TIME-DOMAIN WAVE EQUATION ANALYSES OF SINGLE PILES UTILIZING TRANSFORMED RADIATION DAMPING
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概要
- 論文の詳細を見る
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.
- 社団法人地盤工学会の論文
- 1999-04-15
著者
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Yeh Shinghung
Former Graduate Research Assistant Ditto. Manuscript Was Received For Review On April 14 1997. Writt
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CHANG DERWEN
Professor, Department of Civil Engineering, Tamkang University, Tamsui, Taiwan 25137, ROC.
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Chang Derwen
Professor Department Of Civil Engineering Tamkang University Tamsui Taiwan 25137 Roc.
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Yeh Shing-Hung
Former Graduate Research Assistant, ditto. Manuscript was received for review on April 14, 1997. Written discussions on this paper should be submitted before November 1, 1999 to the Japanese Geotechnical Society, Sugayama Bldg. 4F, Kanda Awaji-cho 2-23, C
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Chang Der-Wen
Professor, Department of Civil Engineering, Tamkang University, Tamsui, Taiwan 25137, ROC.