Modeling of Bridge Collapse in Virtual Scene Based on Finite Element Simulation

Abstract:

To simulate bridge collapse realistically and assist the investigation of bridge collapse accidents, a modeling method of bridge collapse in Open Scene Graph (OSG) graph engine based on Finite element (FE) simulation is proposed. For FE simulation using 3D solid elements, the main questions of modeling, such as scene hierarchy, drawing method and texture mapping, are discussed. A study case shows the bridge model in this paper is with realistic graphics, render efficiency and simulation controllability. The 3D virtual scene simulation using the modeling method proposed in this paper has the same accuracy as FE simulation, but is more realistic and complete than FE simulation and provides a graphic support for the analysis of bridge collapse accidents.

• Periodical: Applied Mechanics and Materials (Volumes 88-89)
• Pages: 718-722
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.88-89.718
• Online since: August 2011
• Authors: Zhen Xu, Ai Zhu Ren, Xin Zheng Lu
• Keywords: Bridge Collapse, Finite Element, Open Scene Graph (OSG), Virtual Scene Model

References

[1] M.X. Chen: Highway Engineering, Vol. 33, No. 3 (2008), p.1.

[2] S. Zhu, D. Levinson, H. Liu and K. Harder: Transportation Research, Vol. 44, No. 10 (2010), p.771.

[3] L.M. Sun, D. Qing and L.C. Fan: China Civil Engineering Journal, Vol. 35, No. 6 (2002), p.53.

[4] J.C. Liu and Y.N. Gu: Engineering Mechanics, Vol. 20, No. 5(2003), p.155.

[5] B. Morten and C. Stephane: Computer Graphics Forum, Vol. 15, No. 3 (2003), p.57.

[6] X.Y. Hu, H.F. Li, Y.M. Guo and C.F. Song: Journal of Computer-aided Design & Computer Graphics, Vol. 19, No. 9(2007), p.1166.

[7] W. Yu and W.Y. Wu: Chinese Journal of Stereology and Image Analysis, Vol. 6, No. 2(2001), p.122.

[8] J.T. Chen, M. Xiao and Y.L. Zheng: Chinese Journal of Rock Mechanics and Engineering, Vol. 25, No. 5 (2006), p.1015.