In: Civil Engineering
Design a strap footing to support the two columns. These structural elements are spaced at a distance of 5.4 m center to center. Exterior column is 300 mm x 300 mm and carries a dead load of 250 KN and a live load of 300 KN. Interior column is also 350 mm x 350 mm in cross section and carries a dead load of 360 KN and a live load of 580 KN.
Use f'c = 21 MPa, fy = 276 MPa, and q-all net = 160 KPa. Assume weight of footing to be 9% of total load.