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Section Optimization Competition. Baseline model. C-section 9 in. web, 3 in. flange, ½ in. lips t=0.068 in. f y = 50 ksi A = 1.088 in 2 M y = 151 kip-in. Loading and conditions pure flexural loading (beam) – pin supports braced at 96 in. Baseline response. A = 1.088 in 2 My =
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Baseline model • C-section • 9 in. web, 3 in. flange, ½ in. lips t=0.068 in. • fy = 50 ksi • A = 1.088 in2 • My = 151 kip-in. • Loading and conditions • pure flexural loading (beam) – pin supports • braced at 96 in.
A = 1.088 in2 My = Mcrl = Mcrd = Mcre (96 in.) = Mne = Mnl = Mnd = Mn = Yes 151 kip-in. 136 kip-in. 95 kip-in. 140 kip-in. 118 kip-in. 105 kip-in. 99 kip-in. 99 kip-in. Ben Schafer entrant Comment: 9x3x0.5 C-section – nothing fancy
Competition • You (and your computer partners) have untilxxx pm to develop the best beam you can. • Key constraints • A must be within 1% of 1.088 in2 • Mcre is taken at 96 in., fy=50 ksi • When you have a beam you would like to enter on the big board, let me know. • Raise your hands or speak up if you have any questions...
A = 1.088 in2 My = Mcrl = Mcrd = Mcre (96 in.) = Mne = Mnl = Mnd = Mn = XXYesXX xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xx kip-in. xx kip-in. XXXX entrant Comment: XXXX
A = 1.088 in2 My = Mcrl = Mcrd = Mcre (96 in.) = Mne = Mnl = Mnd = Mn = XXYesXX xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xx kip-in. xx kip-in. XXXX entrant Comment: XXXX
A = 1.088 in2 My = Mcrl = Mcrd = Mcre (96 in.) = Mne = Mnl = Mnd = Mn = XXYesXX xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xx kip-in. xx kip-in. XXXX entrant Comment: XXXX
A = 1.088 in2 My = Mcrl = Mcrd = Mcre (96 in.) = Mne = Mnl = Mnd = Mn = XXYesXX xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xx kip-in. xx kip-in. XXXX entrant Comment: XXXX
A = 1.088 in2 My = Mcrl = Mcrd = Mcre (96 in.) = Mne = Mnl = Mnd = Mn = XXYesXX xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xxx kip-in. xx kip-in. xx kip-in. XXXX entrant Comment: XXXX