G.C. Manos,   M. Demosthenous,   V. Kourtides,   A. Hatzigeorgiou

ABSTRACT

Results and conclusions are presented from an experimental and numerical study that examines the response of simple models of ancient columns or colonnades. The influence on the response arising from the inclusion of devices based on wires having energy dissipation characteristics (SMA wires) is also studied. The excessive rocking and sliding and subsequent collapse of the epistyle is an additional form of unstable response in addition to the excessive rocking, rotation and sliding of the individual columns. The insertion of the SMA devices seems to inhibit, up to a point, unstable modes of response, whereas these identical model structures without the wires developed certain types of unstable response at lower excitation amplitudes. The numerical simulation used to predict the pull-out test response of the colonnade structural formation with or without SMA devices seems to reproduce the most significant aspects of the observed response.

Key words: Ancient Masonry, Monuments, Dynamic and Earthquake Behavior, Shape Memory Alloy Devices

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