000013151 001__ 13151
000013151 005__ 20161114160329.0
000013151 04107 $$aeng
000013151 046__ $$k2009-06-22
000013151 100__ $$aKreslin, M.
000013151 24500 $$aOn seismic assessment of rc buildings - a case study of an actual irregular structure

000013151 24630 $$n2.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013151 260__ $$bNational Technical University of Athens, 2009
000013151 506__ $$arestricted
000013151 520__ $$2eng$$aIn the paper, a practice-oriented procedure for the seismic assessment of building structures is summarized. It is based on the N2 method, which has been implemented in Eurocode 8 for pushover based nonlinear analysis. The procedure is applied to an existing multi– storey reinforced concrete (RC) building which is asymmetric in plan and irregular in elevation. The structural system consists of structural walls and frames. The building was designed in 1962 for gravity loads and minimum horizontal loading (2% of the total weight). The main results presented in terms of global and local seismic demands are compared with the results of non-linear dynamic time-history analyses. The capacities of structural elements are determined according to Eurocode 8-3. As expected, the structure would fail when subjected to the design seismic action according to Eurocode 8. The most critical is the shear capacity of some structural walls in the lower stories. If the shear capacity of the structural elements was adequate, the structure would be able to survive the design ground motion according to Eurocode 8 in spite of very low level of design seismic forces. Due to large uncertainties which are involved both in determination of the seismic demand and capacity, only rough estimates of the seismic behaviour can be obtained.

000013151 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013151 653__ $$aReinforced Concrete Buildings, Seismic Assessment, Eurocode 8, N2 Method, Pushover Analysis, Non-linear Dynamic Analysis, Seismic Capacity, Torsion. Abstract. In the paper, a practice-oriented procedure for the seismic assessment of building structures is summarized. It is based on the N2 method, which has been implemented in Eurocode 8 for pushover based nonlinear analysis. The procedure is applied to an existing multi– storey reinforced concrete (RC) building which is asymmetric in plan and irregular in elevation. The structural system consists of structural walls and frames. The building was designed in 1962 for gravity loads and minimum horizontal loading (2% of the total weight). The main results presented in terms of global and local seismic demands are compared with the results of non-linear dynamic time-history analyses. The capacities of structural elements are determined according to Eurocode 8-3. As expected, the structure would fail when subjected to the design seismic action according to Eurocode 8. The most critical is the shear capacity of some structural walls in the lower stories. If the shear capacity of the structural elements was adequate, the structure would be able to survive the design ground motion according to Eurocode 8 in spite of very low level of design seismic forces. Due to large uncertainties which are involved both in determination of the seismic demand and capacity, only rough estimates of the seismic behaviour can be obtained.

000013151 7112_ $$aCOMPDYN 2009 - 2nd International Thematic Conference$$cIsland of Rhodes (GR)$$d2009-06-22 / 2009-06-24$$gCOMPDYN2009
000013151 720__ $$aKreslin, M.$$iFajfar, P.
000013151 8560_ $$ffischerc@itam.cas.cz
000013151 8564_ $$s3580948$$uhttps://invenio.itam.cas.cz/record/13151/files/CD203.pdf$$yOriginal version of the author's contribution as presented on CD, section: Irregular structures.
000013151 962__ $$r13074
000013151 980__ $$aPAPER