[1] Univ Zagreb, Fac Civil Engn, Zagreb 10000, Croatia
[2] Univ JE Purkyne, Fac Sci, Usti Nad Labem 40096, Czech Republic
[3] Polytech Inst Coimbra, Appl Res Inst, P-3045093 Coimbra, Portugal
[4] Polytech Inst Coimbra, Res Ctr Nat Resources Environm & Soc CERNAS, P-3045601 Coimbra, Portugal
[5] Univ Ljubljana, Fac Civil & Geodet Engn, Ljubljana 1000, Slovenia