Steel formwork of steel reinforced concrete pile
By adopting steel formwork design in the construction of steel-concrete piles, and using L-shaped steel plates and bolts to connect with the soil, the problem of unstable fixing of wooden formwork was solved, enabling rapid pouring and high-precision positioning of steel-concrete piles, and improving construction efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-24
AI Technical Summary
Existing wooden formwork is not effective in fixing steel-concrete piles, resulting in low pouring efficiency and difficulty in ensuring quality. In particular, it is prone to displacement under hard geological conditions, which affects construction efficiency and quality.
The steel formwork design includes L-shaped steel plates on both sides of the steel body, which are fixed to the soil by connecting bolts and anchor bolts to ensure the stability of the steel. Existing materials such as C-shaped or H-shaped steel are used to improve the fixing effect.
It enables rapid casting and high-precision positioning of steel-concrete piles, improving construction efficiency and quality. The formwork is reusable and easy to operate.
Smart Images

Figure CN224031655U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a steel formwork of a steel reinforced concrete pile and belongs to the technical field of the construction of a concrete pile. BACKGROUND
[0002] In a photovoltaic project, thin-walled C-shaped steel and H-shaped steel are widely used due to their structural advantages and economy. Since the wall thickness of the steel is relatively thin, direct hammering may easily cause local buckling of the steel and difficulty in pile sinking when hard geological conditions are encountered, that is, the steel cannot be hammered to the designed depth. In this case, the pile needs to be pulled out mechanically, and then a hole is drilled and concrete is poured. When the geological conditions of the site have obvious boundaries, for the hard soil layer area, a pre-drilled hole can be used to pour concrete. The above two cases involve the selection of a formwork during concrete pouring. At present, most photovoltaic projects use a cross-shaped wooden formwork, which is clamped around the steel by a clamp and fixed in the soil by nails. This method is relatively primitive, and the wooden formwork has poor rigidity. Since the soil is a discrete particle, the fixing effect of the nails is limited due to their small area. The wooden formwork is prone to deviation during pouring, and multiple people need to repeatedly correct the deviation, which takes a long time and has a low reuse efficiency, posing a great risk to the efficiency and quality of the project. SUMMARY
[0003] The utility model aims at overcoming the problems in the background art and provides a steel formwork of a steel reinforced concrete pile, which has high pile positioning accuracy, allows rapid concrete pouring, and ensures pouring quality.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions.
[0005] A steel formwork of a steel reinforced concrete pile, comprising a steel body, an L-shaped steel plate arranged on each side of the steel body, the L-shaped steel plate being composed of a vertical steel plate and a horizontal steel plate, the two vertical steel plates being fixed to the steel body by a connecting screw rod, and an anchor bolt being arranged on the horizontal steel plate and connected to the soil.
[0006] Further, the steel body is a C-shaped steel or an H-shaped steel.
[0007] Further, a screw hole one is arranged on the vertical steel plate, the connecting screw rod passes through the screw hole one and is fixed by a connecting nut.
[0008] Further, a screw hole two is arranged on the horizontal steel plate, the anchor bolt passes through the screw hole two and is fixed by an anchor nut.
[0009] The steel formwork of the steel reinforced concrete pile has the following beneficial effects.
[0010] 1. The type steel is fixed in the soil body by connecting screw rod and anchoring bolt, concrete can be poured quickly, the precision and quality of construction are ensured, and the efficiency is improved;
[0011] 2. The type steel body selects C type steel or H type steel, which is existing material and can be purchased in the market, the whole concrete pile steel formwork is convenient to manufacture, simple to operate and reusable. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a steel formwork structure schematic view of a type steel concrete pile of the utility model;
[0013] Figure 2 is a top view schematic view of the type steel body being C type steel of the utility model;
[0014] Figure 3 is a top view schematic view of the type steel body being H type steel of the utility model;
[0015] Figure 4 is a schematic view of the steel formwork pouring concrete, and the anchoring bolt is connected with the soil body;
[0016] Figure 5 is a top view schematic view of the steel formwork pouring concrete. DETAILED DESCRIPTION
[0017] The utility model will be explained in detail in combination with specific implementation cases, and the following implementation cases will help the person skilled in the art to further understand the utility model, but do not limit the utility model in any form.
