1. a Department of Civil Engineering, University of Castilla-La Mancha, Avda. Camilo José Cela s/n, 13071, Ciudad Real, Spain
2. b Department of Civil and Architectural Engineering and Mechanics, The University of Arizona, Tucson, AZ 85704, USA
3. c Graz University of Technology, Stremayrgasse 10/I, 8010 Graz, Austria