Dynamic characteristics of multi-story reinforced concrete buildings

Jonas Thor Snaebjornsson*, Eythor Rafn Thorhallsson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Having a realistic estimate of structural parameters, such as natural frequency and damping is important for design purposes. In this study, available wind and earthquake induced acceleration data from four multi-story reinforced concrete buildings are utilized to examine structural behaviour and system parameters. The buildings measurement systems are described and the recorded structural response data presented. The data stems from two different sources of excitation, i.e. wind and earthquake, and are recorded for various excitation levels and environmental conditions. System identification analyses of the buildings are carried out applying previously verified parametric methods to the recorded data. The natural frequencies and critical damping ratios established from the recordings are compared to values estimated using design guidelines and international data compilations for reinforced concrete structures of similar type. Considerable variability is discovered between the different estimation formulas and the observed natural frequencies of the buildings are found to lie at the upper limit of the prediction formulae.

Original languageEnglish
Title of host publicationProceedings from 22nd Czech Concrete Day 2015
EditorsSarka Nenadalova, Petra Johova
PublisherInternational Multidisciplinary Scientific Geoconference
Pages235-240
Number of pages6
ISBN (Print)9783038356752
DOIs
Publication statusPublished - 2016
Event3rd Asian School-Conference on Physics and Technology of Nanostructured Materials, 2015 - Vladivostok, Russian Federation
Duration: 19 Aug 201526 Aug 2015

Publication series

NameInternational Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
Volume249
ISSN (Print)1314-2704

Conference

Conference3rd Asian School-Conference on Physics and Technology of Nanostructured Materials, 2015
Country/TerritoryRussian Federation
CityVladivostok
Period19/08/1526/08/15

Bibliographical note

Publisher Copyright:
© 2016 Trans Tech Publications, Switzerland.

Other keywords

  • Acceleration response
  • Building
  • Damping
  • Dynamics
  • Earthquake
  • Finite element analysis
  • Natural frequency
  • Reinforced concrete
  • Wind

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