1. For the braced column section and the loading shown in Figure P10.20, determine the limit states for which the column should be designed. Use A992 steel 2. Design a beam of A36 steel for the loads in Figure P11.1. Determine the maximum unbraced length of beam to satisfy the requirement of adequate lateral support. 3. Design a simply supported 20 ft span beam of A992 steel having the following concentrated loads at the midspan. Service dead load = 10 k Service live load = 25 k Determine the maximum unbraced length of beam to satisfy the requirement of adequate lateral support.