Seismic vulnerability analysis of a complex interconnected civil infrastructure - Seismic Risk Analysis and Management of Civil Infrastructure Systems - page 489

Event model

Local intensity model

Amplification model

M Z L

A A 2 A 3 A 4

1

Model for
primary IM
on rock,
on grid

Model for primary
and secondary IMs at surface

S r1 S 1

S gr1

1

S r2 S 2

S gr2

2

u

secondary
IM values

S r3 S 3

S gr3

3

Interpolated
primary IM
values

S r4 S 4

S gr4

4

S geo4

Systems' model Components' fragility model

Functional
model

D 1

N L4

4

D 2

Consequence
model

D 3

Functional
model

D 4 B 4

18.10 Graphical representation of the typical simulation run: circles represent random variables, rectangles represents
'analytical/numerical models', arrows represent statistical dependence among random variables or input/output to/from a
model. The graph represent the uncertainty in the simple infrastructure of Fig. 18.9.