Time-Domain Wave Equation Analyses of Single Piles Utilizing Transformed Radiation Damping
學年 87
學期 2
出版（發表）日期 1999-04-01
作品名稱 Time-Domain Wave Equation Analyses of Single Piles Utilizing Transformed Radiation Damping
作品名稱（其他語言）
著者 Chang, Der-Wen; Yeh, Shing-Hung
單位 淡江大學土木工程學系
出版者 Tokyo: Japanese Geotechnical Society
著錄名稱、卷期、頁數 Soils and Foundations 39(2), pp.31-44
摘要 This paper introduces a time-dependent radiation damping for the time-domain wave equation analyses of single piles. By deriving the radiation damping ratios of the linear viscoelastic soils along the pile from the dynamic impedance functions (Novak, 1974), time-dependent damping coefficients are obtained from the inverse Fourier Transform of these damping ratios and the static soil spring constants. Numerical examples are studied by solving the wave equations with the finite difference scheme. Applications of the modeling are presented and discussed with emphasis on identifying the primary factors that control the performance of piles. It is important to know that this solution, in contrast to the ordinary frequency-domain approach, can predict the softening load-displacement response of the piles under cyclic loads. The pile response under monotonic loads would be significantly influenced by the proposed damping parameters.
關鍵字
語言 en
ISSN 1341-7452
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者
審稿制度 否
國別 JPN
公開徵稿
出版型式 ,電子版,紙本
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