Closure to "Modified Plastic-Hinge Method for Circular RC Bridge Columns" by Jason C. Goodnight, Mervyn J. Kowalsky, and James M. Nau
Goodnight, J. C., Kowalsky, M. J., & Nau, J. M. (2017, September). JOURNAL OF STRUCTURAL ENGINEERING, Vol. 143.
2013 journal article
Effect of Load History on Performance Limit States of Circular Bridge Columns
JOURNAL OF BRIDGE ENGINEERING, 18(12), 1383–1396.