Method for 3D parameterization modeling of high-speed railroad bridge under virtual reality environment

Abstract

The invention discloses a method for 3D parameterization modeling of a high-speed railroad bridge under a virtual reality environment, wherein a 3D module of a bridge can be quickly and accurately established based on the characteristics of bridge assemblies and the interaction principle between the assemblies, and a convenient model editing and modifying method is provided, so as to provide a powerful technical support for improving the design level of the high-speed railroad bridge. The technical steps of the 3D parameterization modeling of the high-speed railroad bridge under the virtual reality environment includes S1-beam 3D parameterization modeling, S2-railroad track 3D parameterization modeling, S3-bridge deck system 3D parameterization modeling, S4-pier 3D parameterization modeling, S5-combination of the beam, the railroad track, the bridge deck system and the pier to form the bridge 3D model, and S6-introduction of the bridge model into the virtual environment.

Description

technical field [0001] The invention relates to a railway design modeling technology, in particular to a three-dimensional parametric modeling technology of a high-speed railway bridge. Background technique [0002] In the process of high-speed railway survey and design, bridges are an important element of railway design, and their design quality directly affects the safety of railway lines. Establish a real 3D model of the bridge according to the design drawing, and place it in the real geographical environment, which can preview the post-construction effect, check the design error, and improve the quality of railway survey and design. At present, there have been some research results in 3D modeling of bridges in my country. These researches are all aimed at specific bridges. There are two problems in directly applying them to 3D modeling of high-speed railway bridges: there is no interface for railway track design; parameter design is not suitable for high-speed railways. ...

AI Technical Summary

Problems solved by technology

At present, there have been some research results in 3D modeling of bridges in my country. These researches are all aimed at specific bridges. There are two problems in directly applying them to 3D modeling of high-speed railway bridges: there is no interface for railway track design; parameter design is not suitable for high-speed railways. Railway Bridge Modeling

Using existing achievements to establish a 3D model of a high-speed railway bridge is complex to operate and requires a large number of manual editing, resulting in low production efficiency

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