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Answer: Creep coefficients are equivalent to the ACI 9.5.2.5 time-dependent factors for sustained loading, in which a creep coefficient of 2.0 corresponds to 5 years or more, 1.4 corresponds to 12 months, etc.
The method implemented within Software within CSI Software is based on Ghali, A., Favre, R., Elbadry, M. (2002). (3rd ed.). London, England: Spon Press., which is similar to that of ACI 435R Appendix B, in which creep factors are analogous to those of ACI 318.
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