Static Resistance of Reinforced Concrete Beams through the Elastic and Plastic Ranges.

A theory is presented for determining the static resistance characteristics of simply supported reinforced concrete beams. Four loading conditions are considered in the presentation 1 a concentrated load at mid-span, 2 equal concentrated loads at the third points, 3 equal concentrated loads at the sixth points, and 4 a uniform load on the entire span length. The theoretical plastic region is shown for each of the four loading conditions. Static test data for 11 beams is reported which includes the first three loading conditions listed above. Load-deflection curves are plotted for each of the 11 specimens and are compared with theoretical calculations. Author