Analytical resistance of the laterally offset rectangular hollow sections connections under concentrated force

Rectangular Hollow T‐shaped Joint With Eccentricity Made of High Strength Steels

“…This paper serves as a continuation of the studies presented in [1], aiming to extend the key findings to HSS cases. The analytical model, originally developed in [1], is briefly described and used to calculate the resistance of X-shaped RHS-to-RHS connections with brace offsets, as summarized in Section 2. Section 3 presents the results of numerical simulations for offset connections using steel grades S355, S460, and S690.…”

“…This may be due to some conservatism in the analytical model's results. This observation could be attributed to a level of conservatism in the results generated by the analytical model [1]. The maximum reduction in connection strength observed was 9.5% for the CH16_B100-10 connection.…”

“…Results from calculations using the modified yield line model 𝑃 AB [1] and numerical simulations employing the 3% criterion 𝑃 "?3 are summarized in Table 4. The analysis confirms the expected trend of reduced connection capacity with higher steel grades, mainly in specimens with thicker chord walls (𝛾 ≤ 10).…”

“…A broader range of β-ratios should be investigated. Additionally, despite the strong validation of the analytical model [1] through numerical simulations, conducting laboratory tests is essential to establish definitive reduction factors for designing the studied T-connections.…”

“…For analytical determination of the design strength, the equation developed by Kalmykova & Wald [1] was used. The equation was obtained from virtual work principle neglecting the membrane effect in the chord flange, which is summarized as follows:…”