advanced intensity measures for predicting the ‎seismic collapse capacity of smrfs

Intensity measure (im) can quantify the intensity of a ground motion and serves as a link between the outputs of ground motion hazard analysis and the seismic response of structure to facilitate risk-based calculations. the im-based approach for collapse risk assessment can involve combination of the probability of collapse conditioned on ground motion properties with observing those ground motion properties. therefore, the ims describes with desirable featuresknown as efficiency and sufficiency. efficiency is a measure of the level of variability in the response or capacity of the structure obtained using different ground motions. while the sufficiency describes as ability of an im to estimate the response or capacity of the structure independently from ground motion properties such as the average shear-wavevelocity at the upper 30 m of soil (vs30), source-to-site distance (r) and earthquake magnitude (m). thus, the optimal im uses the small number of ground motions in the seismic analyses to estimate the structural response having a level of confidence, and it can reduce the complexity of record selection (baker and cornell, 2008). recently, advanced scalarvaluedand vector-valued ims have been used to predict the collapse capacity of smrfs equipped with viscous dampers compared with other well-known ims (jamshidiha et al., 2018; jamshidiha and yakhchalian, 2019). these ims include information about the spectral shape and ground motion duration, and have better performance.