individuazione di accelerogrammi di progetto mediante ... - ReLUIS

Methodology for EPI group creation
Classical
methodology
so far
Hazard Analysis
Input Identification
YES
EPI group
TEST
P0 IM IM = IM *
"treated
tentative
EPI group"
NO
Treatment: no limits on
"tentative
EPI group"
SEISMOLOGISTS
Extraction: some loose
bounds on MS, R, ...
STRUCTURAL ENGINEERS
• the Peak Ground Acceleration (PGA),
• the Peak Ground Velocity (PGV),
• the Peak Ground Displacement (PGD),
• the x=5% damped Spectral Acceleration (usually referred to as or simply ) as evaluated at a given
period , typically the structure’s first-mode period;
• combinations of the afore-mentioned parameters, to create a vector-valued IM.00
Database