Experimental and Numerical Study of UHPFRC Continuous Deep Beams with Openings

To study the performance of UHPFRC continuous deep beams with openings, experimental and numerical investigations have been carried out. The test program included seven in addition to one similar solid beam. variables were ratio transverse reinforcement position, height, width opening. results showed that failure mode two-span depends mainly on position size opening shear span. occurs diagonal strut between support applied force through edges. maximum spacing stirrups (sv,max) ACI 318-2019 was not suitable for UHPFRC. Providing 129% greater than sv,max had a slight effect load. Web openings 20% beam height reduced load by 31.6% 43.0% compared For specimens same increasing about 75% more 27.8%. proposed 3-D model successfully predicted beams.