PLEASE HELP ME! DO NOT post the same explanation with the wrong value. Please help me solve this I would be very grateful and I WILL LEAVE LIKES IF COMPLETED. I have attached the question and all relevant information please solve with the attached information.
I) minimum cost of beam system when W 21 x 62 is free
II) most economic cost of the beam system if the sections W 21 x 62 were not freely available
III) most economical cost of the column system
Use steel with Fy = 50 ksi. Allowable deflection is 1/360 of the span of the beam. Assume that the sections W 21 x 62 are available to you for no cost. Assume the cost of steel for any other sections = $ 4.2/lb. (finished). In case you do not find a relevant constant for a loading condition (Cb, Cv or C1), use the constant that corresponds to the worst case scenario. (NOTE: The only intent of this instruction is to simplify the problem. Calculated values of the constants MUST be used in real design.)