CN113779684B - Revit-based roadbed slope lattice beam construction model construction method - Google Patents
Revit-based roadbed slope lattice beam construction model construction method Download PDFInfo
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Abstract
The invention relates to the technical field of building construction design, and provides a construction model building method of a roadbed slope lattice beam based on Revit, which comprises the following steps: step S1: generating a road center line according to the design drawing; step S2: acquiring a slope contour line and a position thereof, a slope edge line and a position thereof according to a road center line and a design drawing; step S3: and (5) carrying out batch generation of the roadbed slope lattice beams according to the slope contour lines and the slope edge lines. By adopting the mode, modeling can be automatically and rapidly completed only by identifying the slope line.
Description
Technical Field
The invention relates to the technical field of building construction design, in particular to a construction model building method of roadbed slope lattice beams based on Revit.
Background
BIM is fully called "building information model (Building Information Modeling)", and all information of engineering projects including information in design process, construction process, and operation management process are all integrated into one building model. The method has the eight characteristics of information completeness, relevance, consistency, visualization, coordination, simulation, optimality and diagonality.
Dynamo is a visual programming software based on flow, and is now used as a matched plug-in Revit for realizing visual programming, creating road curve line type and parameterizing and driving components. The functions of rapid modeling, parameterized design, batch processing of model information and the like are realized.
At present, a conventional modeling method is generally adopted for building a roadbed slope lattice beam by adopting Revit: and establishing groups of transverse lattice beams, vertical lattice beams and the like, determining slope protection slopes, placing the groups of components one by one according to the slopes of the slopes, and modifying corresponding parameters. Modeling is very cumbersome and inefficient due to slope irregularities.
Disclosure of Invention
In order to realize rapid modeling of the roadbed slope lattice beam, the invention provides a rapid modeling method of a roadbed slope lattice beam construction model.
The invention solves the problems by adopting the following technical scheme:
a construction model building method of roadbed slope lattice beams based on Revit comprises the following steps:
step S1: generating a road center line according to the design drawing;
step S2: acquiring a slope contour line and a position thereof, a slope edge line and a position thereof according to a road center line and a design drawing;
step S3: and (5) carrying out batch generation of the roadbed slope lattice beams according to the slope contour lines and the slope edge lines.
Further, the step S1 includes:
step S101: calculating pile-by-pile coordinate data according to a flat curve and vertical curve element table known in a design drawing;
step S102: generating points corresponding to coordinates according to pile-by-pile coordinate data in Dynamo software;
step S103: the points generated in step S102 are connected in series to generate a road center line.
Further, the step S2 includes:
step S201: importing the center line of the road into a project file corresponding to the revit software, and setting the volume as visible;
step S202: leading in a road plane design drawing and a slope surface cross section drawing, and positioning by using a road center line;
step S203: and picking up slope edge lines by using the imported plane design drawing, and picking up slope contour lines by using the imported slope cross-sectional drawing.
Further, the step S3 includes:
step S301: operating Dynamo programs, selecting a road center line, and drawing two cut-off lines for determining the range of the side slope by the aisle road center line;
step S302: copying and translating the two cut-off lines along the upper direction and the lower direction of the Z axis to finally obtain six cut-off lines;
step S303: creating entities among the six cut-off lines, and acquiring the length and the position of the side slope to be generated through the intersection line of the entities and the central line of the road;
step S304: acquiring starting point coordinates of a slope contour line;
step S305: the method comprises the steps of aligning a slope contour line starting point with a slope starting point, and then obtaining the position relation between the slope contour line and a road center line to determine the final position of the slope;
step S306: creating a curved surface model according to the slope surface;
step S307: creating a vertical lattice Liang Moxing;
step S308: creating a lateral lattice Liang Moxing;
step S309: and creating a roadbed slope lattice beam model according to the slope surface, the vertical lattice Liang Moxing and the transverse lattice beam model.
Further, in the step S302: the value of the upward shift is higher than the value of the highest point of the project slope, and the value of the downward shift is lower than the value of the lowest point of the project slope.
Further, the step S306 specifically includes: and (3) the slope surface is translated to the left side or the right side of the road according to the distance A, and then a curved surface model is generated along the central line of the road, wherein the distance A is the distance between the slope foot and the central line of the road.
