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3 report(s) found for Michael G. Barker
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Study of the Effects of Wind Power and Vortex-Induced Vibrations to Establish Fatigue Design Criteria for High-Mast Poles (Aug 2011, MPC-11-240)
Jay Puckett, Rebecca Johnson, and Michael Barker

In a previous related study conducted by the University of Wyoming (Phase I), fatigue cracking of traffic signal poles was determined to be related to the average wind speed (Price 2009). However, high-mast data did not indicate the same direct average wind speed fatigue cracking relationship behavior....

Serviceability Limits and Economical Steel Bridge Design (Dec 2008, Interim Report, MPC-08-206)
Michael G. Barker, Lorehana Gandiaga, and James Staebler

High Performance Steel (HPS) is a superior material with higher yield strength, improved weldability, greater levels of toughness, and improved weathering resistance that can lead to more economical bridges than conventional steel bridge designs. AASHTO Load and Resistance Factor Design (LRFD) provisions...

Use of Wind Power Maps to Establish Fatigue Design Criteria for Traffic Signal and High-Mast Structures (Dec 2008, MPC-08-207)
Richard L. Price, Jay A. Puckett, and Michael G. Barker

Recent design requirements for traffic signal and sign structures incorporated fatigue load criteria related to wind that are producing significant increases in size and cost. The Fourth Edition of the AASHTO Luminaire and Traffic Signal Specification (2002 with interims) specification is a significant...

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