PSI - Issue 73

Juraj Králik et al. / Procedia Structural Integrity 73 (2025) 73–80 Juraj Králik/ Structural Integrity Procedia 00 (2025) 000–000

77 5

Fig. 5. The roof zones with wind load in the -X direction determined by Eurocode requirements.

Fig. 6. The view of NPP objects from the -Y and +Y sides.

Table 1. Comparison of the external pressure coefficients for flat roofs in accordance with Eurocode and experiment.

Zone

Roof type

F

G

H

I

c pe,10 -1.90 -1.83

c pe,1

c pe,10 -1.30 -1.68

c pe,1

c pe,10 -0.70 -0.80

c pe,1

c pe,10

c pe,1

+0.2 -0.2 -0.73

Sharp gutters - Eurocode Sharp gutters - Experiment

-2.50

-2.00

-1.20

-

-

-

Table 2. External pressure coefficients for flat roofs in accordance with numerical analysis. Location / zone 490 G H H G

I

-0.73

-0.75

-0.48

-0.59

-0.42

c pe,10

805

805 Skylight

Location / zone

F

G

H

H

F

-0.32

-0.03

-0.32

-0.01

0.02

c pe,10

805 Skylight

800

Vent. centre

Location / zone

G

F

G

H

H

0.07

-0.87

-0.88

-0.53

-0.31

c pe,10

Vent. centre

Bubble tower

807

Location / zone

I

I

H

I

-0.29

-0.27

-0.42

-0.44

c pe,10

807 Shelter

Location / zone

H

I

-0.43

-0.45

c pe,10