5Tikka T K,Mirza S A.Nonlinear EI equation for slenderreinforced concrete columns[J].ACI StructuralJournal,2005,102(6):839-848.
6Yalcin C,Saatcioglu M.Inelastic analysis of reinforcedconcrete columns[J].Computers&Structures,2000,77(5):539-555.
7Pfrong E O,Siess C P,Sozen M A.Load-moment-curvature characteristics of reinforced concrete crosssections[J].Proceeding of ACI Structural Journal,1964,61(7):763-778.
8Broms B,Viest I M.Ultimate strength analysis of longhinged reinforced concrete columns[J].Proceeding ofASCE,1958,84(ST3):1635.1-1635.30.
9James G M,John E B,Edward O P.Design of slenderconcrete columns[J].ACI Structural Journal,1970,67(1):6-28.
10Timo K,Mirza S A.Equivalent uniform momentdiagram factor for composite columns in minor axisbending[J].ACI Structural Journal,2005,102(1):120-130.
