W12 x 152 12 ft W21 x 50 W21 × 50 (I = 984 in*) A 12 ft W21 × 50 |B W21 x 50 W12 x 170 12 ft -30 ft -30 ft-
W12 x 152 12 ft W21 x 50 W21 × 50 (I = 984 in*) A 12 ft W21 × 50 |B W21 x 50 W12 x 170 12 ft -30 ft -30 ft-
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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(a) Determine the effective length factor for column AB of the unbraced frame shown in Fig. 7.8, assuming that we have elastic behavior and that all of the other assumptions on which the alignment charts were developed are met. PD = 450 k, PL = 700 k, Fy = 50 ksi. Assume that column AB is a W12 x 170 and the columns above and below are as indicated on the figure.
(b) Repeat part (a) if inelastic column behavior is considered.
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