000011436 001__ 11436
000011436 005__ 20141205155910.0
000011436 04107 $$aeng
000011436 046__ $$k2008-10-12
000011436 100__ $$aResemini, Sonia
000011436 24500 $$aDynamic Response of Rocking Masonry Elements to Long Period Strong Ground Motion

000011436 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011436 260__ $$b
000011436 506__ $$arestricted
000011436 520__ $$2eng$$aDamage and collapse in masonry structures often take place locally. Due to the dynamic action, the damage mechanisms develop as loss of equilibrium of rigid blocks capable of sliding and rotating. Actually the rocking mechanisms of masonry elements, typically non-linear, show high displacement capacity until collapse, high fundamental period of vibration in the non-linear range that can further increase because of the nearly non-tensile strength of masonry. Recent works (e.g. Resemini et al. 2006) propose an approach based on the Equilibrium Limit Analyses (kinematic theorem), in order to describe these out-of-plane mechanisms. Nevertheless, the chaotic dynamic response of these rocking elements needs further studies. The rocking behaviour and its relation to different input and structural parameters are investigated by means of non-linear numerical simulations, with special attention to the long period range. Using a non-linear dynamic model, several step-by-step dynamic analyses on the equivalent SDOF systems are performed. In these analyses, the ground motion characterization is a crucial topic: from a selection of digital recorded accelerograms (Paolucci et al. 2008, Cauzzi and Faccioli, 2008), long period strong ground motions representative of different conditions (magnitude, focal distance, etc.) are used as input for the structural analyses, both dynamic and simplified (proposing a method based on overdamped response spectra). The aim is to verify the applicability of response spectra parameters to simplified procedures for the structural verification of damage mechanisms in masonry structures. Moreover, the influence on the response of ground motion characteristics (PGA, PGV, PGD, Housner intensity, etc.) is analysed.

000011436 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011436 653__ $$arocking, masonry, non-linear analyses, long period ground motion

000011436 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011436 720__ $$aResemini, Sonia$$iLagomarsino, Sergio$$iCauzzi, Carlo
000011436 8560_ $$ffischerc@itam.cas.cz
000011436 8564_ $$s711623$$uhttp://invenio.itam.cas.cz/record/11436/files/05-01-0499.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-01-0499.
000011436 962__ $$r9324
000011436 980__ $$aPAPER