1. Professor, Dept. of Civil and Structural Engineering, Bridge Division, Civil Engineering Institute, Wroclaw Technical Univ., Wybrzeze Wyspianskiego No. 27, 50-370 Wroclaw, Poland; formerly, Visiting Professor, Dept. of Civil and Environmental Engineering, Washington State Univ., Pullman, WA 99164; Civil & Environmental Engineering Dept., Florida International Univ., Miami, FL 33199 (corresponding author).
2. MSc, PhD Student, at the Cracow Technical Univ., formerly, Associate to the Division of Bridge Structures, Civil Engineering Dept., Opole Technical Univ., Ozimska Street No. 75A, 45-368 Opole, Poland.