Post-cast strip folding-free plate slurry blocking net closing construction structure

Abstract

The utility model discloses a post-cast strip folding-plate-free slurry blocking net closing construction structure, and relates to a basement foundation slab post-cast strip construction technology, in particular to a post-cast strip slurry blocking net construction structure in basement foundation slab construction. Comprising a folded plate slurry blocking net plate, a triangular supporting rib frame, a water stop steel plate and I-shaped steel. Lower folded plate slurry blocking net plates are arranged on the two sides of the position of the post-cast strip on the bottom-layer steel bars of the bottom plate, and triangular rib supporting frames are installed on the sides, back to the post-cast strip, of the lower folded plate slurry blocking net plates. Water stop steel plates are arranged above the lower folded plate slurry blocking net plate, and I-shaped steel is transversely arranged in the length direction of the two water stop steel plates at intervals; an upper folded plate slurry blocking screen plate and a lower folded plate slurry blocking screen plate which are arranged on the water stop steel plate are aligned in position; two ends of the upper folded plate slurry blocking screen plate are respectively welded with the side surfaces of the I-shaped steel. The problems that in the prior art, a supporting part of a fast and easy closing-up net is complex in structure, the supporting part needs to be disassembled after bottom plate concrete pouring is completed, and mounting and disassembling are strenuous are solved.

Description

Technical Field

[0001] This utility model relates to the construction technology of post-pouring strips for basement foundation slabs, specifically to the construction structure of grout-blocking mesh for post-pouring strips in the construction of basement foundation slabs. Background Technology

[0002] With the increasing scale of civil and industrial construction projects, the construction model of residential communities with all-basement layouts has become the norm. Due to the large scale of basements, post-cast strips in the foundation slab design are currently the most common and effective way to handle extra-long foundation slabs. Ensuring the construction quality of these post-cast strips and avoiding common waterproofing defects are frequent technical challenges during construction.

[0003] Chinese patent document CN119122011A discloses "A pre-cast water-stop strip structure and construction method for underground building foundation slabs." By incorporating waterproof components, the waterproofing effect of the post-cast strip can be improved. The lower and upper quick-closing meshes, along with the water-stop plate between them, can shield the concrete pouring of the foundation slab, ensuring uniform concrete filling and structural integrity. The water-stop plate effectively prevents water penetration into the building's interior, thus avoiding subsidence or deformation due to ground moisture erosion. The post-cast strip groove in this application is equipped with support components. These supports enhance the stability of the lower and upper quick-closing meshes during foundation slab concrete pouring, thereby improving the overall structural stability. However, the aforementioned support structure is complex, and it requires disassembly after the foundation slab concrete pouring is completed, resulting in costly and labor-intensive installation and disassembly.

[0004] In view of the above, this utility model is hereby applied for. Utility Model Content

[0005] This utility model provides a construction structure for the grout-stopping net without the need for folding the plate in post-pouring strips. It solves the problem that the support structure of the existing quick-closing net is complex, and the support needs to be disassembled after the bottom slab concrete is poured, which is costly and laborious.

[0006] To solve the above problems, this utility model adopts the following technical solution: a construction structure for the grout-stopping mesh without folding in the post-pouring strip, wherein the bottom reinforcement F of the basement waterproof protective layer and the cushion layer D is set on the bottom layer of the basement slab; characterized in that it includes a folded plate grout-stopping mesh, a triangular support frame 3, a water-stopping steel plate 4, and an I-beam 5; the folded plate grout-stopping mesh is divided into a lower folded plate grout-stopping mesh X and an upper folded plate grout-stopping mesh S according to different installation positions, and the two have the same structure, and the upper edge of the folded plate grout-stopping mesh has a folded edge 13 that bends downward to the side;

[0007] A folded plate grout-blocking mesh X is installed on both sides of the post-cast strip position above the bottom reinforcement F of the bottom slab. A triangular support frame 3 is installed on the side of the folded plate grout-blocking mesh X facing away from the post-cast strip. The triangular support frame 3 is spaced apart, with its upper end resting in the groove formed by the folded edge 13 of the folded plate grout-blocking mesh and its lower end welded to the bottom reinforcement F of the bottom slab.

[0008] A water-stop steel plate 4 is installed above the folded plate grouting mesh plate X. I-beams 5 are installed laterally at intervals along the length of the two water-stop steel plates 4. Several horizontal support steel bars 6 are installed below both ends of the I-beams 5. At least two sets of cross support steel bars 7 are supported below each horizontal support steel bar 6. The lower end of the cross support steel bars 7 is welded to the bottom layer steel bar F of the bottom plate, and the upper end of the cross is supported below the horizontal support steel bars 6.

