Fundamental period elongation of a RC building during the Pollino seismic swarm sequence. (December 2016)

• Record Type: Journal Article
• Authors: Gallipoli, Maria Rosaria; Stabile, Tony Alfredo; Guéguen, Philippe; Mucciarelli, Marco; Comelli, Paolo; Bertoni, Michele
• Is Part Of: Case studies in structural engineering. Volume 6(2016:Dec.)
• Page Start: 45
• Page End: 52
• Publication Date: 2016-12
• Subjects: Cost effective monitoring -- Building period elongation -- Non-stationary frequency response; Structural engineering -- Case studies -- Periodicals; 624.105
• DOI: 10.1016/j.csse.2016.05.005
• Languages: English
• ISSNs: 2214-3998

Abstract

Abstract: A primary school in Rotonda was monitored during an on-going seismic sequence in the Pollino area, Southern Italy. The Reinforced Concrete (RC) building is a typical three story building with a concrete frame, bearing pre-cast slab flooring, concrete block internal walls and pre-cast external infill slabs. The monitoring began in September 2011 with a single station on top of the building, and after the ML = 5 mainshock occurred in October 2012 a network was completed with accelerometers on each floor and real-time streaming data was transmitted to the Istituto Nazionale di Oceanografia e Geofisica Sperimentale (Udine-Northern Italy). The school suffered no visible damage during the sequence. The real-time monitoring of the Rotonda school proved to be important for two reasons: (1) the large range of magnitudes and recorded peak accelerations allowed the study of the non-stationary frequency response; (2) the results also show how a simple, real-time monitoring system using cost-effective accelerometers could be used as a tool to provide information on the damage state and usability of the school.