Stochastic analysis of the risk of seismic pounding between adjacent buildings

E. Tubaldi, M. Barbato

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Seismic pounding can induce severe damage and losses in buildings. The corresponding risk is particularly relevant in densely inhabited metropolitan areas, due to the inadequate clearance between buildings. In order to mitigate the seismic pounding risk, building codes provide simplified procedures for determining the minimum separation distance between adjacent buildings. The level of safety corresponding to the use of these procedures is not known a priori and needs to be investigated. The present study proposes a reliability-based procedure for assessing the level of safety corresponding to a given value of the separation distance between adjacent buildings exhibiting linear elastic behaviour. The seismic input is modelled as a nonstationary random process, and the first-passage reliability problem corresponding to the pounding event is solved employing analytical techniques involving the determination of specific statistics of the response processes. The proposed procedure is applied to estimate the probability of pounding between linear single-degree-of-freedom systems and to evaluate the reliability of simplified design code formulae used to determine building separation distances. Furthermore, the capability of the proposed method to deal with complex systems is demonstrated by assessing the effectiveness of the use of viscous dampers, according to different retrofit schemes, in reducing the probability of pounding between adjacent buildings modelled as multi-degree-of-freedom systems.
Original languageEnglish
Title of host publicationComputational Methods in Stochastic Dynamics
EditorsM Papadrakakis, G Stefanou, V Papadopoulos
Pages309-326
Number of pages18
Volume26
DOIs
Publication statusPublished - 2013

Publication series

NameComputational Methods in Applied Sciences
PublisherSpringer
Volume26

Keywords

  • seismic pounding
  • stochastic analysis
  • risk analysis

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  • Cite this

    Tubaldi, E., & Barbato, M. (2013). Stochastic analysis of the risk of seismic pounding between adjacent buildings. In M. Papadrakakis, G. Stefanou, & V. Papadopoulos (Eds.), Computational Methods in Stochastic Dynamics (Vol. 26, pp. 309-326). (Computational Methods in Applied Sciences; Vol. 26). https://doi.org/10.1007/978-94-007-5134-7_18