Steel plate construction mechanism for closing post-cast strip of outer wall in advance
By using a welded structure of pre-embedded flat iron and steel plates in the post-pouring strip of the basement exterior wall, the problems of complex construction and leakage in traditional construction were solved, achieving efficient and safe construction results and reducing costs and time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG DAXIN ENG
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional construction of post-cast strips for basement exterior walls has problems such as complex construction, long curing period, large labor load, many safety hazards, high cost and easy leakage, which has a significant impact, especially in projects with limited construction sites.
The construction mechanism of pre-sealing steel plates for the external wall post-pouring strip is adopted, which includes pre-embedding flat irons on both sides of the concrete wall and fixing the steel plates with steel bar anchor nails. The steel plates are welded to the flat irons and deformable bends are set. The high strength and deformation capacity of the steel plates are utilized to adapt to the deformation requirements of the post-pouring strip.
It improved the safety and quality of construction, reduced the risk of leakage, shortened the construction period, reduced costs, and adapted to the limitations of the construction site.
Smart Images
Figure CN224259876U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of construction technology of post-cast strips for exterior walls, and relates to a construction mechanism for pre-sealing steel plates for post-cast strips of exterior walls. Background Technology
[0002] A construction joint is a concrete strip installed during building construction to prevent harmful cracks that may occur in reinforced concrete structures due to uneven shrinkage or settlement. It temporarily divides the structure into several parts, and after the internal shrinkage of the components has occurred, the concrete at this construction joint is poured again at an appropriate time to connect the structure into a whole.
[0003] In the construction of post-cast strips on basement exterior walls, traditional construction procedures include building protective walls and precast concrete protective panels. These methods are complex, have long curing cycles, and require a large amount of labor. The post-cast strips are left for a long time, which can lead to the outer trench not being backfilled in time, creating safety hazards. The project has a small construction site, which greatly affects the effective use of the site. In addition, there are no closed isolation measures, and the project is greatly affected by external factors. The overall cost is high, and the project cannot withstand structural settlement and shrinkage deformation. The post-cast strips are not subjected to stress during the secondary pouring process. Once damaged, they can easily damage the integrity of the exterior wall waterproofing and cause leakage. Utility Model Content
[0004] To address the aforementioned problems in the existing technology, this application provides a construction mechanism for pre-sealing steel plates for post-pouring strips in exterior walls.
[0005] The technical solution of this utility model is as follows:
[0006] A construction mechanism for pre-sealing steel plates in exterior wall post-pouring strips includes a wall post-pouring strip, concrete walls on both sides of the wall post-pouring strip, flat iron embedded inside the concrete wall, and steel anchor nails spot-welded to the right side of the flat iron by scrap short steel bars. The installation centerline of the flat iron coincides with the centerline of the gap in the wall post-pouring strip. A steel plate is welded to the left side of the flat iron, the edge of the steel plate coincides with the centerline of the flat iron, and the steel plate is provided with a deformable bend.
[0007] In a preferred embodiment of this utility model, the width of the flat iron is 40mm and the thickness of the flat iron is 4mm.
[0008] In a preferred embodiment of this utility model, the thickness of the steel plate is 5mm.
[0009] In a preferred embodiment of this utility model, the diameter of the steel bar anchor nail is 10mm.
[0010] As a preferred embodiment of this utility model: a waterproof layer is provided on the left side of the concrete wall.
[0011] The beneficial effects of this utility model are:
[0012] This utility model discloses a construction mechanism for pre-sealing steel plates for post-cast strips in exterior walls. A steel plate is welded to the left side of a flat iron, and the steel plate is effectively welded and fixed to the flat iron embedded in the concrete wall. This fully utilizes the high strength of the steel plate, which can safely withstand the lateral pressure during concrete pouring. The installation is firm and reliable. Because the steel plate has a deformation bend, it can also adapt to the deformation requirements of the post-cast strip before it is poured after installation and fixing, preventing leakage, ensuring construction quality, avoiding rework and repair of the post-cast strip, reducing the construction period, and thus saving construction costs. Attached Figure Description
[0013] Figure 1 This is a structural schematic diagram of a construction mechanism for pre-sealing steel plates for post-pouring strips in exterior walls, according to this utility model.
