A post-cast strip structure for basement exterior walls

Abstract

This utility model discloses a post-cast strip pouring structure for basement exterior walls. It includes a main wall pouring section and post-cast strips connecting these sections. Wall panel templates are provided on both the inner and outer sides of the main wall pouring section, and wire mesh is provided on the end face of the main wall pouring section. A water-stop steel plate is provided on the outer side of the post-cast strip, and a post-cast strip template connected to the wall panel template is provided on the inner side. The wire mesh and wall panel templates form a pre-pouring cavity for pouring the main wall pouring section, and the wire mesh, post-cast strip template, and water-stop steel plate together form a post-pouring cavity. The advantages are: using a water-stop steel plate as the main waterproof barrier, which is welded to the anchoring steel bars and the main wall pouring section to form a rigid whole, firmly embedded in the pre-poured concrete, effectively resisting uneven settlement of the foundation and structural deformation, ensuring the long-term effectiveness and reliability of the pre-water-stopping effect.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a post-cast strip structure for basement exterior walls. Background Technology

[0002] With the continuous development of my country's national economy, there are increasingly more high-rise, large-scale, and complex-shaped buildings. To address issues such as differential settlement between the main building and the podium, concrete shrinkage cracking, and concrete tensile cracking due to temperature changes, it is necessary to install post-cast strips with different functions. These include temperature-controlled and settlement-controlled post-cast strips. To shorten the construction period and alleviate pressure from insufficient material transportation routes and construction sites, it is necessary to expedite the waterproofing of the basement exterior walls and the backfilling of the trench. Currently, the conventional methods used are advanced waterproofing construction technology for post-cast strips and precast slab sealing construction technology for post-cast strips. However, through construction practice, neither of these technologies has achieved the desired results. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a post-cast strip structure for basement exterior walls that can effectively waterproof and improve construction efficiency.

[0004] To solve the above-mentioned technical problems, the post-cast strip pouring structure for the basement exterior wall of this utility model includes a main wall pouring section and a post-cast strip for connecting each main wall pouring section. The inner and outer sides of the main wall pouring section are respectively provided with wall panel templates, and the end face of the main wall pouring section is provided with wire mesh. The outer side of the post-cast strip is provided with a water-stop steel plate, and the inner side of the post-cast strip is provided with a post-cast strip template connected to the wall panel template. The wire mesh and the wall panel template form a pre-casting cavity for pouring the main wall pouring section, and the wire mesh, the post-cast strip template, and the water-stop steel plate form a post-casting cavity.

[0005] The water-stop steel plate extends to both sides of the main wall casting section and overlaps with the wall panel template.

[0006] The inner side of the overlap section between the waterstop steel plate and the wall panel template is provided with anchoring steel bars that extend inward and are perpendicular to the waterstop steel plate.

[0007] The main wall casting section has a main steel reinforcement frame, and the anchoring steel bars are connected to the main steel reinforcement frame by welding or binding.

[0008] A central waterstop steel plate is provided at the center between the front pouring cavity and the rear pouring cavity, spanning both. Part of the central waterstop steel plate is located in the front pouring cavity and is embedded in the main pouring section of the wall after pouring, while the other part extends into the rear pouring cavity and is eventually embedded in the rear pouring strip.

[0009] The wall panel templates are tightened and fixed together by water-stop bolts.

[0010] The anchoring steel bars are installed at 200mm intervals along the height direction of the waterstop steel plate.

[0011] The wire mesh is fixed to the main steel reinforcement frame by binding.

[0012] The wall panel template is provided with longitudinal strips between it and the main steel reinforcement frame. The thickness of the strips is 50mm.

[0013] The outer side of the wall panel template is provided with longitudinal timber pressing joints, and the outer side of the timber is provided with transverse steel pipe pressing joints.

[0014] Advantages of this utility model: (1) Water-stop steel plate is used as the main waterproof barrier. It is welded with anchor steel bars and the main pouring section of the wall to form a rigid whole. It is firmly embedded in the pre-poured concrete and can effectively resist uneven settlement of the foundation and structural deformation, ensuring the long-term effectiveness and reliability of the advanced water-stopping effect. (2) The central water-stop steel plate is firmly connected to the main wall sections on both sides by water-stop bolts, forming a rigid support system, which greatly enhances the overall stability of the post-pouring strip formwork when pouring concrete and effectively prevents the problems of formwork bulging, deformation or displacement. (3) The wire mesh can effectively intercept concrete slurry and prevent it from flowing away, which reduces material waste and forms a rough construction joint interface. The strips and the formwork of the post-pouring strip ensure that the concrete forming surface is flat and smooth, providing excellent conditions for the tight bonding of the later post-pouring concrete. (4) The present invention enables the post-pouring strip of the basement exterior wall to be reliably sealed and waterproofed during the initial pouring stage, providing a sufficient working surface for subsequent exterior wall waterproofing construction and trench backfilling, shortening the waiting period of traditional post-pouring strip construction and improving construction efficiency. Attached Figure Description

