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Title of Journal: Bull Earthquake Eng

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Abbravation: Bulletin of Earthquake Engineering

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Springer Netherlands

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DOI

10.1007/978-3-540-36841-0_614

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1573-1456

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Collapse risk and residual drift performance of st

Authors: A S Tzimas G S Kamaris T L Karavasilis C Galasso
Publish Date: 2016/03/18
Volume: 14, Issue: 6, Pages: 1643-1662
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Abstract

The potential of posttensioned selfcentering momentresisting frames SCMRFs and viscous dampers to reduce the collapse risk and improve the residual drift performance of steel buildings in nearfault regions is evaluated For this purpose a prototype steel building is designed using different seismicresistant frames ie momentresisting frames MRFs MRFs with viscous dampers SCMRFs and SCMRFs with viscous dampers The frames are modeled in OpenSees where material and geometrical nonlinearities are taken into account as well as stiffness and strength deterioration A database of 91 nearfault pulselike ground motions with varying pulse periods is used to conduct incremental dynamic analysis IDA in which each ground motion is scaled until collapse occurs The probability of collapse and the probability of exceeding different residual story drift threshold values are calculated as a function of the ground motion intensity and the period of the velocity pulse The results of IDA are then combined with probabilistic seismic hazard analysis models that account for nearfault directivity to assess and compare the collapse risk and the residual drift performance of the frames The paper highlights the benefit of combining the posttensioning and supplemental viscous damping technologies in the nearsource In particular the SCMRF with viscous dampers is found to achieve significant reductions in collapse risk and probability of exceedance of residual story drift threshold values compared to the MRFThis research has been supported by a Marie Curie Intra European Fellowship within the 7th European Community Framework Programme and by the Engineering and Physical Sciences Research Council of the United Kingdom Grant Ref EP/K006118/1 The authors acknowledge Professor Abbie Liel and Dr Eugenio Chioccarelli for providing explanations on their published research work

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  2. Soil failure can be used for seismic protection of structures
  3. Response spectrum analysis for non-classically damped linear system with multiple-support excitations
  4. On the vulnerability assessment of monumental buildings
  5. Small centres damaged by 2009 L’Aquila earthquake: on site analyses of historical masonry aggregates
  6. Evidence of beneficial role of inclined piles: observations and summary of numerical analyses
  7. Results and analytical simulation of axial and diagonal compression tests on reinforced concrete panels cast with wood blocks system
  8. Consistency of ground-motion predictions from the past four decades
  9. A method for the direct determination of approximate floor response spectra for SDOF inelastic structures
  10. Accounting for end-user preferences in earthquake early warning systems
  11. Analytical prediction of ultimate moment and curvature of RC rectangular sections in compression
  12. Seismic performance of masonry residential buildings in Lorca’s city centre, after the 11th May 2011 earthquake
  13. A first approach to earthquake damage estimation in Haiti: advices to minimize the seismic risk
  14. The relevance of energy damping in unreinforced masonry rocking mechanisms. Experimental and analytic investigations
  15. Damage to residential buildings in Hveragerði during the 2008 Ölfus Earthquake: simulated and surveyed results
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