Structural Health Monitoring/Damage Assessment

[2034] ESTIMATING SEISMIC DEMAND USING SENSOR DATA: EVALUATION OF ELASTIC SPECTRA IN THE LINEAR RANGE OF RESPONSE

Jonathan MONICAL¹, Benjamin BRITO¹, Hamood ALWASHALI², Masaki MAEDA¹ (1.Tohoku University 2.Okayama University)

Keywords:elastic spectra、structural health monitoring、sensor、seismic demand、linear response

Structural health monitoring (SHM) systems can perform rapid evaluations of buildings damaged in earthquakes by providing reliable measurements of structural properties and seismic demands. This paper summarizes the output of an SHM system used in earthquake simulation tests of small-scale one-story frame specimens focusing on response spectra and the influence of initial period on estimating seismic demand. The data suggest that calculating linear response using elastic spectra and measured periods reduces error by 350% compared with response calculated using estimated periods.