TY - CONF A1 - Liao, Chun-Man T1 - Investigation of ambient noise seismological methods on a bridge model N2 - Structural health monitoring is a big issue of the prevention measure for civil structures in the seismic hazard region. The GIOTTO project aims to develop of the real time monitoring in civil engineering by use of the 6 DOFs sensors. This presented work is part of the GIOTTO Project. BAM offered the idea test structure BLEIB bridge for experiment. This prestressed concrete bridge model benefits us to have the various structural condition with different pre-stress. The passive and active monitoring were carried out. The seismic interferometry technique was considered to extract the virtual wave propagation in the structure comparable to the real impulse response excited by the hammer impact. Meanwhile the ultrasonic measurement was performed during the monitoring. The coda wave interferometry (CWI) was applied to investigate the wave velocity variation in two kinds of scale recordings at different prestressed states. The experimental result approves that the seismological noise- based methods are the appropriate evaluation tool for the measurement data. T2 - Seminar WP 2.2 Special Topics in Seismology CY - Online meeting DA - 04.05.2021 KW - Real time monitoring KW - Seismological noise-based methods KW - Coda wave interferometry PY - 2021 AN - OPUS4-52572 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -