SEISMIC DAMAGE ANALYSIS OF CONCRETE MEMBERS

Most existing structural seismic design methods are based on the limit design concepts to reflect maximum deformation attained, through the use of a ductility factor. But, according to the real structural seism ic damage, the ductility factor is just one indicator of complex struc ture nonlinear behavior, so it is limited in the information that it p rovides to designers. In this paper, one cumulative damage model of re inforced concrete under a reversal cycle load is described, based on t wo damage factors. This technique permits one to evaluate not only the damage based on ductility, but also the cumulative damage based on th e repetitive nature of the response.