1.

The effective width of cold-formed steel sections is given by

A. b<sub>e</sub>/b = (f<sub>cr</sub>/f<sub>y</sub>)[1-0.22‚àö(f<sub>cr</sub>/f<sub>y</sub>)].
B. b<sub>e</sub>/b = (f<sub>cr</sub>/f<sub>y</sub>)[1+0.22‚àö(f<sub>cr</sub>/f<sub>y</sub>)].
C. b<sub>e</sub>/b = (f<sub>y</sub>/f<sub>cr</sub>)[1-0.22‚àö(f<sub>cr</sub>/f<sub>y</sub>)].
D. b<sub>e</sub>/b = (f<sub>cr</sub>/f<sub>y</sub>)[1+0.22‚àö(f<sub>y</sub>/f<sub>cr</sub>)].
Answer» B. b<sub>e</sub>/b = (f<sub>cr</sub>/f<sub>y</sub>)[1+0.22‚Äö√Ñ√∂‚àö‚Ć‚àö‚àÇ(f<sub>cr</sub>/f<sub>y</sub>)].


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