Coupled seismic response analysis of rubble-mound breakwaters

Memos, CD; Kiara, A; Pavlidis, E

dc.contributor.author	Memos, CD	en
dc.contributor.author	Kiara, A	en
dc.contributor.author	Pavlidis, E	en
dc.date.accessioned	2014-03-01T01:18:48Z
dc.date.available	2014-03-01T01:18:48Z
dc.date.issued	2003	en
dc.identifier.issn	1472-4561	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15204
dc.subject	Docks and harbours	en
dc.subject	Maritime engineering	en
dc.subject	Seismic engineering	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Engineering, Ocean	en
dc.subject.classification	Water Resources	en
dc.subject.other	Deformation	en
dc.subject.other	Geotechnical engineering	en
dc.subject.other	Hydrodynamics	en
dc.subject.other	Seismology	en
dc.subject.other	Rubble-mound breakwaters	en
dc.subject.other	Breakwaters	en
dc.subject.other	breakwater	en
dc.subject.other	hydrodynamic force	en
dc.subject.other	seismic response	en
dc.subject.other	boundary element method	en
dc.subject.other	breakwater	en
dc.subject.other	hydrodynamic force	en
dc.subject.other	seismic response	en
dc.subject.other	shaking table test	en
dc.title	Coupled seismic response analysis of rubble-mound breakwaters	en
heal.type	journalArticle	en
heal.identifier.primary	10.1680/wama.156.1.23.37996	en
heal.identifier.secondary	http://dx.doi.org/10.1680/wama.156.1.23.37996	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	The present investigation considers the seismic behaviour of rubble-mound breakwaters by taking into account the coupling between the hydrodynamic loading and the shaking of the mound. To this end a boundary element code was developed that predicts the hydrodynamic pressures on the faces of the breakwater. This was coupled with a geotechnical code providing the accelerations along the height of the structure. Shaking-table experiments were carried out to verify the model. The methodology was then applied to real-life structures. It is found that the quality of the foundation soil directly and decisively affects the pressures and induced accelerations. Weak foundations can trigger large structure deformations. In tall structures the pressures and accelerations of the mound increase with frequency. Far from resonance, the maximum pressures on the slopes occur at 40% of the water depth from the bed. The total hydrodynamic force can be high under resonance conditions. It is also found that Westergaard's expression overestimates pressures, except in cases of rigid base and shakings of small acceleration and high frequency. The coupling of the hydrodynamic loading and the shaking of the mound, as well as the frequency dependence of the model, represent advances over the conventional Westergaard's relation.	en
heal.publisher	THOMAS TELFORD SERVICES LTD	en
heal.journalName	Proceedings of the Institution of Civil Engineers: Water and Maritime Engineering	en
dc.identifier.doi	10.1680/wama.156.1.23.37996	en
dc.identifier.isi	ISI:000182083600003	en
dc.identifier.volume	156	en
dc.identifier.issue	1	en
dc.identifier.spage	23	en
dc.identifier.epage	31	en