000015743 001__ 15743
000015743 005__ 20161115135328.0
000015743 04107 $$aeng
000015743 046__ $$k2013-06-12
000015743 100__ $$aManos, G.
000015743 24500 $$aDynamic Behaviour of Greek Post-Byzantine Churches With Foundation Deformability and Evaluation of Their Earthquake Performance - Experimental Investigation of Stone Masonry Material Properties

000015743 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015743 260__ $$bNational Technical University of Athens, 2013
000015743 506__ $$arestricted
000015743 520__ $$2eng$$aThe earthquake performance of stone masonry Post-Byzantine churches subjected to seismic forces is examined. The examined churches are: 1. A three-nave Basilica with a system of stone-masonry vaults and domes as a superstructure together with a wooden roof. 2. An 18th century church of the cruciform type which also utilizes a system of cylindrical vaults and spherical domes that form the superstructure together with the wooden roof. 3. A threenave 18th century Basilica whose the wooden roof is supported directly on the peripheral masonry walls and the internal colonnades. All these churches developed structural damage to the masonry elements that is believed to arise from the amplitude of the gravitational and seismic actions combined with the deformability of the foundation, a parameter that is also part of this investigation. The numerical results together with assumed strength values are utilized to predict the behaviour of the various masonry parts in in-plane shear and normal stress as well as out-of-plane flexure. It is demonstrated that the foundation deformability explains, partly, the appearance of structural damage. When comparing the numerically predicted regions that reach limit state conditions with actual damage patterns a reasonably good agreement in a qualitative sense can be observed. The masonry walls near the foundation, the door and window openings, and the roof appear to be the most vulnerable either in out-of-plane bending or in in-plane shear for the critical combination of seismic forces and gravitational loads. Moreover, the vaults and domes of the superstructure appear to be vulnerable also. A relatively mild retrofitting scheme that utilizes special mortar injections as well as semi-temporary shoring together with wooden and metal ties is then examined. This is also investigated numerically being applied to a 16th Century Basilica with a wooden roof. The numerical investigation is supplemented with a series of limited Laboratory tests on the constituent materials represented by old stone masonry.

000015743 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015743 653__ $$aPost-Byzantine Churches, Numerical Simulation, Deformable Foundation, Experimental study of stone masonry, Retrofitting.

000015743 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015743 720__ $$aManos, G.$$iKotoulas, L.$$iMatsou, V.$$iFelekidou, O.
000015743 8560_ $$ffischerc@itam.cas.cz
000015743 8564_ $$s8130279$$uhttps://invenio.itam.cas.cz/record/15743/files/1383.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-MS 15 NUMERICAL SIMULATION AND EXPERIMENTAL VERIFICATION ON PROBLEMS IN THE FIELD OF EARTHQUAKE ENGINEERING AND STRUCTURAL DYNAMICS
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000015743 962__ $$r15525
000015743 980__ $$aPAPER