Jason Chad Goodnight Goodnight, J. C., Kowalsky, M. J., & Nau, J. M. (2017, September). Closure to "Modified Plastic-Hinge Method for Circular RC Bridge Columns" by Jason C. Goodnight, Mervyn J. Kowalsky, and James M. Nau. JOURNAL OF STRUCTURAL ENGINEERING, Vol. 143. https://doi.org/10.1061/(asce)st.1943-541x.0001867 Goodnight, J. C., Kowalsky, M. J., & Nau, J. M. (2016). Modified Plastic-Hinge Method for Circular RC Bridge Columns. Journal of Structural Engineering, 142(11), 04016103. https://doi.org/10.1061/(asce)st.1943-541x.0001570 Goodnight, J. C., Kowalsky, M. J., & Nau, J. M. (2016). Strain Limit States for Circular RC Bridge Columns. EARTHQUAKE SPECTRA, 32(3), 1627–1652. https://doi.org/10.1193/030315eqs036m Goodnight, J. C., Kowalsky, M. J., & Nau, J. M. (2013). Effect of Load History on Performance Limit States of Circular Bridge Columns. JOURNAL OF BRIDGE ENGINEERING, 18(12), 1383–1396. https://doi.org/10.1061/(asce)be.1943-5592.0000495