A culvert wing wall formwork positioning device and positioning method thereof

Abstract

The present application belongs to cast-in-place concrete formwork installation technical field, specifically relates to a culvert wing wall formwork positioning device and positioning method thereof, the device includes support frame, three positioning rods which can be advanced and retreated relative to the support frame are installed on the support frame, and the end points of the three positioning rods constitute a formwork positioning surface; the method comprises the following steps: (1) determining the slope m of the wing wall formwork; (2) positioning the culvert wing wall formwork positioning device, and determining the distance A from the culvert wing wall formwork positioning device to the bottom edge of the wing wall formwork; (3) calculating the extension length B of the lower layer positioning rod relative to the support frame according to the slope m of the wing wall formwork, the height h1 of the lower layer positioning rod from the ground, B = h1 / m + A; (4) calculating the extension length C of the upper layer positioning rod relative to the support frame according to the slope m of the wing wall formwork, the height h2 of the upper layer positioning rod from the ground, C = h2 / m + A; the principle of three-point determination of a plane is adopted, and the overall structure is simple; by using the device, the construction quality and work efficiency can be improved.

Description

Technical Field

[0001] This invention belongs to the field of cast-in-place concrete formwork installation technology, specifically relating to a culvert wing wall formwork positioning device and its positioning method. Background Technology

[0002] Wing walls are retaining structures installed to ensure the stability of the roadbed slopes on both sides of culverts or gravity bridge abutments and to guide river flow. During culvert wing wall construction, the irregular shape of the wing walls makes formwork installation difficult, and adjusting the angle of the inclined formwork is challenging. Formwork installation often consumes a significant amount of manpower, affects the construction period, and can even impact subsequent roadbed filling, increasing construction costs. Summary of the Invention

[0003] This invention aims to solve the problems of difficult construction of culvert wing wall formwork, difficulty in adjusting the angle of inclined formwork, and low formwork installation efficiency.

[0004] The present invention provides the following technical solution: a culvert wing wall template positioning device, including a support frame, on which three positioning rods that can move forward and backward relative to the support frame are installed. The three positioning rods are arranged in two layers, and the endpoints of the three positioning rods constitute a template positioning surface.

[0005] Furthermore, the three positioning rods are perpendicular to the plumb line and parallel to each other.

[0006] Furthermore, the three positioning rods are perpendicular to the plumb line, and the positioning rods on the same layer are mounted on a turntable, with the two positioning rods on the same turntable being parallel to each other.

[0007] Furthermore, the positioning rod is a lead screw, which engages with the screw thread on the turntable.

[0008] Furthermore, the support frame includes two equal-sized triangular frames, which are connected by a column at the apex.

[0009] Furthermore, diagonal bracing rods are connected between the diagonal corners of the rectangular frame formed by the side bars of the triangular frame and the columns.

[0010] Furthermore, a support member is provided in the middle of the upper and lower triangular frames. The lower hollow shaft on the support member is connected to the upper hollow shaft at the center of the turntable. Bolts are inserted into the upper and lower hollow shafts to fasten the turntable to the support member.

[0011] A positioning method for a culvert wing wall formwork positioning device includes the following steps:

[0012] (1) Locate the bottom edge of the wing wall formwork and determine the slope m of the wing wall formwork;

[0013] (2) Position the culvert wing wall formwork positioning device so that the three positioning rods are parallel to the horizontal line and perpendicular to the bottom edge of the wing wall formwork, and determine the distance A from the culvert wing wall formwork positioning device to the bottom edge of the wing wall formwork;

[0014] (3) Calculate the extension length B of the lower positioning rod relative to the support frame based on the slope m of the wing wall formwork and the height h1 of the lower positioning rod from the ground. B = h1 / m + A;

[0015] (4) Calculate the extension length C of the upper positioning rod relative to the support frame based on the slope m of the wing wall formwork and the height h2 of the upper positioning rod from the ground. C = h2 / m + A.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The present invention provides a culvert wing wall formwork positioning device, which adopts the principle of three points determining the plane. It mainly consists of a support frame and three positioning rods that can move forward and backward relative to the support frame. The overall structure is simple. It can solve the problems of existing wing walls having irregular shapes, difficult formwork installation, low accuracy, and long time consumption. By using this device, construction quality and work efficiency can be improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the positioning method of the present invention.

[0020] In the diagram: 1-Support frame; 1.1-Triangular frame; 1.2-Diagonal brace; 1.3-Column; 2-Positioning rod; 3-Turntable; 4-Culvert wing wall formwork. Detailed Implementation

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] like Figure 1 As shown: A culvert wing wall formwork positioning device includes a support frame 1, on which three positioning rods 2 that can move forward and backward relative to the support frame 1 are installed. The three positioning rods 2 are arranged in two layers, and the endpoints of the three positioning rods 2 form a formwork positioning surface.

[0023] In one embodiment, the three positioning rods 2 are non-rotatable, perpendicular to the vertical line, and parallel to each other.

[0024] In another embodiment, the three positioning rods 2 are freely rotatable, rotating with the installation position of the wing wall formwork. The three positioning rods 2 are perpendicular to the plumb line, and the positioning rods 2 on the same layer are mounted on a turntable 3, with the two positioning rods 2 on the same turntable 3 being parallel to each other.

