An adaptive version of the capacity spectrum method for displacement-based seismic assessment of steel frames is presented. The procedure can improve the efficiency of estimation of seismic demand and avoids the problems of no convergence and multiple solutions because it is non-iterative. Reliability of the procedure is verified by means of nonlinear dynamic analysis on structures subjected to earthquake records. The results are finally compared with the seismic response estimated with nonlinear static procedures proposed in FEMA 440-ATC-55.
An Adaptive Capacity Spectrum Method for Displacement-Based Seismic Assessment of Steel Frames
FERRAIOLI, Massimiliano;AVOSSA, Alberto Maria;MANDARA, Alberto
2012
Abstract
An adaptive version of the capacity spectrum method for displacement-based seismic assessment of steel frames is presented. The procedure can improve the efficiency of estimation of seismic demand and avoids the problems of no convergence and multiple solutions because it is non-iterative. Reliability of the procedure is verified by means of nonlinear dynamic analysis on structures subjected to earthquake records. The results are finally compared with the seismic response estimated with nonlinear static procedures proposed in FEMA 440-ATC-55.File in questo prodotto:
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