Creep and shrinkage analysis of composite systems under axial load and biaxial bending

C. A. Adrian, T. C. Triantafillou

Research output: Contribution to journalArticle

Abstract

The instantaneous and creep and shrinkage behaviour of composite steel-concrete sections subjected to axial load and biaxial bending is examined analytically using the age-adjusted effective modulus method and a stress relaxation procedure. Any cross-section that can be discretized in rectangular elements can be analysed using the approach described in this study. Material non-linearities (concrete cracking and crushing as well as steel yielding) are included in the formulation by empolying an interative numerical procedure. The analytical method was implemented in a computer program and case studies demonstrate that composite columns under complex loads experience a considerable redistribution of stresses and strains, causing the degree of cracking and the secondary load effects (P-delta) to increase.

Original languageEnglish (US)
Pages (from-to)543-551
Number of pages9
JournalMaterials and Structures
Volume25
Issue number9
DOIs
StatePublished - Nov 1992

ASJC Scopus subject areas

  • Engineering(all)

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