Effects of Floor System on Progressive Collapse Behavior of RC Frame Sub-Assemblages

The ability to predict the resistance of reinforced concrete (RC) structures progressive collapse as a result an interior column removal has become need in structural design. In general, three mechanisms characterize structure collapse, flexural action, compressive arch and tension catenary action. objective this study is investigate effects floor system configurations on collapse-resistance RC frame sub-assemblages amount energy dissipated each mechanism. This investigation employs fiber element-based modeling technique present findings into beam size reinforcement details dissipation beam-column with four equal spans. Three different span lengths 5, 6, 7 m were considered. A total 38 designs for gravity loads performed accordance ACI 318-14 design code. employed was validated utilized by authors previously published works. shows that presence slab are critical they significantly affect failure pattern sub-assemblage frames. Moreover, found increase around 28%.