Numerical simulation on the seismic performance of PC utility poles on shinkansen viaduct using AEM and FEM
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The 2011 Tohoku earthquake caused severe damage to various infrastructures in the Tohoku region of Japan. Particularly, prestressed concrete (PC) utility poles on Shinkansen viaducts sustained significant damage, leading to prolonged service disruptions. To better understand the structural behavior and failure mechanisms of these poles, JR East company initiated a series of experimental investigations to examine their bending capacity and failure modes under cyclic loading. This research aims to numerically simulate the performance of the tested PC utility poles using Applied Element Method (AEM) and Finite Element Method (FEM). The simulation results demonstrate that both AEM and FEM effectively reproduce the load-displacement relationship observed in the test. Additionally, this study discusses the material models employed in simulations, considering the limitations inherent in numerical modeling. The findings provide critical insights into the structural performance of the poles under seismic loading and offer useful numerical tools for the development of retrofitting strategies.
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[1] S. Nozawa et al.,"Damage and restoration of the railway structures casued by the 2011 off the Pacific coast of Tohoku Earthquake (in Japanese)", Geotechnical Engineering Journal, vol. 7, no. 1, pp. 127-137, 2012.
[2] T. Sasaki et al., "Earthquake damage to concrete utility poles for Shinkansen and remedial measure (in Japanese)", Concrete Journal, vol. 53, no. 7, pp. 622-628, 2015.
[3] Design Standards for Railway Structures and Commentary: Seismic Design, Railway Bureau, MLIT and Railway Technical Research Institute, 2012.
[4] M. Iwata, H. Kusano, and D. Tsukishima, "Seismic reinforcement method for PC utility poles (in Japanese)", in Proceedings of the Japan Concrete Institute, Japan, 2013, pp. 1087-1092.
[5] Precast prestressed concrete products, JIS A 5373, Japanese Industrial Standard, 2016.
[6] H. Tagel-Din, and K. Meguro, "Applied Element Method for Dynamic Large Deformation Analysis of Structures", Doboku Gakkai Ronbunshu, vol. 2000, no. 661, pp. 1-10, 2000.
[7] K. Meguro, and H. Tagel-Din, "AEM used for large displacement structure analysis", Journal of Natural Disaster Science, vol. 24, pp. 25-34, 2002.
[8] K. Maekawa, and H. Okamura, "The Deformational Behavior and Constitutive Equation of concrete Based on the Elasto-Plastic and Fracture Model", Journal of the Faculty of Engineering, The University of Tokyo, vol. 37, no. 2, pp. 253-328, 1983.
[9] Standard Specifications for Concrete Structures - Design, JSCE Guidelines for Concrete No. 16, 2007.
[10] M. P. Collins and D. Mitchell, Prestressed concrete structures, Prentice Hall, 1991.
[11] D. Ristic, "Stress-Strain Based Modeling of Hysteretic Structures under Earthquake Induced Bending and Varying Axial Loads", Reseach Report No. 86-ST-01, 1986.
[12] M. Onodera, et al., "Experimental Study on Seismic Behavior of Reinforced PC Power Pole (in Japanese)", in Proceedings of the Japan Concrete Institute, Japan, 2024, pp. 181-186.
[13] K. Maekawa, H. Okamura, and A. Pimanmas, Non-Linear Mechanics of Reinforced Concrete, Taylor & Francis, 2003.
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