A method for assembling a component steel reinforcement

Abstract

The application discloses a kind of component steel bar group assembly methods, including setting reference point, reference point is set in component steel bar jig four around;Three-dimensional coordinate information of reference point is obtained;Setting test point, test point is set in component steel bar feature angle point;Aerial photogrammetry is measured to obtain the image information of reference point and test point, and according to the image information of reference point and test point, the three-dimensional coordinate information of reference point is obtained The three-dimensional coordinate information of test point;The three-dimensional coordinate information of test point and the three-dimensional coordinate information of component steel bar feature angle point in design file are compared, and the installation position of component steel bar is adjusted according to the comparison result.The application can improve the measurement efficiency, and then improve the efficiency of steel bar group assembly;And it does not need to repeat operation on the edge of component steel bar, which reduces the safety risk;And single person can complete aerial photogrammetry, which is beneficial to reduce personnel investment.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of bridge engineering tower construction, and particularly relates to a component steel bar assembly method. BACKGROUND

[0002] At present, the traditional measurement method is often used for construction measurement during the component steel bar assembly process of a cross-river bridge. The traditional measurement method requires a measurement personnel to hold a prism rod to reach the top surface of the component steel bar for centering and leveling, and a total station is used for single-point data collection. However, the number of characteristic angle points of the component steel bar is large, and the measurement personnel needs to repeatedly climb the component steel bar for centering and leveling to complete the data collection of all characteristic points, which has a large amount of repeated work and low measurement efficiency.

[0003] In addition, the construction environment of the top surface of the component steel bar is complex and has large mutual interference. If the line of sight of the total station is blocked by an obstacle, secondary station conversion is needed, which consumes a lot of time. Meanwhile, the characteristic angle points on the top surface of the component steel bar are located at the edges of the component steel bar, the prism rod is difficult to erect, the measurement personnel has a large safety risk for edge operation, and another person is needed to assist to complete the data collection, which has a large occupation of human resources. SUMMARY

[0004] The present application provides a component steel bar assembly method to overcome the defects of the prior art and improve the assembly efficiency.

[0005] The present application achieves the above-mentioned purpose by the following technical solutions.

[0006] A component steel bar assembly method, comprising:

[0007] Setting a reference point, the reference point is set around the component steel bar cradle;

[0008] Obtaining three-dimensional coordinate information of the reference point;

[0009] Setting a to-be-measured point, the to-be-measured point is set at a characteristic angle point of the component steel bar;

[0010] Aerial photogrammetry is used to obtain image information of the reference point and the to-be-measured point, and three-dimensional coordinate information of the to-be-measured point is obtained according to the image information of the reference point and the to-be-measured point and the three-dimensional coordinate information of the reference point;

[0011] The three-dimensional coordinate information of the to-be-measured point is compared with the three-dimensional coordinate information of the characteristic angle point of the component steel bar in the design file, and the installation position of the component steel bar is adjusted according to the comparison result.

[0012] In one embodiment, the aerial photogrammetry comprises:

[0013] Aerial photography is used to obtain image information of the reference point and the to-be-measured point;

[0014] Data solving, to obtain the three-dimensional coordinate information of the to-be-measured point according to the image information of the reference point and the to-be-measured point, and the three-dimensional coordinate information of the reference point.

[0015] The beneficial effects of the above technical solutions are: through aerial photography, the image information of the reference point and the to-be-measured point is obtained in the air; data solving obtains the three-dimensional coordinate information of the to-be-measured point based on the image information of the reference point and the to-be-measured point obtained by aerial photography and the known three-dimensional coordinate information of the reference point.

[0016] In an embodiment, the aerial photography comprises:

[0017] The aerial photography is performed by using an aerial photography device, and the aerial photography device comprises a UAV, a camera carried on the UAV, and a fixed-focus lens installed on the camera, and a connecting piece is arranged between the UAV and the camera.

[0018] The beneficial effects of the above technical solutions are: the camera is installed on the UAV through the connecting piece, and after installation, the UAV carries the camera to fly, so as to obtain the image information of the reference point and the to-be-measured point in the air.

