Seismic behaviour of square lined underground structures

Pelli, E; Yiouta-Mitra, P; Sofianos, AI

dc.contributor.author	Pelli, E	en
dc.contributor.author	Yiouta-Mitra, P	en
dc.contributor.author	Sofianos, AI	en
dc.date.accessioned	2014-03-01T02:44:11Z
dc.date.available	2014-03-01T02:44:11Z
dc.date.issued	2006	en
dc.identifier.issn	08867798	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/31736
dc.title	Seismic behaviour of square lined underground structures	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1016/j.tust.2005.12.081	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.tust.2005.12.081	en
heal.publicationDate	2006	en
heal.abstract	The case of elastic lined square underground structures in a homogeneous isotropic elastic medium under seismic excitation is hereby examined and the peak sectional forces and moments exerted on the lining investigated. A two-dimensional finite-difference model is used to study the effect of the structure depth, the frequency of the excitation and the flexibility ratio of the soil-structure system. A comparison with the pseudo-static method (Simplified Frame Analysis Model) is also performed. The results of all analyses have shown that seismic excitation causes sectional forces/moments that depend strongly on the structure depth, the flexibility ratio, and the frequencies of the shear wave. Furthermore, the pseudo-static as compared to the dynamic method has proved inefficient under specific circumstances.	en
heal.journalName	Tunnelling and Underground Space Technology	en
dc.identifier.doi	10.1016/j.tust.2005.12.081	en
dc.identifier.volume	21	en
dc.identifier.issue	3-4	en