DBPapers
DOI: 10.5593/SGEM2016/B13/S05.082

THE IRREGULAR BUILDINGS BEHAVIOUR IN CONTEXT OF VRANCEA SEISMICITY

C.S.Dragomir, D. Dobre, M. Lupoae, V. Iliescu
Tuesday 6 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-57-5 / ISSN 1314-2704, June 28 - July 6, 2016, Book1 Vol. 3, 647-654 pp

ABSTRACT
This paper aims to extend the existing studies on seismic behavior of buildings with irregular shapes in-plan and elevation and to analyze the phenomenon of dynamic amplification also in terms of a variable height, in context of Vrancea seismicity. Vrancea is characterized by a source process with some specific spectral characteristics in a narrow epicentral and hypocentral region, showing significant differences in the mechanisms type, a directivity between events and an asymmetric distribution of the ground motion. These buildings with irregular distributions of mass, stiffness, strength, geometrical configurations etc. have exhibited generally a poor seismic performance. Some results for idealized buildings considered as case studies are conclusive and are based on both commented obtained diagrams and on analytical assessments. Through numerical calculation associated with geodynamic and non-destructive measurements, the field surveys, laboratory testing and instrumental, the extremely valuable information about the dynamic response of irregular structures are obtained.

Keywords: earthquake, L-shaped building, dynamic response and amplification