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Linear engineering structure rapid BIM modeling method based on finite element grid division

A grid division and engineering structure technology, applied in the engineering structure design, analysis and BIM fields, can solve the problems of failure to consider the numerical analysis requirements, unable to form a general method, etc., to avoid grid division failure and save artificial hexahedral network Efficient handling of work and a wide range of applications

Active Publication Date: 2019-08-30
GUANGXI COMM PLANNING SURVEYING & DESIGNING INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The above three-dimensional parametric modeling is generally designed according to the design and use requirements of the structure, without considering the requirements of numerical analysis, and needs to be redefined for different linear structure types, so it cannot form a general method

Method used

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  • Linear engineering structure rapid BIM modeling method based on finite element grid division
  • Linear engineering structure rapid BIM modeling method based on finite element grid division
  • Linear engineering structure rapid BIM modeling method based on finite element grid division

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Embodiment Construction

[0050] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0051] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "left side", "right side", "upper", "lower" are based on the orientations or positional relationships shown in the accompanying drawings, and are only For the purpose of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, "first", "second" and the like do not represent components In terms of importance, "longitudinal" refers to a direction along an axis, and "transverse" refers to a direction perpendicular to the axis, and thus should not be construed as limiting the invention. The specific dimensions used i...

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Abstract

The invention discloses a linear engineering structure rapid BIM modeling method based on finite element grid division. The method comprises the steps of 1, setting a working environment; 2, inputtingthe design parameters; 3, longitudinally segmenting the structure; 4, cutting a characteristic cross section; 5, marking and drawing a control point on the longitudinal segmentation surface at the most front end; 6, marking and drawing a control point on the next longitudinal segmentation surface; 7, generating hexahedrons on the front longitudinal segmentation surface and the rear longitudinal segmentation surface; 8, generating a discontinuous component; 9, generating a structure entity; 10, carrying out model output. According to the present invention, the finite element analysis and the mesh division are considered in the parametric modeling process, the entity is established in the mode that points, lines and faces are arranged from low to high, the complex geometry with the topological association relation can be generated, the seamless combination of parametric BIM modeling and finite element analysis is achieved, and the high-quality finite element hexahedral mesh conversion is conducted. The method can be applied to all linear structures and has a wider application range.

Description

technical field [0001] The invention relates to engineering structure design, analysis and related fields of BIM technology, in particular to a fast BIM modeling method of linear engineering structure based on finite element grid division. Background technique [0002] BIM software platform technology is a general-purpose three-dimensional modeling software platform, such as MicroStation, CATIA, Revit, etc., which can easily establish a structural three-dimensional model, and carry out construction process and operation and maintenance management applications based on the model's connection with relevant engineering information. [0003] Although the above-mentioned BIM software platform has strong graphics processing and modeling capabilities, the model cannot be seamlessly integrated with the finite element analysis software. When the BIM model is imported into the finite element software, topological geometric relationship errors often occur, and the meshing quality is low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/10
CPCG06T17/10G06F30/13G06F30/23Y02E60/00
Inventor 周铮王长海梁才龙波覃延春彭欣侯泽群林婧周东迎
Owner GUANGXI COMM PLANNING SURVEYING & DESIGNING INST
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