Steel arch connecting steel plate positioning tool and manufacturing method and using method thereof

Abstract

The invention discloses a steel arch connecting steel plate positioning tool, and a manufacturing method and a using method thereof, and belongs to the technical field of tunnel construction. The manufacturing method of the steel arch connecting steel plate positioning tool comprises the following steps that S1, the type of I-shaped steel in a to-be-connected steel arch is obtained, excess materials of the I-shaped steel of the same type are cut out to serve as a base, and the cut width is larger than or equal to the widest size of a notch of the I-shaped steel of the same type; s2, a wing plate on one side of a web plate on the base is machined, so that the size of the machined wing plate is matched with the size of a notch of I-shaped steel of the same model; and S3, a positioning pin is fixedly arranged on the wing plate which is not machined in the S2, and the arrangement position of the positioning pin is matched with the position of the hole in the connecting steel plate. The steel arch connecting steel plate positioning tool manufactured through the method is simple in structure, local materials are used, installation is convenient, and the positioning tool is light, small and exquisite and can accurately position each section of I-shaped steel, axis connection is ensured, the construction quality of each truss of I-shaped steel arch is improved, meanwhile, the tedious pre-splicing link is simplified, and the work efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, and in particular to a steel arch frame connecting steel plate positioning tool, a manufacturing method thereof and a use method thereof. Background Art

[0002] At present, the "New Austrian Tunneling Method" is often used in tunnel construction in the highway industry. Generally, corresponding composite lining support is adopted according to the surrounding rock form. After each cycle of tunnel excavation and danger elimination, steel arch frame or steel grid frame is erected. Highway tunnels use more steel arch frame methods. Commonly used I-beams are I20b, I18, I16, I14 and other models. In order to facilitate the erection and installation, each ring of I-beams is generally made in sections. The length of the sections is divided as evenly as possible according to the span of the tunnel. Each section of I-beam is connected by connecting steel plates (bolted or welded), among which bolted connection is safer and more reliable. At present, the method used for connecting I-beams is to pre-assemble adjacent pre-bent I-beams by several workers. During the pre-assembly process, each section of the I-beam needs to be placed according to the tunnel contour line, and the connecting steel plate needs to be placed between the adjacent I-beams. The bolt holes are marked on the connecting steel plates with a marker, and then the marked steel plates are opened with a hole opener. Although this method can achieve the connection between steel arch frames, the welding process of the connecting steel plates is time-consuming and labor-intensive, and it is easy to have inaccurate positioning of the bolt holes, which requires a high sense of responsibility from the workers. Summary of the invention

[0003] In order to overcome the problem that position deviation occurs during the welding process of the existing connecting steel plates to the I-beams, which leads to the steel arch frame installation not meeting the requirements, the present invention provides a steel arch frame connecting steel plate positioning tool, a manufacturing method and a use method thereof.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] The manufacturing method of the steel arch frame connecting steel plate positioning tool comprises the following steps: S1, obtaining the I-beam model in the steel arch frame to be connected, cutting the I-beam remnant of the same model as the base, and cutting the width greater than or equal to the widest dimension of the slot of the I-beam of the same model; S2, processing the wing plate on one side of the web plate on the base so that the size of the processed wing plate is compatible with the slot size of the I-beam of the same model; S3, fixing the positioning pin on the wing plate not processed by S2, and the positioning pin setting position is compatible with the hole position on the connecting steel plate.

[0006] The steel arch frame connecting steel plate positioning tool made by this method has a simple structure, uses local materials, is easy to install, is light and compact, can accurately position each I-beam, ensures axial connection, improves the construction quality of each I-beam steel arch frame, and at the same time simplifies the tedious pre-assembly process and improves work efficiency.

[0007] In some embodiments, in S1, the cut width is less than or equal to the waist height of the same type of I-beam.

