DOI QR코드

DOI QR Code

Performance-based design of seismic isolated buildings considering multiple performance objectives

  • Morgan, Troy A. (University of California) ;
  • Mahin, Stephen A. (University of California)
  • 투고 : 2007.03.15
  • 심사 : 2007.12.14
  • 발행 : 2008.09.25

초록

In the past 20 years, seismic isolation has see a variety of applications in design of structures to mitigate seismic hazard. In particular, isolation has been seen as a means of achieving enhanced seismic performance objectives, such as those for hospitals, critical emergency response facilities, mass electronic data storage centers, and similar buildings whose functionality following a major seismic event is either critical to the public welfare or the financial solvency of an organization. While achieving these enhanced performance objectives is a natural (and oftentimes requisite) application of seismic isolation, little attention has been given to the extension of current design practice to isolated buildings which may have more conventional performance objectives. The development of a rational design methodology for isolated buildings requires thorough investigation of the behavior of isolated structures subjected to seismic input of various recurrence intervals, and which are designed to remain elastic only under frequent events. This paper summarizes these investigations, and proposed a consistent probabilistic framework within which any combination of performance objectives may be met. Analytical simulations are presented, the results are summarized. The intent of this work is to allow a building owner to make informed decisions regarding tradeoffs between superstructure performance (drifts, accelerations) and isolation system performance. Within this framework, it is possible to realize the benefits of designing isolated buildings for which the design criteria allows consideration of multiple performance goals.

키워드

참고문헌

  1. Astrella, M. and Whittaker, A. S. (2004), "Changing the paradigm for performance-based design", Proceedings, International Workshop on Performance- Based Seismic Design, Bled, Slovenia, PEER Report 2004/05.
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피인용 문헌

  1. Comparing the dynamic behavior of a hospital-type structure with fixed and isolated base vol.9, pp.3, 2015, https://doi.org/10.12989/eas.2015.9.3.657
  2. Parametric Statistical Generalization of Uniform-Hazard Earthquake Ground Motions vol.137, pp.3, 2011, https://doi.org/10.1061/(ASCE)ST.1943-541X.0000330
  3. Nonlinear dynamic analysis of base isolated cable-stayed bridge under earthquake excitations vol.66, 2014, https://doi.org/10.1016/j.soildyn.2014.07.013
  4. Seismic isolation performance sensitivity to potential deviations from design values vol.18, pp.2, 2016, https://doi.org/10.12989/sss.2016.18.2.293
  5. Fabrication and Characterization of Natural Rubber-Based Magnetorheological Elastomers at Large Strain for Base Isolators vol.2018, pp.1875-9203, 2018, https://doi.org/10.1155/2018/7434536
  6. Modeling of triple concave friction pendulum bearings for seismic isolation of buildings vol.40, pp.3, 2008, https://doi.org/10.12989/sem.2011.40.3.315
  7. Investigation of the Structural Response of the MRE-Based MDOF Isolated Structure under Historic Near- and Far-Fault Earthquake Loadings vol.11, pp.6, 2008, https://doi.org/10.3390/app11062876