Subspace Identification of Bridge Frequencies Based on the Dimensionless Response of a Two-Axle Vehicle
Yixin Quan,
Qing Zeng,
Nan Jin
et al.
Abstract:As an essential reference to bridge dynamic characteristics, the identification of bridge frequencies has far-reaching consequences for the health monitoring and damage evaluation of bridges. This study proposes a uniform scheme to identify bridge frequencies with two different subspace-based methodologies, i.e., an improved Short-Time Stochastic Subspace Identification (ST-SSI) method and an improved Multivariable Output Error State Space (MOESP) method, by simply adjusting the signal inputs. One of the key f… Show more
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