[0015] Figure 1 This is a top view of the post-cast strip structure of the basement exterior wall of this utility model; Figure 2 This is a front view of the steel plate in the post-cast strip structure of the basement exterior wall of this utility model. Detailed Implementation

[0016] The post-cast strip pouring structure for basement exterior walls of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0017] The basement exterior wall post-cast strip structure includes the main wall casting section and the post-cast strip connecting the main wall casting sections. Wall panel templates 1 are provided on both the inner and outer sides of the main wall casting section, and the wall panel templates 1 are tightened and fixed together by water-stop bolts 8. A wire mesh 2 is provided on the end face of the main wall casting section. A water-stop steel plate 5 is provided on the outer side of the post-cast strip, and a post-cast strip template connected to the wall panel template 1 is provided on the inner side of the post-cast strip. The wire mesh 2 and the wall panel template 1 form a pre-casting cavity 3 for casting the main wall casting section, and the wire mesh 2, the post-cast strip template, and the water-stop steel plate 5 form a post-casting cavity 4. The water-stop steel plate 5 is 3mm thick, and both sides of the water-stop steel plate 5 extend to the main wall casting section and overlap with the wall panel template 1, with each overlap being 100mm. The inner side of the water-stop steel plate 5 has an inward fold. Anchor bars 7, which are φ12 steel bars, are bent and spaced 200mm apart along the height direction of the waterstop steel plate 5. The main wall casting section has a main steel frame 10, and the anchor bars 7 are connected to the main steel frame 10 by welding or binding. A central waterstop steel plate 6 is provided at the center between the front casting cavity 3 and the rear casting cavity 4, which spans both. A part of the central waterstop steel plate 6 is located in the front casting cavity 3 and is embedded in the main wall casting section after casting, and the other part extends into the rear casting cavity 4 and is finally embedded in the post-cast strip. The wire mesh 2 is fixed to the main steel frame 10 by binding. A longitudinal strip 9 with a thickness of 50mm is provided between the wall panel template 1 and the main steel frame 10. A longitudinal wooden block 11 is provided on the outside of the wall panel template 1, and a transverse steel pipe is provided on the outside of the wooden block 11.

Claims

1. A post-cast strip structure for basement exterior walls, characterized in that: The system includes a main wall casting section and a post-cast strip for connecting the main wall casting sections. The main wall casting section has wall panel templates (1) on its inner and outer sides respectively. The end face of the main wall casting section is provided with wire mesh (2). The outer side of the post-cast strip is provided with a water-stop steel plate (5). The inner side of the post-cast strip is provided with a post-cast strip template connected to the wall panel template (1). The wire mesh (2) and the wall panel template (1) form a pre-casting cavity (3) for casting the main wall casting section. The wire mesh (2), the post-cast strip template, and the water-stop steel plate (5) form a post-casting cavity (4).

2. The basement exterior wall post-cast strip pouring structure according to claim 1, characterized in that: The water-stop steel plate (5) extends to both sides of the main body of the wall and overlaps with the wall panel template (1).

3. The basement exterior wall post-cast strip pouring structure according to claim 2, characterized in that: The inner side of the overlap section between the waterstop steel plate (5) and the wall panel template (1) is provided with anchoring steel bars (7) that extend inward and are perpendicular to the waterstop steel plate (5).

4. The basement exterior wall post-cast strip pouring structure according to claim 3, characterized in that: The main wall casting section has a main steel reinforcement frame (10), and the anchoring steel reinforcement (7) is connected to the main steel reinforcement frame (10) by welding or binding.

5. The basement exterior wall post-cast strip pouring structure according to claim 1, characterized in that: A central waterstop steel plate (6) is provided at the center between the front pouring cavity (3) and the rear pouring cavity (4), spanning both. A part of the central waterstop steel plate (6) is located in the front pouring cavity (3) and is embedded in the main pouring section of the wall after pouring, while the other part extends into the rear pouring cavity (4) and is finally embedded in the rear pouring strip.

6. The basement exterior wall post-cast strip pouring structure according to claim 1, characterized in that: The wall panel templates (1) are tightened and fixed together by water-stop screws (8).

7. The basement exterior wall post-cast strip pouring structure according to claim 3, characterized in that: The anchoring steel bars (7) are set at intervals of 200mm along the height direction of the waterstop steel plate (5).

8. The basement exterior wall post-cast strip pouring structure according to claim 4, characterized in that: The wire mesh (2) is fixed to the main steel reinforcement frame (10) by binding.

9. The basement exterior wall post-cast strip pouring structure according to claim 1, characterized in that: A longitudinal strip (9) is provided between the wall panel template (1) and the main steel reinforcement frame (10), and the thickness of the strip (9) is 50mm.

10. The basement exterior wall post-cast strip pouring structure according to claim 1, characterized in that: The outer side of the wall panel template (1) is provided with longitudinal wooden strips (11) for pressing, and the outer side of the wooden strips (11) is provided with transverse steel pipes for pressing.

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