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The aim is to develop a cost-effective method for assessing bridge performance without extensive sensor use.

High-Resolution Performance Assessment of Bridges: An Indirect Modal Identification Framework Using Vehicle–Bridge Contact-Point Response

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The aim is to develop a cost-effective method for assessing bridge performance without extensive sensor use.
Proposed a novel indirect modal identification framework combining vehicle-bridge contact response and local mean decomposition.
Conducted comprehensive numerical validation to support the framework's efficacy.
Focused on high-precision extraction of the first three bridge mode shapes.
Achieved modal assurance criterion values not lower than 0.9998 under optimal conditions.
Method remained robust under significant environmental noise (SNR = 20 dB) and traffic interference.
Effectiveness maintained for identifying the fundamental mode despite challenges from road surface roughness.

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Randomized trial demonstrates effective modal identification in bridges, suggesting improved safety monitoring methods.

Zhou et al. (2026) studied this question.

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