1. Postdoctoral Fellow, Dept. of Structural Engineering, São Carlos School of Engineering Univ. of São Paulo, Avenida do Trabalhador São Carlense 400, 13560-590 São Carlos, SP, Brazil.
2. Professor, Dept. of Structural Engineering, São Carlos School of Engineering Univ. of São Paulo, Avenida do Trabalhador São Carlense 400, 13560-590 São Carlos, SP, Brazil.
3. Professor, LMT-Cachan, ENS de Cachan/CNRS-UMR 8535/Université Paris 6h, 61 avenue du Président Wilson, F-94235 Cachan Cedex, France.
4. Research Professor, LMT-Cachan, ENS de Cachan/CNRS-UMR 8535/Université Paris 6h, 61 avenue du Président Wilson, F-94235 Cachan Cedex, France (corresponding author).