CN109388889B - Method for establishing parameterized prestressed pipe bundle group - Google Patents
Method for establishing parameterized prestressed pipe bundle group Download PDFInfo
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- CN109388889B CN109388889B CN201811175816.2A CN201811175816A CN109388889B CN 109388889 B CN109388889 B CN 109388889B CN 201811175816 A CN201811175816 A CN 201811175816A CN 109388889 B CN109388889 B CN 109388889B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/16—Cables, cable trees or wire harnesses
Abstract
The invention discloses a method for establishing a parameterized prestressed pipe bundle family, which comprises the following steps: dividing the central line of each numbered prestressed pipe bundle into any number of points, and making the positioning coordinates of each point into a point position table; establishing a point location group related to the point location table of the central line of each numbered prestressed pipe bundle according to the point location table made of the central lines of all the prestressed pipe bundles; in the point position family, connecting all points of a point position table of the prestressed pipe bundle family with the same number by using a smooth curve to obtain a central line of the prestressed pipe bundle; and drawing a closed section perpendicular to the lofting path according to the obtained central line of the prestressed tube bundle and taking the central line as the lofting path, wherein the section is a tube bundle section, and the lofting path and the closed section directly generate the prestressed tube bundle. The invention parameterizes the prestressed pipe bundle group, divides the central line of the prestressed pipe bundle into any number of points, and determines the number of the points according to the precision requirement, thereby ensuring the precision of the model.
Description
Technical Field
The invention relates to a prestressed pipe bundle group, and belongs to the technical field of BIM in nuclear power industry.
Background
In the civil construction of the nuclear power station, a large number of prestressed tube bundles are arranged in the containment, and as shown in fig. 3, the transverse prestressed tube bundles of the nuclear island are all 360-degree concentric arc-shaped tubes. In order to ensure that other various items do not collide with the prestressed pipe bundle after the prestressed pipe bundle is hoisted, a prestressed pipe bundle model needs to be accurately established by applying a BIM technology.
The method generally adopted at present is to draw a line segment as a lofting path, as shown by a line 1 in fig. 1, the path is a plane line segment, and a space curve is not easy to generate. And drawing a closed section perpendicular to the line segment as a lofting section method to establish the prestressed tube bundle. The method determines the position of the prestressed pipe bundle group by determining the position of the lofting path, the lofting path is single and invariable, and one lofting path needs to be drawn every time one prestressed pipe is established. When the prestressed pipe bundle is a space curve, the path is difficult to draw, so that the built prestressed pipe bundle is not in accordance with the reality, and the model precision is not ensured.
Disclosure of Invention
The invention mainly aims at the transverse prestressed pipe bundle of the nuclear island, aims to solve the technical problem of the prior art, and provides a parameterized prestressed pipe bundle group establishing method for solving the difficult problem of efficiently and accurately establishing the prestressed pipe bundle group.
In order to solve the technical problems, the invention adopts the technical scheme that:
a method for establishing a parameterized prestressed pipe bundle family comprises the following steps:
dividing the central line of each numbered prestressed pipe bundle into any number of points, and making positioning coordinates (N, R and H) of each point into a point position table, wherein N represents an angle corresponding to the serial number of the point, R represents the radius of the point, and H represents the elevation of the point;
establishing a point location group related to the point location table of the central line of each numbered prestressed pipe bundle according to the point location table made of the central lines of all the prestressed pipe bundles:
wherein A is a point position family, n is the number of the prestressed pipe bundles, S i A point location table of the ith prestressed pipe bundle;
in the established point position family, connecting all points of a point position table of the prestressed pipe bundle family with the same number by using a smooth curve to obtain a central line of the prestressed pipe bundle;
and drawing a closed section perpendicular to the lofting path according to the obtained central line of the prestressed tube bundle and taking the central line as the lofting path, wherein the section is a tube bundle section, and the lofting path and the closed section directly generate the prestressed tube bundle.
And establishing the point location family and a point location table containing coordinates (N, R and H) of each point by Revit software.
The point location family established by Revit software is associated with the point location table through a table look-up function of the Revit software, and the point location table is imported into the point location family through the table look-up function, so that coordinates of each point in the point location family correspond to coordinates in the point location table one by one.
The table look-up function carried by Revit software is as follows: (size _ lookup name, "R",10000mm, N)) and (size _ lookup name, "H",10000mm, N), N, R, H in the lookup function corresponds to one of the coordinates of each point.
