Vierendeel girder and frame - Engineering Class Home Pages
Vierendeel girder and frame - Engineering Class Home Pages
Vierendeel girder and frame - Engineering Class Home Pages
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Design end chords<br />
Joint load<br />
P = w x 21’ = 0.5klf x 21’ P = 10.5 k<br />
Max. shear<br />
V = 11 P /2 = 11 x 10.5 / 2 V = 58 k<br />
Chord shear (2 chords)<br />
Vc = V/2 = 58 k / 2 Vc = 29 k<br />
Chord bending<br />
Mc = Vc e/2 = 29x 21’x12”/2 Mc= 3654 k”<br />
Moment of Inertia required<br />
I = Mc c /F b = 3654 x 8”/27.6 ksi I = 1059 in 4<br />
Check mid-span compression<br />
Global moment<br />
M = w L 2 /8 = 0.5 x 252 2 /8 M = 3969 k’<br />
Compression (d’=14’–16”=12.67’)<br />
C = M/d’= 3969 k’/ 12.67 C = 313 k<br />
<strong>Vierendeel</strong> <strong>girder</strong> <strong>and</strong> <strong>frame</strong> Copyright Prof Schierle 2012 15
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