1. Dept. of Civil Engineering, Zhejiang Univ., Hangzhou 310058, China; Joint Ph.D. Candidate, Laboratoire Navier/CERMES, Ecole des Ponts ParisTech, 6-8 Ave. Blaise Pascal, Cité Descartes, Champs-sur-Marne 77455, France.
2. Professor, Laboratoire Navier/CERMES, Ecole des Ponts ParisTech, 6-8 Ave. Blaise Pascal, Cité Descartes, Champs-sur-Marne 77455, France (corresponding author).
3. Laboratoire Navier/CERMES, Ecole des Ponts ParisTech, 6-8 Ave. Blaise Pascal, Cité Descartes, Champs-sur-Marne 77455, France.
4. Société Nationale des Chemins de Fer, 6 Ave. François Mitterrand, La Plaine St Denis 93574, France.
5. Research Engineer, Laboratoire Navier/CERMES, Ecole des Ponts ParisTech, 6-8 Ave. Blaise Pascal, Cité Descartes, Champs-sur-Marne 77455, France.
6. Professor, Dept. of Civil Engineering, Zhejiang Univ., Hangzhou 310058, China.