【書報討論】108/3/28 國立交通大學土木工程學系 楊子儀副教授
演講時間：108/3/28（四）15:30-17:00
演講地點：國立清華大學工程一館107演講廳
演講者：國立交通大學土木工程學系 楊子儀副教授
講題：Investigation of Vehicle-Bridge Interaction（車橋互制行為分析）
摘要：The concept of vehicle-bridge interaction (VBI) was originated from the investigation of high-speed trains in 1990s. Later in 2004, the idea of extracting bridge frequencies from a passing vehicle was further applied to investigate the dynamic behavior of bridges in structural health monitoring. Traditionally, the test vehicle was modeled as a single-degree-of-freedom sprung mass moving over a simple beam in most previous studies, which suffers from the drawback that the sprung mass is largely affected by the vehicle motion and thus the bridge frequencies may not be identified clearly. As such, the Yang’s group aims at effectively analyzing vehicle-bridge interaction and has proposed several vehicle models. In this presentation, three different vehicle models will be introduced, and the corresponding numerical results will be discussed accordingly. As there exist lots of factors affecting the results of identification of bridge frequencies, the key factors will be investigated through the parametric study. Finally, the discussion of the pros and cons of each model concludes the presentation.
演講地點：國立清華大學工程一館107演講廳
演講者：國立交通大學土木工程學系 楊子儀副教授
講題：Investigation of Vehicle-Bridge Interaction（車橋互制行為分析）
摘要：The concept of vehicle-bridge interaction (VBI) was originated from the investigation of high-speed trains in 1990s. Later in 2004, the idea of extracting bridge frequencies from a passing vehicle was further applied to investigate the dynamic behavior of bridges in structural health monitoring. Traditionally, the test vehicle was modeled as a single-degree-of-freedom sprung mass moving over a simple beam in most previous studies, which suffers from the drawback that the sprung mass is largely affected by the vehicle motion and thus the bridge frequencies may not be identified clearly. As such, the Yang’s group aims at effectively analyzing vehicle-bridge interaction and has proposed several vehicle models. In this presentation, three different vehicle models will be introduced, and the corresponding numerical results will be discussed accordingly. As there exist lots of factors affecting the results of identification of bridge frequencies, the key factors will be investigated through the parametric study. Finally, the discussion of the pros and cons of each model concludes the presentation.
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