Fundamental period elongation of a RC building during the Pollino seismic swarm sequence

Maria Rosaria Gallipoli , Tony Alfredo Stabile , Philippe Guéguen , Marco Mucciarelli , Paolo Comelli , Michele Bertoni
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引用次数: 7

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.

在Pollino地震群序列中RC建筑的基本周期伸长
在意大利南部波里诺地区正在进行的地震序列中,对罗通达的一所小学进行了监测。钢筋混凝土(RC)建筑是典型的三层建筑,具有混凝土框架,预制板地板,混凝土砌块内墙和预制外部填充板。监测开始于2011年9月,仅在建筑物顶部设置了一个监测站,2012年10月ML = 5主震发生后,每个楼层都安装了加速度计,并将实时流数据传输到意大利国家海洋和地理实验研究所(意大利北部乌迪内)。在这一系列事件中,学校没有受到明显的破坏。Rotonda学校的实时监测被证明是重要的,原因有两个:(1)大范围的震级和记录的峰值加速度允许研究非平稳频率响应;(2)研究结果还表明,使用经济高效的加速度计的简单实时监测系统可以作为提供学校损坏状态和可用性信息的工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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