[0019] In an embodiment, the setting of the reference point comprises:

[0020] A reference point is additionally arranged on the top of the part steel reinforcement bed.

[0021] The beneficial effects of the above technical solutions are: the reference point is additionally arranged on the top of the part steel reinforcement bed, so as to improve the measurement accuracy.

[0022] In an embodiment, the setting of the reference point comprises:

[0023] The reference point is arranged at a position with good visibility and stable foundation.

[0024] The beneficial effects of the above technical solutions are: the reference point is arranged at a position with good visibility, which is beneficial to measuring the three-dimensional coordinate information of the reference point by using a measuring instrument; the reference point is arranged at a position with stable foundation, so as to avoid the change of the position of the reference point in the subsequent process, and avoid measuring the three-dimensional coordinate information of the reference point again after the change of the position of the reference point.

[0025] In an embodiment, the obtaining of the three-dimensional coordinate information of the reference point comprises:

[0026] The three-dimensional coordinate information of the reference point is obtained by using a total station.

[0027] The beneficial effects of the above technical solutions are: the total station can measure coordinates, elevations and distances, so as to facilitate the obtaining of the three-dimensional coordinate information of the reference point.

[0028] In an embodiment, the reference point and the to-be-measured point are each provided with a coded mark, and the patterns of the coded marks are different from each other.

[0029] The beneficial effects of the above technical solutions are that the patterns of the several coding marks are different, so that each coding mark has uniqueness, thereby facilitating distinguishing each coding mark and facilitating automatic identification of the coding mark by data solving software.

[0030] In an embodiment, the coding mark comprises a sticker, and a circular pattern is arranged on the sticker, and a center mark in the shape of a cross is arranged at the center of the circular pattern.

[0031] The beneficial effects of the above technical solutions are that the coding mark can be pasted on the installation position by means of the sticker, and the circular pattern can be used for rough solving during data solving, and the center mark in the shape of a cross can be used for accurate solving during data solving.

[0032] In an embodiment, a plurality of fan-shaped patterns are arranged on the circumference of the circular pattern.

[0033] The beneficial effects of the above technical solutions are that the coding mark can be distinguished by different arrangement modes of the plurality of fan-shaped patterns on the circumference of the circular pattern.

[0034] In an embodiment, the sticker is provided with a code.

[0035] The beneficial effects of the above technical solutions are that the coding mark can be distinguished by different codes.

[0036] The beneficial effects of the present application are that:

[0037] After obtaining the three-dimensional coordinate information of the reference point, the three-dimensional coordinate information of the to-be-measured point can be measured by means of aerial photogrammetry, that is, a total station or other measuring equipment is no longer needed, and the station setting step before use of the total station is omitted; during aerial photogrammetry, the measuring personnel do not need to climb the part reinforcement multiple times; the aerial photogrammetry can be performed on the top of the part reinforcement feature corner point, so as to avoid the influence of the obstacle below the part reinforcement feature corner point on the measurement; in summary, the measurement efficiency can be improved by means of aerial photogrammetry, and the efficiency of the reinforcement assembly is improved.

[0038] In addition, when measuring the three-dimensional coordinate information of the part reinforcement feature corner point, the to-be-measured point only needs to be set on the part reinforcement feature corner point once, and repeated operation near the part reinforcement feature corner point, that is, repeated operation on the edge of the part reinforcement, is not needed, which reduces the safety risk; and a single person can complete the aerial photogrammetry, which is beneficial to reducing the personnel investment. BRIEF DESCRIPTION OF DRAWINGS

[0039] In the following, the present application will be described in more detail based on embodiments and with reference to the accompanying drawings. In which:

[0040] Figure 1 The flow chart of the present application is shown;

[0041] Figure 2 The schematic diagram of setting the reference point of the present application is shown;

[0042] Figure 3 The schematic diagram of acquiring the three-dimensional coordinate information of the reference point of the present application is shown;

[0043] Figure 4 The schematic diagram of setting the to-be-measured point of the present application is shown;

[0044] Figure 5 The flight path planning diagram of the aerial photography of the present application is shown;

[0045] Figure 6 The structural schematic diagram of the coding mark of the present application is shown;

[0046] In the drawings, the same components use the same reference numerals. The drawings are not in actual proportion.

