000015640 001__ 15640
000015640 005__ 20161115135325.0
000015640 04107 $$aeng
000015640 046__ $$k2013-06-12
000015640 100__ $$aTegou, S.
000015640 24500 $$aAnalytical and Experimental Investigation on the Seismic Efficiency of a New Restraining System for Limiting the Seismic Movements of the Bridge Deck

000015640 24630 $$n34.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000015640 260__ $$bNational Technical University of Athens, 2013
000015640 506__ $$arestricted
000015640 520__ $$2eng$$aThe aim of this study is the analytical and experimental investigation on the seismic efficiency of an innovative restraining system. This system consists of transversely directed R/C walls, which behave as seismic stoppers. The aforementioned walls constitute part of the abutment and they are transversely directed to the longitudinal direction of the bridge. The available height of the abutment and the thickness of the walls are the main parameters affecting the serviceability level and seismic resistance of the aforementioned system. These parameters are strongly correlated, as they both influence the shear ratio of concrete walls and consequently, the seismic efficiency of the abutment. It is noted that the restraining walls of the abutment contribute not only by their own stiffness but also by dissipating energy through hysteretic behavior. In the first part of the study the investigation on the applicability of the proposed restraining system in all bridge types, independently of their length and the abutment’s available height is presented. In the second part of the study the experimental investigation on the seismic efficiency of the proposed restraining system under monotonic and cyclic loading is presented. The experimental program involves three specimens. The results of the investigation showed that the proposed restraining system improves the safety, durability, serviceability, aesthetics and cost-effectiveness of bridges. Specifically, the exploitation of the proposed abutment in monolithic and floating deck bridge systems showed that, the longitudinal and transverse movements of the deck are effectively reduced. The aforementioned reductions in the seismic movements lead to reduced seismic actions of the piers. It is noted that, the reduction in the seismic actions leads to cost- effective and smaller cross-sections of the piers, which also serve aesthetics. Finally, the experimental investigation verified that the capacity of the system to dissipate energy is significant.

000015640 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015640 653__ $$aBridge, Abutment, Earthquake Resistance, Height, Length, Experimental Setup

000015640 7112_ $$aCOMPDYN 2013 - 4th International Thematic Conference$$cIsland of Kos (GR)$$d2013-06-12 / 2013-06-14$$gCOMPDYN2013
000015640 720__ $$aTegou, S.$$iTegos, I.
000015640 8560_ $$ffischerc@itam.cas.cz
000015640 8564_ $$s846142$$uhttps://invenio.itam.cas.cz/record/15640/files/1186.pdf$$yOriginal version of the author's contribution as presented on CD, section: CD-MS 15 NUMERICAL SIMULATION AND EXPERIMENTAL VERIFICATION ON PROBLEMS IN THE FIELD OF EARTHQUAKE ENGINEERING AND STRUCTURAL DYNAMICS
.
000015640 962__ $$r15525
000015640 980__ $$aPAPER