Structural engineering detail for foundation beams (VB37-VB47) at 0.0m elevation. The drawing specifies concrete grade C25 (fck=25MPa, Eci=28000MPa, Ecs=23800MPa) with CAA II moderate exposure class and maximum water/cement ratio of 0.60. Each beam shows precise reinforcement layouts with longitudinal bars (Ø10mm) and stirrups (Ø5mm) at specified centers. Cross-section details (labeled as “Corte A”) illustrate the placement of rebars with exact spacing and dimensions. The drawing includes a comprehensive reinforcement schedule detailing bar positions, diameters, quantities, and total lengths. Steel specifications indicate 50A grade for main reinforcement and 60A grade for stirrups, with a calculated total weight of 85kg and 22kg respectively.