A high-altitude large-span truss crane track positioning inspection tool and inspection method

Abstract

The present invention provides a high-altitude large-span truss crane track positioning inspection tool. The inspection tool types include frame column moving point tool, corbel embedded parts and steel beam inspection tool and track inspection tool. At the same time, the present invention provides a high-altitude large-span truss crane track positioning inspection method. The present invention has reliable quality assurance through field experiments, convenient and flexible construction, high precision, effectively guarantees the accuracy of positioning inspection, optimizes construction progress, has flexible station erection, does not occupy the space of other construction processes, helps to meet the needs of construction progress optimization, and effectively meets the quality requirements for on-site construction. Compared with the original positioning inspection method of setting a total station on the ground, the construction efficiency is greatly improved, and it is green and environmentally friendly with high sustainable development.

Description

Technical Field

[0001] The invention relates to the field of construction technology, and in particular to a high-altitude large-span truss crane track positioning inspection tool and an inspection method. Background Art

[0002] With the development of the national economy, the demand for energy is getting higher and higher, which makes nuclear power construction in my country have a broad space and scale for development. The truss bracket of the nuclear power plant is used to support the truss beam and is installed on the frame column. Due to the space requirements, the span is large, the height of the bracket is high from the ground, the measurement and positioning installation is difficult, and the aerial operation risk is high. Therefore, the installation quality requirements are strict. How to reduce the error in the installation process of the truss bracket and the track and improve the accuracy brings great difficulty to the measurement. Summary of the invention

[0003] In response to the problems mentioned in the background technology, the present invention proposes a high-altitude large-span truss crane track positioning inspection tool and inspection method. The present invention adopts a frame column moving point tool, a total station, a rail installation on a steel beam, an inspection tool, and a track inspection tool to obtain first-hand information on the surface of the corbel embedded parts, inspect and control the quality of each track installation process, ensure the quality of the project, and measure data accurately and reliably, which is conducive to speeding up the construction progress and improving the construction quality and construction progress of the truss crane track installation.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is:

[0005] A high-altitude large-span truss crane track positioning and inspection tool is used on the high-altitude large-span truss crane track. The high-altitude large-span truss crane track includes two rows of truss crane tracks, each row of truss crane tracks is composed of a number of frame columns with the same structure, and corbels are arranged on the frame columns. Corbel embedded parts are arranged on the upper surface of the corbels. Steel beams are installed on the corbels of the same row of truss crane tracks. The steel beams span multiple frame columns and are positioned and installed on the corbel embedded parts. Steel rails are installed on the steel beams. The inspection tool includes a frame column moving point tool, a total station, corbel embedded parts and a steel beam inspection tool and a track inspection tool. The frame column moving point tool includes a total station fixture and a forced centering base. The total station fixture is fixed on the frame column, and the total station fixture is located above the corbel. The forced centering base is fixed on the frame column. The middle base is fixed on the total station fixing device, and the total station is fixed on the forced centering base. The total station can be centered through the forced centering base and the detection point located on the upper surface of the corbel. The corbel embedded parts and steel beam inspection tooling include a first angle steel and a first reflector. The first reflector is fixed on the first angle steel. The angle steel can be fixed on the corbel embedded parts or the steel beam so that the first reflector is located at a specified position. The track inspection tooling includes a bar magnet, a second reflector and a second angle steel. There are two bar magnets, one on the left and one on the right, which are adsorbed and fixed on both sides of the rail. The upper end of the bar magnet extends above the rail. The second angle steel is fixed to the upper end of the bar magnet. The second reflector is fixed on the second angle steel. The first reflector and the second reflector are used to indicate the position for illumination by the total station.

[0006] To optimize the above technical solutions, the specific measures taken also include:

[0007] The above-mentioned total station fixing device includes a fixed channel steel, a tie rod, a tie rod gasket and a butterfly nut. There are two tie rods, each of which is fixedly fitted with a frame column. The tie rod passes through the fixed channel steel, and the fixed channel steel is locked on the tie rod by screwing the butterfly nut on the tie rod. The tie rod gasket is placed between the fixed channel steel and the butterfly nut. One end of the fixed channel steel extends to just above the corbel, and the forced centering base is fixedly installed on this end of the fixed channel steel.

[0008] The above-mentioned total station is connected to the forced centering base through the centering connecting bolts. The centering plate fixing bolts pass through the fixed channel steel and the forced centering base to fix the fixed channel steel and the forced centering base. Nuts are screwed on the centering plate fixing bolts.

