Stability Design for the Crane Columns of the Wind Technology Testing Center
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Stability Design for the Crane Columns of the
Wind Technology Testing Center
LeMessurier ConsultantsCraig D. Blanchet, P.E.Eric M. Hines, PhD, P.E.
Richard A. Henige, Jr., P.E., S.E.
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Outline The Wind Technology Testing Center (WTTC) Stability Checks
Elastic System Stability Inelastic Crane Column Stability
What’s The Message? What’s Next?
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The Wind Technology Testing Center (WTTC)
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NWTC @ NRELNWTC @ NREL
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Mystic RiverMystic River
Char
les
Rive
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Rive
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Boston HarborBoston Harbor
GoogleGoogle
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Mystic RiverMystic River
Tobin
Brid
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Bunke
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Bunke
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GoogleGoogle
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GoogleGoogle
312 ft312 ft
144
ft14
4 ft
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TS #1TS #1TS #2TS #2TS #3TS #3
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Stability Analysis
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+/- 6
0 fe
et+/
- 60
feet
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Elastic System Stability
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Ignore Shear Deformations
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Inelastic Column Stability
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Pu Hu Elastic Inelastic(Fy = 42 ksi)
Inelastic(Fy = 63 ksi)
431 kips 21.6 k 4.09 1.03 1.28 / 1.49
358 kips 21.6 k 4.92 1.24 1.79
220 kips < 21.6 k 8.01 > 2.02 >2.92
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What’s The Message?
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What’s Next?