An analytical method for strength verification of buried steel pipelines at normal fault crossings

Karamitros, DK; Bouckovalas, GD; Kouretzis, GP; Gkesouli, V

dc.contributor.author	Karamitros, DK	en
dc.contributor.author	Bouckovalas, GD	en
dc.contributor.author	Kouretzis, GP	en
dc.contributor.author	Gkesouli, V	en
dc.date.accessioned	2014-03-01T01:35:05Z
dc.date.available	2014-03-01T01:35:05Z
dc.date.issued	2011	en
dc.identifier.issn	0267-7261	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20969
dc.subject	Active Fault	en
dc.subject	Analytic Solution	en
dc.subject	Analytical Method	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	3-D nonlinear numerical analysis	en
dc.subject.other	Active fault	en
dc.subject.other	Analytical method	en
dc.subject.other	Analytical methodology	en
dc.subject.other	Analytical predictions	en
dc.subject.other	Analytical solutions	en
dc.subject.other	Buried steel pipeline	en
dc.subject.other	Complex problems	en
dc.subject.other	Fault planes	en
dc.subject.other	Intersection angles	en
dc.subject.other	Normal faults	en
dc.subject.other	Solution algorithms	en
dc.subject.other	Strike-slip fault	en
dc.subject.other	Numerical analysis	en
dc.subject.other	Pipelines	en
dc.subject.other	Steel pipe	en
dc.subject.other	Crossings (pipe and cable)	en
dc.subject.other	accuracy assessment	en
dc.subject.other	active fault	en
dc.subject.other	algorithm	en
dc.subject.other	bending	en
dc.subject.other	buried structure	en
dc.subject.other	earthquake engineering	en
dc.subject.other	mathematical analysis	en
dc.subject.other	pipeline	en
dc.subject.other	steel structure	en
dc.subject.other	strain analysis	en
dc.subject.other	strike-slip fault	en
dc.subject.other	three-dimensional modeling	en
dc.title	An analytical method for strength verification of buried steel pipelines at normal fault crossings	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.soildyn.2011.05.012	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.soildyn.2011.05.012	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	The complex problem of strength verification of a buried steel pipeline crossing the trace of a normal active fault is treated analytically, and a refined methodology for the calculation of the axial and bending pipeline strains is presented. In essence, the proposed methodology extends the analytical methodology originally proposed by Karamitros et al. [1] for the simpler case of strike-slip fault crossings. The modifications introduced to the original methodology are first identified, following a thorough examination of typical results from advanced 3D nonlinear numerical analyses, and consequently expressed via an easy to apply solution algorithm. A set of similar numerical analyses, performed for a wide variety of fault plane inclinations and intersection angles between the pipeline axis and the fault trace, is used to check the accuracy of the analytical predictions. Fairly good agreement is testified for pipeline strains up to 1.50-2.00%. It is further shown that, although the methodology proposed herein applies strictly to the case of right intersection angles, it may be readily extended to oblique intersections, when properly combined with existing analytical solutions for strike-slip fault crossings (e.g. [11]). (C) 2011 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Soil Dynamics and Earthquake Engineering	en
dc.identifier.doi	10.1016/j.soildyn.2011.05.012	en
dc.identifier.isi	ISI:000295198600002	en
dc.identifier.volume	31	en
dc.identifier.issue	11	en
dc.identifier.spage	1452	en
dc.identifier.epage	1464	en