000011611 001__ 11611
000011611 005__ 20141205155928.0
000011611 04107 $$aeng
000011611 046__ $$k2008-10-12
000011611 100__ $$aSharabash, Alaa M.
000011611 24500 $$aSeismic Control of Cable-Stayed Bridges Using Shape Memory Alloy Dampers

000011611 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011611 260__ $$b
000011611 506__ $$arestricted
000011611 520__ $$2eng$$aThe superelasticity and damping capability of the shape memory alloys (SMAs) are sought in this study to develop a supplementary recentering and energy dissipation device for cable-stayed bridges. This paper introduces and investigates the performance of a new passive seismic control device for cable-stayed bridges made with SMAs. A three-dimensional long-span bridge model including the effect of soil-structure interaction is developed and utilized in the study. SMA dampers are implemented at the bridge’s deck-pier and deck-tower connections. The bridge is subjected to three orthogonal components from a historic ground motion record. The effectiveness of the SMA dampers in controlling the deck displacement and limiting the shear and bending moment demands on the bridge towers is assessed. The analytical results show that SMA dampers can successfully control the seismic behavior of the bridge. However, the effectiveness of the new dampers is significantly influenced by the relative stiffness between the dampers used at the deck-tower and deck-pier connections.

000011611 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011611 653__ $$aCable-stayed bridges, Shape memory alloys, Seismic, Dampers

000011611 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011611 720__ $$aSharabash, Alaa M.$$iAndrawes, Bassem O.
000011611 8560_ $$ffischerc@itam.cas.cz
000011611 8564_ $$s606467$$uhttps://invenio.itam.cas.cz/record/11611/files/11-0056.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 11-0056.
000011611 962__ $$r9324
000011611 980__ $$aPAPER