Why is the answer 63 kips (ASD) / 94 (LRFD) and not 125 kips (ASD) / 187 (LRFD)???
When to use the maximum uniform load given by the table and when to use the Vn/ factor of safety (the value given at the bottom of the column on pg. 3-74 / AISC manual)???
Thank you!
NCEES 2008 problem #501
Started by
PEin2010
, Oct 27 2010 09:24 PM
3 replies to this topic
#2
MTeeden
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Posted 27 October 2010 - 10:15 PM
QUOTE (PEin2010 @ Oct 27 2010, 05:24 PM) <{POST_SNAPBACK}>
Why is the answer 63 kips (ASD) / 94 (LRFD) and not 125 kips (ASD) / 187 (LRFD)???
When to use the maximum uniform load given by the table and when to use the Vn/ factor of safety (the value given at the bottom of the column on pg. 3-74 / AISC manual)???
Thank you!
When to use the maximum uniform load given by the table and when to use the Vn/ factor of safety (the value given at the bottom of the column on pg. 3-74 / AISC manual)???
Thank you!
Don't have the question in front of me, but I'm pretty sure that shear failure governs in that case. Max shear is 94 kips
#4
wow
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Posted 26 October 2011 - 01:54 PM
If the load were fixed at the center, then you would multiply the allowable shear load by 2. But this is a MOVING load, so if the load were placed nearest to one of the ends, then shear governs (62.5 k) as the allowable shear force would equal the applied load.
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