Further, the step S307 specifically includes: and acquiring the slope line length according to the curved surface model, creating a lattice beam section, and creating a vertical lattice Liang Moxing in the lattice beam section.
Further, the step S303 employs a loft creation entity.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, the dynamic is programmed by using Dynamo, so that modeling can be automatically and rapidly completed only by identifying the slope line. Modeling accuracy is improved; the modeling efficiency is quickened; the model is convenient to modify in batches and is repeatedly used; is beneficial to modeling complex, high and large slopes.
Drawings
FIG. 1 is a flow chart of a method for rapidly modeling a construction model of a roadbed slope lattice beam;
FIG. 2 is pile-by-pile coordinate data of a road center line extracted by the invention;
FIG. 3 is a road centerline model created in accordance with the present invention;
FIG. 4 is a schematic view of the constraint lines associated with the road side slope lattice beam of the present invention;
FIG. 5 is a generated roadbed slope lattice Liang Moxing;
reference numerals: 1. the central line of the road, 2, the broken line, 3, the edge line of the slope, 4, the contour line of the slope.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
A quick modeling method for a roadbed slope lattice beam construction model comprises the following steps:
step S1: generating a road center line according to the design drawing;
step S2: acquiring a slope contour line and a position thereof, a slope edge line and a position thereof according to a road center line and a design drawing;
step S3: and (5) carrying out batch generation of the roadbed slope lattice beams according to the slope contour lines and the slope edge lines.
Specifically, as shown in fig. 1, the step S1 includes the following steps:
step S101: calculating pile-by-pile coordinate data in road star software through a flat curve and vertical curve element table known in a design drawing, and importing the pile-by-pile coordinate data into an Excel table for processing: and classifying according to the pile number, the X coordinate, the Y coordinate and the Z coordinate, as shown in figure 2.
Step S102: generating points corresponding to coordinates according to pile-by-pile coordinate data in Dynamo software: firstly, placing pile points by pile points, namely importing Excel data by using a date. Importexcel node, extracting coordinate data by using a List. TakeItems node, and generating the coordinate data into points corresponding to coordinates by using a Point. ByCoordinates node;
step S103: the points generated in step S102 are connected in series to generate a road center line: the generated points are concatenated with PolyCurve. ByPoints nodes to generate the road centerline, as shown in FIG. 3.
The step S2 includes the steps of:
step S201: importing a road center line generated by Dynamo operation into a project file corresponding to the revit software, calling out visibility by using a shortcut command VV, and setting the volume as visible;
step S202: importing a dwg format drawing through an insertion command and positioning the imported drawing by using a road center line;
step S203: and picking up slope edge lines by using the imported plane design drawing, and picking up slope contour lines by using the imported slope cross-sectional drawing. The range of the side slope and the gradient and the size of the side slope can be determined through the side slope edge line and the slope surface contour line.
The step S3 includes the steps of:
step S301: running Dynamo program, selecting a road center line by Select Model Element nodes, and drawing two cut-off lines for determining the range of the side slope by the road center line of the passageway: two break lines were selected with the Select Model Element node and information (X, Y, Z coordinates and length) of the two break lines was extracted with the element. Current node, as shown in fig. 4.
