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Subgrade model for transient response analysis of multiple embedded bodies
Author(s) -
Konagai Kazuo,
Nogami Toyoaki
Publication year - 1994
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290231005
Subject(s) - subgrade , transient (computer programming) , simple (philosophy) , time domain , structural engineering , transient response , frequency domain , domain (mathematical analysis) , rigid body , scale (ratio) , engineering , computer science , geotechnical engineering , mathematics , mathematical analysis , physics , classical mechanics , philosophy , electrical engineering , epistemology , quantum mechanics , computer vision , operating system
Abstract During the dynamic response of multiple partially or fully embedded structures, the subgrade medium at the sides of the structures not only generates the soil‐structure interaction forces but also transmits the motions from one structural body to others. With Winkler's hypothesis, these forces and motions are formulated in the time‐domain in a simple form utilizing the frequency‐domains formulations. The validity of the developed formulations is examined using small‐scale‐model test results obtained for piles in a synthetic ground. A numerical example is provided to demonstrate the approach proposed and the formulations developed. The simplified time‐domain formulations are found to be numerically efficient and yet capable of predicting the behaviour reasonably well.