Abstract
Seismic base isolation is achieved via inserting flexible isolator element between the foundation and superstructure which lengthens the vibration period and increases the energy dissipation. Values adopted for uncertain parameters in earthquake engineering deviate from their nominal values. The stochastic response analysis of the base-isolated building is studied considering uncertainties in the characteristics of the earthquakes. Artificial acceleration time histories developed using probabilistic ground motion model are used in the study. The uncertainties in peak ground acceleration, frequency content, and time duration are considered to develop 5,000 artificial acceleration time histories. A bilinear model of the isolator described by its characteristic strength, post-yield stiffness, and yield displacement is used, and the stochastic response is calculated by using an ensemble of generated earthquakes. The study also presents the results of seismic reliability analysis of the five-storey base-isolated building. The first-order reliability method (FORM) and Monte Carlo simulation (MCS) method are used to evaluate the probability of failure associated with the top floor acceleration response of the building. The top floor acceleration response statistics are used in the performance function considering 0.3 g as a maximum allowable acceleration, and the probability of failure is evaluated. The probability of failure evaluated using the FORM is fairly in good agreement with the value obtained by the MCS.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Housner GW, Jennings PC (1964) Generation of artificial earthquakes. J Eng Mech (ASCE) 90:113–150
Jacob MC, Marburg S, Matsagar VA (2010) A probabilistic method to generate artificial earthquake ground motions. In: 14th symposium on earthquake engineering, Roorkee, India
Jangid RS, Datta TK (1995) Seismic behavior of base-isolated buildings: a state-of-the-art review. Struct Build 110(2):186–203
Kelly JM (1986) Aseismic base isolation: review and bibliography. Soil Dyn Earthq Eng 5(4):202–216
Naeim F, Kelly JM (1999) Design of isolated structures, from theory to practice. Wiley, New York
Rezaeian S, Kiureghian AD (2008) A stochastic ground motion model with separable temporal and spectral nonstationarities. Earthq Eng Struct Dyn 37:1565–1584
Rackwitz R, Fiessler B (1978) Structural reliability under combine random load sequences. Comput Struct 9:489–494
Wen YK (1976) Method for random vibrations of hysteretic systems. J Eng Mech (ASCE) 102:249–263
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2013 Springer India
About this paper
Cite this paper
Jacob, M.C., Dodagoudar, G.R., Matsagar, V.A. (2013). Seismic Reliability Analysis of Base-Isolated Buildings. In: Chakraborty, S., Bhattacharya, G. (eds) Proceedings of the International Symposium on Engineering under Uncertainty: Safety Assessment and Management (ISEUSAM - 2012). Springer, India. https://doi.org/10.1007/978-81-322-0757-3_87
Download citation
DOI: https://doi.org/10.1007/978-81-322-0757-3_87
Published:
Publisher Name: Springer, India
Print ISBN: 978-81-322-0756-6
Online ISBN: 978-81-322-0757-3
eBook Packages: EngineeringEngineering (R0)