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Nonlinear collision analysis of heavy trucks onto steel highway guard fences

  • Itoh, Yoshito (Center for Integrated Research in Science and Engineering, Nagoya University) ;
  • Liu, Chunlu (Center for Integrated Research in Science and Engineering, Nagoya University) ;
  • Usami, Koichi (Department of Civil Engineering, Nagoya University)
  • Published : 2001.11.25

Abstract

The design specifications of guard fences in Japan were reexamined and the revised specifications were implemented from April 1999. Because of the huge consumption in time and cost to test the performances of full-scale guard fences in the field, some assumptions are adopted while modifying the design specifications, and numerical analyses are necessary to confirm the impact performance and safety level of new types of steel highway guard fences. In this study, the finite element models are developed for the heavy trucks and steel highway guard fences to reenact their behaviors, and the solution approach is carried out using nonlinear dynamic analysis software of structures in three dimensions (LS-DYNA). The numerical simulation results are compared with the full-scale on-site testing results to verify the proposed analysis procedure. The collision process is simulated and it is also made possible to visualize the movement of the truck and the performances of guard fences. In addition, the energy shift of the truck kinetic energy to the truck and guard fence Internal energy, and the energy absorption of each guard fence component are studied for the development of a new design methodology of steel highway guard fences based on the energy absorption capacity.

Acknowledgement

Supported by : Foundation of Science Research

References

  1. Hallquist J. (1999), LS-DYNA User's Manual (Version 950), Livermore Software Technology Corporation, The Japan Research Institute LTD.
  2. Itoh, Y., Mori, M., and Liu, C. (1999), "Numerical analysis on high capacity steel guard fences subjected to vehicle collision impact", The Fourth Int. Conf. on Steel and Aluminium Structures, Espoo, Finland, June, 53- 60.
  3. Itoh, Y., Ohno, T., and Mori, M. (1998), "Numerical analysis on behavior of steel columns subjected to vehicle collection impact", J. Struct. Eng., JSCE, 40A, 1531-1542 (in Japanese).
  4. JRA (1999), "Design specifications of guard fences", Japan Road Association, Tokyo (in Japanese).
  5. Kobayashi, K., Okuda, M., Ishikawa, N., and Hiruma, Y. (1994), "Impact response analysis for the model test of the shock softening type precast concrete guardfense", J. Struct. Eng., JSCE, 44A, 1531-1542 (in Japanese).
  6. Miller, P., and Carney, J. (1997), "Computer simulations of roadside crash cushion impacts", J. Transp. Eng., ASCE, 123(5), 370-376. https://doi.org/10.1061/(ASCE)0733-947X(1997)123:5(370)
  7. Miyamoto, A., King, M., and Masui, H. (1991), "Numerical modeling of impact load characteristics acting on structures", J. Struct. Eng., JSCE, 37A, 1531-1542 (in Japanese).
  8. Reid, J., Sicking, D., and Bligh, R. (1998), "Critical impact point for longitudinal barriers", J. Transp. Eng., ASCE, 124(1), 65-72. https://doi.org/10.1061/(ASCE)0733-947X(1998)124:1(65)
  9. Reid, J., Sicking, D., and Paulsen, G. (1996), "Design and analysis of approach terminal sections using simulation", J. Transp. Eng., ASCE, 122(5), 399-405. https://doi.org/10.1061/(ASCE)0733-947X(1996)122:5(399)
  10. Takahashi, Y., Ohno, T., Ohta, T., and Hino, S. (1991), "Strain-rate effects on elasto-plastic behaviors of reinforced concrete beams under impact loadings", J. Struct. Eng., JSCE, 37A, 1567-1580 (in Japanese).
  11. Traffic Statistics (1998), Institute for Traffic Accident Research and Data Analysis, Tokyo (in Japanese).
  12. TRB (1993), "Recommended procedures for the safety performance evaluation of highway features", NCHRP Report 350, Transp. Research Board, Washington.
  13. Wekezer, J., Oskard, M., Logan, R., and Zywicz, E. (1993), "Vehicle impact simulation", J. Transp. Eng., ASCE, 119(4), 598-617. https://doi.org/10.1061/(ASCE)0733-947X(1993)119:4(598)
  14. WRI (1992), "A study on the steel guard fences", Research Report No. 74, Public Works Research Institute, Tsukuba (in Japanese).

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