What scientific information on the seismic risk to non-structural elements do people need to know? Part 1: Compiling an inventory on damage to non-structural element

Abstract

Understanding seismic damages to non-structural elements and their effects on functionality of facilities are important in developing general recommendations for earthquake risk management. This paper presents a review of non-structural damage caused by recent earthquakes in Mt. Etna in Italy, Lisbon and Azores islands in Portugal and southern Lowland in Iceland. The study was performed as a part of the KnowRISK EU project. The objective of this review is to identify the most commonly damaged non-structural elements in these different areas. This is a basic requirement for preparing prevention strategies communication campaigns that are tailored to the local needs. This study shows that the most commonly damaged elements are partition walls, ceiling systems, non-structural vaults, chimneys, building contents and storage racks. Analyses proved that substantive efforts are needed worldwide to improve techniques for reducing damage to non-structural elements. The observations on frequency, severity, and consequences of damage of different non-structural elements are important for (i) making mitigation plans and priorities (ii) designing mitigation measures, and (iii) communicating the mitigation measures to different stakeholders. These activities aim to raise stakeholders’ awareness of potential risk and viable mitigation measures.