Visual and quantifiable design space position method for bridge construction lofting

Abstract

The invention provides a design space position visualization quantifiable method suitable for bridge construction lofting, which specifically comprises the following steps: (1) Dynamo software reads a bridge floor road center line given by a design drawing, and generates a corresponding bridge based on the bridge floor road center line, comprising the following steps: sequentially generating a bridge pier corresponding to a bridge deck road center line, a support padstone at the top of the bridge pier and a bridge deck box girder falling on the support padstone; and (2) reading the bridge corresponding to the midline of the bridge floor road from the Dynamo software by the Revit software, and displaying the bridge. A Dynamo software and Revit software combined three-dimensional modeling calculation method is adopted, the Dynamo software quickly establishes piers, support cushion stones and box girders in batches under an absolute coordinate system, position coordinate calculation of important feature points on a bridge is further completed by means of the Dynamo software, and three-dimensional display is performed on the bridge constructed by the Dynamo software through the Revit software. And synchronously displaying the position coordinates of the important feature points.

Description

Technical Field

[0001] The present invention relates to the technical field of surveying and setting out, and provides a method for visualizing and quantifying the design space position for bridge construction setting out. Background Art

[0002] The calculation of construction surveying and setting out data is crucial for ensuring the position, size and shape of engineering structures, and is directly related to the quality, progress and safety of engineering construction. It is a necessary prerequisite to ensure that the project is constructed according to the design requirements. However, the traditional bridge design and construction measurement and control methods are unable to cope with the complexity and refinement requirements of precast rigid frame bridges.

[0003] For the construction drawing design obtained by the participating units, the information of each structure is usually expressed by lines on the drawings to the construction unit, but its true structural form requires strong spatial thinking ability to deal with, which is not conducive to the understanding and restoration of the design intention. In the case of complex and diverse design structural forms, it is often difficult to accurately and efficiently complete the calculation of the three-dimensional space positions of the main feature points by using conventional mathematical theory methods, resulting in the reliability and stability of the results not being guaranteed.

[0004] Plane position and elevation are two closely related links, which jointly determine the spatial form and use function of the building. However, the current methods have the problem of decoupling of plane and elevation calculations, which directly leads to the unintuitiveness of the data, making it difficult for surveyors to intuitively understand the overall form and refined measurement and control of the structure; traditional surveying data often relies on methods such as electronic, paper data tables, manual marking, and instrument import for on-site setting out. Usually, it is necessary to correspond the setting out data with the actual structural feature points one by one on site, which has a strong dependence on the experience and ability of surveyors. In the case of complex structures or harsh construction environments, this traditional data method is difficult to cope with the changing actual situations, not only time-consuming but also prone to errors, and unable to guarantee the accuracy and efficiency of engineering setting out. Summary of the Invention

[0005] In view of this, the present application provides a method for visualizing and quantifying the design space position applicable to bridge construction setting out, aiming to improve at least one of the above problems.

[0006] Specifically, it includes the following technical solutions:

[0007] On the one hand, the embodiment of the present application provides a method for visualizing and quantifying the design space position applicable to bridge construction setting out, and the method is as follows:

[0008] (1) The Dynamo software reads the center line of the bridge deck road given in the design drawing and generates a corresponding bridge based on the center line of the bridge deck road, including successively generating piers corresponding to the center line of the bridge deck road, bearing pads on the tops of the piers, and bridge deck box girders resting on the bearing pads.

[0009] (2) The Revit software reads the bridge corresponding to the center line of the bridge deck road from the Dynamo software and displays it.

[0010] In some embodiments of the present invention, the generation process of the piers;

[0011] (11) Import the pier information defined in the design drawing into the Dynamo software. The pier information includes: pier type, mileage where it is located, and the length, height, and width of the pier.

[0012] (12) Classify all piers based on the pier type, and successively import the pier parameters of each type of pier into the Dynamo software to generate corresponding piers at the corresponding mileage.

[0013] (13) Calculate the tangent azimuth angle of the position of the center line of the bridge deck road corresponding to the mileage where the pier is located, and adjust the orientation of the pier based on the tangent azimuth angle to complete the generation of the pier.

[0014] In some embodiments of the present invention, the generation process of the bearing pads is specifically as follows:

[0015] (31) Import the bearing pad information defined in the design drawing into the Dynamo software. The pier information includes: bearing pad type, mileage where it is located, and the length, height, and width of the bearing pad.

[0016] (32) Classify all bearing pads based on the bearing pad type, and successively import the bearing pad parameters of each type of bearing pad into the Dynamo software to generate corresponding bearing pads on the top surface of the pier at the mileage position where they are located.