[0009] Positioning ribs 2 are spaced apart along the length of the waterstop steel plate 4. Each pair of positioning ribs 2 forms a group. The upper folded plate grout-blocking mesh plate S is set between each pair of positioning ribs 2. The upper folded plate grout-blocking mesh plate S is aligned with the lower folded plate grout-blocking mesh plate X. The end shape of the upper folded plate grout-blocking mesh plate S matches the side shape of the I-beam 5. The two ends of the upper folded plate grout-blocking mesh plate S are welded to the side of the I-beam 5 respectively. Triangular support frames 3 are set on the outer side of the two upper folded plate grout-blocking mesh plates S respectively. The lower end of the triangular support frame 3 is welded to the waterstop steel plate 4.

[0010] Furthermore, the post-pouring strip non-folding plate grout-stopping mesh finishing construction structure of this utility model also has the following characteristics: the upper and lower parts of the folding plate grout-stopping mesh are long strips, the middle section is a folded steel plate 11, the vertical cross-section of the folded steel plate 11 is an angled structure, and the upper and lower edges of the folded steel plate 11 are respectively connected to the upper and lower parts of the folding plate grout-stopping mesh to form an integral structure.

[0011] Furthermore, the post-pouring strip non-folding plate grout-stopping mesh construction structure of this utility model also has the following characteristics: there are through holes on the angled steel plate.

[0012] Furthermore, the post-pouring strip non-folding plate grout-stopping mesh finishing construction structure of this utility model also has the following characteristics: the upper and lower parts of the folding plate grout-stopping mesh plate have punched corner pieces 12, the corner pieces 12 protrude to the side of the folding plate grout-stopping mesh plate, the inner side of the corner pieces 12 is vertically connected, and the folding plate grout-stopping mesh plate on the inner side of the corner pieces 12 has punching holes.

[0013] Furthermore, the post-pouring strip non-folded plate grout-stopping mesh finishing construction structure of this utility model also has the following characteristics: the triangular support frame 3 is composed of arc-shaped support 31 and inclined support 32. The upper end of the arc-shaped support 31 rests in the groove of the folded edge 13 of the folded plate grout-stopping mesh plate. The lower end of the arc-shaped support 31 is welded to the lower edge of the folded plate grout-stopping mesh plate and the bottom layer steel bar F of the bottom plate. The upper end of the inclined support 32 is welded to the middle position of the arc-shaped support 31, and the lower end is welded to the bottom layer steel bar F of the bottom plate.

[0014] Advantages of this utility model:

[0015] 1. Folded plate grout-blocking mesh is used as the grout-blocking mesh on both sides of the post-cast strip. The middle section of the folded plate grout-blocking mesh has a folded steel plate. The folded steel plate is formed at an angle during processing. During construction, it can be bent at the folded position as needed (no need to bend the corner on the flat plate, thus achieving corner-free bending). It is suitable for the construction of post-cast strips of different heights and sizes.

[0016] 2. Triangular support frames are used to support the folded plate grout-blocking mesh panels. These frames can be adjusted according to the height of the mesh panels to meet project requirements. The folded plate grout-blocking mesh panels and their supporting structure are simple, saving time and labor in installation and dismantling. Furthermore, they do not need to be removed after construction. Their high strength ensures the compaction of the concrete at the finishing points, improving construction quality. This increases construction efficiency, saves machinery and labor, and shortens the construction period.

[0017] 3. Positioning ribs are pre-welded onto the water-stop steel plate to facilitate the installation of the upper folding plate grout-blocking mesh. After the main triangular support frame of the positioning ribs is poured, it is anchored in the concrete, making the structure more stable.

[0018] 4. Folded plate grout-stopping mesh replaces quick-closing mesh. Through the post-pouring strip, the folded plate grout-stopping mesh is integrated with the concrete to form a permanent formwork, with strong adhesion and shear resistance at the joints. The folded plate grout-stopping mesh forms a rough and uniform surface at the joint, providing an ideal interface for the pouring of the post-pouring strip, eliminating the need for manual chiseling, roughening, and cleaning.

