A hollow box beam with height h = 16 in., width b 8 in., and constant wall thickness t 0.75 in. is shown in the figure. The beam is constructed of steel with yield stress σY = 32 ksi.
Determine the yield moment MY, plastic moment MP, and shape factor f.
![486_7a461bc5-a098-48c1-adcc-4735a61a50df.png](https://secure.tutorsglobe.com/CMSImages/486_7a461bc5-a098-48c1-adcc-4735a61a50df.png)