000019366 001__ 19366
000019366 005__ 20170118182315.0
000019366 04107 $$aeng
000019366 046__ $$k2017-01-09
000019366 100__ $$aKatakalos, Konstantinos
000019366 24500 $$aCyclic Response of An Antiseismic Steel Device for Buildings  - An Experimental and Numerical Study

000019366 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019366 260__ $$b
000019366 506__ $$arestricted
000019366 520__ $$2eng$$aThe present study is focusing on the experimental and numerical evaluation of the effectiveness of an antiseismic steel device. The developed device, mentioned as CAR1, belongs to the passive energy dissipation systems, as it does not require external power to generate system control forces. It can be used on new or existing structures and can be easily adapted to the particular demands of these. It can be installed in a variety of configurations such as in single or X diagonal bracing in building frames. Moreover the use of this device may result in improving (i) the increase of stiffness, (ii) the absorption of seismic energy, (iii) as well as a control of the axial forces that are developed in the diagonal steel braces. The main part of CAR1 is the groups of superimposed blades, which absorb seismic energy through simultaneous friction and yield. The number and the dimensions of these blades, their elastoplastic properties as well as the friction coefficient over their interface, define the equivalent nonlinear constitutive law of the diagonal bars as a function of their axial force. A Full scale CAR1 device was experimentally investigated under cyclic loading. The experimental load cases were conducted at the Laboratory of Experimental Strength of Materials and Structures of Aristotle University of Thessaloniki. The experimental sets are based on the investigation of the thickness, the cross-section and material of the blades, under different scenarios of cyclic loading with either constant or increasing load. In addition, as far as the numerical study is concerned, Finite Element Models of CAR1 device were developed and analyzed using ABAQUS software, thereby evaluating the reliable performance of the device. In order to simulate the behaviour of the group of the blades in ABAQUS, an explicit dynamic analysis was chosen, on the basis that this type of analysis allows for the definition of - general contact conditions encountered in complicated contact problems, without generating numerical difficulties. After completion of the experiments, the numerical results were compared with the respective experimental ones. Good agreement was shown and further useful results were observed.

000019366 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019366 653__ $$aExperimental validation; FEM; Absorption Seismic Energy; Passive Energy Dissipation System.

000019366 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019366 720__ $$aKatakalos, Konstantinos$$iDoudoumis, Ioannis$$iPapadopoulos, Panikos$$iTitirla, Magdalini
000019366 8560_ $$ffischerc@itam.cas.cz
000019366 8564_ $$s1615173$$uhttps://invenio.itam.cas.cz/record/19366/files/3484.pdf$$yOriginal version of the author's contribution as presented on USB, paper 3484.
000019366 962__ $$r16048
000019366 980__ $$aPAPER