Vol. 25 No. 4 (2025)

Volume 26, Issue 4 of the Electronic Journal of Structural Engineering presents a focused collection of studies advancing structural materials, durability assessment, and computational optimization. Featured contributions include regression-based evaluation of ultimate concrete strain confined with aramid fiber–reinforced polymers, and optimal regression frameworks for assessing the mechanical properties of fiber-reinforced rubberized recycled aggregate concrete. The issue also examines the strain-hardening performance of engineered cementitious and geopolymer composites under sulfuric acid erosion, addressing durability in aggressive environments, alongside an optimization framework for large-span spatial structures that integrates Kalman filtering with an improved genetic algorithm.

Collectively, these papers underscore the growing role of data-driven modeling, advanced composites, and intelligent optimization techniques in enhancing the performance, sustainability, and resilience of modern structural systems.