Step S302: copying and translating the two cut lines along the upper direction and the lower direction of the Z axis to finally obtain six cut lines: copying and translating the two cut-off lines along the upper and lower directions of the Z axis by using a geometry/transition node, wherein the values of the scheme are 500-400 respectively, the value of the translation is determined according to the height of the project slope, the value of the upward translation is higher than the value of the highest point of the project slope, and the value of the downward translation is lower than the value of the lowest point of the project slope;
step S303: creating entities among the six cut-off lines, and acquiring the length and the position of the side slope to be generated through the intersection line of the entities and the central line of the road: creating an entity by lofting between six cut lines by using a surface. ByLoft node, acquiring coordinate information of two points where a road center line intersects with the generated entity by using a geometry. Interect node, cutting off and deleting the road center line by using the Curve. TrimByParameter node by using the two points as starting points and end points respectively, and then obtaining the length and the position of a side slope to be generated, wherein the position information comprises starting point coordinate information;
step S304: acquiring starting point coordinates of a slope contour line: because the slope contour line drawn by adopting the model line is a plurality of independent line segments, 11 segments are provided in the example, and are named as slope contour line segments for convenience of description, the slope contour line segments are required to be combined to form a complete slope contour line, and then the starting point coordinates of the slope contour line are extracted, specifically: selecting a slope contour line segment by using a Select Model Element node, extracting parameter information of the slope contour line segment by using an element. Current node, connecting a plurality of sections of slope contour line segments into a curve by using a PolyCurve. ByJoinedCurves node, namely, a slope contour line, and obtaining starting point coordinates of the slope contour line by using a Curve. StartPoint node;
step S305: the slope contour line starting point is aligned with the slope starting point, and then the position relation between the slope contour line and the road center line is obtained to determine the final position of the slope: aligning a slope contour line starting point with a slope starting point, rotating the slope contour line around the starting point by using a geometry-rotation node to enable the slope contour line to be perpendicular to a road center line, rotating the slope contour line around the starting point and an X axis by 90 degrees in the example, acquiring parameter information at the slope starting point by using a Curve-PlanAtParameter node, returning a normal line of a plane by using a PlanI node, acquiring an X component and a Y component of a vector by using a vector-X node and a vector-Y node respectively, calculating an included angle between the slope contour line and the road center line by using a vector-Angle Withvector node, and determining a final position of the slope by using a geometry-rotation node by using a curve angle, wherein the curve angle is the included angle degree of +180 degrees;
step S306: creating a curved surface model according to the slope surface: translating the slope surface to the left side of the road (the left side of the road and the right side of the road can be selected at the position) according to the distance of 8 meters (the distance is the distance between the slope foot and the central line of the road) by using a geometry.Translste node, and generating a curved surface model by using a Polysurface.BySweep node along the intercepted central line of the road;
step S307: creating a vertical lattice Liang Moxing: obtaining a curved surface model by using a Polysurface. Surface node, obtaining 11 line segments along the road direction on the curved surface model by using a surface. Getlsoline node, respectively obtaining slope line lengths by using a Curve. Length node, equally dividing the 11 line segments by using a CodeBlock node according to a distance of 4 meters (the value at the position is the center distance between lattice beams), obtaining the coordinates of the points by using a Curve. PointAtSegmentLength node, creating a line segment by using a line. ByStartPointEndPoint node to connect two vertically adjacent points, creating a plane by using a plane. ByOrigin normal node as the center of the line segment, rotating the plane by using a Geometry. Rotate node to enable the plane to be consistent with the slope angle, creating the cross-section length and the width (the value is 0.4 m) of the lattice beams by using a Rectangle. ByWidth node on the plane, and creating a straight-line model by using a Curve. Swingsolid lattice beam to form a straight-section along the lattice beam;
step S308: creating a lateral lattice Liang Moxing: obtaining a curved surface model by using a Polysurface. Surface node, obtaining 10 line segments on the curved surface model along the direction intersecting a road by using a surface. Getlsoline node, respectively obtaining lengths by using a Curve. Length node, equally dividing the 10 line segments by using a CodeBlock node according to a distance of 6 meters (the value of the position is the center distance between lattice beams), obtaining the coordinates of the points by using a Curve. PointAtSegmentLength node, creating a straight line by using a line. ByStartPointEndPoint node to connect two points which are adjacent transversely, creating a plane by using a plane. ByOrigin Normal node as the center of the straight line, rotating the plane by using a Geometry. Rotate node to make the plane consistent with the slope angle, creating the length and the width of the cross section of the lattice beam by using a Rectful. ByWiyLength node (the value of the scheme is 0.4 m), and creating a straight line by using a Curve. SwingWiyLength node to form a solid cross section along the lattice beam sample to complete the creation of a transverse model;
step S309: creating a roadbed side slope lattice Liang Moxing according to the curved surface model, the vertical lattice Liang Moxing and the transverse lattice beam model: selecting a slope edge line by using a SelectModel element node, stretching the slope edge line by using a Curve. ExtrudieAssolid node, wherein the stretching value is a numerical value higher than a slope, the value of the scheme is 5000, performing Boolean operation on the slope edge line and a created curved surface model by using a geometry. Interect node, reserving a model at an intersection part with the slope edge line, cutting off an excess model beyond a range, stretching the slope thickness by using a surface. Thecken node to create a slope model (the value of the scheme is 0.1 m), and integrating the created slope model by using a Python Script node; and (3) performing Boolean operation on the slope model and the created transverse and vertical lattices Liang Jinhang by using geometry, reserving the model at the intersection part, cutting off the redundant model beyond the range, and integrating the created roadbed slope lattice Liang Moxing by using Python Script nodes to finish final creation, as shown in figure 5.
