CN113779684A - Construction method of roadbed slope lattice beam construction model based on Revit - Google Patents
Construction method of roadbed slope lattice beam construction model based on Revit 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 for realizing rapid modeling of the roadbed slope lattice beam, which comprises the following steps: step S1: generating a road center line according to a design drawing; step S2: acquiring a slope contour line and a position thereof, and a side slope edge line and a position thereof according to a road center line and a design drawing; step S3: and 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, the modeling can be automatically and quickly 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 a roadbed slope lattice beam based on Revit.
Background
The BIM is called a Building Information model (Building Information Modeling), and all Information of an engineering project including Information in a design process, a construction process and an operation management process is integrated into one Building model. The method has eight characteristics of information completeness, relevance, consistency, visualization, harmony, simulation, optimization and graphitism.
Dynamo is a flow-based visual programming software, which is used as a matching plug-in Revit and is used for realizing visual programming, creating a road curve line type and driving component parameterization. And the functions of rapid modeling, parametric design, batch processing of model information and the like are realized.
At present, the conventional modeling method is generally adopted for establishing the roadbed slope lattice beam by adopting Revit: and creating families of transverse lattice beams, vertical lattice beams and the like, determining a slope surface of the slope, placing each member family one by one according to the slope surface gradient, and modifying corresponding parameters. Modeling is very cumbersome and inefficient due to irregular slope.
Disclosure of Invention
The invention provides a rapid modeling method for a roadbed slope lattice beam construction model, aiming at realizing rapid modeling of a roadbed slope lattice beam.
The technical scheme adopted by the invention for solving the problems is as follows:
a construction method of a roadbed slope lattice beam construction model based on Revit comprises the following steps:
step S1: generating a road center line according to a design drawing;
step S2: acquiring a slope contour line and a position thereof, and a side slope edge line and a position thereof according to a road center line and a design drawing;
step S3: and 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 the element table of the known flat curve and vertical curve of the design drawing;
step S102: generating points corresponding to the coordinates according to the 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 road center line into a project file corresponding to the revit software, and setting the size as visible;
step S202: introducing a road plane design drawing and a slope surface section drawing and positioning by using a road center line;
step S203: and picking up the edge line of the side slope by using the imported plane design drawing, and picking up the slope contour line by using the imported slope section drawing.
Further, the step S3 includes:
step S301: running a Dynamo program, selecting a road center line, and drawing two cut-off lines for determining the range of the side slope on the center line of the aisle;
step S302: copying and translating the two cutting lines along the upper direction and the lower direction of the Z axis to finally obtain six cutting lines;
step S303: creating an entity among the six cut-off lines, and acquiring the length and the position of a side slope to be generated through the intersection line of the entity and the central line of the road;
step S304: acquiring a starting point coordinate of a slope contour line;
step S305: after aligning the starting point of the slope contour line with the starting point of the slope, acquiring the position relation between the slope contour line and the road center line to determine the final position of the slope;
step S306: creating a curved surface model according to the slope surface of the side slope;
step S307: creating a vertical lattice beam model;
step S308: creating a transverse lattice beam model;
step S309: and creating a roadbed slope lattice beam model according to the slope surface, the vertical lattice beam model and the transverse lattice beam model.
Further, in step S302: the value of the upward translation is higher than the value of the highest point of the project side slope, and the value of the downward translation is lower than the value of the lowest point of the project side slope.
Further, the step S306 specifically includes: and translating the slope surface of the side slope to the left side or the right side of the road according to the distance A, and then generating a curved surface model along the center line of the road, wherein the distance A is the distance between the slope toe and the center line of the road.
Further, the step S307 specifically includes: and obtaining the length of a slope line according to the curved surface model, creating a lattice beam section, and creating a vertical lattice beam model in the lattice beam section.
Further, the step S303 adopts a lofting creation entity.
Compared with the prior art, the invention has the beneficial effects that: the invention programs revit by using Dynamo, thereby realizing that the modeling can be automatically and rapidly completed only by identifying the slope line. The modeling accuracy is improved; the modeling efficiency is accelerated; the model is beneficial to being modified in batch and reused; the method is beneficial to modeling complex, high and large slopes.