[0009] A backing plate is arranged between the nut and the fixed channel steel.

[0010] There are three first reflective sheets mentioned above, among which one is slidably set on the left side of the first angle steel, one is slidably set on the right side of the first angle steel, and the other is fixed in the middle position of the first angle steel. A scale is set on the first angle steel. The first angle steel can be attached to one side of the corbel embedded part or the steel beam. By adjusting the positions of the first reflective sheets on both sides of the first angle steel, the three first reflective sheets are respectively aligned with the center point and two side points of one side of the corbel embedded part or the steel beam.

[0011] The second reflective sheet is fixed at the middle position of the second angle steel. When the track inspection tool is installed on the rail, the center of the second reflective sheet is coaxial with the center axis of the rail.

[0012] A method for inspecting the positioning of a high-altitude large-span truss crane track, using the above-mentioned high-altitude large-span truss crane track positioning inspection tool, specifically comprises the following steps:

[0013] Step 1: Take each corbel embedded part of the truss track as the detection point, define the leftmost detection point of the first row of truss tracks as D1, the rightmost detection point as D2, the leftmost detection point of the first row of truss tracks as D3, and the rightmost detection point as D4, introduce two secondary control points within the visible range of the truss track, install the frame column moving point tooling on the frame column where D1 is located, install the total station on the frame column moving point tooling, and align the total station with D1;

[0014] Step 2: Level the total station, turn it on, and perform precise leveling;

[0015] Step 3: Control the total station to look back at a secondary control point, measure the coordinates, distance and direction values, and then control the total station to look back at another secondary control point, measure the coordinates, distance and direction values, and calculate the coordinates, distance and direction values ​​of the two secondary control points;

[0016] Step 4: Calculate the total station point coordinates, input the total station point coordinates into the total station, look back at a secondary control point, set the direction, check another secondary control point, and then measure the coordinates of D2 and D3 through the total station.

[0017] Step 5: Install the frame column moving point tooling on the frame column where D4 is located, install the total station on the frame column moving point tooling, and align the total station with D4; repeat steps 2 to 4 to measure the coordinates of D2 and D3.

[0018] Step 6: Compare the coordinates of D2 and D3 measured twice in step 4 and step 5. If the coordinate deviation value is less than the threshold, take the average value of the two measured coordinate values ​​as the reference value and proceed to step 7. If the coordinate deviation value is greater than the threshold, repeat steps 1 to 6.

[0019] Step 7. Reset the total station orientation with the reference value, and use the corbel embedded parts and the steel beam inspection tool to locate the center line of the corbel embedded parts; check the position and elevation of the corbel embedded parts, align the corbel embedded parts inspection tool with the center line position of one end of the corbel embedded parts, measure the three-dimensional coordinates and elevation of the center point and the two side points, align the center line position of the other end of the corbel embedded parts, and measure the three-dimensional coordinates and elevation of the center point and the two side points;

[0020] Step 8, compare the measured elevations of each point of each corbel embedded part, and calculate the elevation deviation value of each corbel embedded part based on the highest elevation value;

[0021] Step 9: According to the elevation deviation value of each corbel embedded part, steel gaskets of different thicknesses are placed on each corbel embedded part to ensure that the elevation deviation of each corbel embedded part is within the predetermined range.

[0022] Step 10: Hoist the steel beams on each corbel embedded part;

[0023] Step 11, install the corbel embedded parts and the steel beam inspection tooling on the steel beam, measure the center line and edge line coordinates of the top track of the steel beam, if the center line and edge line coordinates of the top track of the steel beam are within the predetermined range, proceed to step 12, if the deviation of the center line and edge line coordinates of the top track of the steel beam is greater than the predetermined range, remove the steel beam, and repeat steps 7 to 11;

[0024] Step 12: Install rails on the steel beams.

[0025] Step 13: Install the track inspection tool on the rail, and use the total station to measure the center coordinates and elevation of the rail; then install the track inspection tool at another location on the rail, and measure the center coordinates and elevation of the rail again, and repeat several times.

[0026] Step 14. Compare the center straightness, height difference and span of the rails. If the center straightness, height difference and span are within the predetermined range, the high-altitude large-span truss crane track is considered qualified. Otherwise, it is unqualified. Remove the rails and repeat steps 12 to 14 until the high-altitude large-span truss crane track is qualified.