[0019] 5. The folded plate grout-blocking mesh is fabricated according to the dimensions of the post-pouring strip. It is made of thin galvanized steel sheet with punched "insertion plate holes," and a bendable steel plate is installed in the middle of the galvanized steel sheet for easy adjustment of the installation width. A supporting structure is set according to its own strength, resulting in higher strength and rigidity, and faster and more convenient construction. Attached Figure Description

[0020] Figure 1 This is a top view of the present invention;

[0021] Figure 2 This is a schematic diagram of the folded plate slurry-blocking mesh structure of this utility model;

[0022] Figure 3 yes Figure 2 Enlarged view of the partial construction at point I;

[0023] Figure 4 yes Figure 3 CC section view;

[0024] Figure 5 This is a structural diagram of a triangular support frame;

[0025] Figure 6 yes Figure 1 AA section view;

[0026] Figure 7 yes Figure 1 BB section view;

[0027] Figure 8 This is a schematic diagram of the structure after the concrete pouring construction was carried out;

[0028] Figure 9 This is a perspective view of the installation of the folding plate grout-blocking mesh plate of this utility model;

[0029] Figure 10 This utility model includes a schematic diagram of the installation of a water-stop steel plate and an I-beam.

[0030] Figure 11 This is a schematic diagram of the installation of the folded plate slurry-blocking mesh plate of this utility model.

[0031] Symbol explanations in the diagram: D for basement waterproofing protective layer and cushion layer, E for post-pouring strip, F for bottom layer reinforcement of bottom slab, G for top layer reinforcement of bottom slab, H for upper formwork, J for post-pouring strip cover plate, X for lower folded plate grout-blocking mesh plate, S for upper folded plate grout-blocking mesh plate, 11 for angled steel plate, 12 for left-angled piece, 13 for folded edge, 2 for positioning vertical reinforcement, 3 for triangular support frame, 31 for arc-shaped support, 32 for diagonal support, 4 for water-stop steel plate, 5 for I-beam, 6 for horizontal support reinforcement, and 7 for cross support reinforcement. Detailed Implementation

[0032] The present invention will now be described in detail using the preferred embodiments.

[0033] like Figure 1-4 As shown, the construction structure for the grout-stopping joint of the post-cast strip without bending of the folded plate grout-stopping mesh includes a folded plate grout-stopping mesh, a triangular support frame 3, a water-stopping steel plate 4, and an I-beam 5. The folded plate grout-stopping mesh is divided into a lower folded plate grout-stopping mesh X and an upper folded plate grout-stopping mesh S according to different installation positions, and the two have the same structure. The upper edge of the folded plate grout-stopping mesh has a folded edge 13 that bends downwards and to the side. The upper and lower parts of the folded plate grout-stopping mesh are long strips, and the middle section is a folded angled steel plate 11. The vertical cross-section of the folded angled steel plate 11 is angular. The upper and lower edges of the folded angled steel plate 11 are connected to the upper and lower parts of the folded plate grout-stopping mesh to form an integral structure. The folded angled steel plate 11 has a through hole, which is circular. The angle that can be bent by bending the folded angled steel plate 11 is convenient for adjusting the installation height. In use, the folded angled steel plate 11 can be bent according to the height of the post-cast strip, and then the height of the folded plate grout-stopping mesh can be adjusted as needed. The upper and lower parts of the folded plate grout barrier have stamped corner pieces 12, which protrude to the side of the folded plate grout barrier. The inner side of the corner pieces 12 is open and closed, and there are stamping holes on the inner side of the folded plate grout barrier.

[0034] like Figure 1 , 5As shown in Figures 6, 7, 8, and 9, post-pouring strip lines are marked on both sides of the post-pouring strip E on the basement waterproof protective layer and cushion layer D. The bottom layer reinforcement F of the basement slab is installed on top of the basement waterproof protective layer and cushion layer D. Lower folded plate grout-blocking mesh panels X are installed at the post-pouring strip lines on the bottom layer reinforcement F of the basement slab. Triangular support frames 3 are installed on the side of the lower folded plate grout-blocking mesh panel X facing away from the post-pouring strip. The triangular support frames 3 are spaced apart, with their upper ends resting in the groove formed by the folded edge 13 of the folded plate grout-blocking mesh panel, and their lower ends welded to the bottom layer reinforcement F of the basement slab. The triangular support frames 3 are composed of arc-shaped support bars 31 and inclined support bars 32. The upper end of the support bar 31 rests in the groove of the folded edge 13 of the folded plate grout-blocking mesh. The lower end of the arc-shaped support bar 31 is welded to the lower edge of the folded plate grout-blocking mesh and the bottom layer steel bar F of the bottom plate. The upper end of the inclined support bar 32 is welded to the middle position of the arc-shaped support bar 31, and the lower end is welded to the bottom layer steel bar F of the bottom plate. During construction, the arc-shaped support bar 31 can be bent manually or with the help of pliers to suit the height of the folded plate grout-blocking mesh of different heights. By welding the inclined support bar 32, stable support is provided for the folded plate grout-blocking mesh. During pouring, the triangular support bar frame 3 is anchored to the concrete, making the structure more stable.

