^pof;
Civil;
and;
Mechanical;
Engineering,;
University;
of;
Cassino,;
Cassino;
(FR);
03043,;
Italy;
^pof;
Department;
of;
Structural;
Engineering;
&;
Geotechnics,;
Sapienza;
-;
University;
of;
Rome,;
Rome;
00197,;
Italy;
^pof;
Civil;
Engineering;
and;
Engineering;
Mechanics,;
Columbia;
University,;
New;
York,;
NY;
10027,;
USA;