The behaviour of the EPP-SDOF model under seismic actions is analysed herein by different 'damage functionals' to define collapse under cyclic loading. In particular, the damage functionals based on the concept of maximum ductility and dissipated plastic energy are first compared. Afterwards the methods of Banon and Veneziano, Park and Ang and the linear cumulative law of plastic fatigue are reviewed and extensively analysed. Comparisons in the case of simple cyclic histories and in terms of acceleration collapse spectra are carried out with reference to significant earthquake records. In particular, it is shown in which cases the damage functionals of Banon and Veneziano, Park and Ang and the linear cumulative law of plastic fatigue, completely defined by the value of a single parameter, degenerate in the limit methods of ductility or dissipated energy and in which cases they provide similar results.
The Use of Damage Functionals In Earthquake Engineering - A Comparison Between Different Methods / Cosenza, Edoardo; Manfredi, Gaetano; Ramasco, Roberto. - In: EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS. - ISSN 0098-8847. - STAMPA. - 22:(1993), pp. 855-868. [10.1002/eqe.4290221003]
The Use of Damage Functionals In Earthquake Engineering - A Comparison Between Different Methods
COSENZA, EDOARDO;MANFREDI, GAETANO;RAMASCO, ROBERTO
1993
Abstract
The behaviour of the EPP-SDOF model under seismic actions is analysed herein by different 'damage functionals' to define collapse under cyclic loading. In particular, the damage functionals based on the concept of maximum ductility and dissipated plastic energy are first compared. Afterwards the methods of Banon and Veneziano, Park and Ang and the linear cumulative law of plastic fatigue are reviewed and extensively analysed. Comparisons in the case of simple cyclic histories and in terms of acceleration collapse spectra are carried out with reference to significant earthquake records. In particular, it is shown in which cases the damage functionals of Banon and Veneziano, Park and Ang and the linear cumulative law of plastic fatigue, completely defined by the value of a single parameter, degenerate in the limit methods of ductility or dissipated energy and in which cases they provide similar results.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.