If the point of the angle corresponding to the point location table cannot be found in the point location family, both R and H are 10000mm (the numerical value has no specific meaning), and the function can verify whether each point in the point location family corresponds to one in the point location table. The point family is used as a template for generating a plurality of numbered prestressed tube bundles. And after the guide table is finished, connecting all points by using a smooth curve to obtain the central line of the prestressed pipe bundle.
Technical effects
The parameterized prestressed tube bundle group divides the prestressed tube bundle into any number of points, and adopts a mode of positioning a plurality of space coordinate points. The point on the central line of the prestressed pipe beam can be obtained by importing the data of the middle point of the point location table into the point location group, the point location group and the point location table are separated and correlated, and the method has the advantages of parameterization and intellectualization.
The parameterized prestressed pipe bundle family aims to solve the technical problem of overcoming the defects existing in the establishment of the family by the current lofting (section and lofting path); when the prestressed pipe bundle group established by the current lofting is used for drawing a lofting path, line segments are directly drawn, a space curve is not easy to form, and the positions of all points on the line are fixed. The position of the position is located in the form of coordinates, then all the points are connected to generate the lofting path, and the lofting path can be changed along with the change of the points, and numerous prestressed pipe bundle families with different shapes can be established by using the path as a template. The modeling efficiency and accuracy of the prestressed pipe bundle model can be greatly improved.
Drawings
FIG. 1 is a lofting path for a family of prestressed tube bundles, drawn in current lofting and the present invention, respectively;
FIG. 2 is a family of prestressed pipe bundles plotted against current loft and the present invention, respectively;
FIG. 3 is a family of prestressed pipe bundles numbered 52 #;
FIG. 4 is a cross-sectional view of the "family type" tab in the point family in the Revit software.
Detailed Description
The parameterized prestressed pipe bundle group adopts a space coordinate point positioning mode, and shows the flexibility of the parameterized prestressed pipe bundle group.
The process for establishing the parameterized prestressed pipe bundle group comprises the following operation steps:
step 1: establishing a point position family, positioning 181 points in a point position table one by one in the self-adaptive family, carrying out size marking on the angle, the located radius and the elevation of each point, giving a size marking function, and taking the 181 points as a template.
Step 2: compiling a point position table of each number of prestressed pipes, wherein the specific method comprises the following steps:
the method is characterized in that each numbered prestressed pipe takes 45 degrees as a section, 181 points are counted in each 0.25-degree point and the 1 st point of the next section along the central line of each numbered prestressed pipe, positioning coordinates (N, R and H) of each point are recorded to form a point position table, N represents the serial number of the point, R represents the radius of the point, and H represents the elevation of the point.
And 3, step 3: and (4) guiding the point location table into a point location family, wherein the positions of all points in the point location family correspond to those in the point location table one by one, and connecting all points corresponding to the prestressed pipes with different numbers to obtain the central line of the prestressed pipe bundle.
And 4, step 4: and obtaining the prestressed pipe bundle family through lofting.
Example one
In this embodiment, a section of 135 ° to 180 ° in the 52# transverse prestressed pipe bundle is taken, a point location group is opened by Revit software, one option of a "management lookup table" is provided in a "group type" option card, the point location table to be imported can be selected by clicking the "management lookup table", and the point location table named "52#135-180" is selected and imported. The coordinates of the 52#135-180 dot bit table are shown in Table 1:
during importing, the column value of 'table look-up name' is required to be consistent with the point location table name, 181 points on a section with the serial number of 52#, 135-180 degrees can be obtained at the moment, all the points are connected through a smooth curve to obtain the center line of the prestressed pipe bundle and serve as a lofting path of the prestressed pipe bundle, and the lofting path and the closed section are used for creating the prestressed pipe bundle when the closed section perpendicular to the lofting path is made.
The line 2 shown in fig. 1 is a point location group generated according to a point location table, the points in the graph are connected through a smooth curve to obtain the center line of the prestressed pipe bundle group, the positions of the points can be changed according to the change of coordinates in the point location table before the points are connected into a line, and the positions of the points are matched with the actual shape of the prestressed pipe bundle after the points are connected into the line. The pipe 1 and the pipe 2 shown in the figure 2 are respectively based on the current lofting and the model established by the invention, and the comparison can show that the invention has the characteristics of flexibility, high accuracy and high modeling efficiency.
Practice proves that the parameterized prestressed pipe bundle group has the following advantages:
the accuracy is guaranteed, the parameterized prestressed pipe bundle group divides the central line of the prestressed pipe bundle into any number of points, and the number of the points is determined according to the accuracy requirement, so that the accuracy of the model can be guaranteed.
