• effective parameters in the response of sdof rc frames under consecutive seismic excitations

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1393/11/01
    • تاریخ انتشار در تی پی بین: 1393/11/01
    • تعداد بازدید: 686
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     strength and stiffness degradation are important phenomena which affect the behavior of rc frames under seismic actions more specifically in the case of consecutive earthquakes. this paper study the effects of consecutive earthquakes on one story rc frames considering various dynamic properties and hysteresis behaviors. to allow for inherent uncertainties in earthquake and frame characteristic incremental dynamic analysis (ida) is utilized. the value of structural transient and residual drift ratios are evaluated as indicators of critical structural performance. it is concluded that consecutive excitations may result in an unacceptable lateral displacements as compared to individual earthquakes, which depends on the characteristics of the structure and the size of the earthquakes. further studies are required on the different seismic excitations intensity and multi-story rc frames to better understanding repeated earthquake effects on structural response and mean annual frequency of exceedance.

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