%0 Journal Article
%A LIU  Yao-lai
%A WANG  Bao-sheng
%A ZHOU  Hong-bo
%A ZHAO  Er-feng
%A LI  Zhang-yin
%T Non-probabilistic Reliability Analysis of Gravity Dam Based on Convex Set Scale Factor and the WOA-Kriging Model
%D 2025
%R 10.11988/ckyyb.20231174
%J Journal of Changjiang River Scientific Research Institute
%P 164-170
%V 42
%N 3
%X <p id="p00010">To achieve reliable analysis of gravity dams with limited statistical data, a non-probabilistic reliability assessment method was developed. This method requires only the upper and lower bounds of uncertain parameters. The correlated relationship of these parameters was described using an inscribed ellipsoid model. By introducing a scaling factor, the non-probabilistic reliability calculation model was transformed into a constrained optimization problem. The Kriging model, known for its effectiveness in fitting highly nonlinear functions, was employed to model the functional behavior of gravity dam elements. Additionally, the Whale Optimization Algorithm (WOA) was used for reliability optimization. Case validation confirmed that the non-probabilistic reliability calculation method, based on the convex set scaling factor and the WOA-Kriging model, effectively analyzes the reliability of gravity dams.</p>
%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20231174