Premium
The effective period and damping of a class of hysteretic structures
Author(s) -
Iwan Wilfred D.,
Gates Nathan C.
Publication year - 1979
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290070302
Subject(s) - ductility (earth science) , cracking , stiffness , structural engineering , range (aeronautics) , hysteresis , materials science , engineering , physics , composite material , condensed matter physics , creep
This paper presents the results of a numerical investigation in which the maximum response of six hysteretic systems is calculated for an ensemble of twelve earthquakes. Inelastic response spectra are constructed for a range of response ductility. An effective linear period and damping are calculated for each system and ductility by determining those parameters which minimize an RMS response spectrum error. Conclusions are presented concerning the effects of deterioration, stiffness degradation, cracking and ductility on the effective linear system parameters.