ABSTRACT
Engineered cementitious composite (ECC) material is a material with good toughness, which can be widely used in building structure reinforcement. Reinforced concrete columns are widely used, but many have been in disrepair for a long time and have potential safety hazards. To explore the strengthening effect of ECC materials on reinforced concrete columns, the finite element software OpenSees is used to simulate the low-cycle repeated test of reinforced concrete columns strengthened with ECC to study the impact of ECC strengthening on the seismic performance of reinforced concrete columns, and to compare with the structure without strengthening. The results show that the ultimate bearing capacity and displacement of reinforced concrete columns can be effectively improved by strengthening reinforced concrete columns with ECC materials. The reinforcement method is convenient in construction and has a good effect, which can be widely used in the reinforcement field of building structures.
