Giuseppe Sappa (1), Gerardo Grelle (2), Flavia Ferranti (1) & Francesco Maria De Filippi (1)
(1) Department of Civil, Building and Environmental Engineering, DICEA, Sapienza University of Rome, Via Eudossiana, 18, 00186, Rome, Italy.
(2) Department of Sciences and Technologies, Università degli Studi del Sannio, Benevento, Italy.
Corresponding author e-mail: giuseppe.sappa@uniroma1.it