[0018] As shown in Figure 1 — Figure 5 The utility model relates to a steel formwork of type steel concrete pile, including type steel body 1, one piece of L type steel plate 2 is arranged at both sides of type steel body 1, the L type steel plate 2 is welded and is formed by vertical steel plate 21 and horizontal steel plate 22, two vertical steel plates 21 are fixed with type steel body 1 by the tension of connecting screw rod 3, anchoring bolt 5 is arranged on horizontal steel plate 22, and anchoring bolt 5 is connected with soil body 6.
[0019] The scheme welds horizontal steel plate 21 and vertical steel plate 22 to form L type steel plate 2, connects type steel body 1 and L type steel plate 2 together by connecting screw rod 3, and then connects L type steel plate 2 and soil body 6 together by anchoring bolt 5, so that the type steel is fixed in the soil body, and concrete can be poured quickly, and the pile positioning precision and pouring quality are guaranteed.
[0020] Further, the type steel body 1 can be C type steel or H type steel, and the C type steel or H type steel is existing material and can be purchased in the market, has good strength and can be reused.
[0021] Further, the vertical steel plate 21 is provided with a screw hole one 7, the connecting screw rod 3 passes through the screw hole one 7 and is fixed by the connecting nut 8, the horizontal steel plate 22 is provided with a screw hole two 9, the anchoring bolt 5 passes through the screw hole two 9 and is fixed by the anchoring nut 10, the operation is simple, and the connection is convenient, firm and reliable.
[0022] The steel formwork of the steel reinforced concrete pile has the following manufacturing steps:
[0023] Step one:
[0024] 1. According to the section of the steel body 1, the vertical steel plate 21 is first manufactured, and the screw hole one 7 for the connecting screw rod 3 is reserved;
[0025] 2. According to the section of the steel body 1, the horizontal steel plate 22 is manufactured, and the screw hole two 9 for the anchoring bolt 5 is reserved, the horizontal steel plate 21 and the vertical steel plate 22 are welded to form the L-shaped steel plate 2;
[0026] Step two:
[0027] The steel body 1 is placed in the pre-drilled soil body 6, and the two L-shaped steel plates 2 are placed on the flanges on both sides of the steel body 1;
[0028] The connecting screw rod 3 is placed in the screw hole one 7 reserved in the vertical steel plate 21, the ground height of the steel body 1 is adjusted, the connecting nut 8 is quickly tightened, the anchoring bolt 5 is anchored into the soil body 6 through the screw hole two 9 reserved in the horizontal steel plate 22, and the anchoring nut 10 is tightened;
[0029] After the steel formwork is installed, the concrete is poured to the ground elevation.
[0030] Step three:
[0031] After the concrete is cured to reach the strength, the anchoring nut 10 and the anchoring bolt 5 are removed from the soil body 6, the connecting nut 8 and the connecting screw rod 3 are removed from the horizontal steel plate 21, and finally the L-shaped steel plate 2 is removed.
[0032] In the description of the present patent, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present patent and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present patent.
[0033] It is to be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the application. The word "comprising" does not exclude the presence of elements or steps other than those listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. It is further noted that characteristics relating to the different embodiments can be combined, and not just those within respective sections of the description. These and other changes can be made to the application in light of the above-mentioned description. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all the readily-equivalent alternatives and equivalents.
Claims
1. A steel formwork for a steel-concrete composite pile, characterized in that... The steel body (1) includes an L-shaped steel plate (2) on each side of the steel body (1). The L-shaped steel plate (2) is welded from a vertical steel plate (21) and a horizontal steel plate (22). The two vertical steel plates (21) are tightened and fixed to the steel body (1) by a connecting screw (3). Anchor bolts (5) are installed on the horizontal steel plate (22) and are connected to the soil (6).
2. The steel formwork for a steel-concrete composite pile as described in claim 1, characterized in that... The steel body (1) is a C-shaped steel or an H-shaped steel.
3. The steel formwork for a steel-concrete composite pile as described in claim 1, characterized in that... The vertical steel plate (21) is provided with a screw hole (7), and the connecting screw (3) passes through the screw hole (7) and is fixed by the connecting nut (8).
4. The steel formwork for a steel-concrete composite pile as described in claim 1, characterized in that... The transverse steel plate (22) is provided with screw holes two (9), and the anchor bolt (5) passes through the screw holes two (9) and is fixed by the anchor nut (10).