How Post-Tensioning Concrete Works: Engineering Explained

追加: 2026-05-18

Post-tensioning is a structural engineering technique where steel tendons are tensioned after concrete has cured, using hydraulic jacks to compress the concrete slab and enhance its load-bearing capacity. This method involves placing steel tendons within the concrete, allowing the concrete to cure and gain strength, then using hydraulic jacks to apply tension to the tendons, which compresses the concrete and creates internal prestressing forces that help the structure resist bending and cracking under heavy loads.