1. Structural Engineering, Semnan University, Semnan, Iran
2. Department of Civil Engineering, ISISE, Minho University, Campus de Azurem, Guimaraes, Portugal
3. Department of Civil Engineering, School of Engineering, Lorestan University, Khorramabad, Iran
4. C-TAC Research Centre, Department of Civil Engineering, University of Minho, Guimaraes, Portugal