سال انتشار: ۱۳۹۰

محل انتشار: ششمین کنفرانس بین المللی زلزله شناسی و مهندسی زلزله

تعداد صفحات: ۸

نویسنده(ها):

H Moghaddam – Professor, Sharif University of Technology, Iran
M.F Tafti – M.Sc., Sharif University of Technology, Iran
M Samadi – faculty member, Islamic Azad University, Mashhad Branch, Iran

چکیده:

the nonlinear force displacement curve of RC columns are presented in the current standards for seismic rehabilitation of existing buildings such as ASCE41 by two displacement based values of a and b that correspond to the loss of lateral and axial capacities respectively the ASCE41 presents the values of these two parameters as a function of the volumetric ration of transverse reinforcement a confinement index is proposed in this paper that accounts for the yield strength and arrangement of the transverse reinforcements as well.