1. Dept. of Civil Engineering, Technical Univ. of Denmark, DK-2800 Kgs. Lyngby, Denmark. E-mail: rw@byg.dtu.dk
2. Associate professor, Dept. of Civil Engineering, Technical Univ. of Denmark, DK-2800 Lyngby, Denmark. E-mail: jfo@byg.dtu.dk
3. Professor, Head of Section, Dept. of Civil Engineering, Technical Univ. of Denmark, DK-2800 Lyngby, Denmark. E-mail: hs@byg.dtu.dk
4. Senior Project Manager, COWI A/S, Parallelvej 2, DK-2800 Kgs. Lyngby, Denmark. E-mail: tve@cowi.dk