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旧 2009-09-09, 07:36 PM   #1
huangyhg
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默认 info needed from aisc lrfd manual

info needed from aisc lrfd manual
i'm looking to do some prelim work over the weekend but left my manual at work.
we're looking to model a pedestrian bridge similar to the alexanderstrasse footbridge in germany, so box shaped unbraced trusses. looking at about 6' high columns and 5' wide beams.
what i need right now are effective length factors for the x and y axis. i know the lrfd manual has a graph (i believe it's in section c of the commentary) to use but i forgot what the necessary info was to use it so i can probably reply back if you need more info.
otherwise i might use 1.2 for now.
-alan
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