An Investigation on the Use of Simulated Records in Derivation of Fragility Curves for RC Buildings in Duzce

2017-10-11
Probabilistic assessment of seismic damage for an individual building or a building stock in terms of fragility curves generally requires utilization of ground motion records either seismologically consistent with the probable hazard for the area studied or chosen arbitrarily without considering the seismological characteristics, but covering a range of intensity levels. In both alternatives, the analyst should select several records to be able to perform the probabilistic studies accurately. This condition might not be always satisfied for regions where there are limited number of seismologically consistent records available or for cases when there are less number of records available for high intensity levels. To compensate for this, region-specific stochastically simulated ground motions could be utilized. This study evaluates the suitability of simulated records in development of fragility curves for a typical mid-rise reinforced concrete (RC) moment-resisting frame sampled from existing Düzce buildings. The simulated records have been generated by using stochastic finite-fault methodology with regional seismicity parameters of Düzce. Utilizing a multi-degree-of-freedom model of the selected building, nonlinear time history analyses have been performed and fragility curves considering alternative intensity measures (i.e., PGV, ASI, HI and VSI) have been developed. To test the performance of the simulated records-based fragility curves, a set of ‘real’ records compatible with the seismological characteristics of the region was selected from NGA-West2 ground motion database of PEER, and ‘real’ records-based fragility curves were developed as well. The results have been displayed graphically to present the appropriateness of the simulated records in loss estimation studies.
Citation Formats
K. Kadaş, S. Karim Zadeh Naghshineh, A. Askan Gündoğan, M. A. Erberik, and A. Yakut, “An Investigation on the Use of Simulated Records in Derivation of Fragility Curves for RC Buildings in Duzce,” presented at the 4th International Conference on Earthquake Engineering and Seismology (11-13 October 2017), ANADOLU UNIVERSITY – Eskisehir/TURKEY, 2017, Accessed: 00, 2021. [Online]. Available: http://www.tdmd.org.tr/TR/Genel/4UDMSK/pdf2017/3197.pdf.