[0047] Reference numerals:

[0048] 1-reference point, 2-component steel reinforcement jig, 3-total station, 4-component steel reinforcement feature angle point, 5-to-be-measured point, 6-pasting piece, 7-fan pattern, 8-circular pattern, 9-center mark, 10-coding. DETAILED DESCRIPTION

[0049] The present application will be further described below in conjunction with the drawings.

[0050] Since in the component steel reinforcement assembly process, if the traditional measurement method is used, the measurement personnel need to climb the component steel reinforcement repeatedly for centering and leveling to complete the data acquisition of all feature points, the repeated work amount is large, and the measurement efficiency is low; and the component steel reinforcement top surface construction environment is complex, and the mutual interference is large; if the line of sight of the total station is blocked by obstacles, secondary station transfer needs to be performed, which needs to consume more time; at the same time, the component steel reinforcement top surface feature angle point is located at the edge of the component steel reinforcement, the prism rod erection difficulty is large, the measurement personnel edge operation safety risk is large, and another person needs to assist to complete the data acquisition, the human resource occupation amount is large.

[0051] As shown in Figure 1 , the present application provides a component steel reinforcement assembly method, which comprises:

[0052] setting a reference point 1, the reference point 1 is set around a component steel reinforcement jig 2, and the specific case is shown in Figure 2 ;

[0053] acquiring three-dimensional coordinate information of the reference point 1, and the specific case is shown in Figure 3 ;

[0054] The to-be-measured point 5 is arranged at the part steel bar feature corner point 4, and the specific case is shown in the following Figure 4 ;

[0055] Aerial photogrammetry is performed to obtain image information of the reference point 1 and the to-be-measured point 5, and three-dimensional coordinate information of the to-be-measured point 5 is obtained according to the image information of the reference point 1 and the to-be-measured point 5 and the three-dimensional coordinate information of the reference point 1.

[0056] The three-dimensional coordinate information of the to-be-measured point 5 is compared with the three-dimensional coordinate information of the part steel bar feature corner point 4 in the design file, and the installation position of the part steel bar is adjusted according to the comparison result.

[0057] It can be understood that, after the three-dimensional coordinate information of the reference point 1 is obtained, the three-dimensional coordinate information of the to-be-measured point 5 can be measured by aerial photogrammetry, that is, a total station or other measuring equipment is no longer needed, which omits the station setting step before the total station is used; during aerial photogrammetry, the measuring personnel do not need to climb the part steel bar repeatedly; aerial photogrammetry can be performed at the top of the part steel bar feature corner point 4, avoiding the influence of obstacles below the part steel bar feature corner point 4 on the measurement; in summary, by means of aerial photogrammetry, the measurement efficiency can be improved, and thus the efficiency of steel bar assembly is improved.

[0058] In addition, when the three-dimensional coordinate information of the part steel bar feature corner point 4 is measured, the to-be-measured point 5 only needs to be arranged at the part steel bar feature corner point 4 once, and repeated operation near the part steel bar feature corner point 4, that is, repeated operation at the edge of the part steel bar, is not needed, which reduces the safety risk; and the aerial photogrammetry can be completed by a single person, which is conducive to reducing personnel investment.

[0059] It should be noted that the to-be-measured point 5 is arranged at the part steel bar feature corner point 4, and the reference point 1 is arranged around the part steel bar jig 2, which is conducive to reducing the flight area during aerial photogrammetry and facilitating rapid acquisition of image information of the reference point 1 and the to-be-measured point 5.

[0060] In addition, the aerial photogrammetry process and the part steel bar installation position adjustment process can be repeatedly performed until the three-dimensional coordinate information of the to-be-measured point 5 matches the three-dimensional coordinate information of the part steel bar feature corner point 4 in the design file; that is, when the three-dimensional coordinate information of the to-be-measured point 5 does not match the three-dimensional coordinate information of the part steel bar feature corner point 4 in the design file, aerial photogrammetry is performed again.

[0061] In an embodiment, the aerial photogrammetry comprises:

[0062] Aerial photography is performed to obtain image information of the reference point 1 and the to-be-measured point 5.

