Yield response prediction of unsymmetrically reinforced concrete rectangular beams

Özet

Main components such as columns and beams of reinforced concrete (RC)buildings are constructed as symmetrically and unsymmetrically reinforced.Symmetrically reinforced concrete members are widely studied and someanalytical/numerical approaches are provided. However, unsymmetricallyreinforced concrete members are not adequately investigated and furtherresearch is required to predict response of these members. For this reason, thisstudy focuses on strength and deformation capacity prediction ofunsymmetrically RC members at yield which primarily required for the designand assessment. In the study, wide range of RC sections are generated andanalyzed using different section dimensions, material types, reinforcementratios and configurations to reveal behavior of these members. Influence ofparameters on the responses is investigated and they are contributed toprediction equations by statistical evaluations. Prediction equations are firsttested with analytical RC section results and comparisons have shown verygood agreement. Equations are then applied to predict dynamic features of twoexperimental MDOF buildings. Evaluations have revealed the reliability ofprediction equations in approximation of responses in building scale.