[0017] (33) Read the tangent azimuth angle of the position of the center line of the bridge deck road corresponding to the mileage where the bearing pad is located, and adjust the orientation of the bearing pad based on the tangent azimuth angle to complete the generation of the bearing pad.

[0018] In some embodiments of the present invention, the generation process of the bridge deck box girder;

[0019] Import the center line of the bridge deck road in the design drawing into the Dynamo software, segment the center line of the bridge deck road based on the set step length, respectively generate box girder segments corresponding to each segment of the center line of the bridge road, and successively place the generated box girder segments on the bearing pads at the corresponding positions to form the bridge deck box girder.

[0020] In some embodiments of the present invention, the generation method of each box girder segment:

[0021] (31) Import the information of each box girder section in the design drawings into Dynamo software. The box girder section information includes: the mileage where the box girder section is located and the structural curve of the box girder section.

[0022] (32) Extract multiple inflection points from the structural curves of all box girder sections, perform curve fitting on all inflection points located at the same position of the structural curves, obtain multiple inflection point curves, generate the plane between adjacent inflection point curves, and form the corresponding box girder segments.

[0023] In some embodiments of the present invention, after step (1), it further includes:

[0024] Define the characteristic points on the bridge and calculate the position coordinates of the characteristic points on the bridge in Dynamo software.

[0025] In some embodiments of the present invention, the characteristic points include: the corner points of the bearing pad stones and the inflection points of the deck box girders.

[0026] In some embodiments of the present invention, while the bridge is being displayed in Revit software, the position coordinates of the characteristic points on the bridge are synchronously displayed.

[0027] In some embodiments of the present invention, the method for reading the center line of the bridge deck road is specifically as follows:

[0028] Import the center line of the bridge deck road in the design drawings into Revit software, and Dynamo software reads the center line of the bridge deck road from Revit software.

[0029] The present invention adopts a combined three-dimensional modeling calculation method of Dynamo software and Revit software. Dynamo software quickly and batch builds piers, bearing pad stones, and box girders in the absolute coordinate system. Further, with the help of Dynamo software, the position coordinates of important characteristic points on the bridge are calculated. Then, through Revit software, the bridge constructed by Dynamo software is three-dimensionally displayed, and the position coordinates of important characteristic points are synchronously displayed. Revit is a professional three-dimensional information modeling software that supports parametric design, can quickly create accurate construction models by modifying parameter values, has a powerful visualization function, can display design details and overall effects in real time, and can import and export various file formats to achieve efficient data interaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 The flowchart of the design space position visual and quantifiable method applicable to bridge construction lofting provided by the embodiment of the present invention;

[0032] Figure 2 The schematic diagram of the generation of the bridge deck box girder provided by the embodiment of the present invention, where (a) is the structural curve of the input box girder section, and (b) is the bridge deck box girder corresponding to the structural curve of the box girder section;

[0033] Through the above-mentioned drawings, the specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0035] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meaning as commonly understood by those of ordinary skill in the art.

[0036] The present invention adopts a combined three-dimensional modeling calculation method of Dynamo software and Revit software. Dynamo software quickly and batch builds bridge piers, bearing pads, and box girders in the absolute coordinate system. Further, with the help of Dynamo software, the position coordinates of important feature points on the bridge are calculated. Then, Revit software performs three-dimensional display on the bridge constructed by Dynamo software and synchronously displays the position coordinates of important feature points. Revit is a professional three-dimensional information modeling software that supports parametric design. By modifying parameter values, an accurate construction model can be quickly created. It has a powerful visualization function, can display design details and overall effects in real time, and can import and export various file formats to achieve efficient data interaction.

[0037] Figure 1 The flowchart of the design space position visual and quantifiable method applicable to bridge construction lofting provided by the embodiment of the present invention is as follows:

[0038] (1) Dynamo software reads the center line of the bridge deck road given in the design drawings from Revit software and automatically generates the bridge corresponding to the center line of the bridge deck road, that is, sequentially generates the bridge piers corresponding to the center line of the bridge deck road, the bearing pads on the top of the bridge piers, and the bridge deck box girders resting on the bearing pads;

[0039] (2) The Revit software reads the bridge corresponding to the center line of the bridge deck road from the Dynamo software and displays it. The display includes bridge piers, bearing pads on the top of the bridge piers, and the bridge deck box girder resting on the bearing pads.