[0063] Data solving to obtain the three-dimensional coordinate information of the point 5 to be measured according to the image information of the point 1 and the point 5 to be measured, and the three-dimensional coordinate information of the point 1.

[0064] It can be understood that the image information of the point 1 and the point 5 to be measured is obtained in the air by aerial photography; and the data solving is based on the image information of the point 1 and the point 5 to be measured obtained by aerial photography, and the three-dimensional coordinate information of the point 1 to obtain the three-dimensional coordinate information of the point 5 to be measured.

[0065] It should be noted that the data solving software can be Photometric unmanned aerial vehicle data processing software.

[0066] In one embodiment, the aerial photography comprises:

[0067] The aerial photography is performed by using an aerial photography device, and the aerial photography device comprises a unmanned aerial vehicle, a camera carried on the unmanned aerial vehicle, and a fixed-focus lens installed on the camera, and a connecting piece is arranged between the unmanned aerial vehicle and the camera.

[0068] It can be understood that the camera is installed below the unmanned aerial vehicle through the connecting piece, and the lens direction of the camera is arranged downward; after the installation, the unmanned aerial vehicle carries the camera to fly, so as to obtain the image information of the point 1 and the point 5 to be measured in the air.

[0069] It should be noted that the unmanned aerial vehicle can be a multi-rotor unmanned aerial vehicle with RTK positioning function; the camera is a high-speed digital camera, which is internally provided with a WIFI transmission module, has an effective pixel of 61 million pixels, adopts a 35mm full-frame (35.7*23.8mm) CMOS image sensor, has a highest resolution of 60M, has a highest continuous shooting speed of 10 pictures per second, and can replace the lens; the fixed-focus lens has a focal length of 24mm wide-angle fixed focus; the connecting piece is made of 3D printing light composite material to reduce the weight of the connecting piece, so as to reduce the actual load of the unmanned aerial vehicle and improve the actual endurance time.

[0070] It should be further noted that, Figure 5 A flight route planning diagram in the aerial photography is shown, and the unmanned aerial vehicle is set to fly in a fixed route in the aerial photography; the actual route number, flight height and lateral overlap degree are set according to the actual situation of the site during the flight route planning, but the premise is that the image information of the point 1 and the point 5 to be measured can be obtained.

[0071] In addition, a tablet computer is also needed during the aerial photogrammetry, and the data solving software is installed in the tablet computer; the WIFI transmission module internally provided in the camera is electrically connected with the tablet computer during the flight of the unmanned aerial vehicle; the photos are transmitted to the tablet computer during the shooting process of the camera; after the flight is completed and the photo transmission is completed, the photos are imported into the data solving software for data solving.

[0072] In one embodiment, the setting of the reference point 1 comprises:

[0073] The reference point 1 is added on the top of the component reinforcement formwork 2.

[0074] It can be understood that, since the component reinforcement feature angle point 4 is also located on the top of the component reinforcement, adding the reference point 1 on the top of the component reinforcement formwork 2 can improve the measurement accuracy of the three-dimensional coordinate information of the to-be-measured point 5.

[0075] In one embodiment, the setting of the reference point 1 comprises:

[0076] The reference point 1 is set at a position with good visibility and stable foundation.

[0077] It can be understood that, setting the reference point 1 at a position with good visibility is conducive to measuring the three-dimensional coordinate information of the reference point 1 by using a measuring instrument; and setting the reference point 1 at a position with stable foundation can avoid the change of the position of the reference point 1 in the subsequent process, and avoid the measurement of the three-dimensional coordinate information of the reference point 1 again after the change of the position of the reference point 1.

[0078] It should be noted that the position with stable foundation refers to a position that will not be offset due to the deformation of the formwork; in addition, the component reinforcement formwork 2 should be a long-term preserved component reinforcement formwork 2.

[0079] In one embodiment, the acquisition of the three-dimensional coordinate information of the reference point 1 comprises:

[0080] The three-dimensional coordinate information of the reference point 1 is acquired by using a total station 3.

