Prefabricated Column Foundation Detail with 30x30x70cm Concrete Base

Prefabricated column foundation CAD drawing showing construction and prefabrication detail with a 30x30 cm pedestal concrete base and pretensioned column placement. The drawing illustrates plan and sectional views of the structural foundation including a 30x30x70 cm minimum cavity filled with concrete having strength of fc 210 kg per cm2. Reinforcement details include armadura 4 number 3 bars with rings number 3 at 5 cm spacing, ensuring structural stability of the prefabricated column. The layout clearly represents pedestal concrete support, pretensioned column alignment, and concrete slab connection used in structural building foundations. Dimension references such as 0.30 m pedestal width and embedded column depth of 60 cm are presented to guide accurate construction and structural installation.