[0027] In step 1, the frame column moving point tooling is installed on the frame column, 1200mm higher than the upper surface of the corbel.

[0028] In step nine, steel washers of different thicknesses are placed on each corbel embedded part to ensure that the elevation deviation of each corbel embedded part is within 1 mm.

[0029] The invention discloses a high-altitude large-span truss crane track positioning inspection tool and inspection method, which has the following beneficial effects:

[0030] 1. Easy to measure, the frame column moving point tooling can be set according to the site conditions, and the layout is convenient, especially suitable for high-altitude locations.

[0031] 2. High measurement accuracy, using inspection tooling, no need to set point markings in advance, one-stop observation, no cumulative error.

[0032] 3. The measurement is fast. The instrument can be set up according to the construction sequence, or multiple groups can work at the same time according to the needs to complete the entire inspection work;

[0033] 3. Simple structure and easy processing. The inspection tool is composed of a magnet and a reflective sheet, which can be quickly processed and reused.

[0034] The invention has been tested on site, and the quality is reliably guaranteed. The construction is convenient, flexible and high in precision. In short, the use of a high-altitude large-span truss crane track positioning inspection tool and inspection method of the invention effectively ensures the accuracy of positioning inspection, optimizes the construction progress, has flexible station erection, does not occupy the space of other construction processes, helps to meet the needs of optimizing the construction progress, and effectively meets the quality requirements for on-site construction. Compared with the original positioning inspection method of setting up a total station on the ground, it greatly improves the construction efficiency, is green and environmentally friendly, and has high sustainable development. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the plan layout of the high-altitude large-span truss crane track;

[0036] Figure 2 Check the elevation diagram for the corbel embedment;

[0037] Figure 3 Check the elevation diagram for the steel beam surface;

[0038] Figure 4 This is a schematic diagram of the frame column moving point tooling elevation;

[0039] Figure 5 This is a schematic diagram of the frame column moving point tooling structure;

[0040] Figure 6 This is a schematic diagram of the corbel embedded parts and steel beam inspection tooling;

[0041] Figure 7 This is a schematic diagram of the track inspection tooling.

[0042] Names marked in the figure: frame column 1, frame column moving point tooling 2, forced centering base 21, centering connecting bolts 22, centering plate fixing bolts 23, pads 24, nuts 25, fixed channel steel 26, total station 27, tie rod gaskets 28, butterfly nuts 29, tie rods 20, secondary control points 3, steel beams 4, rails 5, corbel embedded parts and steel beam inspection tooling 6, first angle steel 61, first reflector 62, corbel embedded parts 7, track inspection tooling 8, bar magnet 81, second reflector 82, bar magnet and angle steel connecting bolts 83, second angle steel 84.

[0043] The specific implementation is

[0044] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated 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 application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0045] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0046] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0047] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or units (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" / "several" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0048] A nuclear power plant is equipped with two 250 / 60t electric double-beam bridge cranes. The crane beams are welded I-shaped steel beams with horizontal brake trusses. The heaviest component hoisted by the crane during equipment installation and maintenance is the generator stator, which weighs about 502t. The stator is hoisted by two cranes and crossarms. The crane beam is designed according to the maximum wheel pressure of the crane. Two 250t / 60t crane beams are installed in the plant, and the crane beam is a combined I-beam type. The plane size of the plant axis is 64m×115m. The top elevation of the A / B column is +37.75m, and the top elevation of the bracket is +26.48m. The crane beam is on the brackets of the A and B columns respectively, and the top elevation of the crane beam is +29.03m; whether the measurement work is perfect will directly affect the construction quality and progress of the track installation.

[0049] The present invention is further described below in conjunction with an embodiment. The positioning inspection process of this embodiment is as follows:

[0050] A high-altitude large-span truss crane track positioning inspection tool, comprising a frame column moving point tool 2, a total station 27, a bracket embedded part and steel beam inspection tool 6 and a track inspection tool 8,

[0051] The frame column moving point tooling 2 includes a total station fixture and a forced centering base 21. The total station fixture includes a fixed channel steel 26, a tie rod 20, a tie rod gasket 28 and a butterfly nut 29. There are two tie rods 20, each tie rod 20 is fixedly matched with the frame column 1, and the tie rod 20 passes through the fixed channel steel 26. The fixed channel steel 26 is locked on the tie rod 20 by screwing the butterfly nut 29 on the tie rod 20. The tie rod gasket 28 is padded between the fixed channel steel 26 and the butterfly nut 29. One end of the fixed channel steel 26 extends to the top of the bracket, and the forced centering base 21 is fixedly installed on the end of the fixed channel steel 26. The total station 27 is connected to the forced centering base 21 through the centering connection bolt 22. The centering plate fixing bolt 23 passes through the fixed channel steel 26 and the forced centering base 21 to fix the fixed channel steel 26 with the forced centering base 21. The centering plate fixing bolt 23 is screwed with a nut 25. A backing plate 24 is provided between the nut 25 and the fixing channel steel 26 .

