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Unformatted text preview: of the global Euler buckling load, ( P cr ) column . (b) Determine the local plate buckling load, ( P cr ) plate . (c) Replace now the open channel section with a closed rectangular section by adding (welding) additional top plate with the same thickness, h . How much will the global and local buckling load increase? (d) For the rectangular section, can you come up with an optimal solution in which the local and global buckling loads are the same? Here, keep the length of the anges ( b 1 and b 2 ) unchanged, but change the thickness of the section. (e) What will be the percentage of weight advantage and possible gain or loss in strength? 2...
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 Fall '10
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