Two cover plates, each ½ in. thick, are welded to a W27 × 84 beam as shown. Assume σall = 24 ksi for both the beam and the plates. Given: P=163 kips Moment of inertia of the beam = 2850 in4 S = 213 in³ at D P A D C E 9 ft 9 ft B W27 X 84 in. Determine the required value of the length of the beam. (Round the final answer to two decimal places.) The required value of the length of the beam is ft.

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