Affiliation: | 1Associate Professor, Dept. of Civil Engineering, Federal University of Rio Grande do Sul, Av. Osvaldo Aranha, 99-3 andar, Porto Alegre, RS, 90035-190, Brazil. E-mail: consoli@ufrgs.br 2Associate Professor, Dept. of Civil Engineering, Federal University of Rio Grande do Sul, Av. Osvaldo Aranha, 99-3 andar, Porto Alegre, RS, 90035-190, Brazil. 3Research Assistant, Dept. of Civil Engineering, Federal University of Rio Grande do Sul, Av. Osvaldo Aranha, 99-3 andar, Porto Alegre, RS, 90035-190, Brazil.
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