The possibility to use a new vector-valued ground motion intensity measure (IM) is analyzed; it is based on the spectral acceleration at first mode (Sa) and a parameter proxy for the spectral shape, namely N(p). The potential of the vector < Sa, N(p)> is explored by efficiency comparison with other [Ms. It will be illustrated how the form of the vector < Sa, N(p)> may represent an improvement in predicting the seismic response in terms of ductility, dissipated hysteretic energy and Park and Ang damage index for nonlinear single degree of freedom (SDOF) structures subjected to ordinary, narrow-band and near-source pulse-like records.
Evaluating a new proxy for spectral shape to be used as an intensity measure / E., B., Iervolino, I., Manfredi, G.. - STAMPA. - (2008), pp. 1599-1606. (Seismic Engineering International Conference commemorating the 1908 Messina and Reggio Calabria Earthquake Reggio Calabria - Messina 24-27 giugno 2008).
Evaluating a new proxy for spectral shape to be used as an intensity measure
IERVOLINO, IUNIO;MANFREDI, GAETANO
2008
Abstract
The possibility to use a new vector-valued ground motion intensity measure (IM) is analyzed; it is based on the spectral acceleration at first mode (Sa) and a parameter proxy for the spectral shape, namely N(p). The potential of the vector < Sa, N(p)> is explored by efficiency comparison with other [Ms. It will be illustrated how the form of the vector < Sa, N(p)> may represent an improvement in predicting the seismic response in terms of ductility, dissipated hysteretic energy and Park and Ang damage index for nonlinear single degree of freedom (SDOF) structures subjected to ordinary, narrow-band and near-source pulse-like records.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
