Interferometric Analysis of Strong Ground Motion for Structural Health Monitoring: The Example of the L’Aquila, Italy, Seismic Sequence of 2009

摘要: Abstract Structural health monitoring (SHM) aims to improve knowledge of the safety and maintainability civil structures. The usage recording systems exploiting wireless communication technology is particularly suitable for SHM, especially rapid response following earthquakes. In this study, both these issues are combined, we report on application seismic interferometry SHM using a dataset seven earthquakes collected novel system accelerometers during L’Aquila, Italy, sequence in 2009. We show that interferometric analysis allows estimation shear-wave velocity phases propagating throughout structure, and, most important purposes, variations aftershock sequence. Moreover, innovatively apply S transform building functions retrieved by estimate fundamental resonance frequency quality factor Q .