Parametric modeling method and system for steel structure bridge model based on BIM technology

A parametric modeling and bridge model technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of increasing the manufacturing cycle of detailed drawing conversion, reducing model quality, accuracy, and unfavorable rapid and accurate model establishment , to achieve the effect of shortening the manual drawing cycle, speeding up drawing, efficient design algorithm and interactive control mode

Inactive Publication Date: 2018-11-13
CHINA RAILWAY SHANQIAO GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing methods are not conducive to the rapid and accurate establishment of models, reducing the quality and accuracy of models, and increasing the manufacturing cycle of detail conversion

Method used

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  • Parametric modeling method and system for steel structure bridge model based on BIM technology
  • Parametric modeling method and system for steel structure bridge model based on BIM technology
  • Parametric modeling method and system for steel structure bridge model based on BIM technology

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Embodiment 1

[0040] see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , a parametric modeling method for a steel structure bridge model based on BIM technology provided in Embodiment 1 of the present invention, such as figure 1 As shown, the method includes:

[0041] S101: Using the relative auxiliary line of the part to be modeled as a reference line, set constraint variables in an interactive manner, and detect the data format; specifically, the relative auxiliary line of the part to be modeled includes the center of the part, the center of the component, and the relative center of the unit component Wire.

[0042] S102: Calculate the geometric form of the reference line and the edge of the part to be modeled, and confirm the relative constraint position size of the polygon and the arc; specifically, the geometric form includes relative distance, length, angle, and arc radius. Confirm the relative constrain...

Embodiment 2

[0063] Corresponding to the parametric modeling method for a steel structure bridge model based on BIM technology provided in Embodiment 1 of the present invention, Embodiment 2 of the present invention also provides a parametric modeling system for a steel structure bridge model based on BIM technology; see Figure 11 , the system can include:

[0064] The reference line determination unit 201 is used to use the relative auxiliary line of the part to be modeled as a reference line, set constraint variables and detect data formats in an interactive manner;

[0065] A position size confirmation unit 202, configured to calculate the geometric form of the reference line and the edge of the part to be modeled, and confirm the relative constrained position size of the polygon and the arc;

[0066] A deletion unit 203, configured to delete unnecessary auxiliary lines;

[0067] Part model assembly unit 204, configured to automatically draw the part model required by the part to be m...

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Abstract

The invention discloses a parametric modeling method and system for a steel structure bridge model based on BIM technology. The parametric modeling method for the steel structure bridge model based onthe BIM technology comprises the following steps: setting a constraint variable and checking the data format through an interaction mode with the relative auxiliary line of a part to be modeled as the reference line; calculating the geometric form of the reference line and the edge of the part to be modeled, and confirming the relative constrained position size of a polygon and an arc; deleting unnecessary auxiliary lines; automatically drawing the part model required for the part to be modeled, and completing the parametric drawing of the part model; and setting the relevant properties of the part model. The parametric modeling method for the steel structure bridge model based on the BIM technology provided by the application can be used to develop a parametric design software for the steel bridge model in the field of deepening detailed drawings of steel structure bridges; and the refined parametric drawings method is adopted, the original drawing thinking is improved, the efficientdesign algorithm and interactive management and control mode are used, therefore, and the project design and manufacturing cycle is shortened.

Description

technical field [0001] The invention relates to the technical field of steel structure bridge manufacturing, in particular to a method and system for parametric modeling of a steel structure bridge model based on BIM technology. Background technique [0002] Due to the particularity of the bridge structure, the existing software has not developed specialized and modular modeling functions for the steel structure bridge manufacturing industry. Such as Dassault's CATIA, Tianbao's Tekla Structure, etc., are mainly used in the design of machinery, molds, high-rise buildings, and industrial plants. For the field of steel structure bridge manufacturing, it is impossible to carry out professional design and manufacture, and it is urgent to develop parametric software for steel bridge design and manufacture based on the existing platform. At present, the establishment of component models of steel structure bridges requires the definition of individual elements. After forming basic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/13
Inventor 张帆孙树松李华冰尹春明乔新旺
Owner CHINA RAILWAY SHANQIAO GRP CO LTD
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