| Abstrakt: |
This work contains a parametric analysis utilizing finite elements (FE) of twenty reinforced concrete elliptical deep beams. In this study, the diameters (keeping the same ratio between the large to the small diameter), depth, concrete compressive strength, and loading type (partial and full) were all considered. Using a center partial uniformly distributed loading (UDL) of 40%, 80%, and 100% of span length (L) enhanced the capacity of load by 28, 36.5, and 60%, respectively, as compared to corresponding concentrated central loading. The capacity of load decreased by about 4.2–12.5%., while the deflection, torsional moments, negative and positive moments increased by about 10.5–32.3%, 2.5–6%, 3.3–8.2% and 2.8–6.6% respectively, when diameter increased by 7–21%. In case that the beam depth is extended by 6–18.2%, the capacity of the load, torsional, negative, and positive moments rose by about 7–21%, 6.4–19.4%, 7.3–22%, and 7–20.5%, respectively, though the deflection dropped by approximately 4–10%. When the width of the beam grew by 20–60%, the capacities for load, deflection, and moments of torsion besides negative and positive moment rose by about 28–91.3%, 2.23–9%, 31.5–103%, 25–71.7%, and 29–93.5%, respectively. Finally, when the compressive strength of the beam rose by 5.5–26.6%, the load capacity, deflection, torsional moments, negative moment, and positive moment increased by roughly 4.4–26%, 1.6–11.6%, 4.2–25.6%, 4.23–25.4%, and 4.3–25.7%, respectively. [ABSTRACT FROM AUTHOR] |
