Structural reliability

This research topic has been conducted under the support from ARC projects (DE140100747, DP200100112, FT200100024) with an aim to develop computational tools to evaluate the reliability of structural systems. By using subset simulation incorporated with advanced analysis with beam elements, our newly developed reliability analysis tools are not only more accurate than the commonly used First Order Reliability Methods (FORM) especially in the case of nonlinear structures, but also computationally efficient for practical applications. These tools have successfully been used for (i) reliability calibration of current design codes for CFST columns [1] and (ii) system reliability-based design of steel frames with semi-rigid connections [2] and composite frames [3]. This is an important step to move beyond the current member-based design method.

References

[1] Thai HT, Thai S, Ngo T, Uy B, Kang W-H, Hicks SJ. Reliability considerations of modern design codes for CFST columns. Journal of Constructional Steel Research 2021;177:106482.

[2] Thai HT, Uy B, Kang WH, Hicks S. System reliability evaluation of steel frames with semi-rigid connections. Journal of Constructional Steel Research 2016;121:29-39.

[3] Tran H, Thai HT, Uy B, Hicks SJ, Kang WH. System reliability-based design of steel-concrete composite frames with CFST columns and composite beams. Journal of Constructional Steel Research 2022;184:107298.