Seismic retrofit for RC columns by NiTi and NiTiNb SMA wires E. Choi, K. T. Yang, G. H. Tae, T. H. Nam and Y. S. ChungEuropean Symposium on Martensitic Transformations, (2009) 07005DOI: https://doi.org/10.1051/esomat/200907005