Preliminary communication

Geotechnical site classification and Croatian National Annex for Eurocode 8

Predrag Kvasnička ; Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Zagreb, Croatia
Leo Matešić ; Faculty of Civil Engineering, University of Rijeka, Rijeka, Croatia
Krešo Ivandić ; Faculty of Geotechnical Engineering, University of Zagreb, Varaždin, Croatia

Abstract

One of the challenging tasks for Croatian accession to the European Union is the completion of the National Annex to Eurocode 8 (EC8) that calls for the development of national seismic hazard maps. These maps need to be developed for several return periods (probabilities of exceedance) and should consider both bedrock and soil conditions. The latter is especially challenging as it calls for site characterization at a microzonation level, i.e., site characterization based upon Vs,30, SPT blowcounts, and undrained shear strength, information available only in the departments of Public Works of major cities. In this paper, the authors discuss several shortcomings associated with the EC8 ground type definitions and propose their revision. The authors also present the ongoing work for preparation of the Croatian National Annex to EC8 and explain the rationale for the improvement of EC8 ground type definitions.

Keywords

site response; ground types; Eurocode 8

Hrčak ID:

70823

URI

https://hrcak.srce.hr/70823

Publication date:

30.6.2011.

Article data in other languages: croatian

Visits: 1.869 *