Prof. Fumio Tatsuoka
Tokyo University of Science, Japan
e-mail: tatsuoka [at] rs.noda.tus.ac.jp Guido Gottardi
University of Bologna
e-mail: guido.gottardi2 [at] unibo.it
Hoe I. Ling Columbia University
e-mail: Ling [at] civil.columbia.edu
Jie Han
University of Kansas
e-mail: jiehan [at] ku.edu