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Advanced Design of Concrete Structures
This lecture covers the advanced design of concrete structures, focusing on the improvement of precast sections, post-tensioned precast elements, segmental bridges, and changes in cross-sections. The presentation discusses the structural features, materials used, advantages, disadvantages, and possible improvements of a specific project involving railway bridges. It explores the use of precast pretensioned U-beams, deviators, and in-situ slab elements. The lecture emphasizes the importance of providing continuity between adjacent spans for better slenderness, durability, and efficiency in construction processes.