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RISModal Analysis and Condition Evaluation of Substructures for Simply Supported High-Speed Railway Bridge Based on a Simplified Model
Publisher: ASCE
Abstract: The condition of substructures in high-speed railway (HSR) bridges is crucial to the safety of the railway operation. However, research on the condition evaluation of substructures in HSR bridges is very limited. In this ...
A Rapid Evaluation Method for the Vertical Condition of Bridge Substructures Using Bayesian System Identification and Output-Only Measurements
Publisher: ASCE
Abstract: Evaluating the bearing capacity of bridge substructures is very important for bridge maintenance and management. However, existing studies that rely on static load tests (SLTs) or transient response methods (TRMs) have ...
A Drive-By Frequency Identification Method for Simply Supported Railway Bridges Using Dynamic Responses of Passing Two-Axle Vehicles
Publisher: ASCE
Abstract: A drive-by method is proposed to identify the modal frequencies of railway bridges from the dynamic responses of two-axle vehicles. The theoretical closed-form solution and frequency components of the vehicle response are ...