000022131 001__ 22131
000022131 005__ 20170622145958.0
000022131 04107 $$aeng
000022131 046__ $$k2015-05-25
000022131 100__ $$aLiolios, Angelos A.
000022131 24500 $$aA COMPUTATIONAL INVESTIGATION FOR THE SEISMIC RESPONSE OF RC STRUCTURES STRENGTHENED BY CABLE ELEMENTS

000022131 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022131 260__ $$bNational Technical University of Athens, 2015
000022131 506__ $$arestricted
000022131 520__ $$2eng$$aA numerical investigation is presented for the seismic analysis of existing reinforced concrete (RC) structures, which have been damaged due to extreme actions and are seismically upgraded by cable elements (tension-ties). A double discretization, in space by the Finite Element Method and in time by a direct incremental approach, is used. The unilateral behavior of the cable-elements, which can undertake tension stresses only, is strictly taken into account and results to inequality constitutive conditions. So, in a first numerical approach, a non-convex linear complementarity problem is solved in each time-step. Alternatively, in a second numerical approach, an incremental problem formulation and treatment is applied. The decision for the optimal cable-strengthening scheme in praxis problems of RC structures under multiple earthquakes excitation can be obtained on the basis of computed damage indices. A calibration of the numerical approaches is realized in a typical example problem by comparing the computational results with available experimental ones. It is shown that cable strengthening has significant effects on the earthquake response and, hence, can be used effectively for the seismic upgrading of existing RC structures.

000022131 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022131 653__ $$aSeismic Upgrading and Strengthening of RC Structures, Cable-braced Systems, Damage Indices.

000022131 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022131 720__ $$aLiolios, Angelos A.
000022131 8560_ $$ffischerc@itam.cas.cz
000022131 8564_ $$s442634$$uhttp://invenio.itam.cas.cz/record/22131/files/C1290.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
.
000022131 962__ $$r22030
000022131 980__ $$aPAPER