1. Assistant Professor, Faculty of Civil Engineering, Architecture and Urbanism, Univ. of Campinas, Av. Albert Einstein, 951, CEP 13083-852, Campinas, SP, Brazil.
2. Assistant Professor, Faculty of Civil Engineering, Architecture and Urbanism, Univ. of Campinas, Av. Albert Einstein, 951, CEP 13083-852, Campinas, SP, Brazil (corresponding author).
3. Associate Professor, Faculty of Technology, Univ. of Campinas, r. Paschoal Marmo, 1888, CEP 13484-332, Limeira, SP, Brazil.