Steel pipe pile head structure suitable for heavy load

Abstract

The embodiment of the utility model relates to the technical field of steel pipe pile construction, in particular to a steel pipe pile head structure suitable for heavy loads, which is used for bearing the heavy loads and comprises an unloading block, a pile cap and a steel pipe pile, the pile cap comprises a column cap steel plate, a stiffening steel plate and an outer supporting plate, and the heavy loads are transmitted to the column cap steel plate through the unloading block. A plurality of stiffening steel plates are welded to the lower end of the column cap steel plate, a plurality of pile head notches are formed in the steel pipe pile, the stiffening steel plates are welded to the steel pipe pile through the pile head notches, and a plurality of outer supporting plates are evenly distributed on the outer wall of the steel pipe pile. According to the column head structure, the defect that a traditional steel pipe pile head deforms due to large stress in the heavy load bearing process is effectively overcome, the #-shaped stiffening plates are used, stress diffusion is facilitated, downward deformation of the steel plates is avoided, and the safety performance of the steel pipe column is guaranteed.

Description

Technical Field

[0001] The utility model embodiment relates to the technical field of steel pipe pile construction, and in particular to a pile head structure suitable for heavy-load steel pipe piles. Background Art

[0002] At present, in the current stage of steel pipe pile construction, steel pipe piles are used as temporary support columns, which are dismantled later to ensure longitudinal stability during construction. A steel plate is placed on the traditional steel pipe pile, and the unloading block is connected to the circular steel pipe column below to maintain the position of the unloading block unchanged. The two ends of the steel unloading block will be supported on the two ends of the spiral tube, and the steel plate will be less deformed under stress. However, for some heavy-load unloading block structures, the contact area between the bottom and the steel plate is small. Under the action of force, the steel plate will be concave. In order to facilitate stress diffusion and avoid downward deformation of the steel plate, a pile head structure suitable for heavy-load steel pipe piles is proposed. Utility Model Content

[0003] The main purpose of the utility model is to provide a pile head structure suitable for heavy-load steel pipe piles to avoid large downward deformation of the steel plate under heavy loads, thereby ensuring the bearing capacity of the on-site steel pipe piles, increasing the safety and reusability of the on-site steel pipe columns, and greatly increasing the safety of on-site construction.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a pile head structure suitable for heavy-load steel pipe piles is provided, which is used to bear heavy loads, including a unloading block, a pile cap, and a steel pipe pile. The pile cap includes a column cap steel plate, a stiffening steel plate, and an outer support plate. The heavy load is transferred to the column cap steel plate through the unloading block. A plurality of stiffening steel plates are welded to the lower end of the column cap steel plate. A plurality of pile head slots are provided on the steel pipe pile. A plurality of stiffening steel plates are welded to the steel pipe pile through the plurality of pile head slots. A plurality of outer support plates are evenly distributed on the outer wall of the steel pipe pile.

[0005] Furthermore, the plurality of stiffening steel plates are welded together to form a tic-tac-toe structure.

[0006] Furthermore, four outer support plates are provided.

[0007] Furthermore, the upper end of the outer support plate is welded to the column cap steel plate.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the column head structure effectively solves the defect that the traditional steel pipe pile head is deformed due to large stress during the process of bearing heavy loads. The utility model uses a cross-shaped stiffening plate to facilitate stress diffusion, avoid downward deformation of the steel plate, and ensure the safety performance of the steel pipe pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The front view of the pile head structure of the steel pipe pile suitable for heavy load according to the utility model is shown;

[0010] Figure 2 Shows Figure 1 The top view of the heavy-load steel pipe pile head structure;

[0011] Figure 3 Shows Figure 1 The partial structural diagram of the pile head structure applicable to heavy-load steel pipe piles.

[0012] Among them, the above-mentioned drawings include the following figure marks: pile cap 1, steel pipe pile 2, column cap steel plate 3, stiffening steel plate 4, outer support plate 5, pile head notch 6, unloading block 7. DETAILED DESCRIPTION

[0013] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0014] like Figures 1 to 3 As shown, the embodiment of the utility model provides a pile head structure suitable for heavy-load steel pipe piles, which is used to bear heavy loads, including a drop block 7, a pile cap 1, and a steel pipe pile 2.

