Structural Damage Diagnosis Using Interstory Drift-Based Acceleration Feedback with Test Validation

摘要: AbstractThis study presents a numerical structural damage detection method using interstory drift–based acceleration measurements in the time domain. The coupling effect of at different locations multiple-degree-of-freedom building system is eliminated by projecting measured accelerations onto specific independent subspaces. region will only affect output designed monitor observing substructure within region. severity estimated numerically model-based prediction curve stiffness change. Results obtained present simulations for illustrative examples are validated experimental investigations 3-story aluminum frame structure and 12-story concrete structure, simulation results compared with some representative data favorable correlations. Incorporation incomplete measurement, materials, excit...