1. Ph.D. Student, IST—Universidade de Lisboa, Avenue Rovisco Pais, 1049-001 Lisbon, Portugal.
2. ESTBarreiro, Polytechnic Institute of Setúbal, R. Américo da Silva Marinho, 2839-001 Lisbon, Portugal.
3. Full Professor, Dept. of Civil Engineering, Architecture and Georresources, IST—Universidade de Lisboa, Avenue Rovisco Pais, 1049-001 Lisbon, Portugal (corresponding author).