1. Civil Engineer, Master in Structural Engineering, Doctor in Engineering, Associate Professor at National Univ. of Tucumán, Juan B. Terán 375, 4107 Yerba Buena, Tucumán, Argentina (corresponding author).
2. Civil Engineer, Master in Structural Engineering, Assistant Professor at National Univ. of Cuyo, Centro Universitario, Mendoza, Argentina.
3. Civil Engineer, Master in Engineering, PhD, Professor at National Univ. of Tucumán, Av. Roca 1800, 4000 S.M. de Tucumán, Argentina.