A quick-release formwork for large-span prestressed concrete beams

Abstract

This utility model relates to a quick-release formwork support for large-span prestressed concrete beams, comprising: multiple bases arranged side-by-side on a hardened ground; multiple vertically distributed columns on each base; a top support on each column; a connecting plate fixed vertically at four equidistant angles on the side of each column; multiple bolt holes vertically formed on each connecting plate; two horizontal braces and diagonal braces, each bolted to the connecting plates on the sides of two adjacent columns on the same base; and two horizontal braces and diagonal braces, each bolted to the connecting plates on the sides of two adjacent columns on the same row between two adjacent bases. The advantages are: the bolted connection facilitates rapid assembly and disassembly, resulting in high efficiency; the horizontal and diagonal braces connect the columns into a whole, ensuring stability.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically to a quick-release formwork support for large-span prestressed concrete beams. Background Technology

[0002] In recent years, with the enrichment of people's lives, more and more sports venues have been built to meet the increasingly rich cultural life of the people. Large-span prestressed concrete beams will be used in the structure of sports venues. This structure can meet the large space required by the venue. The large span plays a crucial role in creating a unique training and competition atmosphere for the venue. However, at present, there is a lack of large-span prestressed concrete beam formwork that is easy to assemble and disassemble and has good stability. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a quick-release formwork support for large-span prestressed concrete beams, so as to overcome the shortcomings of the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A quick-release formwork for a large-span prestressed concrete beam includes: multiple bases arranged in parallel on a hardened ground, multiple vertically distributed columns arranged on each base, a top support arranged on each column, a connecting plate fixed vertically at four equal angles on the side of each column, multiple bolt holes opened vertically on each connecting plate, two horizontal braces and diagonal braces arranged between two adjacent columns on the same base, with their ends fixedly connected to the connecting plates on the sides of the two columns by bolts, and two horizontal braces and diagonal braces arranged between two columns in the same row between two adjacent bases, with their ends fixedly connected to the connecting plates on the sides of the two columns by bolts.

[0005] Based on the above technical solution, the present invention can be further improved as follows.

[0006] Furthermore, the base includes: a first base plate, on which a side plate is provided on each side along its length direction, and each side plate has an inwardly extending wing plate at its upper end; the lower end of the column enters the area below the wing plate through the gap between the two wing plates on the base; and a horizontally distributed second base plate is provided at the lower end of the column; the width of the second base plate is less than or equal to the distance between the two side plates, and the width of the second base plate is greater than the distance between the two wing plates.

[0007] Furthermore, the columns are square columns, with a connecting plate fixed vertically along the top of each of the four sides of the square column.

[0008] Furthermore, the top support adopts a height-adjustable type.

[0009] Furthermore, the top support includes: a third base plate, on which a vertically distributed steel pipe is fixed, and a nut is coaxially provided at the upper end of the steel pipe. A vertically distributed screw is threaded into the nut, and a U-shaped support plate is fixed at the upper end of the screw.

[0010] Furthermore, the columns are made of steel, the connecting plates are made of steel, the second base plate is made of steel, and the base is made of steel.

[0011] The beneficial effects of this utility model are:

[0012] 1) Bolted connections facilitate quick assembly and disassembly, resulting in high efficiency;

[0013] 2) Horizontal and diagonal braces connect the columns into a whole, ensuring the stability of the formwork support;

[0014] 3) It is reusable, has a high utilization rate, low loss, and low overall cost;

[0015] 4) The column and base are movable, making it easy to move the column on the base, with a large adjustable range;

[0016] 5) The height-adjustable top support allows for minor adjustments to the height of the upper structure;

[0017] 6) The columns are made of square steel, which has high strength, strong stability, and high safety performance;

[0018] 7) It is convenient for large-scale use in linear engineering projects such as municipal engineering. Attached Figure Description

[0019] Figure 1 This is a partial structural front view of the quick-release formwork support for the large-span prestressed concrete beam described in this utility model;

[0020] Figure 2 This is a partial top view of the quick-release formwork support for the large-span prestressed concrete beam described in this utility model;