[0008] In this embodiment, the interception width is limited as above, so that when the steel arch frame connecting steel plate positioning tool is placed in the I-beam groove, the upper part does not protrude from the I-beam to avoid interference; and it is convenient for the processing of the wing plate in S2; and the quality of the steel arch frame connecting steel plate positioning tool made by this method can meet the requirements of limiting the support of the connecting steel plate without external force.

[0009] In some embodiments, the two sides of the wing panel processed in S2 are offset inwardly by 0.2 mm-1 mm relative to the inner contours of the two sides of the notch.

[0010] In this embodiment, the processing dimensions of the wing plate in S2 are limited as above, so that the steel arch frame connecting steel plate positioning tool can slide in the I-beam groove without causing excessive positioning error.

[0011] In some embodiments, the positioning pin in S3 is selected to be a bolt, and the bolt is fixedly connected to the wing plate by welding, and the size of the bolt is compatible with the specifications of the opening on the connecting steel plate.

[0012] In this embodiment, bolts are selected as positioning pins, which is convenient for material selection and facilitates the connection limitation between the steel arch frame connecting steel plate positioning tool and the connecting steel plate.

[0013] In some embodiments, it further comprises S4, a handle is fixedly provided on the wing panel which has not been processed by S2.

[0014] In this embodiment, the handle is provided as above to facilitate the movement of the steel arch frame connection steel plate positioning tool, including movement in a non-working state and movement when located in the I-beam notch.

[0015] In some embodiments, the handle is made of steel bars, which are welded between two wing plates that are not processed by S2 and are located in the middle of the base.

[0016] In this embodiment, steel bars are selected as handles, and material selection is convenient; the steel bars are welded between the two wing plates that have not been processed by S2 and are located in the middle of the base. In this way, based on the distribution of the wing plates of the intercepted base, the extension direction of the steel bars is consistent with the extension direction of the I-beam groove, that is, the extension direction of the steel bars is consistent with the sliding direction of the steel arch frame connecting steel plate positioning tool in the I-beam groove, which is convenient for applying force to move the steel arch frame connecting steel plate positioning tool.

[0017] The present invention also provides a steel arch frame connecting steel plate positioning tool, which is manufactured by the manufacturing method of the steel arch frame connecting steel plate positioning tool described in any of the above embodiments.

[0018] The present invention also provides a method for using a steel arch frame connecting steel plate positioning tool, comprising the following steps: Y1, preparing connecting steel plates to be welded, I-beams, and the steel arch frame connecting steel plate positioning tool as described in claim 7; Y2, placing one side of the processed wing plate of the steel arch frame connecting steel plate positioning tool in the groove of the I-beam; Y3, moving the steel arch frame connecting steel plate positioning tool or the connecting steel plate so that the opening on the connecting steel plate and the positioning pin on the steel arch frame connecting steel plate positioning tool are matched and connected, and the connecting steel plate abuts against the I-beam; Y4, welding the connecting steel plate and the I-beam, and removing the steel arch frame connecting steel plate positioning tool after welding; Y5, repeating Y1-Y4, and welding the connecting steel plate and the I-beam to be connected in turn.

[0019] In some embodiments, after the welding of the I-beam and the corresponding connecting steel plate is completed, the connecting steel plates corresponding to the I-beams of adjacent sections are aligned, and connecting bolts are inserted to fix the connection.

[0020] In some embodiments, after the I-beam and the corresponding connecting steel plate are welded, a stiffening rib is welded between the I-beam and the connecting steel plate.

[0021] The beneficial effects of the present invention are:

[0022] The steel arch frame connecting steel plate positioning tool made by this method has a simple structure, uses local materials, is easy to install, is light and compact, can accurately position each I-beam, ensures axial connection, improves the construction quality of each I-beam steel arch frame, and at the same time simplifies the tedious pre-assembly process and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A front view of a steel arch connecting steel plate positioning tool provided by the present invention;

[0024] Figure 2 A side view of a steel arch connecting steel plate positioning tool provided by the present invention;

[0025] Figure 3 A top view of a steel arch connecting steel plate positioning tool provided by the present invention;

[0026] Figure 4 It is a structural schematic diagram of connecting steel plates in the present invention;

[0027] Figure 5 It is a schematic diagram of the connection of adjacent steel arch frames of the present invention.

