1. Senior Lecturer, School of Civil and Structural Engineering, Univ. of Plymouth, Palace Court, Palace St., Plymouth PL1 2DE, U.K.
2. Research Graduate, School of Civil and Structural Engineering, Univ. of Plymouth, Palace Court, Palace St., Plymouth PL1 2DE, U.K.
3. Research Professor, School of Civil and Structural Engineering, Univ. of Plymouth, Palace Court, Palace St., Plymouth PL1 2DE, U.K.