[0035] like Figure 1 , 6 As shown in Figures 7, 8, 10, and 11, a water-stop steel plate 4 is installed above the lower folded plate grout-stop mesh plate X. I-beams 5 are horizontally spaced along the length of the two water-stop steel plates 4. Several horizontal supporting reinforcing bars 6 are installed below both ends of the I-beams 5. At least two sets of cross supporting reinforcing bars 7 are installed below each horizontal supporting reinforcing bar 6. The lower end of the cross supporting reinforcing bars 7 is welded to the bottom layer reinforcing bars F of the base plate, and the upper end is supported below the horizontal supporting reinforcing bars 6 at its intersection. The horizontal supporting reinforcing bars 6 and the cross supporting reinforcing bars 7 form a reinforcing bar support structure to ensure the stability of the I-beams 5. Positioning vertical bars 2 are spaced along the length of the water-stop steel plate 4, with two positioning vertical bars 2 forming a group. The upper folded plate grout-stop mesh plate S is placed between each pair of positioning vertical bars 2, and the upper folded plate grout-stop mesh plate S is aligned with the lower folded plate grout-stop mesh plate X. The end shape of the upper folded plate grout-stop mesh plate S matches the side shape of the I-beam 5, and both ends of the upper folded plate grout-stop mesh plate S are welded to the sides of the I-beam 5. Triangular support frames 3 are respectively installed on the outer sides of the two upper folded grout-blocking mesh panels S, and the lower ends of the triangular support frames 3 are welded to the water-stop steel plate 4. The welding of the upper folded grout-blocking mesh panel S with the I-beam 5 and the triangular support frames 3 securely fixes and installs the upper folded grout-blocking mesh panel S.

[0036] This utility model relates to a folded grout-blocking mesh panel, made from thin galvanized steel sheets processed according to the dimensions of post-cast strips. The steel sheets are punched with insert plates to form corner pieces. A bendable steel plate is placed in the middle of the folded grout-blocking mesh panel for easy adjustment of the installation height. It also boasts excellent mechanical properties and is lightweight, making it suitable for grout blocking in post-cast strips. It possesses advanced scientific principles and wide applicability. The folded grout-blocking mesh panel in the post-cast strip is used as a consumable formwork for fixing. When concrete is poured, the corner pieces on the mesh embed into the concrete, forming a mechanical wedge that connects to the adjacent poured block.

[0037] The folded grout-retaining mesh is welded with S-beams, resulting in higher strength and rigidity, and faster and more convenient construction. The folded mesh creates a rough and uniform surface, providing an ideal interface for post-pouring strips without the need for manual chiseling, roughening, or cleaning. After concrete pouring, the folded grout-retaining mesh does not need to be removed, saving time and labor, accelerating construction progress, and ensuring higher overall integrity. Its high strength guarantees the compaction of concrete at the finishing areas, improving construction quality. Construction is convenient, simple to operate, and highly efficient.

[0038] Construction process of this utility model:

[0039] I. Material Preparation

[0040] Based on the structural design drawings, check the thickness of the post-cast strip and calculate the specifications and quantity of the non-bending mortar-stopping mesh. Submit the material plan, arrange factory processing, and procure the materials. Upon arrival at the site, classify and stack the materials according to their specifications.

[0041] II. Binding of bottom reinforcement bars in the base slab

[0042] After the construction and acceptance of the basement waterproof protective layer and subbase layer are completed and the strength meets the construction conditions, the bottom layer of the base slab reinforcement is configured according to the base slab structure and the reinforcement is tied.

[0043] 3. Install the grout-stopping mesh and water-stopping steel plate.

[0044] Install the lower folded plate grout-blocking mesh according to the post-pouring strip position and weld it in place. Then install the water-stop steel plate. According to the structural design post-pouring strip structural node diagram, weld the vertical support steel bars composed of horizontal support steel bars and cross support steel bars. Then install the I-beams. The I-beams press on the water-stop steel plate to fix the water-stop steel plate.

[0045] IV. Installation and Fixing of the Upper Folded Plate Containment Mesh

[0046] Positioning ribs are pre-welded onto the waterstop steel plate, and an upper folded plate grout-blocking mesh plate is installed on the waterstop steel plate, along with a triangular support frame. The upper folded plate grout-blocking mesh plate is then welded to the I-beam.

