000021855 001__ 21855
000021855 005__ 20170622131308.0
000021855 04107 $$aeng
000021855 046__ $$k2017-06-15
000021855 100__ $$aChatzopoulou, Giannoula
000021855 24500 $$aEXPERIMENTAL AND NUMERICAL INVESTIGATION OF STEEL SEISMIC LINKS

000021855 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021855 260__ $$bNational Technical University of Athens, 2017
000021855 506__ $$arestricted
000021855 520__ $$2eng$$aSeismic-links are energy dissipative structural elements developed for earthquake-resistant steel structures. The link is designed to experience severe inelastic deformations, absorbing significant part of seismic energy, so that the rest of the structure remains intact. In the present paper, experimental testing and numerical simulations on horizontal seismic links are reported, subjected to strong full-reversing cyclic loading. The link specimens are subjected to combined shear and bending, representing the actual conditions acting on a seismic link during severe earthquake action. Eighteen (18) large scale tests are performed by means of displacement-controlled conditions for different steel material grades (S355, S700), lengths and section types. Three types of cross sections are under consideration: H-shape (HEA) S355 steel, circular hollow section (CHS) S700 steel and rectangular hollow section (RHS) S700 steel. Loading histories with both constant and increasing amplitude loading, which follows the ECCS No45 testing protocol, are applied. A custom-made experimental set-up has been followed, which employs a special-purpose frame that induces a combination of bending and shear deformation on the steel link specimen. Several DCDT and wire position transducers, inclinometers and strain gages are used to monitor the specimens’ behavior. Three dimensional numerical models have also been employed for the numerical simulation of the tests. The models were developed in the commercial finite element software ABAQUS/Standard. Their key feature is the adoption and calibration of an advanced and efficient plasticity model, capable of simulating both the plastic plateau upon initial yielding and the Bauschinger effect under reverse loading. The constitutive model is calibrated using cyclic tests of steel material which is under consideration, and is capable of simulating the structural behavior of the link under repeated loading.

000021855 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021855 653__ $$a

000021855 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021855 720__ $$aChatzopoulou, Giannoula$$iPerdikaris, Philip$$iKaramanos, Spyros$$iPapatheocharis, Theocharis
000021855 8560_ $$ffischerc@itam.cas.cz
000021855 8564_ $$s117436$$uhttps://invenio.itam.cas.cz/record/21855/files/18157.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS02] Experimental measurements and numerical simulation on problems in the field of Earthquake
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000021855 962__ $$r21500
000021855 980__ $$aPAPER