Residual Shear Capacity of RC Beams without Stirrups after Fire Exposure

To investigate the shear capacity and failure mechanism of RC beams after fire exposure, fourteen full-scale without stirrups were tested at ambient temperature exposure. Three parameters, including loading ratio, span-to-depth ratio longitudinal reinforcement considered in static load tests. The deterioration bearing diagonal section exposure was experimentally, numerically theoretically revealed, a calculation formula for post-fire proposed. results show that stiffness specimens decreased strength loss increased with time. fire-damaged as span λ increased, λ. Compared theoretical experimental stirrups, average absolute errors 10.48%. Therefore, this can better calculate residual beam