[0015] The pile cap 1 includes a column cap steel plate 3, a stiffening steel plate 4, and an outer support plate 5. The heavy load is transferred to the column cap steel plate 3 through a drop block 7. A plurality of stiffening steel plates 4 are welded to the lower end of the column cap steel plate 3.

[0016] A plurality of reinforcing steel plates 4 are welded in a combination to form a tic-tac-toe structure. The top of the steel pipe pile 2 is grooved corresponding to the reinforcing steel plates 4 in a tic-tac-toe structure. The steel pipe pile 2 is provided with a plurality of pile head notches 6, and a plurality of reinforcing steel plates 4 are welded to the steel pipe pile 2 through the plurality of pile head notches 6. By using the reinforcing steel plates 4 in a combination to form a tic-tac-toe structure, stress diffusion is facilitated, downward deformation of the column cap steel plate 3 is avoided, and the safety performance of the steel pipe pile 2 is guaranteed.

[0017] The outer wall of the steel pipe pile 2 is evenly provided with a plurality of outer support plates 5. There are four outer support plates 5. The four outer support plates 5 are placed at the four corners of the pile cap steel plate 3 and are welded to the outer wall of the steel pipe pile 2, and the upper end of the outer support plate 5 is welded to the column cap steel plate 3.

[0018] Steel pipe piles 2 are often used as foundation support structures due to their high strength and good stability. As temporary support columns, steel pipe piles 2 play a temporary support role and are later removed to ensure longitudinal stability during construction. Steel pipe piles 2 play an indispensable role in bridge construction with their high strength, high rigidity and excellent bearing performance, ensuring the quality and safety of bridge construction.

[0019] The unloading block 7, as an important loading and unloading equipment, functions like a "smart joint" in the bridge construction process. In bridge construction or other large-scale projects, when the temporary supporting structure steel pipe pile 2 completes its mission and needs to be unloaded smoothly and safely, the unloading block 7 plays a key role. By adjusting the unloading block 7, the support force of the steel pipe pile 2 on the building can be gradually reduced until it is completely out of contact, thereby achieving smooth and safe unloading of the steel pipe pile 2. This process ensures the safety of the engineering structure and improves construction efficiency.

[0020] The installation of heavy loads during bridge construction requires precise calculation and strict control when used in conjunction with the steel pipe piles 2 and the unloading blocks 7. The steel pipe piles 2 provide a stable support foundation, while the unloading blocks 7 are used to achieve smooth and safe unloading of the steel pipe piles 2.

[0021] When used in conjunction with each other, the following steps are usually followed:

[0022] 1) According to the engineering needs and design requirements, install the steel pipe piles 2 and the unloading blocks 7 at appropriate positions, and ensure their verticality and stability.

[0023] 2) Use lifting equipment to move the heavy load to the predetermined location and support it on the unloading block 7 on the steel pipe pile 2.

[0024] 3) When the temporary supporting structure steel pipe pile 2 needs to be unloaded, the unloading block 7 is gradually adjusted in accordance with the predetermined sequence and steps to reduce the supporting force and realize the smooth and safe unloading of the steel pipe pile 2. This process ensures the safety of the engineering structure and improves the construction efficiency.

[0025] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pile head structure suitable for heavy load steel pipe piles, used to bear heavy loads, including a drop block, characterized in that: It also includes a pile cap and a steel pipe pile. The pile cap includes a column cap steel plate, a stiffening steel plate and an outer support plate. The heavy load is transferred to the column cap steel plate through a unloading block. A plurality of stiffening steel plates are welded to the lower end of the column cap steel plate. A plurality of pile head grooves are provided on the steel pipe pile. A plurality of stiffening steel plates are welded to the steel pipe pile through the plurality of pile head grooves. A plurality of outer support plates are evenly distributed on the outer wall of the steel pipe pile.

2. The heavy-load steel pipe pile head structure according to claim 1, characterized in that: The plurality of stiffening steel plates are welded together to form a tic-tac-toe structure.

3. The heavy-load steel pipe pile head structure according to claim 2, characterized in that: There are four outer supporting plates.

4. The heavy-load steel pipe pile head structure according to claim 3, characterized in that: The upper end of the outer support plate is welded to the column cap steel plate.

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