1. Undergraduate Research Assistant, Construction Engineering and Management Program, Dept. of Civil Engineering, Catholic Univ. of America, Washington, DC 20064; Affiliated with Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES Foundation), Ministry of Education, CEP 70.040-020 Brasília-DF, Brazil.
2. Associate Professor of Civil Engineering and Director of Construction Engineering and Management Program, Dept. of Civil Engineering, Catholic Univ. of America, Washington, DC 20064 (corresponding author).