000013128 001__ 13128
000013128 005__ 20161114160328.0
000013128 04107 $$aeng
000013128 046__ $$k2009-06-22
000013128 100__ $$aBarbat A., H.
000013128 24500 $$aSeismic safety of reinforced concrete framed buildings designed according to ec-2 and ec-8

000013128 24630 $$n2.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013128 260__ $$bNational Technical University of Athens, 2009
000013128 506__ $$arestricted
000013128 520__ $$2eng$$aOne of the main objectives of the design of earthquake resistant structures is to ensure that these do not collapse when subjected to the action of strong motions. Modern codes include prescriptions in order to guarantee that the behavior of the elements and the whole structure is ductile. It is especially important for the designer to know the extent of damage that the structure will suffer under a specific seismic action, described by the design spectrum. To achieve this damage there are several static and dynamic nonlinear procedures. This paper presents a procedure for nonlinear static analysis in which the maximum displacements are determined based on the condition of satisfying a minimum value of a finite element based damage index. This procedure is validated by applying incremental dynamic analysis, and is used in the assessment of the response of a set of regular reinforced concrete buildings designed according to the EC-2/EC-8 prescriptions for high seismic hazard level. The results of nonlinear analysis allows the formulation of a new seismic damage index and of damage thresholds associated with five Limit States, which are used to calculate fragility curves and damage probability matrices for the performance point of the studied buildings. The results show that the design of earthquake resistant buildings according to the prescriptions of EC2/EC-8 not only ensures that the collapse is not reached, but also that the structural damage does not exceed the irreparable damage limit state.

000013128 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013128 653__ $$aDuctility, overstrength, behavior factor, non-linear analysis, fragility curves, objective damage index. Abstract. One of the main objectives of the design of earthquake resistant structures is to ensure that these do not collapse when subjected to the action of strong motions. Modern codes include prescriptions in order to guarantee that the behavior of the elements and the whole structure is ductile. It is especially important for the designer to know the extent of damage that the structure will suffer under a specific seismic action, described by the design spectrum. To achieve this damage there are several static and dynamic nonlinear procedures. This paper presents a procedure for nonlinear static analysis in which the maximum displacements are determined based on the condition of satisfying a minimum value of a finite element based damage index. This procedure is validated by applying incremental dynamic analysis, and is used in the assessment of the response of a set of regular reinforced concrete buildings designed according to the EC-2/EC-8 prescriptions for high seismic hazard level. The results of nonlinear analysis allows the formulation of a new seismic damage index and of damage thresholds associated with five Limit States, which are used to calculate fragility curves and damage probability matrices for the performance point of the studied buildings. The results show that the design of earthquake resistant buildings according to the prescriptions of EC2/EC-8 not only ensures that the collapse is not reached, but also that the structural damage does not exceed the irreparable damage limit state.

000013128 7112_ $$aCOMPDYN 2009 - 2nd International Thematic Conference$$cIsland of Rhodes (GR)$$d2009-06-22 / 2009-06-24$$gCOMPDYN2009
000013128 720__ $$aBarbat A., H.$$iVielma J., C.$$iOller, S.
000013128 8560_ $$ffischerc@itam.cas.cz
000013128 8564_ $$s633124$$uhttp://invenio.itam.cas.cz/record/13128/files/CD174.pdf$$yOriginal version of the author's contribution as presented on CD, section: Seismic safety assessment of structures - i (MS).
000013128 962__ $$r13074
000013128 980__ $$aPAPER