The parameterized prestressed tube bundle family has high efficiency, adopts a fixed-point mode, fully utilizes the flexibility of points, and can establish a plurality of prestressed tube bundles with different numbers in the same family.
Claims (8)
1. A method for establishing a parameterized prestressed pipe bundle family is characterized by comprising the following steps: the method comprises the following steps:
dividing the central line of each numbered prestressed pipe bundle into any number of points, and making positioning coordinates (N, R and H) of each point into a point position table, wherein N represents an angle corresponding to the serial number of the point, R represents the radius of the point, and H represents the elevation of the point;
establishing a point location group related to the point location table of the central line of each numbered prestressed pipe bundle according to the point location table made of the central lines of all the prestressed pipe bundles:
wherein A is a point position family, n is the number of the prestressed pipe bundles, and Si is a point position table of the ith prestressed pipe bundle;
in the established point position family, connecting all points of a point position table of the prestressed pipe bundle family with the same number by using a smooth curve to obtain a central line of the prestressed pipe bundle;
and drawing a closed section perpendicular to the lofting path according to the obtained central line of the prestressed tube bundle and taking the central line as the lofting path, wherein the section is a tube bundle section, and the lofting path and the closed section directly generate the prestressed tube bundle.
2. The method of establishing a family of parameterized prestressed pipe bundles according to claim 1, characterized in that: and establishing the point location family and a point location table containing coordinates (N, R and H) of each point by Revit software.
3. The method of establishing a family of parameterized prestressed pipe bundles according to claim 2, characterized in that: the point location family established by Revit software is associated with the point location table through a table look-up function of the Revit software, and the point location table is imported into the point location family through the table look-up function, so that coordinates of each point in the point location family correspond to coordinates in the point location table one by one.
4. The method of establishing a family of parameterized prestressed pipe bundles according to claim 3, characterized in that: the table look-up function carried by Revit software is as follows: (size _ lookup name, "R",10000mm, n)) and (size _ lookup name, "H",10000mm, n), N, R, H in the lookup function corresponds to one-to-one in each point coordinate.
5. The method for building a family of parameterized prestressed pipe bundles according to any one of claims 1 to 4, characterized in that: dividing the central line of each numbered prestressed pipe bundle into a plurality of M sections, wherein the M sections form M point position tables, and M = 2-20.
6. The method of building a family of parameterized prestressed pipe bundles according to claim 5, characterized in that: 50-500 points are taken from each section to make a point bit table.
7. The method of building a family of parameterized prestressed pipe bundles according to claim 5, characterized in that: m =8.
8. The method of building a family of parameterized prestressed pipe bundles according to claim 7, characterized in that: taking 180 points in each segment, and making the 180 points and the first point of the next segment into a point bit table.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108090299A (en) * | 2017-12-29 | 2018-05-29 | 自贡华西能源工业有限公司 | A kind of photo-thermal heat dump prestressing force tube bank or tube panel play the design method of arch shape in advance |
| CN108229001A (en) * | 2017-12-29 | 2018-06-29 | 自贡华西能源工业有限公司 | A kind of photo-thermal heat dump tube bank or the prestressed applying method of tube panel |
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| FR2844587B1 (en) * | 2002-09-17 | 2005-08-05 | Framatome Anp | METHOD FOR PRE-STRENGTHENING TUBES OF A HEAT EXCHANGER WITH PRECISE ADJUSTMENT OF THE PRECONTROLLER |
| CN101365381A (en) * | 2005-12-09 | 2009-02-11 | 弹性医疗系统有限责任公司 | Configurable, flexible apparatus and method for personal health monitoring and delivery |
| CN101380531A (en) * | 2007-09-03 | 2009-03-11 | 张民良 | Flexible tube side-by-side high-speed, high-pressure squeezing and drying solid-liquid treatment device |
| US8087247B2 (en) * | 2008-05-15 | 2012-01-03 | Ronald Edward Graf | Heat engine/ heat pump using centrifugal fans |
| CN104865086B (en) * | 2015-05-29 | 2018-06-01 | 长沙理工大学 | A kind of lever load system and assemble method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108090299A (en) * | 2017-12-29 | 2018-05-29 | 自贡华西能源工业有限公司 | A kind of photo-thermal heat dump prestressing force tube bank or tube panel play the design method of arch shape in advance |
| CN108229001A (en) * | 2017-12-29 | 2018-06-29 | 自贡华西能源工业有限公司 | A kind of photo-thermal heat dump tube bank or the prestressed applying method of tube panel |
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