1. Ph.D. Student, Faculty of Civil Engineering, Univ. of Belgrade, Bulevar kralja Aleksandra 73, Belgrade 11000, Serbia (corresponding author).
2. Associate Professor, Faculty of Civil Engineering, Univ. of Belgrade, Bulevar kralja Aleksandra 73, Belgrade 11000, Serbia.
3. Professor, College of Engineering, Mathematics and Physical Sciences, Univ. of Exeter, Harrison Bldg., North Park Rd., Exeter EX4 4QF, U.K.
4. Ph.D. Student, Faculty of Civil Engineering, Univ. of Belgrade, Bulevar kralja Aleksandra 73, Belgrade 11000, Serbia.
5. Professor, Faculty of Civil Engineering, Univ. of Belgrade, Bulevar kralja Aleksandra 73, Belgrade 11000, Serbia.