[0040] The Dynamo software first automatically generates bridge piers based on the center line of the bridge deck road. The specific process of automatically generating bridge piers is as follows:

[0041] (11) Import the center line of the bridge deck road in the design drawings into the Revit software, and the Dynamo software reads the center line of the bridge deck road from the Revit software;

[0042] (12) Import the bridge pier information defined in the design drawings into the Dynamo software. The bridge pier information includes: bridge pier type, mileage where it is located, and the length, height, and width of the bridge pier;

[0043] (13) Classify all bridge piers based on the bridge pier type, and sequentially import the bridge pier parameters of each type of bridge pier into the Dynamo software to generate corresponding types of bridge piers at the corresponding mileage;

[0044] (14) Calculate the tangent azimuth angle of the position of the center line of the bridge deck road corresponding to the mileage where the bridge pier is located, and adjust the orientation of the bridge pier based on the tangent azimuth angle to complete the generation of the bridge pier in the Dynamo software.

[0045] The orientation of the bridge pier is basically consistent with the direction of the tangent azimuth angle. Of course, a certain angular deviation is allowed between the two. In special cases, a large angular deviation is also allowed between the two.

[0046] After the Dynamo software has completed the automatic generation of the bridge piers based on the center line of the bridge deck road, the next step is to automatically generate the bearing pads on the top of the bridge piers. The specific process of automatically generating the bearing pads is as follows:

[0047] (31) Import the bearing pad information defined in the design drawings into the Dynamo software. The pier information includes: bearing pad type, mileage where it is located, and the length, height, and width of the bearing pad;

[0048] (32) Classify all bearing pads based on the bearing pad type, and sequentially import the bearing pad parameters of each type of bearing pad into the Dynamo software to generate corresponding bearing pads on the top of the bridge pier at the mileage position where it is located;

[0049] (33) Directly read the tangent azimuth angle of the position of the center line of the bridge deck road corresponding to the mileage where the bearing pad is located, and adjust the orientation of the bearing pad based on the tangent azimuth angle to complete the generation of the bearing pad in the Dynamo software;

[0050] The orientation of the bearing padstone is basically consistent with the direction of the tangent azimuth angle. Of course, a certain angular deviation between the two is allowed. In special cases, a large angular deviation between the two is also allowed. When the orientation of the bearing padstone is the same as that of the bridge pier, after the generation of the bridge pier body and the bearing padstone body is completed, the orientation of the bearing padstone and the bridge pier can be adjusted at one time based on the tangent azimuth angle at the corresponding position of the bridge deck road center line.

[0051] After Dynamo software automatically generates the bridge pier and the bearing padstone in sequence based on the bridge deck road center line, the next step is to automatically generate the bridge deck box girder that lands on the bearing padstone, and the automatic generation process of the bridge deck box girder;

[0052] Import the bridge deck road center line in the design drawing into Dynamo software, segment the bridge deck road center line based on the set step length, generate the box girder segments corresponding to each segment of the bridge road center line respectively, and sequentially place the generated box girder segments on the bearing padstones at the corresponding positions to form the box girder.

[0053] In the embodiment of the present invention, the bridge deck road center line is segmented to form several segments of the bridge deck road center line, and they are sequentially numbered according to the extension direction of the bridge deck road center line. The box girder segments corresponding to each segment of the bridge deck road center line are generated respectively, and the box girder ends are sequentially placed on the bearing padstones according to the numbering order to form the bridge deck box girder.

[0054] The generation method of the box girder segment will be described in more detail below, and its generation process is specifically as follows:

[0055] (31) Import the information of each box girder section in the design drawing into Dynamo software. The box girder section information includes: the mileage where the box girder section is located and the structural curve of the box girder section;

[0056] (32) Extract multiple inflection points from the structural curves of all box girder sections, perform curve fitting on all inflection points at the same position on the structural curve, obtain multiple inflection point curves, generate the plane between adjacent inflection point curves, and output the corresponding box girder segments.

[0057] Combined with Figure 2 The generation process of the box girder is introduced. Figure 2 (a) shows a set of structural curves of box girder sections. There are nine inflection points on the box girder section, which are sequentially represented by A1 to A9. Sequentially extract each inflection point on all box girder sections, and place the inflection points Ai at the same position on the structural curve in an inflection point set. For example, place all the A2 inflection points on all box girder sections in an inflection point set, perform curve fitting on the inflection points in each inflection point set to form nine inflection point curves, generate the surface between adjacent inflection point curves on the structural curve to form the corresponding box girder segments, and the bridge deck box girder formed based on the box girder segments is as Figure 2 (b) shown.