Drawings
FIG. 1 is a flow chart of the rapid modeling method of a roadbed slope lattice beam construction model of the invention;
FIG. 2 is the road centerline pile-by-pile coordinate data extracted by the present invention;
FIG. 3 is a road centerline model created by the present invention;
FIG. 4 is a schematic view of the related constraint lines of the road slope lattice beam of the present invention;
FIG. 5 is a diagram of a generated roadbed slope lattice beam model;
reference numerals: 1. road center line, 2, cut-off line, 3, side slope edge line, 4, slope contour line.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A rapid modeling method for a roadbed slope lattice beam construction model comprises the following steps:
step S1: generating a road center line according to a design drawing;
step S2: acquiring a slope contour line and a position thereof, and a side slope edge line and a position thereof according to a road center line and a design drawing;
step S3: and 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 the coordinate data of each pile in the road star software through the element table of the horizontal curve and the vertical curve known by the design drawing, and importing the coordinate data into an Excel table for processing: and classifying according to the stake number, the X coordinate, the Y coordinate and the Z coordinate, as shown in figure 2.
Step S102: generating points corresponding to the coordinates according to the pile-by-pile coordinate data in Dynamo software: firstly, pile-by-pile points are placed, namely Excel data are imported by using a date.importexcel node, coordinate data are extracted by using a List.TakeItems node, and coordinate data are generated into points corresponding to coordinates by using a Point.ByCoordinates node;
step S103: the points generated in the step S102 are connected in series to generate a road center line: the generated points are connected in series by using PolyCurve. ByPoints nodes to generate a road center line, as shown in FIG. 3.
The step S2 includes the steps of:
step S201: importing the road center line generated by Dynamo operation into a project file corresponding to revit software, calling out the visibility by using a quick command VV, and setting the body size to be visible;
step S202: leading in the dwg format drawing and positioning the leading-in drawing by using a road center line;
step S203: and picking up the edge line of the side slope by using the imported plane design drawing, and picking up the slope contour line by using the imported slope section drawing. The side slope range and the slope gradient and the size of the side slope can be determined through the side slope edge line and the slope contour line.
The step S3 includes the steps of:
step S301: running a Dynamo program, selecting a road center line by using a Select Model Element node, and drawing two cut-off lines for determining the slope range on the center line of the aisle: select two cut lines with Select Model Element node and extract information (X, Y, Z coordinates and length) of the two cut lines with Element. currents node, as shown in fig. 4.
Step S302: copying and translating the two cutting lines along the upper direction and the lower direction of the Z axis to finally obtain six cutting lines: copying and translating the two cutting lines along the upper part and the lower part of a Z axis by using a geometry. Translste node, wherein the values of the scheme are respectively 500-400, the value of the translation at the position is determined according to the height of the project side slope, the value of the upward translation is higher than the value of the highest point of the project side slope, and the value of the downward translation is lower than the value of the lowest point of the project side slope;
step S303: an entity is established among the six cut-off lines, and the length and the position of the side slope to be generated are obtained through the intersection line of the entity and the central line of the road: creating an entity by lofting between six cut-off lines by using surface & ByLoft nodes, acquiring coordinate information of two points where a road center line intersects with the generated entity by using geometry & Intersect nodes, cutting off and deleting the road center line by using a surface & TrimByParameter node as a starting point and an end point respectively, and then obtaining the length and the position of a slope to be generated, wherein the position information comprises the coordinate information of the starting point;
step S304: acquiring the coordinates of the starting point of the slope contour line: because the slope contour line drawn by the model line is a plurality of independent segments, in this example, 11 segments are provided, and the segments are named as slope contour line segments for the convenience of description, the slope contour line segments need to be merged to form a complete slope contour line, and then the coordinates of the starting point 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.
Step S305: after aligning the starting point of the slope contour line with the starting point of the slope, acquiring the position relation between the slope contour line and the road center line 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 a geometric.
