PSI - Issue 64

1738 Raul Berto et al. / Procedia Structural Integrity 64 (2024) 1733–1742 6 Raul Berto, Chiara Bedon, Andrea Mio, Alessandro Mazelli, Paolo Rosato / Structural Integrity Procedia 00 (2019) 000 – 000

Table 5 . Static and seismic performance variations Δ . STATIC

SEISMIC

Δ SLS [%]

Δ ULS [%]

Δ DL [%]

Δ LS [%]

0y

15y +23 +76

50y +21 +72 +95

0y

15y +57 +52

50y +53 +59

OSB CLT LWC

+25

+21 +16

+83

+122 +161 +272

+103 +165

+124 +128

+101

+196

+174

+164

Table 6. Analysis matrices. =0 =15 CLT LWC OSB CLT

=50 CLT 0.00

OSB

LWC

OSB 0.00

LWC

Implementation cost [€] Decommissioning cost [€]

14,791.92 31,067.80 14,848.27

0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00

0.00

0.00

0.00

0.00

5,036.16

6,043.39 11,289.60

GWP [kg CO 2 eq] Water use [m 3 ]

4,297.99 1,830.00

5,056.83 2,120.00

6,312.66 2,250.00

578.05

254.17

479.35 182.24

0.00

65.71

Reversibility Invasiveness

10

10

4 1

10

10

4 1

10

10

4 1

6

8

6

8

6

8

Δ SLS Δ ULS

25% 21% 83%

103%

165% 196% 128% 272%

23% 57% 83%

76% 52%

101% 174% 128% 272%

21% 53% 83%

72% 59%

95%

16%

164% 128%

Δ DL Δ LS

124% 161%

124% 161%

124% 161%

122% 272% Calculation of discounted analysis matrices : The adopted discounting procedure distinguishes between parameters with a market reference (implementation and decommissioning costs) and those with social implications (structural aspects related to safety, environmental, and architectural aspects), see Table 7 and (Defrancesco et al., 2014; HM Treasury, 2022; Nesticò and Maselli, 2020). Architectural parameters which are not subject to uncertainty and are non-monetary in nature are not discounted to present value. A discontinuous compound financial regime is also used, where the present value 0 of a future value occurring at time depends on the discount rate : 0 = (1+ ) (8) The obtained values are thus discounted to present value (Rout and Walshe, 2013), see Table 8. Table 7. The discount rates. =15 =50 122% 122%

Market discount rate 7% 7% Social discount rate 3.5% 3% Table 8. Discounted analysis matrices. =0 =15 LWC OSB CLT

=50

OSB

CLT

LWC

OSB 0.00

CLT 0.00

LWC

Implementation cost [€]

14,791.92

31,067.80

14,848.27

0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00

0.00

Decommissioning cost [€] 0.00

0.00

0.00

170.97 131.86

205.16

383.26 109.34

GWP [kg CO 2 eq] Water use [m 3 ]

4,297.99 1,830.00

5,056.83 2,120.00

6,312.66 2,250.00

57.98 14.99

0.00

41.57

Reversibility Invasiveness

10

10

4 1

10

10

4 1

10

10

4 1

6

8

6

8

6

8

Δ SLS Δ ULS

25% 21% 83%

103%

165% 196% 128% 272%

14% 34% 49% 73%

45% 31% 74% 96%

60%

5%

16% 14% 28% 37%

22% 37% 29% 62%

16%

104%

12% 19% 28%

Δ DL Δ LS

124% 161%

76%

122%

162%