Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. VII
Written by Daniela DOBRE, Claudiu Sorin DRAGOMIR
The paper is intended to present some aspects regarding the safety evaluation methods by determining those defining characteristics of a structural system (behaviour in time through dynamic characteristics evolution). This assessment should first be initiated in the case of buildings with essential functions and which could pose a major threat to public safety in case of collapse or serious damage. Determining, using intelligent wireless sensor networks, used within of a real-time data transmissions system, of some accelerograph data obtained from earthquakes with significant magnitude, will lead to an image of the spatial distribution of peak ground acceleration (PGA). Obtaining additional data over time will highlight some conclusions about acceleration values and directivity of seismic waves in the territory. On the other hand, the determination of the dynamic characteristics of structural systems by non-invasive and non-destructive instrumental measurements, under normal micro-seismic agitation, offers the possibility of obtaining important data in the structural safety assessment process after a major earthquake. Correlation of structural dynamic information, determined in situ and by analytical approaches, is a necessary step in the continuous process of risk exposure in an area with disaster potential. Data about a few study cases are presented.
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