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) by using a geometry. Translste node according to the distance of 8 meters (the distance is the distance between the slope feet and the central line of the road), 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 beam model: 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.Getlsolline node, respectively obtaining the length of slope lines by using a Curve.Length node, equally dividing the 11 line segments according to the distance of 4 meters by using a CodeBlock node to obtain points (the value of the point is the central distance between lattice beams), obtaining the coordinates of the points by using a Curve.Point extended Length node, connecting two vertically adjacent points by using a line.ByStartPoint node to create a line segment, creating a plane by using a plane.ByOriginNormal node and taking the starting points of the line segments as the center, rotating the plane by using a Geometry.Rotate node to make the plane consistent with the angle of the slope surface, creating the size and the width of the cross section of the lattice beam by using a Recttangle.ByDThLength node on the plane (both the values are 0.4m), and creating a straight line of the lattice beam along the vertical section by using a curve beam to create a solid straight line;
step S308: creating a transverse lattice beam model: 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.Getlsolline node, obtaining the lengths by using Curve.Length nodes respectively, equally dividing the 10 line segments according to the distance of 6 meters by using a CodeBlock node to obtain points (the value of the point is the central distance between lattice beams), obtaining the coordinates of the points by using Curve.PointSegmentLength nodes, connecting two transversely adjacent points by using a line.ByStartPoint node to create a straight line, creating a plane by using a plane.ByOriginNormal node by using the starting points of the straight lines as the center, rotating the plane by using a Geometry.Rotate node to make the plane consistent with the slope angle of the slope, creating the sectional dimension and the width of the lattice beam by using a Recttangle.ByDThLength node to create a lattice beam structure along the cross section of the lattice beam by using a solid line created by using a Recttane.SweetTLE node to create a solid beam structure (the cross section of the Curie.Sweetherbeam by using 0.ByOryzation beam node to create the solid beam structure);
step S309: and (3) creating a roadbed slope lattice beam model according to the curved surface model, the vertical lattice beam model and the transverse lattice beam model: selecting a side slope edge line by using a selected model element node, stretching the side slope edge line by using a current. extreme Assisolid node, wherein the stretching value is a numerical value higher than that of a side slope, the value of the scheme is 5000, performing Boolean operation on the side slope edge line and the created curved surface model by using a geometry. Intersect node, reserving a model of an intersection part with the side slope edge line, cutting off redundant models outside a range, stretching the slope surface thickness by using a surface. Thicken node to create a side slope surface model (the value of the scheme is 0.1m), and integrating the created side slope surface model by using a thon gradient node; and performing Boolean operation on the slope model and the created transverse and vertical lattice beams by using geometry-intersect nodes, reserving a model of an intersection part, cutting off redundant models outside a range, and integrating the created roadbed slope lattice beam model by using Python Script nodes to complete final creation, as shown in FIG. 5.
Claims (8)
1. A construction method of a roadbed slope lattice beam construction model based on Revit is characterized by comprising the following steps:
step S1: generating a road center line according to a design drawing;
step S2: acquiring a slope contour line and a position thereof, and a side slope edge line and a position thereof according to a road center line and a design drawing;
step S3: and carrying out batch generation of the roadbed slope lattice beams according to the slope contour lines and the slope edge lines.
2. The method for constructing a roadbed slope lattice beam construction model based on Revit as claimed in claim 1, wherein the step S1 includes:
step S101: calculating pile-by-pile coordinate data according to the element table of the known flat curve and vertical curve of the design drawing;
step S102: generating points corresponding to the coordinates according to the 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 method for constructing a roadbed slope lattice beam construction model based on Revit as claimed in claim 1, wherein the step S2 includes:
step S201: importing the road center line into a project file corresponding to the revit software, and setting the size as visible;
step S202: introducing a road plane design drawing and a slope surface section drawing and positioning by using a road center line;
step S203: and picking up the edge line of the side slope by using the imported plane design drawing, and picking up the slope contour line by using the imported slope section drawing.
4. The method for constructing a roadbed slope lattice beam construction model based on Revit as claimed in claim 1, wherein the step S3 includes:
step S301: running a Dynamo program, selecting a road center line, and drawing two cut-off lines for determining the range of the side slope on the center line of the aisle;
step S302: copying and translating the two cutting lines along the upper direction and the lower direction of the Z axis to finally obtain six cutting lines;
step S303: creating an entity among the six cut-off lines, and acquiring the length and the position of a side slope to be generated through the intersection line of the entity and the central line of the road;
step S304: acquiring a starting point coordinate of a slope contour line;
step S305: after aligning the starting point of the slope contour line with the starting point of the slope, acquiring the position relation between the slope contour line and the road center line to determine the final position of the slope;
step S306: creating a curved surface model according to the slope surface of the side slope;
step S307: creating a vertical lattice beam model;
step S308: creating a transverse lattice beam model;
step S309: and creating a roadbed slope lattice beam model according to the slope surface, the vertical lattice beam model and the transverse lattice beam model.
5. The method for constructing a roadbed slope lattice beam construction model based on Revit as claimed in claim 4, wherein in the step S302: the value of the upward translation is higher than the value of the highest point of the project side slope, and the value of the downward translation is lower than the value of the lowest point of the project side slope.
6. The method for constructing the roadbed slope lattice beam construction model based on Revit as claimed in claim 4, wherein the step S306 specifically comprises: and translating the slope surface of the side slope to the left side or the right side of the road according to the distance A, and then generating a curved surface model along the center line of the road, wherein the distance A is the distance between the slope toe and the center line of the road.
7. The method for constructing the roadbed slope lattice beam construction model based on Revit as claimed in claim 4, wherein the step S307 is specifically as follows: and obtaining the length of a slope line according to the curved surface model, creating a lattice beam section, and creating a vertical lattice beam model in the lattice beam section.
8. The method for constructing the roadbed slope lattice beam construction model based on Revit as claimed in claim 4, wherein the step S303 adopts lofting 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 |
|---|---|---|---|---|
| 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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