Vol. 25 No. 2 (2025)

Volume 25, Issue 2 (2025) of the Electronic Journal of Structural Engineering presents five cutting-edge research papers exploring advanced topics in structural analysis, material science, and computational modeling. This issue delves into optimizing structural connections, predicting concrete properties, and understanding the impact of soil heterogeneity and structural design on seismic performance. Highlights include a study on optimizing structural connections through finite element analysis of extended end plates and bolt dynamics, and the predictive modeling of compressive strength and slump in high-performance concrete using machine learning techniques. Further research investigates the split tensile strength of fiber-reinforced recycled aggregate concrete through simulation employing tuned Random Forests Trees, and the effects of soil heterogeneity on the nonlinear response of highway bridges with conditionally simulated spatial variable movements. The issue concludes with an examination of the hysteretic behavior of fully connected and beam-connected flat-corrugated steel shear walls, considering different corrugation angles and orientations. Collectively, these papers contribute to the advancement of structural engineering through rigorous analysis and innovative methodologies.