[0047] The folded plate grout barrier mesh, based on its inherent non-folding characteristic, involves slightly folding the angled steel plates to facilitate placement. Due to its weldability, the folded plate grout barrier mesh can be temporarily fixed using spot welding. It is then further reinforced and secured using a triangular support frame.

[0048] V. Localized sealing with folded plate mortar mesh

[0049] During the construction of the folded plate grouting mesh, there will be joints and other areas. In some places where the gaps are large, hot-dip galvanized steel wire mesh is used to seal them. The steel wire mesh is tied to the folded plate grouting mesh with steel wire.

[0050] Formwork construction

[0051] Install the bottom slab surface reinforcement layer, then install the formwork and the post-pouring strip cover plate.

[0052] Pour the base slab concrete, cure the concrete, and clean the post-pouring strip.

Claims

1. A construction structure for post-cast strip without folding plate and grout-stopping mesh, wherein the bottom layer of the basement waterproof protective layer and cushion layer (D) is provided with bottom reinforcement (F); characterized in that, It includes a folded plate grout barrier, a triangular support frame (3), a water-stop steel plate (4), and an I-beam (5); the folded plate grout barrier is divided into a lower folded plate grout barrier (X) and an upper folded plate grout barrier (S) according to different installation positions, and the two have the same structure. The upper edge of the folded plate grout barrier has a folded edge (13) that bends to the side and downward. A folded plate grout-blocking mesh (X) is installed on both sides of the post-cast strip position of the bottom reinforcement (F) of the bottom slab. A triangular support frame (3) is installed on the side of the folded plate grout-blocking mesh (X) facing away from the post-cast strip. The triangular support frame (3) is spaced apart and its upper end is placed in the groove formed by the folded edge (13) of the folded plate grout-blocking mesh, and its lower end is welded to the bottom reinforcement (F) of the bottom slab. A waterstop steel plate (4) is installed above the folded plate grouting mesh plate (X). I-beams (5) are installed laterally at intervals along the length of the two waterstop steel plates (4). Several horizontal support steel bars (6) are installed below both ends of the I-beams (5). At least two sets of cross support steel bars (7) are supported below each horizontal support steel bar (6). The lower end of the cross support steel bar (7) is welded to the bottom layer steel bar (F) of the bottom plate, and the upper end of the cross is supported below the horizontal support steel bar (6). Positioning ribs (2) are spaced apart along the length of the waterstop steel plate (4). Each pair of positioning ribs (2) forms a group. The upper folded plate grout-blocking mesh plate (S) is set between each pair of positioning ribs (2). The upper folded plate grout-blocking mesh plate (S) and the lower folded plate grout-blocking mesh plate (X) are aligned. The shape of the end of the upper folded plate grout-blocking mesh plate (S) matches the shape of the side of the I-beam (5). The two ends of the upper folded plate grout-blocking mesh plate (S) are welded to the side of the I-beam (5). Triangular support frames (3) are set on the outside of the two upper folded plate grout-blocking mesh plates (S). The lower end of the triangular support frame (3) is welded to the waterstop steel plate (4).

2. The construction structure for post-pouring strip without folding plate and grout-stopping mesh closure as described in claim 1, characterized in that, The upper and lower parts of the folded plate grout barrier are long strips, and the middle section is a folded steel plate (11). The vertical cross-section of the folded steel plate (11) is angular. The upper and lower edges of the folded steel plate (11) are connected to the upper and lower parts of the folded plate grout barrier to form an integrated structure.

3. The construction structure for post-pouring strip without folding plate and grout-stopping mesh closure as described in claim 2, characterized in that, There are through holes in the angled steel plate.

4. The construction structure for post-pouring strip without folding plate and grout-stopping mesh closure as described in claim 2, characterized in that, The upper and lower parts of the folded plate grout barrier have stamped corner pieces (12), which protrude to the side of the folded plate grout barrier. The inside of the corner pieces (12) is open from top to bottom, and there are stamping holes on the folded plate grout barrier inside the corner pieces (12).

5. The construction structure for post-pouring strip without folding plate and grout-stopping mesh closure as described in claim 1, characterized in that, The triangular support frame (3) is composed of arc-shaped support bars (31) and inclined support bars (32). The upper end of the arc-shaped support bar (31) rests in the groove of the folded edge (13) of the folded plate grouting mesh. The lower end of the arc-shaped support bar (31) is welded to the lower edge of the folded plate grouting mesh and the bottom layer steel bar (F) of the bottom plate. The upper end of the inclined support bar (32) is welded to the middle position of the arc-shaped support bar (31), and the lower end is welded to the bottom layer steel bar (F) of the bottom plate.

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