[0052] The corbel embedded part and steel beam inspection tool 6 includes a first angle steel 61 and a first reflective sheet 62. There are three first reflective sheets 62, one of which is slidably set on the left side of the first angle steel 61, one is slidably set on the right side of the first angle steel 61, and the other is fixed in the middle position of the first angle steel 61. A scale is set on the first angle steel 61. The first angle steel 61 can be attached to one side of the corbel embedded part 7 or the steel beam 4. By adjusting the positions of the first reflective sheets 62 on both sides of the first angle steel 61, the three first reflective sheets 62 are respectively aligned with the center point and two side points of one side of the corbel embedded part 7 or the steel beam 4.

[0053] The track inspection tool 8 includes a bar magnet 81, a second reflective sheet 82 and a second angle steel 84. There are two bar magnets 81, one on the left and one on the right, which are adsorbed and fixed on both sides of the rail 5. The upper end of the bar magnet 81 extends above the rail 5. The second angle steel 84 is fixed to the upper end of the bar magnet 81, and the second reflective sheet 82 is fixed on the second angle steel 84.

[0054] High altitude large span truss crane track positioning inspection method,

[0055] The following steps are involved:

[0056] 1. Install the fixed frame column moving point tooling D1 at about 1200mm above the frame column on the upper part of the truss crane bracket, and set up the total station;

[0057] 2. Level the total station, turn it on, and level it precisely;

[0058] 3. The coordinates of a point SC005 (1687.0592, B2811.2567) of the backsight secondary control network were measured, with a distance of 74.1955m and a direction value of 10°12′15.3″. The coordinates of a point SC002 (A1756.5925, 2870.0424) of another secondary control network were measured, with a distance of 59.2748m and a direction value of 95°27′28.4″.

[0059] 4. Calculate the coordinates of total station point D1 (A1699.1000, 2884.4685), input the calculated coordinates into the total station, look back at the secondary control network point SC005, set the azimuth to 260°39′37.6″, check another secondary control network point SC002, the azimuth is 345°54′50.7″, measure the coordinates of the two orthogonal frame column moving points D2 (A1699.1003, B3000.5312), D4 (A1651.9003, B2884.4680);

[0060] 5. At the diagonal point D3 of the frame column, repeat steps 1 to 4 to measure the coordinates of D3 (A1651.9005, B3000.5315); D2 coordinates (A1699.0997, B3000.5305), D4 coordinates (A1651.9008, B2884.4676);

[0061] 6. If the coordinates of the moving points of two orthogonal frame columns are less than 2 mm, take the average value, and use the D2 coordinate (A1699.1000, B3000.5308) and D4 coordinate (A1651.9006, B2884.4678) as the reference value;

[0062] 7. Reset the total station orientation to 90°00′00.0″ based on the D1-D2 reference value, set the elevation to 27.7312m, and use the bracket embedded parts inspection tool to locate the bracket embedded parts to the bracket centerline A1699.000m;

[0063] 8. Check the position and elevation of the embedded parts of the truss crane bracket, align the embedded parts inspection tooling of the bracket with the center line of the end of the bracket embedded parts, measure the three-dimensional coordinates and elevation of the center point and the two side points, align the other end of the center line of the bracket embedded parts, and measure the three-dimensional coordinates and elevation of the center point and the two side points;

[0064]

[0065] The unit in the table is m.

[0066] 9. Compare the elevations of each point of the corbel embedded parts, and calculate the elevation deviation of the corbel embedded parts based on the highest elevation value of 26.4756m;

[0067]

[0068]

[0069] The unit of deviation in the table is mm.

