000015569 001__ 15569
000015569 005__ 20161115135323.0
000015569 04107 $$aeng
000015569 046__ $$k2013-06-12
000015569 100__ $$aMakris, N.
000015569 24500 $$aRocking Response and Stability Analysis of an Array of Free-Standing Columns Capped With a Free-Standing Rigid Beam

000015569 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015569 260__ $$bNational Technical University of Athens, 2013
000015569 506__ $$arestricted
000015569 520__ $$2eng$$aThis paper investigates the planar rocking response of an array of free-standing columns capped with a freely supported rigid beam in an effort to explain the appreciable seismic stability of ancient free-standing columns which support heavy epistyles together with the even heavier frieze atop. Following a variational formulation the paper concludes to the remarkable result that the dynamic rocking response of an array of free-standing columns capped with a rigid beam is identical to the rocking response of a single free-standing column with the same slenderness; yet with larger size—that is a more stable configuration. Most importantly, the study shows that the heavier the freely supported cap-beam is (epistyles with frieze atop), the more stable is the rocking frame regardless the rise of the center of gravity of the cap-beam; concluding that top-heavy rocking frames are more stable than when they are top-light. This “counter intuitive” finding renders rocking isolation a most attractive alternative for the seismic protection of bridges with tall piers; while its potential implementation shall remove several of the concerns associated with the seismic connections of prefabricated bridges.

000015569 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015569 653__ $$aRocking Frame, Seismic Isolation, Ancient Temples, Prefabricated Bridges, Earthquake Engineering

000015569 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015569 720__ $$aMakris, N.$$iVassiliou, M.
000015569 8560_ $$ffischerc@itam.cas.cz
000015569 8564_ $$s551850$$uhttp://invenio.itam.cas.cz/record/15569/files/1083.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-MS 40 STRUCTURAL DYNAMICS AND EARTHQUAKE ENGINEERING OF ROCKING STRUCTURES
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000015569 962__ $$r15525
000015569 980__ $$aPAPER