[0025] Specifically, the positioning rod 2 is a lead screw, and the positioning rod 2 is screwed into the screw hole on the turntable 3.

[0026] The support frame 1 includes two equal-sized triangular frames 1.1, which are connected by a column 1.3 at their apex. Diagonal braces 1.2 are connected between the diagonal of the rectangular frame formed by the side members of the triangular frames 1.1 and the column 1.3.

[0027] A support member is provided in the middle of the upper and lower triangular frames 1.1. The support member is a plate welded to the triangular frame 1.1. The lower hollow shaft on the support member is connected to the upper hollow shaft in the center of the turntable 3. Bolts are inserted into the upper and lower hollow shafts to fasten the turntable 3 to the support member. After the bolts are loosened, the turntable 3 can rotate freely. After the bolts are tightened, the angle of the turntable 3 is fixed.

[0028] The support frame 1 is made of 2m long and 40mm thick material. Four 40mm square steel bars, each 3m long. Two 40mm square steel bars form a stable triangular frame at the top and bottom. Three 2.3m long Φ48 heating pipes form the vertical support of the device, and three 3.5m long Φ48 heating pipes serve as diagonal braces in the system, making the device a stable structure.

[0029] A supporting steel plate is provided in the middle of the upper and lower triangular frames 1.1. The turntable 3 is made of circular steel plate. The center of the turntable 3 and the center of the supporting steel plate are connected by a rotating shaft, so that the upper and lower turntables 3 can rotate. Two M16 screw rods that can move along the diameter of the circular steel plate are placed on the upper turntable 3, and one M16 screw rod that can move along the diameter of the circular steel plate is placed on the lower turntable 3. By adjusting the position of the three screw rods on the circular steel plate and the exposed length of the screw rods, the three points form a plane.

[0030] Rotate the two M16 lead screws on the upper turntable 3 to determine two points. Similarly, rotate one M16 lead screw on the lower turntable 3 to determine one point. These three points can determine any plane. After determining one face of the culvert wing wall, rotate the circular steel plate and adjust the length of the lead screw to determine the other face.

[0031] like Figure 2 The following is a positioning method for a culvert wing wall formwork positioning device, comprising the following steps:

[0032] (1) Locate the bottom edge of the wing wall formwork and determine the slope m of the wing wall formwork;

[0033] (2) Position the culvert wing wall formwork positioning device so that the three positioning rods 2 are parallel to the horizontal line and perpendicular to the bottom edge of the wing wall formwork, and determine the distance A from the culvert wing wall formwork positioning device to the bottom edge of the wing wall formwork;

[0034] (3) Calculate the extension length B of the lower positioning rod 2 relative to the support frame 1 based on the slope m of the wing wall formwork and the height h1 of the lower positioning rod 2 from the ground. B = h1 / m + A;

[0035] (4) Calculate the extension length C of the upper positioning rod 2 relative to the support frame 1 based on the slope m of the wing wall formwork and the height h2 of the upper positioning rod 2 from the ground. C = h2 / m + A.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A culvert wing wall formwork positioning device, characterized in that: Includes a support frame (1), on which are installed three positioning rods (2) that can move forward and backward relative to the support frame (1). The three positioning rods (2) are arranged in two layers, and the endpoints of the three positioning rods (2) form a template positioning surface. The three positioning rods (2) are perpendicular to the vertical line. The positioning rods (2) on the same layer are installed on a turntable (3). The two positioning rods (2) on the same turntable (3) are parallel to each other. The positioning rod (2) is a lead screw, and the positioning rod (2) is screwed into the screw hole on the turntable (3).

2. The culvert wing wall formwork positioning device according to claim 1, characterized in that: The support frame (1) includes two equal-sized triangular frames (1.1), which are connected by a column (1.3) at the apex.

3. The culvert wing wall formwork positioning device according to claim 2, characterized in that: The diagonal bracing (1.2) is connected between the side bars of the triangular frame (1.1) and the opposite corners of the rectangular frame formed by the column (1.3).

4. The culvert wing wall formwork positioning device according to claim 3, characterized in that: The upper and lower triangular frames (1.1) are provided with a support member in the middle. The lower hollow shaft on the support member is connected to the upper hollow shaft in the center of the turntable (3). Bolts are inserted into the upper and lower hollow shafts to fasten the turntable (3) to the support member.

5. The positioning method of the culvert wing wall formwork positioning device according to claim 1, characterized in that, Includes the following steps: (1) Locate the bottom edge of the wing wall formwork and determine the slope m of the wing wall formwork; (2) Position the culvert wing wall formwork positioning device so that the three positioning rods (2) are parallel to the horizontal line and perpendicular to the bottom edge of the wing wall formwork, and determine the distance A from the culvert wing wall formwork positioning device to the bottom edge of the wing wall formwork; (3) Calculate the extension length B of the lower positioning rod (2) relative to the support frame (1) based on the slope m of the wing wall formwork and the height h1 of the lower positioning rod (2) from the ground. B = h1 / m + A; (4) Calculate the extension length C of the upper positioning rod (2) relative to the support frame (1) based on the slope m of the wing wall template and the height h2 of the upper positioning rod (2) from the ground. C = h2 / m + A.

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