Preliminary Identification of Dynamic Characteristics of a Unique Building in Chile Following 27 February 2010 (Mw=8.8) Earthquake

  • M. Çelebi
  • M. Sereci
  • R. Boroschek
  • R. Carreño
  • P. Bonelli
Conference paper
Part of the RILEM Bookseries book series (RILEM, volume 6)

Abstract

Following the 27 February 2010 (Mw = 8.8) Offshore Maule, Chile earthquake, a temporary, real-time data streaming array comprising 16 channels of accelerometers was deployed throughout a recently constructed 16 story tall building with three additional basement stories in Vina del Mar, Chile. This building was not damaged during the mainshock; however, it is similar in design to many other buildings with multiple shear walls that were damaged but did not collapse in Vina del Mar and other parts of Chile. The temporary array recorded low-amplitude response of the building from aftershocks. The recordings provided dynamic response characteristics of the cast-in-place reinforced concrete building. Available dynamic characteristics from mathematical modal analyses are compared to the observed responses. Distinct “major-axes” translational and torsional fundamental frequencies as well as frequencies of secondary modes are identified. Response data from each earthquake provide evidence of beating.

Keywords

Core-shear wall building Instrumentation Modal analysis Structural health monitoring 

References

  1. [1].
    Boroschek, R.L., and Mahin, S.A. (1991). Investigation of the Seismic Response of a Lightly-Damped Torsionally-coupled Building: University of California, Berkeley, Earthquake Engineering Research Center Report UCB/EERC-91/18, 291pp.Google Scholar
  2. [2].
    Çelebi, M., (2004). Responses of a 14-Story (Anchorage, Alaska) Building to Far-Distance (Mw=7.9) Denali Fault (2002) and Near Distance Earthquakes in 2002, Earthquake Spectra, Journal of EERI, Earthquake Spectra, vol.20, no.3, pp. 693–706, August 2004.CrossRefGoogle Scholar

Copyright information

© RILEM 2013

Authors and Affiliations

  • M. Çelebi
    • 1
  • M. Sereci
    • 2
  • R. Boroschek
    • 3
  • R. Carreño
    • 3
  • P. Bonelli
    • 4
  1. 1.USGSMenlo ParkUSA
  2. 2.Digitexx Inc.PasadenaUSA
  3. 3.University of ChileSantiagoChile
  4. 4.UTFSMValparaisoChile

Personalised recommendations