[0028] Marked in the figure, 1-base, 11-web, 12-wing plate, 2-locating pin, 3-handle, 4-connecting steel plate, 5-weld, 6-stiffening rib, 7-I-beam. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings.

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] like Figure 1-5 As shown, Figure 1-Figure 3 A schematic structural diagram of a steel arch frame connecting steel plate positioning tool manufactured according to the manufacturing method of the steel arch frame connecting steel plate positioning tool in the present application is shown; Figure 4 The structural diagram of the connecting steel plate 4 is shown in detail. Figure 5 The schematic diagram of the state in which adjacent steel arch frames are connected by connecting steel plates 4 is shown in focus.

[0032] The manufacturing method of the steel arch frame connecting steel plate positioning tool comprises the following steps:

[0033] S1. Obtain the model of the I-beam 7 in the steel arch to be connected, cut off the remaining material of the same model of the I-beam 7 as the base 1, and cut off the widest dimension of the notch of the same model of the I-beam 7;

[0034] S2. Process the wing plate 12 on one side of the web 11 on the base 1 so that the size of the processed wing plate 12 matches the slot size of the same type of I-beam 7; the matching in S2 means that the processed wing plate 12 can slide along the slot of the I-beam 7 without causing too large positioning error.

[0035] S3, a positioning pin 2 is fixedly set on the wing plate 12 that has not been processed in S2, and the setting position of the positioning pin 2 is matched with the position of the hole on the connecting steel plate 4. The matching in S3 means that when the steel arch connecting steel plate positioning tool is located at the notch of the I-beam 7, the hole on the connecting steel plate 4 and the positioning pin 2 match, and the relative position of the connecting steel plate 4 and the I-beam 7 is consistent with the preset.

[0036] The steel arch frame connecting steel plate positioning tool made by the method has a simple structure, is made of local materials, is easy to install, is light and compact, can accurately position each section of the I-beam 7, ensures the axial connection, improves the construction quality of each I-beam 7 steel arch frame, and simplifies the tedious pre-assembly process, thereby improving work efficiency.

[0037] Combination Figure 1 and Figure 2 As shown, the wing plate 12 on one side of the web 11 on the base 1 is processed so that the steel arch frame connecting steel plate positioning tool can be placed in the groove of the I-beam 7 of the same specification when it is used later; the positioning pin 2 is fixedly set on the wing plate 12 on the other side of the web 11 so that the steel arch frame connecting steel plate positioning tool can be used later to cooperate with the opening of the connecting steel plate 4 to assist in positioning, so as to facilitate the welding between the connecting steel plate 4 and the steel arch frame to be connected.

[0038] In this embodiment, in S1, the interception width is less than or equal to the waist height of the same type of I-beam 7. The interception width is limited as above, so that when the steel arch frame connecting steel plate positioning tool is placed in the notch of the I-beam 7, the upper part does not protrude from the I-beam 7 to avoid interference; and it is convenient for processing the wing plate 12 in S2; and the quality of the steel arch frame connecting steel plate positioning tool made by this method can meet the requirements of limiting the support of the connecting steel plate 4 without external force.

[0039] In this embodiment, in S1, the cut width is greater than or equal to the widest dimension of the slot of the same type of I-beam 7, that is, greater than or equal to the dimension of the upper edge of the slot. At this time, after the wing plate 12 on one side of the web 11 is processed in S2, the upper half of the base 1 can be in contact with the upper end face of the I-beam 7 to be connected during use, so as to facilitate the judgment of whether the lower end face of the steel arch frame connecting steel plate positioning tool is in contact with the I-beam 7 to be connected during use.

