1. Professor, Dept. of Civil Construction, Universidade Federal do Paraná—UFPR, Centro Politécnico, s/n, TC/DCC, Jardim das Américas, Curitiba/PR, 81531-990, Brazil (corresponding author).
2. Graduate in Civil Engineering, Dept. of Civil Engineering, Universidade Federal de Pernambuco—UFPE, Recife, Brazil.
3. Professor, Dept. of Civil Construction, Universidade Federal do Paraná—UFPR, Curitiba, Brazil.
4. M.Sc. Civil Engineering candidate, Dept. of Civil Construction, Universidade Federal do Paraná—UFPR, Curitiba, Brazil.