[0014] In the diagram: 1-Waterproof layer; 2-Flat iron; 3-Steel plate; 4-Deformation bend; 5-Reinforcing bar anchor nail; 6-Post-cast strip of wall; 7-Concrete wall. Detailed Implementation
[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0016] like Figure 1 As shown, a construction mechanism for pre-sealing steel plates in the post-cast strip of an exterior wall includes a post-cast strip 6, concrete walls 7 set on both sides of the post-cast strip 6, flat iron 2 pre-embedded inside the concrete wall 7, and steel anchor nails 5 spot-welded to the right side of the flat iron 2 by scrap short steel bars. The installation centerline of the flat iron 2 coincides with the centerline of the gap in the post-cast strip 6. A steel plate 3 is welded to the left side of the flat iron 2, the edge of the steel plate 3 coincides with the centerline of the flat iron 2, and the steel plate 3 is provided with a deformable bend 4.
[0017] The width of flat iron 2 is 40mm and the thickness of flat iron 2 is 4mm; the thickness of steel plate 3 is 5mm; the diameter of steel bar anchor nail 5 is 10mm; a waterproof layer is provided on the left side of concrete wall 7.
[0018] During operation, firstly, steel plates 3 are spliced to the required height and width according to the drawings. Sufficient deformation bends 4 are machined in the middle of the vertical direction of steel plates 3 for compensation. After the reinforcement of the underground exterior wall post-pouring strip is tied, before the formwork is installed, flat iron 2 is spot-welded to the reinforcement anchor nails 5 with scrap short steel bars. The installation centerline of flat iron 2 coincides with the centerline of the gap of the wall post-pouring strip 6. During installation, a plumb line or laser line projector is needed to ensure that flat iron 2 is installed vertically. Flat irons on both sides of the wall post-pouring strip 6 are fixed in this way. After the concrete on both sides of the post-pouring strip is poured and the formwork is removed, the flat iron 2 is... Clean the laitance and debris from the surface and the post-cast strip 6 of the wall. Then, transfer the prefabricated steel plate 3 to the installation location. After verifying the dimensions, begin installation. Place the steel plate 3 at the post-cast strip 6 of the wall and take temporary support measures. Adjust the edge of the steel plate 3 to coincide with the center line of the flat iron 2, and then begin welding. When welding, pay attention to symmetrical welding on both sides. If necessary, adopt a segmented skip welding method to reduce welding deformation. The welds on both sides should be fully welded. After the steel plate 3 is welded, check whether the welding quality is qualified, and the weld should be repainted with anti-rust paint to complete the installation of the steel plate 3.
[0019] In summary, this utility model provides a pre-sealing steel plate construction mechanism for external wall post-pouring strips. The steel plate is effectively welded and fixed to the flat iron embedded in the concrete wall, making full use of the high strength of the steel plate. It can safely withstand the lateral pressure during concrete pouring, and the installation is firm and reliable. Because the steel plate has a deformation bend, it can also adapt to the deformation requirements of the post-pouring strip before it is poured after installation and fixing, preventing leakage, ensuring construction quality, avoiding rework and repair of the post-pouring strip, reducing the construction cycle, and having good economic benefits. It can be used as an external formwork for basement retaining walls and for supplementary pouring of post-pouring strips, and is environmentally friendly and material-saving.
[0020] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, and for those of ordinary skill in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details.
Claims
1. A construction mechanism for pre-sealing steel plates in post-cast strips of exterior walls, characterized in that: The wall includes a post-cast strip (6), a concrete wall (7) is set on both sides of the post-cast strip (6), a flat iron (2) is pre-embedded inside the concrete wall (7), and a steel anchor nail (5) is spot-welded to the right side of the flat iron (2) by a scrap short steel bar. The installation centerline of the flat iron (2) coincides with the centerline of the gap of the post-cast strip (6). A steel plate (3) is welded to the left side of the flat iron (2), and the edge of the steel plate (3) coincides with the centerline of the flat iron (2). The steel plate (3) is provided with a deformable bend (4).
2. The construction mechanism for pre-sealing steel plates for post-cast strips in exterior walls according to claim 1, characterized in that: The width of the flat iron (2) is 40 mm and the thickness of the flat iron (2) is 4 mm.
3. The construction mechanism for pre-sealing steel plates for post-cast strips in exterior walls according to claim 1, characterized in that: The thickness of the steel plate (3) is 5 mm.
4. The construction mechanism for pre-sealing steel plates for post-cast strips in exterior walls according to claim 1, characterized in that: The diameter of the steel bar anchor nail (5) is 10 mm.
5. The construction mechanism for pre-sealing steel plates for post-cast strips in exterior walls according to any one of claims 1 to 4, characterized in that: A waterproof layer (1) is provided on the left side of the concrete wall (7).