Proportional flexibility-based damage detection for buildings in unknown mass scenarios: The case of severely truncated modal spaces

Giacomo Bernagozzi,Suparno Mukhopadhyay,Raimondo Betti,Luca Landi,Pier Paolo Diotallevi

Engineering Structures（2022）

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摘要

•A technique is proposed to estimate the mass distribution from output-only data.•The technique can handle the case of severely truncated modal spaces.•Proportional flexibility matrices (PFMs) can then be assembled.•The technique is integrated in a damage detection method for building structures.•The method can be applied with minimal or no a-priori information on the masses.

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关键词

Structural health monitoring,Damage detection,Modal flexibility matrix,Modal flexibility-based deflection,Building structure,Output-only vibration data

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