Test of High Performance Reinforced Concrete Beams with Web Openings Using Fly-Ash

The purpose of this study is to evaluate the flexural behavior of RC beams with web openings (HPRWO) that are constructed by using square steel tube, fibers and fly-ash. One regular RC beam with openings (HPRS) and three HPRWO specimens were manufactured and tested under monotonic loading. It was evaluated by flexural experiment of HPRWO through comparison of failure mode, load-deflection curves, ductility and ultimate load (Vu). Test results showed that the ultimate load of the HPRFPS specimens were approximately 11.2% to 51.3% better than that of the HPRS, in addition their ductility behavior was better than the HPRS.