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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Sport Center, University of California Davis<br />
Architect: Perkins & Will<br />
Engineer: Leon Riesemberg<br />
Given the residential neighborhood, a major objective was to<br />
minimize the building height by several means:<br />
• The main level is 10’ below grade<br />
• L<strong>and</strong>scaped berms reduce the visual façade height<br />
• Along the edge the roof is attached to bottom chords<br />
to articulates the façade <strong>and</strong> reduce bulk<br />
Assume<br />
Bar cross sections 16”x16” tubing, 3/16” to 5/8” thick<br />
Frame depth d = 14’ (max. allowed for transport)<br />
Module size: 21 x 21 x 14 ft<br />
Width/length: 252 x 315 ft<br />
Structural tubing F b = 0.6 Fy = 0.6x46 ksi F b = 27.6 ksi<br />
DL = 22 psf<br />
LL = 12 psf (60% of 20 psf for tributary area > 600 ft 2 )<br />
� = 34 psf<br />
Note: two-way <strong>frame</strong> carries load per relative deflection ratio:<br />
r = L1 4 /(L1 4 +L2 4 ) = 315 4 /(315 4 +252 4 ) r = 0.71<br />
Uniform load per bay<br />
w = 0.71 x 34 psf x 21’/1000 w = 0.5 klf<br />
<strong>Vierendeel</strong> <strong>girder</strong> <strong>and</strong> <strong>frame</strong> Copyright Prof Schierle 2012 14
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