Solve each of the following problem indicated below. Present your complete-detail solution including the free- body diagrams. Box your only final answer, otherwise.
Extracted text: A rectangular beam having a width of 300 mm and an effective depth of 450 mm. It is reinforced with 4-36 mm in diameter bars. fy = 270 MPa. Es = 200000 MPa. fc' = 28 MPa O Compute the depth of compression block for a balanced condition. ® Compute the nominal moment capacity of the beam. 3 If the value of fc' is increased by 25%, compute the percentage of the increased nominal moment capacity of the beam.