[0070] 10. According to the deviation value of embedded parts, steel gaskets of various thicknesses are placed to ensure that the elevation deviation is within 1mm;

[0071] 11. After the elevation is qualified, the steel beams are hoisted;

[0072] 12. Use the steel beam inspection tool to measure and locate the center line A1699.000m, A1652.00 and the edge line of the top track of the steel beam;

[0073] 13. Install fixed track;

[0074] 14. Use inspection tooling to check the track center coordinates and elevation;

[0075]

[0076] 15. Compare the track center straightness, height difference, and span;

[0077]

[0078]

[0079]

[0080] Conclusion: The straightness is based on the maximum value of A value of the same track. The calculation results meet the requirements.

[0081] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0082] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A high-altitude large-span truss crane track positioning inspection tool, applied to a high-altitude large-span truss crane track, the high-altitude large-span truss crane track comprises two rows of truss crane tracks, each row of truss crane tracks is composed of a plurality of frame columns (1) with the same structure, a corbel is arranged on the frame column (1), a corbel embedded part (7) is arranged on the upper surface of the corbel, a steel beam (4) is installed on the corbel of the same row of truss crane tracks, the steel beam (4) spans across a plurality of frame columns (1) and is positioned and installed on the corbel embedded part (7), a steel rail (5) is installed on the steel beam (4), and the characteristics are: The inspection tool comprises a frame column moving point tool (2), a total station (27), a corbel embedded part and steel beam inspection tool (6), and a track inspection tool (8). The frame column moving point tool (2) comprises a total station fixing device and a forced centering base (21). The total station fixing device is fixed on the frame column (1), and the total station fixing device is located above the corbel. The forced centering base (21) is fixed on the total station fixing device. The total station (27) is fixed on the forced centering base (21). The total station (27) can be centered through the forced centering base (21) and the detection point located on the upper surface of the corbel. The corbel embedded part and steel beam inspection tool (6) comprises a first angle steel (61) and a first reflector (62). ), the first reflector (62) is fixed on the first angle steel (61), the angle steel (61) can be fixed on the corbel embedded part (7) or the steel beam (4), so that the first reflector (62) is located at a specified position, the track inspection tool (8) comprises a bar magnet (81), a second reflector (82) and a second angle steel (84), there are two bar magnets (81), one on the left and one on the right, which are fixed on both sides of the rail (5), the upper end of the bar magnet (81) extends above the rail (5), the second angle steel (84) is fixed to the upper end of the bar magnet (81), the second reflector (82) is fixed on the second angle steel (84), and the first reflector (62) and the second reflector (82) are used to indicate the position for illumination by the total station.

2. The high-altitude large-span truss crane track positioning inspection tool according to claim 1 is characterized by: The total station fixing device includes a fixed channel steel (26), a tie rod (20), a tie rod gasket (28) and a butterfly nut (29). There are two tie rods (20), each of which is fixedly matched with the frame column (1). The tie rod (20) passes through the fixed channel steel (26), and the fixed channel steel (26) is locked on the tie rod (20) by screwing the butterfly nut (29) on the tie rod (20). The tie rod gasket (28) is cushioned between the fixed channel steel (26) and the butterfly nut (29). One end of the fixed channel steel (26) extends to the top of the corbel, and the forced centering base (21) is fixedly installed on this end of the fixed channel steel (26).

3. The high-altitude large-span truss crane track positioning inspection tool according to claim 2 is characterized by: The total station (27) is connected to the forced centering base (21) via a centering connection bolt (22); a centering plate fixing bolt (23) passes through a fixed channel steel (26) and the forced centering base (21) to fix the fixed channel steel (26) to the forced centering base (21); a nut (25) is screwed onto the centering plate fixing bolt (23).

4. The high-altitude large-span truss crane track positioning inspection tool according to claim 3 is characterized by: A backing plate (24) is arranged between the nut (25) and the fixing channel steel (26).

5. The high-altitude large-span truss crane track positioning inspection tool according to claim 1 is characterized by: There are three first reflective sheets (62), one of which is slidably arranged on the left side of the first angle steel (61), one is slidably arranged on the right side of the first angle steel (61), and one is fixed in the middle of the first angle steel (61). A scale is set on the first angle steel (61). The first angle steel (61) can be attached to one side of the corbel embedded part (7) or the steel beam (4). By adjusting the positions of the first reflective sheets (62) located on both sides of the first angle steel (61), the three first reflective sheets (62) are respectively aligned with the center point and two side points of one side of the corbel embedded part (7) or the steel beam (4).

6. The high-altitude large-span truss crane track positioning inspection tool according to claim 5 is characterized by: The second reflective sheet (82) is fixed at the middle position of the second angle steel (84), and when the track inspection tool (8) is installed on the rail (5), the center of the second reflective sheet (82) is coaxial with the center axis of the rail (5).

