Incorporating residual strains in the flexural rigidity of RC members with varying degrees of prestress and cracking

@inproceedings{Knight2013IncorporatingRS,
  title={Incorporating residual strains in the flexural rigidity of RC members with varying degrees of prestress and cracking},
  author={Doyle Knight and Phillip Visintin and Deric John Oehlers and Mohd Zamin Jumaat},
  year={2013}
}
The deformation of reinforced concrete columns and beams is controlled by the variation of the flexural rigidity (EI) both along the member and with applied loads and time. Currently, the moment-curvature (M/χ) approach is used to quantify EI. Prior to cracking, the M/χ approach provides a pure mechanics based solution for EI; that is, the only components of the model that have to be determined empirically are the material stress-strain relationships. However after cracking, the M/χ approach… CONTINUE READING