Forms used to make a concrete basement wall are shown. Each 4 ft wide form (into the page) is held together by two tie rods, one at the top and one at the bottom as indicated. Determine the tension force in the upper and lower tie rods. (Hint: consider only one side)
Concrete
Relevant data:
Liquid concrete specific weight = 150 lb/ft^3
Moment of inertia about centroid for rectangular area of base b and height h
Form
10 in