7. A method for checking the positioning of a high-altitude large-span truss crane track, characterized by: The use of the high-altitude large-span truss crane track positioning inspection tool as described in claim 6 specifically includes the following steps: Step 1: Take each bracket embedded part of the truss suspension track as a detection point, define the leftmost detection point of the first row of truss suspension tracks as D1, the rightmost detection point as D2, the leftmost detection point of the second row of truss suspension tracks as D3, and the rightmost detection point as D4, introduce two secondary control points (3) within the visible range of the truss suspension track, install a frame column moving point tooling (2) on the frame column (1) where D1 is located, install a total station (27) on the frame column moving point tooling (2), and align the total station (27) with D1; Step 2: Level the total station, turn it on, and perform precise leveling; Step 3, control the total station to look back at a secondary control point (3), measure the coordinates, distance and direction values, then control the total station to look back at another secondary control point (3), measure the coordinates, distance and direction values, and calculate the total station coordinates according to the coordinates, distances and direction values ​​of the two secondary control points (3); Step 4: Calculate the total station point coordinates, input the total station point coordinates into the total station, look back at a secondary control point (3), set the direction, check another secondary control point (3), and then measure the coordinates of D2 and D3 through the total station. Step 5: Install the frame column moving point fixture (2) on the frame column (1) where D4 is located, install the total station (27) on the frame column moving point fixture (2), and align the total station (27) with D4; repeat steps 2 to 4 to measure the coordinates of D2 and D3. Step 6: Compare the coordinates of D2 and D3 measured twice in step 4 and step 5. If the coordinate deviation value is less than the threshold, take the average value of the two measured coordinate values ​​as the reference value and proceed to step 7. If the coordinate deviation value is greater than the threshold, repeat steps 1 to 6. Step 7: Reset the orientation of the total station with the reference value, and use the inspection tool (6) of the corbel embedded parts and the steel beam to locate the center line of the corbel embedded parts; check the position and elevation of the corbel embedded parts, align the corbel embedded parts inspection tool with the center line position of one end of the corbel embedded parts, measure the three-dimensional coordinates and elevation of the center point and the two side points, align the center line position of the other end of the corbel embedded parts (7), and measure the three-dimensional coordinates and elevation of the center point and the two side points; Step 8, comparing the measured elevations of each point of each corbel embedded part (7), taking the highest elevation value as a reference, calculating the elevation deviation value of each corbel embedded part (7); Step 9: According to the elevation deviation value of each corbel embedded part (7), steel gaskets of different thicknesses are placed on each corbel embedded part (7) to ensure that the elevation deviation of each corbel embedded part (7) is within a predetermined range. Step 10: hoisting the steel beam (4) on each corbel embedded part (7); Step 11, install the corbel embedded parts and the inspection tool (6) of the steel beam on the steel beam (4), measure the coordinates of the center line and the edge line of the top track of the steel beam (4), if the coordinates of the center line and the edge line of the top track of the steel beam (4) are within the predetermined range, proceed to step 12, if the deviation of the coordinates of the center line and the edge line of the top track of the steel beam (4) is greater than the predetermined range, remove the steel beam (4), and repeat steps 7 to 11; Step 12: Install the steel rail (5) on the steel beam (4). Step 13: Install the track inspection tool (8) on the rail (5), and use the total station to measure the center coordinates and elevation of the rail (5); then install the track inspection tool (8) at another position on the rail (5), and measure the center coordinates and elevation of the rail (5) again, and repeat several times. Step 14, compare the center straightness, height difference and span of the rail (5). If the center straightness, height difference and span are within the predetermined range, the high-altitude large-span truss crane track is considered qualified. Otherwise, it is unqualified, and the rail (5) is removed. Repeat steps 12 to 14 until the high-altitude large-span truss crane track is qualified.

8. The method for checking the positioning of a high-altitude large-span truss crane track according to claim 7 is characterized by: In step 1, the frame column moving point tooling (2) is installed on the frame column (1) and is 1200 mm higher than the upper surface of the corbel.

9. The method for checking the positioning of a high-altitude large-span truss crane track according to claim 7 is characterized by: In step nine, steel washers of different thicknesses are placed on each corbel embedded part (7) to ensure that the elevation deviation of each corbel embedded part (7) is within 1 mm.

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