Claims (5)
1. The construction model building method of the roadbed slope lattice beam based on Revit is characterized by comprising the following steps:
step S1: generating a road center line according to the design drawing;
step S2: acquiring a slope contour line and a position thereof, a slope edge line and a position thereof according to a road center line and a design drawing;
step S3: carrying out batch generation of roadbed slope lattice beams according to slope contour lines and slope edge lines;
specifically, the step S2 includes:
step S201: importing the center line of the road into a project file corresponding to the revit software, and setting the volume as visible;
step S202: leading in a road plane design drawing and a slope surface cross section drawing, and positioning by using a road center line;
step S203: picking up slope edge lines by using the imported plane design drawing, and picking up slope contour lines by using the imported slope cross-sectional drawing;
the step S3 includes:
step S301: operating Dynamo programs, selecting a road center line, and drawing two cut-off lines for determining the range of the side slope by the aisle road center line;
step S302: copying and translating the two cut-off lines along the upper direction and the lower direction of the Z axis to finally obtain six cut-off lines;
step S303: creating entities among the six cut-off lines, and acquiring the length and the position of the side slope to be generated through the intersection line of the entities and the central line of the road;
step S304: acquiring starting point coordinates of a slope contour line;
step S305: the method comprises the steps of aligning a slope contour line starting point with a slope starting point, and then obtaining the position relation between the slope contour line and a road center line to determine the final position of the slope;
step S306: creating a curved surface model according to the slope surface: the method comprises the steps of (1) generating a curved surface model along a road center line after a slope surface is translated to the left side or the right side of a road according to a distance A, wherein the distance A is the distance between a slope foot and the road center line;
step S307: creating a vertical lattice Liang Moxing;
step S308: creating a lateral lattice Liang Moxing;
step S309: and creating a roadbed slope lattice beam model according to the slope surface, the vertical lattice Liang Moxing and the transverse lattice beam model.
2. The construction method of the construction model of the roadbed slope lattice beam based on Revit according to claim 1, wherein the step S1 comprises:
step S101: calculating pile-by-pile coordinate data according to a flat curve and vertical curve element table known in a design drawing;
step S102: generating points corresponding to coordinates according to pile-by-pile coordinate data in Dynamo software;
step S103: the points generated in step S102 are connected in series to generate a road center line.
3. The construction method of the construction model of the roadbed slope lattice beam based on Revit according to claim 1, wherein in the step S302: the value of the upward shift is higher than the value of the highest point of the project slope, and the value of the downward shift is lower than the value of the lowest point of the project slope.
4. The construction method of the construction model of the roadbed slope lattice beam based on Revit according to claim 1, wherein the step S307 is specifically: and acquiring the slope line length according to the curved surface model, creating a lattice beam section, and creating a vertical lattice Liang Moxing in the lattice beam section.
5. The construction method of a construction model for a roadbed slope lattice beam based on Revit according to claim 1, wherein the step S303 uses loft to create an entity.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113204812A (en) * | 2020-11-25 | 2021-08-03 | 中铁建工集团有限公司 | Method for creating bridge prestressed pipeline model by adopting Dynamo |
| CN113297649A (en) * | 2021-05-26 | 2021-08-24 | 中建八局第一建设有限公司 | Revit-based rapid construction method for assembly-type municipal bridge construction model |
| CN113434928A (en) * | 2021-05-26 | 2021-09-24 | 南昌大学 | Parametric construction method of complex three-dimensional linear structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113204812A (en) * | 2020-11-25 | 2021-08-03 | 中铁建工集团有限公司 | Method for creating bridge prestressed pipeline model by adopting Dynamo |
| CN113297649A (en) * | 2021-05-26 | 2021-08-24 | 中建八局第一建设有限公司 | Revit-based rapid construction method for assembly-type municipal bridge construction model |
| CN113434928A (en) * | 2021-05-26 | 2021-09-24 | 南昌大学 | Parametric construction method of complex three-dimensional linear structure |
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