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The dynamic response of seabed anchored floating tunnels under seismic excitation
Author(s) -
Fogazzi P.,
Perotti F.
Publication year - 2000
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/(sici)1096-9845(200003)29:3<273::aid-eqe899>3.0.co;2-z
Subject(s) - seabed , finite element method , geology , transverse plane , excitation , structural engineering , geotechnical engineering , engineering , oceanography , electrical engineering
In this paper a procedure for analysing the seismic response of seabed anchored floating tunnels is presented. The first step of the research was the development of an ‘ad hoc’ finite element for modelling the behaviour of anchor elements, with particular reference to the problem of transverse oscillations under time varying axial loads. The element was subsequently inserted in a step‐by‐step procedure for the numerical analysis of non‐linear response to multiple‐support seismic input; the procedure encompasses simplified modelling of fluid–structure and soil–structure interaction effects. An example of an application is given concerning two 4680 m long floating tunnels with different seabed profiles. Copyright © 2000 John Wiley & Sons, Ltd.