1. Civil Engineer, Researcher, Univ. of São Paulo, Av. Travalhador São-Carlense, 400-Centro, São Carlos-SP 13566-583, Brazil (corresponding author).
2. Civil Engineer, Professor, Univ. of São Paulo, Av. Travalhador São-Carlense, 400-Centro, São Carlos-SP 13566-583, Brazil.
3. Civil Engineer, Professor, Construction Engineering Department, Univ. Politècnica de Catalunya, B1, 110A, C. Jordi Girona, 1-3, Barcelona 08034, Spain.
4. Civil Engineer, Assistant Professor, Polytechnic Univ. of Cartagena, Paseo Alfonso XIII, 52, Cartagena 30203, Spain.