[1] Manchester Metropolitan Univ, Dept Engn, Manchester, Lancs, England
[2] Eindhoven Univ Technol, Dept Built Environm, Eindhoven, Netherlands
[3] Katholieke Univ Leuven, Dept Civil Engn, Leuven, Belgium
[4] Univ Nottingham, Fac Engn, Nottigham, England
[5] Griffith Univ, Sch Engn & Built Environm, Brisbane, Qld, Australia