Approximate moment-curvature relationships for slender columns

Anibal A. Manzelli, Issam E. Harik

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


This paper presents the derivation of an approximate second-order method for the analysis and design of slender cantilever compression members. The method is based on the generation of equivalent linear representations for the nonlinear moment-curvature (M-Ф) relationships for the column cross section. The linear M-Ф equations are derive d in such a way that they closely predict the nominal strength of the slender column for a prescribed axial load. The derivation is based on the guidelines of the German Code and Heft 220-which, unlike the moment magnifier method, takes into account the influence of the axial load on the stiffness of the column. The results of the proposed method are in excellent agreement with experimental data and predictions from sophisticated computer programs.

Original languageEnglish
Pages (from-to)1114-1132
Number of pages19
JournalJournal of Structural Engineering (United States)
Issue number4
StatePublished - Apr 1993

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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