Seismic vulnerability analysis of a complex interconnected civil infrastructure - Seismic Risk Analysis and Management of Civil Infrastructure Systems - page 492

Table 18.1 Number of buildings per Building Census Area (BCA), population per
urban audit sub city district (SCD) and land use per Land Use Plan Area (LUPA),
the latter with codes: 'I' industrial, 'C' commercial, 'R' residential, 'G' green

City BCA N URM N RC SCD N inhab LUPA Use

A 1 17 000 25 500 1 163 000 1 I

2 19 215 23 485 2 144 000 2 C

3 12 600 29 400 3 G

4 34 400 8 600 4 R

5 30 000 10 000

6 31 570 9 430

7 29 400 12 600

8 8 540 34 160

9 6 675 20 025

B 1 22 500 22 500 1 124 000 1 C

2 30 100 12 900 2 102 000 2 R

3 33 000 11 000 3 I

4 34 000 8 500 4 G

5 19 620 23 980

6 13 410 31 290

C 1 18 000 18 000 1 37 600 1 R

2 14 600 21 900 2 56 400 2 G

3 27 750 9 250 3 C

4 24 920 10 680

5 15 480 18 920

Table 18.2 Parameters of the lognormal fragility curves for the two
limit states and the two considered building typologies

URM RC

Parameter Yield Collapse Yield Collapse

μ log − 2.041 − 1.269 − 1.832 − 1.091

σ log 0.574 0.550 0.474 0.485

tions with high voltage (380 kV) lines, collectively supply 1600 MW of
power. The slack bus, also called balance node, supplies the power imbal-
ance between the generation and the demands. Smaller voltage (220 kV)
lines then convey energy to the urban areas, where they are further reduced