[0081] It can be understood that the total station 3 can measure coordinates, elevations and distances, thereby facilitating the acquisition of the three-dimensional coordinate information of the reference point 1.

[0082] In one embodiment, the reference point 1 and the to-be-measured point 5 are each provided with a coded mark, and the patterns of the coded marks are different.

[0083] It can be understood that, since the patterns of the coded marks are different, each coded mark has uniqueness, thereby facilitating the distinction of each coded mark and being conducive to the automatic identification of the coded mark by the data solving software.

[0084] It should be noted that the coded mark should be able to be preserved for a long time, that is, the coded mark can be made of a material that is not easily affected by rain or sunlight.

[0085] In one embodiment, as shown in Figure 6 the coded mark comprises a pasting piece 6, the pasting piece 6 is provided with a circular pattern 8, and the center of the circular pattern 8 is provided with a center mark 9 in the shape of a cross.

[0086] It can be understood that the coding mark can be pasted on the mounting position by the pasting member 6; the circular pattern 8 can be used for rough calculation in data calculation, and the center mark 9 of the cross-shaped pattern can be used for accurate calculation in data calculation.

[0087] In one embodiment, the circular pattern 8 is provided with a plurality of fan-shaped patterns 7 in the circumferential direction.

[0088] It can be understood that the coding marks can be distinguished by different arrangement modes of the plurality of fan-shaped patterns 7 in the circumferential direction of the circular pattern 8.

[0089] It should be noted that the adjacent fan-shaped patterns 7 on the same coding mark can be arranged at intervals or continuously.

[0090] In one embodiment, the pasting member 6 is provided with a code 10.

[0091] It can be understood that the coding marks can be distinguished by different codes 10.

[0092] It should be noted that the code 10 in the embodiment is in the form of numbers, and the code 10 can also be in the form of letters or a combination of letters and numbers.

[0093] In the description of the present application, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0094] Although the present application is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present application. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present application defined in the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways other than those described in the original claims. It can also be understood that the features described in conjunction with a single embodiment can be used in other described embodiments.

Claims

1. A method of assembling a component steel reinforcement, characterized by, The method comprises the following steps: setting a reference point (1) around a part steel cradle (2); acquiring three-dimensional coordinate information of the reference point (1); setting a to-be-measured point (5) at a part steel characteristic corner point (4); airborne photogrammetry to acquire image information of the reference point (1) and the to-be-measured point (5), and to obtain three-dimensional coordinate information of the to-be-measured point (5) according to the image information of the reference point (1) and the to-be-measured point (5) and the three-dimensional coordinate information of the reference point (1); comparing the three-dimensional coordinate information of the to-be-measured point (5) with three-dimensional coordinate information of the part steel characteristic corner point (4) in a design file, and adjusting an installation position of the part steel according to a comparison result; the airborne photogrammetry comprises: airborne photography to acquire image information of the reference point (1) and the to-be-measured point (5); data solving to obtain three-dimensional coordinate information of the to-be-measured point (5) according to the image information of the reference point (1) and the to-be-measured point (5) and the three-dimensional coordinate information of the reference point (1); the airborne photography comprises: using an airborne photography device to perform the airborne photography, the airborne photography device comprising a drone, a camera carried on the drone, and a fixed-focus lens installed on the camera, and a connecting piece being arranged between the drone and the camera; the setting of the reference point (1) comprises: adding the reference point (1) on the top of the part steel cradle (2); coding marks are arranged at the reference point (1) and the to-be-measured point (5), and the patterns of the coding marks are different from each other; the coding mark comprises a sticking piece (6), a circular pattern (8) is arranged on the sticking piece (6), and a center mark (9) in the shape of a cross is arranged at the center of the circular pattern (8); a plurality of fan-shaped patterns (7) are arranged on the circumference of the circular pattern (8); an encoding (10) is arranged on the sticking piece (6).

2. The method of claim 1, wherein the setting of the reference point (1) comprises: setting the reference point (1) at a position with good visibility and stable foundation.

3. The method of claim 1, wherein: the acquisition of the three-dimensional coordinate information of the reference point (1) comprises: acquiring the three-dimensional coordinate information of the reference point (1) by using a total station (3).

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