000021593 001__ 21593
000021593 005__ 20170622131254.0
000021593 04107 $$aeng
000021593 046__ $$k2017-06-15
000021593 100__ $$aCasagrande, Lorenzo
000021593 24500 $$aDISSIPATING EFFECT OF GLAZED CURTAIN WALL STICK SYSTEM INSTALLED ON HIGH-RISE MEGA-BRACED FRAME-CORE BUILDINGS UNDER NONLINEAR SEISMIC EXCITATION

000021593 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021593 260__ $$bNational Technical University of Athens, 2017
000021593 506__ $$arestricted
000021593 520__ $$2eng$$aThe results derived from the investigation on the dynamic behavior of glazed curtain wall non-structural stick systems installed in modern high-rise mega-frame prototypes is herein summarized. The supporting steel structures, designed in accordance with European rules, consisted of planar frames extracted from reference three-dimensional steel Moment Resisting Frame (MRF), respectively having thirty- and sixty-storey height. To limit interstorey drift and second order effects, outriggers trusses were placed every fifteen stories, whilst a CBF system was chosen as internal core. The characterization of non-structural fac¸ade elements was performed through experimental full-scale crescendo-tests on aluminium/glass curtain wall units. Deriving experimental force-displacement curves, it was possible to calibrate threedimensional inelastic FE models, capable to simulate the interaction between glass panels and aluminium frame. Subsequently, equivalent nonlinear links were calibrated to reproduce the dynamic behaviour of tested glazed unit, and implemented in the thirty- and sixty-storey structural planar frames FE models. Nonlinear time history analyses (NLTHAs) were performed to quantify local and global performance, investigating the enhanced combination of stiffness and strength generated through the implementation of glazed curtain wall on the numerical FE models. Results will be shown in terms of inter-storey drift profiles and displacement peaks, axial force curves and percentage peak variation, showing the sensitivity to the structure height. Trends were discussed to show that, if accurately designed, omitting non-structural elements from the seismic assessment of high-rise prototypes conduct to a sensible underestimation of dynamic dissipation capacity of the building.

000021593 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021593 653__ $$aHigh-rise Structures, Mega-braced Frames, Non-structural Elements, Glazed Curtain Walls, Nonlinear Dynamics, Earthquake Engineering

000021593 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021593 720__ $$aCasagrande, Lorenzo$$iOcchiuzzi, Antonio$$iAuricchio, Ferdinando$$iBonati, Antonio
000021593 8560_ $$ffischerc@itam.cas.cz
000021593 8564_ $$s1575785$$uhttps://invenio.itam.cas.cz/record/21593/files/17166.pdf$$yOriginal version of the author's contribution as presented on CD, section: [RS11] Nonlinear dynamics
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000021593 962__ $$r21500
000021593 980__ $$aPAPER