[0040] In this embodiment, I20b I-beam is taken as an example, and the interception width should be less than or equal to 200 mm. Obviously, this method can be used for I-beams of other specifications, and the size restrictions in this application can be adaptively adjusted accordingly.

[0041] In this embodiment, the two sides of the processed wing plate 12 in S2 are offset inward by 0.2mm-1mm relative to the inner contours of the two sides of the notch. The processing size of the wing plate 12 in S2 is limited as above, so that the steel arch connecting steel plate positioning tool can slide in the notch of the I-beam 7 without causing excessive positioning error.

[0042] In this embodiment, the positioning pin 2 in S3 is selected as a bolt, and the bolt is fixedly connected to the wing plate 12 by welding, and the size of the bolt is compatible with the specifications of the opening on the connecting steel plate 4. The bolt is selected as the positioning pin 2, which is convenient for material selection and facilitates the connection limit between the steel arch connecting steel plate positioning tool and the connecting steel plate 4.

[0043] Obviously, the number of positioning pins 2 corresponds to the holes on the connecting steel plate 4. There are four holes in the existing connecting steel plate 4. When the steel arch connecting steel plate positioning tool is used, it is located on one side of the I-beam 7, and two positioning pins 2 are correspondingly arranged on its upper part.

[0044] Here, matching means that the size of the bolt corresponds to the size of the opening on the connecting steel plate 4. In this embodiment, the bolt is an M24 bolt, and the opening on the connecting steel plate 4 is a φ26 opening.

[0045] In this embodiment, S4 is also included, and a handle 3 is fixedly provided on the wing plate 12 that has not been processed by S2. The handle 3 is provided as above to facilitate the movement of the steel arch connecting steel plate positioning tool, including the movement in the non-working state and the movement when located at the notch of the I-beam 7.

[0046] Obviously, step S3 and step S4 do not necessarily have a contextual relationship.

[0047] Further, the handle 3 is made of steel bars, which are welded between the two wing plates 12 that have not been processed by S2 and are located in the middle of the base 1. The steel bars are selected as the handle 3, which is convenient for material selection; the steel bars are welded between the two wing plates 12 that have not been processed by S2 and are located in the middle of the base 1. In this way, based on the distribution of the wing plates 12 of the base 1, the extension direction of the steel bars is consistent with the extension direction of the notch of the I-beam 7, that is, the extension direction of the steel bars is consistent with the sliding direction of the steel arch frame connection steel plate positioning tool in the notch of the I-beam 7, which is convenient for applying force to the steel arch frame connection steel plate positioning tool to move.

[0048] In this embodiment, the handle 3 is a φ10 round steel bar.

[0049] Figure 1-Figure 3 The steel arch connecting steel plate positioning tool manufactured by the aforementioned method is demonstrated.

[0050] The present invention also provides a method for using a steel arch connecting steel plate positioning tool, comprising the following steps:

[0051] Y1, prepare the connecting steel plates 4 to be welded, the I-beams 7, and the steel arch connecting steel plate positioning tool as claimed in claim 7;

[0052] Y2, place one side of the processed wing plate 12 of the steel arch connecting steel plate positioning tool into the notch of the I-beam 7;

[0053] Y3, move the steel arch connecting steel plate positioning tool or the connecting steel plate 4, so that the opening on the connecting steel plate 4 and the positioning pin 2 on the steel arch connecting steel plate positioning tool are matched and connected, and the connecting steel plate 4 abuts against the I-beam 7;

[0054] Y4, weld the connecting steel plate 4 and the I-beam 7, and remove the steel arch connecting steel plate positioning tool after welding; Y5, repeat Y1-Y4, and weld the connecting steel plate 4 and the I-beam 7 to be connected in turn.

[0055] In this embodiment, after the welding of the I-beam 7 and the corresponding connecting steel plate 4 is completed, the connecting steel plates 4 corresponding to the I-beams 7 of adjacent sections are aligned, and connecting bolts are inserted to fix the connection.