[0021] Figure 3 This is a partial structural diagram of the quick-release formwork support for the large-span prestressed concrete beam described in this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Base, 110. First base plate, 120. Side plate, 130. Wing plate, 2. Column, 3. Top support, 4. Horizontal brace, 5. Diagonal brace, 6. Connecting plate, 611. Bolt hole, 7. Second base plate. Detailed Implementation

[0024] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0025] Example 1

[0026] like Figure 1 , Figure 2 , Figure 3 As shown, a quick-release formwork for a large-span prestressed concrete beam includes: multiple bases 1, which are arranged in parallel side by side on a hardened ground; multiple vertically distributed columns 2 are arranged on each base 1, and the columns 2 on each base 1 can be fixedly connected to the base 1 or not. If fixedly connected, they can be bolted; if not fixedly connected, they can be sliding.

[0027] Each column 2 is provided with a top support 3. A connecting plate 6 is fixed vertically at four equal angles on the side of the column 2. That is, four connecting plates 6 are fixed vertically on the side of each column 2, and the four connecting plates 6 fixed on the side of each column 2 are distributed at equal angles. Multiple bolt holes 611 are opened vertically on each connecting plate 6.

[0028] Two horizontal braces 4 and diagonal braces 5 are arranged between two adjacent columns 2 on the same base 1, with their ends fixedly connected to the connecting plates 6 on the sides of the two columns 2 by bolts. That is, two horizontal braces 4 and diagonal braces 5 are arranged between two adjacent columns 2 on the same base 1, and the two ends of the horizontal braces 4 between two adjacent columns 2 on the same base 1 are fixedly connected to the connecting plates 6 on the sides of the two columns 2 by bolts. The two ends of the diagonal braces 5 between two adjacent columns 2 on the same base 1 are fixedly connected to the connecting plates 6 on the sides of the two columns 2 by bolts.

[0029] Between two adjacent bases 1 and two columns 2 in the same row, a horizontal brace 4 and a diagonal brace 5 are arranged and fixedly connected to the connecting plates 6 on the sides of the two columns 2 by bolts. That is, between one column 2 on one of the two adjacent bases 1 and another column 2 on the other base 1 that is in the same row as the column 2 on the aforementioned base 1, a horizontal brace 4 and a diagonal brace 5 are arranged. The two ends of the horizontal brace 4 between the column 2 on one of the two adjacent bases 1 and the column 2 on the other base 1 that is in the same row as the column 2 on the aforementioned base 1 are fixedly connected to the connecting plates 6 on the sides of the two columns 2 by bolts. The two ends of the diagonal brace 5 between the column 2 on one of the two adjacent bases 1 and the column 2 on the other base 1 that is in the same row as the column 2 on the aforementioned base 1 are fixedly connected to the connecting plates 6 on the sides of the two columns 2 by bolts.

[0030] The diagonal brace 5 and the connecting plate 6, as well as the horizontal brace 4 and the connecting plate 6, are all bolted together to meet the connection requirements of different spacing and inclination, ensuring the stability of the entire formwork support.

[0031] Example 2

[0032] like Figure 3 As shown, this embodiment is a further improvement on embodiment 1, as detailed below:

[0033] The base 1 includes a first base plate 110, on which a side plate 120 is provided on each side along its length. Each side plate 120 has an inwardly extending wing plate 130 at its upper end. The lower end of the column 2 enters the area below the wing plate 130 through the gap between the two wing plates 130 on the base 1. The lower end of the column 2 is provided with a horizontally distributed second base plate 7, that is, the second base plate 7 is located below the two wing plates 130. The width of the second base plate 7 is less than or equal to the distance between the two side plates 120, and the width of the second base plate 7 is greater than the distance between the two wing plates 130. That is, the column 2 can move along the length of the base 1 without detaching from the base 1 vertically, which can achieve quick assembly and disassembly. The base 1 is long and has strong integrity. The second base plate 7 can also increase the contact area between the column 2 and the base 1.

[0034] Example 3

[0035] like Figure 2 As shown, this embodiment is a further improvement on embodiment 1 or 2, as detailed below:

[0036] The column 2 is a square column, and a connecting plate 6 is fixed vertically on each of the four sides of the square column, so that the four connecting plates 6 can be in four different positions.

[0037] Example 4

[0038] like Figure 3 As shown, this embodiment is a further improvement on embodiment 1, 2, or 3, as detailed below:

[0039] The top support 3 is a height-adjustable top support, which allows for slight adjustments to the height of the upper structure.

