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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 106
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Paper 51

Investigation of Buildings Collision Based on Mathematic Equation to Evaluate the Impact Force in Non-Linear Viscoelastic Model

H. Naderpour1, R.C. Barros2 and S.M. Khatami1

1Faculty of Civil Engineering, Semnan University, Iran
2Department of Civil Engineering, Faculty of Engineering of the University of Porto, Portugal

Full Bibliographic Reference for this paper
H. Naderpour, R.C. Barros, S.M. Khatami, "Investigation of Buildings Collision Based on Mathematic Equation to Evaluate the Impact Force in Non-Linear Viscoelastic Model", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 51, 2014. doi:10.4203/ccp.106.51
Keywords: impact, impact velocity, dissipated energy, damping..

Building pounding has been recently studied by different researchers around the world to evaluate the impact between two adjacent buildings. Numerical studies are an important part of impact, in which several researchers have tried to simulate the impact by using different formulas. Estimation of the impact force and the dissipated energy depends significantly on some parameters of impact. Mass of bodies, stiffness of spring, coefficient of restitution, damping ratio of dashpot and impact velocity are some known and unknown parameters to simulate the impact and to measure the dissipated energy during collision.

In this paper, the steady state response of single degree of freedom system as a result of the external force has been evaluated. The impact damping ratio from viscose damping was calculated to simulate the nonlinear viscoelastic model and the results of the impact were compared with other similar impact damping ratios, suggested in previous studies. Here, a new equation of motion is presented to obtain the best available estimation of the impact damping ratio and is also simulated to compute the impact force during seismic excitation.

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