PSI - Issue 38

Antti Ahola et al. / Procedia Structural Integrity 38 (2022) 457–465 Ahola et al. / Structural Integrity Procedia 00 (2021) 000 – 000

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Abbreviations CA constant amplitude DSFW double-sided fillet weld EC3 Eurocode 3 ENS effective notch stress FE finite element IIW orthotropic steel deck SSFW single-sided fillet weld SCF stress concentration factor NLC OSD non-load-carrying

International Institute of Welding

2. Transverse non-load-carrying fillet weld joints The basis of experimental data for the NLC transverse attachment joints with the continuous SSFW and DSFW joints is extracted from the earlier experimental studies (Ahola et al., 2021, 2019) These experimental findings are supplemented with new experimental tests to conduct comparison between the SSFW and DSFW joints and continuous and intermittent welds. The new tests are carried out for the S355 steel grade with the thickness of t = 6 mm. Two different joint configurations are used: intermittent SSFW joints with the weld length of l w = 30 mm in accordance with the minimum allowable load-carrying weld length in Eurocode 3 (EN 1993-1-8, 2005), and continuous DSFW joints (Fig. 2a). The fatigue tests have been carried out using constant amplitude (CA) loading with the applied stress ratio of R = 0.1 with a servo-hydraulic fatigue testing machines presented in Fig. 2c – d.

Intermittent SSFW

DSFW

SSFW

(a)

(Ahola, 2021)

(this study)

(this study)

SSFW

DSFW

(b)

(Ahola, 2019)

(c)

(d)

(Ahola, 2021)

Fig. 2. Shape and dimensions of the fatigue test specimens tested in this study and previous studies: (a) S355 steel grade, and (b) S1100 steel grade, and fatigue test set-ups for (c) DSFW joints and (d) Intermittent SSFW joints.