Flexural-torsional behaviour of steel reinforced concrete members subjected to repeated loading

This paper presents an experimental investigation of the inelastic behaviou r of steel reinforced concrete (SRC) members under cyclically applied bendi ng and torsional loading. Fourteen steel reinforced concrete members made f rom three structural-steel sections with different cross-sectional properti es were tested under various combinations of bending and torsion. Results i ndicate that the ultimate flexural capacity of an SRC member was significan tly reduced under a moderate degree of torsion. Based on these findings, a quantitative evaluation of the effect of torsion was made and a simplified interaction curve between bending and torsion is proposed. Copyright (C) 20 00 John Wiley & Sons, Ltd.