A long-distance hole opening formwork erecting frame erects a pole formwork structure

Abstract

The utility model provides a kind of across long distance hole mouth formwork support frame vertical pole formwork structure, including mat that is symmetrically arranged in long distance hole mouth both sides, long distance hole mouth both sides formwork support frame vertical pole lower portion are all set in steel sleeve, steel sleeve is supported on mat, steel cross brace is welded between the steel sleeve welded outside long distance hole mouth both sides formwork support frame vertical pole, steel diagonal brace is welded between the steel sleeve of long distance hole mouth both sides formwork support frame vertical pole lower portion in the center of steel cross brace lower surface, steel cross brace upper surface in the intersection position of steel diagonal brace is welded with formwork support frame vertical pole, and this formwork support frame vertical pole is located above long distance hole mouth.The utility model reconstructs the formwork structure of formwork support frame vertical pole at long distance hole mouth, and it is convenient, safe and reliable to construct, and the formwork structure of the utility model is whole and can be recycled.

Description

Technical Field

[0001] This utility model belongs to the field of formwork support pole processing technology, and in particular relates to a formwork support pole structure for long-distance openings. Background Technology

[0002] Currently, most formwork supports use reliable disc-lock type formwork supports. However, due to the modular limitations of these supports, it's impossible to avoid placing the uprights above openings when arranging them. Traditional methods involve additionally placing angle steel or channel steel structures above the opening, then mounting the uprights on top of these structures – a time-consuming, labor-intensive, and unsafe method that prevents reuse. Some even place the uprights directly on the floor slab below the opening, which is non-compliant and poses safety hazards. Therefore, this invention specifically designs a support structure for uprights in formwork supports spanning long openings. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a formwork support structure for long-distance tunnel openings, which solves the problems of time-consuming and labor-intensive, low safety, and inability to be reused in traditional formwork support methods for long-distance tunnel openings.

[0004] This utility model achieves the above-mentioned technical objectives through the following technical means.

[0005] A formwork support structure for a long-distance tunnel opening includes formwork support poles on both sides of the tunnel opening, with the lower parts of the support poles fitted into steel sleeves. The steel sleeves are supported on a base plate. Steel sleeves are also welded to the outer perimeter of the formwork support poles on both sides of the tunnel opening. Steel cross braces are welded between the steel sleeves on the formwork support poles on both sides of the tunnel opening. Steel diagonal braces are welded between the center of the lower surface of the steel cross braces and the lower steel sleeves of the formwork support poles on both sides of the tunnel opening. Formwork support poles are welded to the upper surface of the steel cross braces at the intersection of the steel diagonal braces. These formwork support poles are located above the long-distance tunnel opening.

[0006] Furthermore, the steel sleeve has an inner diameter of 50 mm and a wall thickness of 2 mm.

[0007] Furthermore, both the steel cross brace and the steel diagonal brace are made of square steel, with a side length of 50mm and a wall thickness of 2mm.

[0008] Furthermore, the pad is a wooden pad with a thickness of 15mm.

[0009] This utility model has the following beneficial effects:

[0010] This utility model improves the formwork support structure of the uprights at long-distance openings. Without changing the original formwork support system, the construction is convenient, quick, safe and reliable. Moreover, the formwork support structure of this utility model can be reused as a whole. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the formwork support structure for a long-span tunnel opening as described in this utility model.

[0012] In the diagram: 1-base plate; 2-steel sleeve; 3-formwork support upright; 4-steel horizontal brace; 5-steel diagonal brace; 6-long-distance opening. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0014] like Figure 1 As shown, the formwork support structure for a long-distance opening according to this utility model includes a pad plate 1, a steel sleeve 2, a formwork support upright 3, a steel cross brace 4, and a steel diagonal brace 5.

[0015] like Figure 1 As shown, the pads 1 are symmetrically arranged on both sides of the long-distance opening 6, and the specific number is reasonably selected according to the size of the long-distance opening 6 and the number of formwork support poles 3. The lower part of the formwork support poles 3 on both sides of the long-distance opening 6 is sleeved in the steel sleeve 2, and the steel sleeve 2 is supported on the pads 1. The outer periphery of the formwork support poles 3 on both sides of the long-distance opening 6 is also welded with steel sleeve 2, and steel cross braces 4 are welded between the steel sleeves 2 on the formwork support poles 3 on both sides of the long-distance opening 6. Steel diagonal braces 5 are welded between the center of the lower surface of the steel cross brace 4 and the lower steel sleeve 2 of the formwork support poles 3 on both sides of the long-distance opening 6, forming a triangular structure, which is more stable. The upper surface of the steel cross brace 4 at the intersection of the steel diagonal braces 5 is welded with the formwork support pole 3, which is located above the long-distance opening 6.

[0016] In this utility model, preferably, the inner diameter of the steel sleeve 2 is 50mm and the wall thickness is 2mm; the steel cross brace 4 and the steel diagonal brace 5 are both made of square steel, the side length of the square steel section is 50mm and the wall thickness is 2mm; the pad 1 is a wooden pad 1 with a thickness of 15mm.

[0017] The construction method of the formwork support structure for long-span openings described in this utility model is as follows:

[0018] (1) Positioning and layout: Arrange the formwork support poles according to the formwork construction plan, mark the position when they reach the opening, and set a 15mm thick wooden pad at the bottom;

[0019] (2) Install the fixed steel support frame and fix the uprights by inserting them into the fixed steel sleeve;

[0020] (3) Install the middle uprights and crossbars of the top cross bracing section;

[0021] (4) Install standard steel supports for other parts according to the spacing of the uprights in the construction plan;

[0022] (5) Inspect the formwork;

[0023] (6) After acceptance, pour concrete for the floor slab.

[0024] The embodiments described above are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essential content of the present invention shall fall within the protection scope of the present invention.

Claims

1. A formwork support structure for a long-distance tunnel entrance, characterized in that, The lower part of the formwork support poles (3) on both sides of the long-distance opening (6) is fitted in the steel sleeve (2), the steel sleeve (2) is supported on the pad (1), the outer periphery of the formwork support poles (3) on both sides of the long-distance opening (6) is also welded with steel sleeve (2), and steel cross braces (4) are welded between the steel sleeves (2) on the formwork support poles (3) on both sides of the long-distance opening (6); steel diagonal braces (5) are welded between the center of the lower surface of the steel cross brace (4) and the lower part of the steel sleeve (2) of the formwork support poles (3) on both sides of the long-distance opening (6), and the upper surface of the steel cross brace (4) at the intersection of the steel diagonal braces (5) is welded with the formwork support pole (3), which is located above the long-distance opening (6).

2. The formwork support structure for long-distance tunnel openings according to claim 1, characterized in that, The steel sleeve (2) has an inner diameter of 50 mm and a wall thickness of 2 mm.

3. The formwork support structure for long-distance tunnel openings according to claim 1, characterized in that, The steel cross brace (4) and the steel diagonal brace (5) are both made of square steel with a side length of 50mm and a wall thickness of 2mm.

4. The formwork support structure for long-distance tunnel openings according to claim 1, characterized in that, The pad (1) is a wooden pad (1) with a thickness of 15mm.

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