinforcing bars 3. An insertion groove 7 is opened at the bottom of the post-cast strip cover plate 5. The vertical reinforcing bars 4 are inserted into the inner wall of the insertion groove 7. The insertion groove 7 can be fixed with the vertical reinforcing bars 4. A reserved hole 6 is opened at the top of the post-cast strip cover plate 5. A disassembly and assembly protection structure 8 is provided between the post-cast strip cover plate 5 and the concrete slab 1. The disassembly and assembly protection structure 8 includes a rectangular slot 81 and a protective plate 87. The protective plate 87 can protect the installation groove 83. The rectangular slot 81 is opened at the top of the concrete slab 1. A rectangular block 82 is fixedly connected to the bottom of the post-cast strip cover plate 5. The rectangular block 82 is engaged with the rectangular slot 81. The rectangular block 82 can be engaged and fixed with the rectangular slot 81.

[0036] Reference Figure 1-3 There are three vertical reinforcing bars 4 and two post-cast strip reinforcing bars 3. One side of the vertical reinforcing bars 4 is fixedly connected to one side of the two post-cast strip reinforcing bars 3, and the vertical reinforcing bars 4 form a keel for support.

[0037] Reference Figure 3 The waterstop steel plate 2 is U-shaped, and there are two waterstop steel plates 2, which are symmetrically arranged on opposite sides of the two concrete slabs 1. The waterstop steel plate 2 can increase the waterproof performance.

[0038] Reference Figure 1 and Figure 4 The interior of the reserved hole 6 is equipped with a round steel lifting ring, which facilitates transportation.

[0039] Reference Figure 1 and Figure 2 The top of the concrete slab 1 is provided with an installation groove 83, and the inner wall of the installation groove 83 is provided with a second screw hole 85. The installation groove 83 can assist in the installation of components such as the first threaded rod 86.

[0040] Reference Figure 1 and Figure 4 A first screw hole 84 is provided on one side of the rectangular block 82, and a first threaded rod 86 is threadedly connected to the inner wall of the first screw hole 84 and the second screw hole 85.

[0041] Reference Figure 1 and Figure 4A rectangular ring plate 812 is fixedly connected to the bottom of the protective plate 87, and a rectangular block 88 is fixedly connected to one side of the protective plate 87. A third screw hole 89 is opened on the top of the concrete slab 1, and a fourth screw hole 810 is opened on the inner wall of the rectangular block 88. A second threaded rod 811 is threadedly connected to the inner walls of the third screw hole 89 and the fourth screw hole 810. The second threaded rod 811 can cooperate with the third screw hole 89 and the fourth screw hole 810 to fix the protective plate 87.

[0042] Working principle:

[0043] like Figure 1-4 As shown:

[0044] 1) Precast slab structure design:

[0045] Dimensions and reinforcement: The standard dimensions of the precast slab are 1200×800×100mm (adjustable). It uses C30P6 impermeable concrete, with a built-in φ8@200mm double-layer steel mesh, a protective layer thickness of 15mm, and 20mm flanges at both ends to enhance the splicing fit.

[0046] 2) Connecting components: The concrete slab 1 has pre-embedded grooves on both sides and angle steel against the top, which are adjusted and fixed by spring bolts to accommodate post-pouring strips of different widths; the top is equipped with a round steel lifting ring with a diameter of 8mm for easy hoisting and turnover.

[0047] 3) Waterproofing construction: The joints of the concrete slabs are connected by tongue and groove joints, the surface is coated with 50mm rounded waterproof mortar, and an additional waterproof layer (such as SBS membrane) is laid. The galvanized steel sleeve is embedded in the slab with a 5cm flange to prevent leakage.

[0048] 4) Reusable system:

[0049] Support keel: Three square tube keels (vertical steel bars 4) are welded to the bottom of the slab, and square tube positioning support points are set on both sides, which are welded and fixed to the post-cast strip steel bars 3 to enhance the load-bearing capacity and resistance to disturbance.

[0050] Disassembly design: It adopts a slot-type connection or bolt fixation, making disassembly and assembly convenient; the surface of the plate is equipped with an anti-slip and anti-rust layer to extend its service life.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A reusable precast slab post-cast strip protection structure, comprising a concrete slab (1) and a post-cast strip cover plate (5), characterized in that, The concrete slab (1) is provided with a water-stop steel plate (2) inside, and a post-cast strip reinforcement (3) is provided between the two concrete slabs (1). The outer surface of the post-cast strip reinforcement (3) is welded with vertical reinforcement (4). The bottom of the post-cast strip cover plate (5) is provided with an insertion groove (7). The vertical reinforcement (4) is inserted into the inner wall of the insertion groove (7). The top of the post-cast strip cover plate (5) is provided with a reserved hole (6). A disassembly and assembly protection structure (8) is provided between the post-pouring strip cover plate (5) and the concrete slab (1). The disassembly and assembly protection structure (8) includes a rectangular slot (81) and a protective plate (87). The rectangular slot (81) is opened on the top of the concrete slab (1). A rectangular block (82) is fixedly connected to the bottom of the post-pouring strip cover plate (5). The rectangular block (82) is engaged with the rectangular slot (81).

2. The reusable precast slab post-pouring strip protection structure according to claim 1, characterized in that: The number of vertical reinforcing bars (4) is three, and the number of post-cast strip reinforcing bars (3) is two. One side of the vertical reinforcing bars (4) is fixedly connected to one side of the two post-cast strip reinforcing bars (3).

3. The reusable precast slab post-pouring strip protection structure according to claim 1, characterized in that: The water-stop steel plate (2) is U-shaped, and there are two water-stop steel plates (2) which are symmetrically arranged on opposite sides of the two concrete slabs (1).

4. The reusable precast slab post-pouring strip protection structure according to claim 1, characterized in that: A round steel lifting ring is installed inside the reserved hole (6).

5. The reusable precast slab post-pouring strip protection structure according to claim 1, characterized in that: The top of the concrete slab (1) is provided with an installation groove (83), and the inner wall of the installation groove (83) is provided with a second screw hole (85).

6. The reusable precast slab post-pouring strip protection structure according to claim 5, characterized in that: The rectangular block (82) has a first screw hole (84) on one side, and the inner walls of the first screw hole (84) and the second screw hole (85) are threadedly connected to a first threaded rod (86).

7. The reusable precast slab post-pouring strip protection structure according to claim 1, characterized in that: A rectangular ring plate (812) is fixedly connected to the bottom of the protective plate (87), and a rectangular block (88) is fixedly connected to one side of the protective plate (87). A third screw hole (89) is opened on the top of the concrete slab (1), and a fourth screw hole (810) is opened on the inner wall of the rectangular block (88). A second threaded rod (811) is threadedly connected to the inner walls of the third screw hole (89) and the fourth screw hole (810).

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