Cyclic behavior of older concrete columns reinforced with high-performance fiber reinforced cementitious composites

Abstract

Many older existing reinforced concrete (RC) buildings were designed without considering seismic loads. In such buildings, columns may be the most vulnerable element because they generally have insufficient reinforcement details that do not meet current code requirements. The objective of this study is to explore the potential of using high-performance fiber reinforced cementitious composites (HPFRCC) for lightly reinforced columns. Experimental studies were conducted with full scaled specimens. The cyclic behavior of columns was improved by using HPFRCC. In addition, the onset of damage states and failure were delayed by using HPFRCC.