The Effect of Magnitude Mw and Distance Rrup on the Fragility Assessment of a Multistory RC Frame Due to Earthquake-Induced Structural Pounding

The effect of an intensity measure’s (IM’s) sufficiency property on the probabilistic assessment reinforced concrete (RC) structures due to floor-to-floor structural pounding conditions is examined. In first part this investigation, efficiency and properties 23 scalar IMs are verified. Then, magnitude Mw distance Rrup examined as elements in a vector with efficient IM evaluate whether they have any significant response. Subsequently, seismic demand models (PSDMs) developed using linear regression analyses based vector-valued IM. Fragility curves these PSDMs, influence evaluation minimum required separation gap dg,min More than two hundred nonlinear time history performed Cloud Analysis method. Seismic displacement demands that control global state structure, well probability pounding, results research indicate once or increased, fragility shifted greater values IM, exceedance certain performance level reduced. Also, predictive power seems be one Mw. On other hand, it revealed induce variabilities solutions for adequate between adjacent structures. Therefore, variation may lead, some cases, unacceptable evaluations capacity levels