[0058] In an embodiment of the present invention, in the Dynamo software, after the construction of bridge piers, bearing pads at the top of the bridge piers, and bridge deck box girders placed on the bearing pads are sequentially completed based on the center line of the bridge deck road, it is necessary to define the characteristic points of the bridge, that is, the key position points on the bridge. The present invention selects the corner points of the bearing pads and the inflection points of the bridge deck box girders as the characteristic points of the bridge, calculates the position coordinates of the corner points of the bearing pads and the inflection points of the bridge deck box girders in the Dynamo software, and can simultaneously display the position coordinates of the characteristic points while displaying the bridge through the Revit software.

[0059] The present invention intuitively displays the structure of the bridge and the positions of important characteristic points through a three-dimensional simulation method, which helps surveyors to further understand and deepen the design intent of the construction drawings before construction layout; in addition, due to the long project line, diverse types of main structures, and large amount of calculation and review of the bridge, batch modeling and calculation can greatly reduce the workload of construction personnel, and the accuracy of data can also be further guaranteed.

[0060] Those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practice of the present application disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include known common general knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and embodiments are only regarded as exemplary.

[0061] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A design spatial position visualizable and quantifiable method applicable to bridge construction layout, characterized in that, The specific method is as follows: (1) The Dynamo software reads the center line of the bridge deck road given in the design drawing, and generates a corresponding bridge based on the center line of the bridge deck road, including successively generating piers corresponding to the center line of the bridge deck road, bearing pads on the top of the piers, and bridge deck box girders resting on the bearing pads; (2) The Revit software reads the bridge corresponding to the center line of the bridge deck road from the Dynamo software and displays it.

2. The visual and quantifiable method for designing spatial positions applicable to bridge construction layout according to claim 1, characterized in that (11) Import the pier information defined in the design drawing into the Dynamo software. The pier information includes: pier type, mileage where it is located, and the length, height, and width of the pier; (12) Classify all piers based on the pier type, and successively import the pier parameters of each type of pier into the Dynamo software to generate corresponding piers at the corresponding mileage; (13) Calculate the tangent azimuth angle of the position of the center line of the bridge deck road corresponding to the mileage where the pier is located, and adjust the orientation of the pier based on the tangent azimuth angle to complete the generation of the pier. (31) Import the bearing pad information defined in the design drawing into the Dynamo software. The pier information includes: bearing pad type, mileage where it is located, and the length, height, and width of the bearing pad; 3. The design space position visual and quantifiable method applicable to bridge construction lofting as described in claim 1, characterized in that (32) Classify all bearing pads based on the bearing pad type, and successively import the bearing pad parameters of each type of bearing pad into the Dynamo software to generate corresponding bearing pads on the top surface of the pier at the mileage position; (33) Read the tangent azimuth angle of the position of the center line of the bridge deck road corresponding to the mileage where the bearing pad is located, and adjust the orientation of the bearing pad based on the tangent azimuth angle to complete the generation of the bearing pad. (11) Import the center line of the bridge deck road in the design drawing into the Dynamo software, segment the center line of the bridge deck road based on the set step length, and respectively generate box girder segments corresponding to each segment of the center line of the bridge road. The generated box girder segments are successively placed on the bearing pads at the corresponding positions to form the bridge deck box girder. (31) Import the cross-section information of each box girder in the design drawing into the Dynamo software. The box girder cross-section information includes: the mileage where the box girder cross-section is located and the structural curve of the box girder cross-section; 4. The visual and quantifiable method for designing spatial positions applicable to bridge construction layout as claimed in claim 1, wherein (32) Extract multiple inflection points from the structural curves of all box girder cross-sections, perform curve fitting on all inflection points located at the same position of the structural curve, obtain multiple inflection point curves, and generate planes between adjacent inflection point curves to form corresponding box girder segments. (16) After step (1), it further includes:

5. The visual and quantifiable method for designing spatial positions applicable to bridge construction layout as claimed in claim 4, wherein Defining characteristic points on the bridge and calculating the position coordinates of the characteristic points in the Dynamo software. The characteristic points include: The corner points of the bearing pads and the inflection points of the bridge deck box girder.

6. The visual and quantifiable method for the design space position applicable to bridge construction layout as described in claim 5, characterized in that While the Revit software displays the bridge, the position coordinates of the characteristic points on the bridge are synchronously displayed. (21) The specific method for reading the center line of the bridge deck road is as follows:

7. The visual and quantifiable method for the designed spatial position applicable to the lofting of bridge construction according to claim 6, characterized in that Import the center line of the bridge deck road in the design drawing into the Revit software, and the Dynamo software reads the center line of the bridge deck road from the Revit software. ​ 8. The visual and quantifiable method for the designed spatial position applicable to bridge construction layout according to claim 6, characterized in that ​ 9. The design space position visual and quantifiable method applicable to bridge construction layout as claimed in claim 1, characterized in that, ​ ​

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