Shear behaviour of ambient cured geopolymer concrete beams reinforced with BFRP bars under static and impact loads

The use of fiber reinforced polymer (FRP) bars in GeoPolymer Concrete (GPC) structures has drawn increasing attention recent years. application GPC with basalt (BFRP) reinforcements replacing Ordinary Portland cement (OPC) and steel leads to green sustainable constructions. Currently, very limited studies have been conducted investigate the performance beams BFRP under static loads, but no study on their impact loads reported yet open literature. In this study, ambient-cured were designed, cast tested loads. damage mode quantitative results such as midspan deflection, reinforcement strain, reaction forces recorded analysed. Test showed that spiral stirrups led superior both compared conventional rectangular stirrups. commonly used concrete material model *Mat_072R3 LS-DYNA was modified based test data material. With model, numerical models developed calibrated against results. Parametric carried out influences strength longitudinal stirrup ratios subjected It also found using compression better because shear vulnerable splitting