Wind-induced interaction of a non-uniform tuned liquid column damper and a structure in pitching motion
學年 97
學期 1
出版（發表）日期 2008-12-01
作品名稱 Wind-induced interaction of a non-uniform tuned liquid column damper and a structure in pitching motion
作品名稱（其他語言）
著者 Wu, Jong-Cheng; Wang, Yen-Po; Lee, Chien-Liang; Liao, Pei-Hsuan; Chen, Yi-Hsuan
單位 淡江大學土木工程學系
出版者 Kidlington: Pergamon
著錄名稱、卷期、頁數 Engineering Structures 30(12), pp.3555-3565
摘要 Wind-induced interaction between a tuned liquid column damper (TLCD) and a structure (bridge deck) in pitching motion is investigated both theoretically and experimentally. Non-uniform. cross-sections in TLCDs are considered in general. Theoretically, the interacted equations of motion under wind excitation were derived for a single-degree-of-freedom rotational structure equipped with a TLCD based on energy principles. An addition term, which had never been revealed in existing literature, was discovered. The second part in this study was to demonstrate the existence of this additional term through experimental verification. This task was carried out by conducting large scale tests on the system of a TLCD on a rotational structure (which is a spring-constrained steel beam pivoted at mid-span) and by making comparisons between the experimental and analytical responses of the interacted structure subjected to harmonic loading. To obtain all necessary parameters for computing the analytical responses in the interaction, the individual identification of the properties of the TLCD and structure using free vibration and forced vibration techniques was also performed. Comparison results show that analytical responses with the additional term included can represent the actual interaction more closely than those without the additional term. Therefore, the inclusion of the additional term in pitching interaction equations is essential.
關鍵字 Tuned liquid column damper (TLCD); Non-uniform cross-section; Pitching interaction; Head loss coefficient; Forced vibration
語言 en
ISSN 0141-0296
期刊性質
收錄於
產學合作
通訊作者 Wu, Jong-Cheng
審稿制度
國別 GBR
公開徵稿
出版型式 紙本
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