نوع مقاله : یادداشت پژوهشی
1 دانشکده مهندسی عمران، دانشگاه تبریز
2 دانشکده مهندسی عمران، دانشگاه صنعتی اصفهان
عنوان مقاله [English]
With increasing population and necessity of building construction in the least time, we need to use the precast structures. However, due to some problems, the precast industry has not reached to its whole potential yet. The main problem is due to their precast concrete connections. The reduction factor is an important factor in linear analysis that indicates inelastic behaviors of structure such as resistance and ductility in nonlinear stage. In spite of many studies to obtain reduction factor of monolithic structures, we have a little information about this factor in precast ones. Hence, determining this factor is necessary for this type of structures. In this research, moment resistant precast systems in 4, 6 and 8 stories with 3 and 5 bays were investigated. The effects of two types of typical beam to column connections were evaluated. Nonlinear static pushover in three forms of triangular, uniform and modal was applied. The results indicate that precast concrete moment frames have reduction factor less than equivalent in site moment frames.