PSI - Issue 44

Alessandro Mei et al. / Procedia Structural Integrity 44 (2023) 2318–2325 Mei, et al./ Structural Integrity Procedia 00 (2022) 000–000

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Table 1 - Ductility values from experimental tests. Reference

Ductility Value

Notes

3.03 (IPA1) 1.90 (IPB1) 1.33 (IPC1) 1.22 (IPD1)

Down-Aisle test Down-Aisle test Down-Aisle test Down-Aisle test Down-Aisle test Down-Aisle test Down-Aisle test

Kanyilmaz, Castiglioni, et al., 2016

Castiglioni, 2016

6.98 1.98 1.57

Comparini et al., 2017; Mei et al., 2021

Avgerinou et al., 2019

a.

b.

Figure 4. (a) q -factor as a function of the period of the structure using an elastic-plastic constitutive law. (b) Force-reduction factor as a function of the period of the structure using a pinching constitutive law.

Figure 5. The ratio between the q -factor obtained by the numerical procedure and the value recommended by IBC.

Figure 6 displays the force-reduction factor and the ratio between the latter and the one suggested by IBC for ductility values from experimental tests.