Numerical investigation of the seismic behaviour of connections of ancient colonnades

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dc.contributor.author Dasiou, M-E en
dc.contributor.author Psycharis, IN en
dc.contributor.author Vrouva, A en
dc.date.accessioned 2014-03-01T02:53:23Z
dc.date.available 2014-03-01T02:53:23Z
dc.date.issued 2011 en
dc.identifier.uri http://hdl.handle.net/123456789/36284
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-80054827704&partnerID=40&md5=4e21ca5d7c2fae2c74fad895bed12bb4 en
dc.subject Connections en
dc.subject Earthquake response en
dc.subject Fractures en
dc.subject Monuments en
dc.subject Restoration en
dc.subject.other Capacity design en
dc.subject.other Capacity-design methodology en
dc.subject.other Cement mortars en
dc.subject.other Distinct element methods en
dc.subject.other Earthquake motion en
dc.subject.other Earthquake response en
dc.subject.other Experimental data en
dc.subject.other Monuments en
dc.subject.other Numerical investigations en
dc.subject.other Numerical results en
dc.subject.other Reinforcement bar en
dc.subject.other Restoration project en
dc.subject.other Seismic behaviour en
dc.subject.other Seismic energy en
dc.subject.other Seismic event en
dc.subject.other Seismic excitations en
dc.subject.other Soil conditions en
dc.subject.other Stone blocks en
dc.subject.other Structural scheme en
dc.subject.other Ultimate strength en
dc.subject.other Civil engineering en
dc.subject.other Computational methods en
dc.subject.other Design en
dc.subject.other Earthquakes en
dc.subject.other Engineering geology en
dc.subject.other Numerical methods en
dc.subject.other Reinforcement en
dc.subject.other Restoration en
dc.subject.other Structural dynamics en
dc.subject.other Titanium en
dc.subject.other Seismic design en
dc.title Numerical investigation of the seismic behaviour of connections of ancient colonnades en
heal.type conferenceItem en
heal.publicationDate 2011 en
heal.abstract As a common practice, restoration projects of ancient colonnades have to deal with joining together fragments of architectural members using threaded titanium bars (reinforcement) fixed into place with cement mortar. The basic criterion for the design of such connections is that, in case of a seismic event, the reinforcement should absorb the seismic energy and fail before the marble suffers any damage. For the dimensioning of the titanium bars, a methodology based on the capacity design philosophy is usually implemented. The accurate calculation of the forces that will be induced to the reinforcement during an earthquake is not an easy task, since the response of the structure is governed by the rocking and the sliding of the individual stone blocks. In this paper, the efficiency of the reinforcement used for the connection of complements, which has been calculated with the above-mentioned capacity design methodology, is investigated for selected severe seismic excitations. The analyses were performed for the case study of the restoration of the colonnades of the Southern part of the Ancient Agora of Kos in Greece. The induced forces were calculated by dynamic analyses, using an accurate numerical description of the restoration's structural scheme and earthquake motions of various characteristics, selected to be compatible with the seismological history and the soil conditions at the site. All the analyses were performed using the code 3DEC, which is based on the distinct element method and has been verified and calibrated by comparison of the numerical results with experimental data. The results show that the simplified design that is applied in practice is adequate, as the stresses induced to the reinforcement bars were always less than the ultimate strength and, in many cases, significantly less than the yield resistance as well. en
heal.journalName ECCOMAS Thematic Conference - COMPDYN 2011: 3rd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering: An IACM Special Interest Conference, Programme en

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