Loading...

The effect of soil–structure interaction on the seismic risk to buildings

Khosravikia, F ; Sharif University of Technology | 2018

954 Viewed
  1. Type of Document: Article
  2. DOI: 10.1007/s10518-018-0314-z
  3. Publisher: Springer Netherlands , 2018
  4. Abstract:
  5. This paper studies the effect of soil–structure interaction (SSI) on the seismic risk estimates of buildings. Risk, in this context, denotes the probability distribution of seismic monetary loss due to structural and nonstructural damage. The risk analysis here uncovers the probability that SSI is beneficial, detrimental, or uninfluential on seismic losses. The analyses are conducted for a wide range of buildings with different structural systems, numbers of stories, and foundation sizes on various soil types. A probabilistic approach is employed to account for prevailing sources of uncertainty, i.e., those in ground motion and in the properties of the soil–structure system. In this approach, probabilistic models are employed to predict the response, damage, and repair cost of buildings. To properly account for the ground motion uncertainty, a suite of nearly 7000 accelerograms recorded on soil is employed. It is concluded that structures on very soft soils are extremely likely to incur smaller losses due to SSI, which is in line with the common belief that SSI is a favorable effect for such systems. However, the results for buildings on moderately soft soils reveal a considerable probability, up to 0.4, that SSI has an adverse effect on the structure and increases the seismic losses. © 2018, Springer Science+Business Media B.V., part of Springer Nature
  6. Keywords:
  7. Monetary loss ; Monte Carlo sampling ; Seismic risk ; Soil–structure interaction ; Structural and nonstructural damage ; Buildings ; Maintenance ; Monte Carlo methods ; Probability distributions ; Risk analysis ; Risk assessment ; Seismology ; Ground motion uncertainty ; Non-structural damage ; Probabilistic approaches ; Probabilistic models ; Sources of uncertainty ; Structural systems ; Soils ; Building ; Currency devaluation ; Earthquake damage ; Ground motion ; Monte Carlo analysis ; Probability density function ; Sampling ; Seismicity ; Soft soil ; Soil type ; Soil-structure interaction
  8. Source: Bulletin of Earthquake Engineering ; Volume 16, Issue 9 , 2018 , Pages 3653-3673 ; 1570761X (ISSN)
  9. URL: https://link.springer.com/article/10.1007/s10518-018-0314-z