[0040] Furthermore, the top support 3 includes a third base plate, on which a vertically distributed steel pipe is fixed. A nut is coaxially mounted at the upper end of the steel pipe, and a vertically distributed screw is threaded into the nut. By rotating the screw, the lower end of the screw can enter the steel pipe. A U-shaped support plate is fixed at the upper end of the screw. By rotating the screw, the height of the U-shaped support plate can be adjusted, thereby achieving the purpose of adjusting the overall height of the top support 3.

[0041] Example 5

[0042] like Figure 3 As shown, this embodiment is a further improvement on embodiment 1, 2, 3, or 4, as detailed below:

[0043] The column 2 is made of steel, the connecting plate 6 is made of steel, the second base plate 7 is made of steel, and the base 1 is made of steel.

[0044] The work process is as follows:

[0045] 1. Based on the location of the large-span prestressed beam, make measurement and layout lines on the hardened ground, and place base 1 at the layout line position, ensuring it is flat and secure;

[0046] 2. After the base 1 is installed, insert the column 2 into the base 1 from one end and position it in the desired location;

[0047] 3. After the uprights 2 are installed, install the horizontal brace 4 and the diagonal brace 5 to connect all the uprights 2 into a whole;

[0048] 4. Install the top support 3 at the top of column 2, and adjust the height according to the actual clearance at the bottom of the beam to ensure the reliability of the support;

[0049] 5. Inspect the overall erection and stability of the entire support system. If it passes the inspection, proceed to the next step.

[0050] 6. First, install the formwork, reinforcing bars and corrugated pipes, then pour the concrete. After the concrete reaches the required strength, lay and tension the steel strands until the design requirements are met, and then fix the anchorages.

[0051] 7. Dismantle the quick-release formwork for large-span prestressed concrete beams.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A quick-release formwork support for a large-span prestressed concrete beam, characterized in that, include: Multiple bases (1) are arranged in parallel on a hardened ground. Multiple vertical columns (2) are arranged on each base (1). Each column (2) is equipped with a top support (3). A connecting plate (6) is fixed vertically at four equal angles on the side of each column (2). Multiple bolt holes (611) are opened vertically on each connecting plate (6). Two horizontal braces (4) and diagonal braces (5) are arranged between two adjacent columns (2) on the same base (1) and their ends are fixedly connected to the connecting plates (6) on the side of the two columns (2) by bolts. Two horizontal braces (4) and diagonal braces (5) are arranged between two columns (2) on the same row between two adjacent bases (1) and their ends are fixedly connected to the connecting plates (6) on the side of the two columns (2) by bolts.

2. The quick-release formwork for a large-span prestressed concrete beam according to claim 1, characterized in that, The base (1) includes: a first base plate (110), on which a side plate (120) is provided on each side along its length direction, and each side plate (120) has an inwardly extending wing plate (130) at its upper end. The lower end of the column (2) enters the area below the wing plate (130) through the gap between the two wing plates (130) on the base (1). The lower end of the column (2) is provided with a horizontally distributed second base plate (7). The width of the second base plate (7) is less than or equal to the distance between the two side plates (120), and the width of the second base plate (7) is greater than the distance between the two wing plates (130).

3. The quick-release formwork for a large-span prestressed concrete beam according to claim 1, characterized in that, The column (2) is a square column, and a connecting plate (6) is fixed vertically on each of the four sides of the square column.

4. The quick-release formwork for a large-span prestressed concrete beam according to claim 1, characterized in that, The top support (3) is a height-adjustable top support.

5. A quick-release formwork support for a large-span prestressed concrete beam according to claim 4, characterized in that, The top support (3) includes: a third base plate, on which a steel pipe distributed vertically is fixed, and a nut is coaxially provided at the upper end of the steel pipe, and a screw rod distributed vertically is threadedly connected in the nut, and a U-shaped support plate is fixed at the upper end of the screw rod.

6. A quick-release formwork support for a large-span prestressed concrete beam according to claim 2, characterized in that, The column (2) is made of steel, the connecting plate (6) is made of steel, the second base plate (7) is made of steel, and the base (1) is made of steel.

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