[0056] In this embodiment, after the welding of the I-beam 7 and the corresponding connecting steel plate 4 is completed, the stiffening rib 6 is welded between the I-beam 7 and the connecting steel plate 4. This step may occur before the adjacent segment I-beams 7 are connected. Figure 4 and Figure 5 The distribution positions of the welds 5 and the stiffening ribs 6 on the connecting steel plates 4 in this embodiment are shown.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for manufacturing a steel arch connecting steel plate positioning tool, characterized in that: The following steps are included: S1. Obtain the model of the I-beam (7) in the steel arch to be connected, cut off the remaining material of the I-beam (7) of the same model as the base (1), and cut off the widest dimension of the notch of the I-beam (7) of the same model; S2, processing the wing plate (12) on one side of the web (11) on the base (1) so that the size of the processed wing plate (12) is compatible with the notch size of the same type of I-beam (7); S3. A positioning pin (2) is fixedly arranged on the wing plate (12) that has not been processed in S2, and the location of the positioning pin (2) matches the location of the hole on the connecting steel plate (4).

2. The method for manufacturing the steel arch connecting steel plate positioning tool according to claim 1, characterized in that: In S1, the cut width is less than or equal to the waist height of the I-beam (7) of the same type.

3. The method for manufacturing the steel arch connecting steel plate positioning tool according to claim 1, characterized in that: The two sides of the processed wing plate (12) in S2 are offset inward by 0.2 mm to 1 mm relative to the inner contours of the two sides of the notch.

4. The method for manufacturing the steel arch connecting steel plate positioning tool according to claim 1, characterized in that: The positioning pin (2) in S3 is selected to be a bolt, and the bolt is fixedly connected to the wing plate (12) by welding, and the size of the bolt is compatible with the specifications of the opening on the connecting steel plate (4).

5. The method for manufacturing the steel arch connecting steel plate positioning tool according to any one of claims 1 to 4, characterized in that: It also includes S4, a handle (3) fixedly arranged on the wing plate (12) that has not been processed by S2.

6. The method for manufacturing the steel arch connecting steel plate positioning tool as claimed in claim 5, characterized in that: The handle (3) is made of a steel bar, which is welded between two wing plates (12) that have not been processed by S2 and is located in the middle of the base (1).

7. Steel arch connecting steel plate positioning tool, characterized by: The invention is made by the manufacturing method of the steel arch frame connecting steel plate positioning tool described in any one of claims 1 to 6.

8. The method for using the steel arch frame connecting steel plate positioning tool is characterized by: The following steps are included: Y1, preparing the connecting steel plates (4) to be welded, the I-beams (7), and the steel arch connecting steel plate positioning tool as claimed in claim 7; Y2. Place one side of the processed wing plate (12) of the steel arch connecting steel plate positioning tool into the notch of the I-beam (7); Y3. Move the steel arch connecting steel plate positioning tool or the connecting steel plate (4) so ​​that the opening on the connecting steel plate (4) and the positioning pin (2) on the steel arch connecting steel plate positioning tool are matched and connected, and the connecting steel plate (4) abuts against the I-beam (7); Y4, welding the connecting steel plate (4) and the I-beam (7), and after welding, removing the steel arch connecting steel plate positioning tool; Y5. Repeat Y1-Y4 to weld the connecting steel plate (4) and the I-beam (7) to be connected in sequence.

9. The method for using the steel arch connecting steel plate positioning tool as claimed in claim 8, characterized in that: After the welding of the I-beam (7) and the corresponding connecting steel plate (4) is completed, the connecting steel plates (4) corresponding to the I-beams (7) of adjacent sections are aligned, and connecting bolts are inserted to fix the connection.

10. The method for using the steel arch connecting steel plate positioning tool as claimed in claim 8 or 9, characterized in that: After the I-beam (7) and the corresponding connecting steel plate (4) are welded, a stiffening rib (6) is welded between the I-beam (7) and the connecting steel plate (4).

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