Design a steel box structure (Figure P12–7) 4 ft wide 8 ft long made of plates to be used to protect

Design a steel box organization (Figure P12–7) 4 ft broad  8 ft crave made of platters to be used to defend fabric workers occasion working in a encroach. That is, particularize a recommended inobservance of each platter. The profundity of the organization must be 8 ft. Assume the loading is from a policy load acting acrave the crave policys due to a wet stain (inobservance of 62.4 lb/ft3) and varies linearly delay the profundity. The lawful divergence of the platter type organization is 1 in. and the lawful strain is 20 ksi.