000013169 001__ 13169
000013169 005__ 20161114160330.0
000013169 04107 $$aeng
000013169 046__ $$k2009-06-22
000013169 100__ $$aAzarbakht, A.
000013169 24500 $$aComparison of structural seismic response based on real and spectrum compatible near-source ground motion records

000013169 24630 $$n2.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013169 260__ $$bNational Technical University of Athens, 2009
000013169 506__ $$arestricted
000013169 520__ $$2eng$$aA relatively large set of single-degree-of-freedom systems, for different period, damping and backbone curves, are selected and subjected to two different sets of ground motion records. The first set of ground motion records is consisting of 31 near-source strikenormal ground motion components recorded under forward directivity conditions from four different earthquakes. The 31 prescribed real records are used as “seeds” to generate the second set of ground motion records which are compatible to the median response spectrum of the first set of records. The single-degree-of-freedom systems response is calculated, then, for the two prescribed sets of ground motion records in different levels of ground motion intensities. Recently, this kind of nonlinear analysis, which is called Incremental Dynamic Analysis (IDA), is widely used by many researchers. The nonlinear structural seismic response, for the two sets of ground motion records, is statistically compared to identify the differences which are made from the spectrum matching process into the structural seismic response. The results show that the seismic structural capacity in terms of intensity measure based on the spectrum compatible records is biased. On the other hand, the seismic structural capacity in terms of displacement ductility is statistically un-biased.

000013169 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013169 653__ $$aIDA analysis, SDOF system, Bias, Spectrum compatible ground motion record, Intensity measure, Displacement ductility. Abstract. A relatively large set of single-degree-of-freedom systems, for different period, damping and backbone curves, are selected and subjected to two different sets of ground motion records. The first set of ground motion records is consisting of 31 near-source strikenormal ground motion components recorded under forward directivity conditions from four different earthquakes. The 31 prescribed real records are used as “seeds” to generate the second set of ground motion records which are compatible to the median response spectrum of the first set of records. The single-degree-of-freedom systems response is calculated, then, for the two prescribed sets of ground motion records in different levels of ground motion intensities. Recently, this kind of nonlinear analysis, which is called Incremental Dynamic Analysis (IDA), is widely used by many researchers. The nonlinear structural seismic response, for the two sets of ground motion records, is statistically compared to identify the differences which are made from the spectrum matching process into the structural seismic response. The results show that the seismic structural capacity in terms of intensity measure based on the spectrum compatible records is biased. On the other hand, the seismic structural capacity in terms of displacement ductility is statistically un-biased.

000013169 7112_ $$aCOMPDYN 2009 - 2nd International Thematic Conference$$cIsland of Rhodes (GR)$$d2009-06-22 / 2009-06-24$$gCOMPDYN2009
000013169 720__ $$aAzarbakht, A.
000013169 8560_ $$ffischerc@itam.cas.cz
000013169 8564_ $$s367296$$uhttps://invenio.itam.cas.cz/record/13169/files/CD225.pdf$$yOriginal version of the author's contribution as presented on CD, section: Wave propagation and near source effects - i.
000013169 962__ $$r13074
000013169 980__ $$aPAPER