A rectangular beam with beam dimensions b = 250mm, h =500mm, and d = h – 75mm. Use f’c = 21MPa, fy = 420MPa. Determine the following: a. Area of reinforcement considering maximum condition (mm2) b. Area of reinforcement considering minimum condition (mm2) c. Area of reinforcement considering balanced condition (mm2

Given a concrete column that would be required to support loads of Pu=400kips and Mu=50 kip-feet, we will determine the column interaction curve and decide if the column is adequate for this particular application. The column will be a 14”x14” square, tied column with #9 bars at the corners. The center of the reinforcement in each corner is 3” from each of the sides. The f’c of the concrete is 4 ksi and the reinforcement is Grade 60.  Determine if the column is acceptable for this application. Calculate the value of Mu and Pu.