000021543 001__ 21543
000021543 005__ 20170622131251.0
000021543 04107 $$aeng
000021543 046__ $$k2017-06-15
000021543 100__ $$aForcellini, Davide
000021543 24500 $$a3D NUMERICAL SIMULATION OF STOREY ISOLATION ON TALL BUILDINGS

000021543 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021543 260__ $$bNational Technical University of Athens, 2017
000021543 506__ $$arestricted
000021543 520__ $$2eng$$aIsolation technique on tall buildings is becoming increasingly common in large urban centers in order to ensure structural integrity and performance. In particular, while base isolation allows to decouple the structure from the ground considering the entire structure as a unique block, story isolation (SI) is able to separate upper levels from lower parts. The techinque consists of intentionally concentrating seismic energy dissipation in interfaces between selected parts of the structures in order to interrupt the flux of energy between stories. In literature there are applications that investigate story isolated structures with numerical simulations, such as Koh and Kobayashi, 2000, Li et al., 2002, Pochas and Pamboris, 2009, Desai Amit and Gajjar, 2012 and Charmpis et al. 2015. This paper aims at studying a case of a 20-story building previously reproduced as a scaled model on a small shake table. The sample was printed with 3D printer new technology, as shown in Gallanti and Forcellini (2016). The building is here simulated with a 3D finite element model built with the open-source computational interface OpenSeesPL, implemented within the FE code OpenSees. This framework performs non-linear dynamic analysis, by applying the most credited theories to model the structure and soil, model interfaces, boundary conditions and isolators. Opensees allows to assess the structural performance, by considering accelerations and displacements at various heights. Thanks to these potentialities, it was possible to demonstrate firstly that SI has beneficial effects on period elongation. Secondly, the results show the benefit of SI in reducing the displacements and acceleration along the height of the structure. In this regard, the study can be considered one of the few attempts to evaluate the relatively novel technique of SI on tall buildings with advanced numerical simulations such as Opensees. It allows to propose new design considerations for engineers and consultants all over the world. 

000021543 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021543 653__ $$a

000021543 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021543 720__ $$aForcellini, Davide$$iGallanti, Luca
000021543 8560_ $$ffischerc@itam.cas.cz
000021543 8564_ $$s118172$$uhttps://invenio.itam.cas.cz/record/21543/files/16929.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS09] WORKSHOP OF THE INNOSEIS PROJECT- Innovative anti-seismic devices for buildings
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000021543 962__ $$r21500
000021543 980__ $$aPAPER