AWAM International Conference on Civil Engineering 2019 (AICCE'19) - Nibong Tebal - Malaysia (2019-08-21)

Parameters Affecting Load Capacity of Reinforced Concrete Ring Deep Beams
Most codes of practice, like ACI 318-14, require the use of strut-and-tie modeling to ana-lyze and design reinforced concrete deep beams. Though, investigations that conducted on deep beams did not include ring deep beams of influential parameters. This work presents an analytical parametric study using strut-and-tie modeling stated by ACI 318-14 to pre-dict load capacity of 20 reinforced concrete ring deep beams with different parameters. The parameters took into consideration in the current work were ring daimeter (Dc), number of support (NS), width of ring beam (bw), concrete compressive strength (f'c) and amount of vertical shear web reinforcement (pv). It was found that the load capacity decreases by about (14-36)% when ring daimeter increases by about (25-75)%. It was also found that load capacity increases by about (62-189)% when number of support increases by about (33-100)%, while the load capacity increases by about (25-75)% when the beam ring width increases by about (25-75)%. Finally, it was found that load capacity increases by about (24-76)% when compressive strength increases by about (24-76)%, while the load capacity increases by about (5-16)% when Bp increases by about (25-75)%.
Professor Khattab Abdul-Razzaq