Utófeszítésnél

Utófeszítésnél refers to the process of applying tension to tendons or cables after a concrete structure has already hardened. This technique is commonly used in pre-stressed concrete construction. In post-tensioning, ducts are typically placed within the concrete formwork before pouring. Once the concrete has reached a sufficient strength, steel tendons or cables are threaded through these ducts. Hydraulic jacks are then used to pull on the ends of the tendons, stretching them to a predetermined tension. The tendons are then anchored at the ends of the structure, and the jacks are removed. The tension in the tendons creates compressive forces within the concrete, which counteract the tensile stresses that will occur when the structure is in service. This allows for longer spans, thinner sections, and more efficient use of materials compared to conventional reinforced concrete. Utófeszítésnél is a vital method for constructing bridges, parking garages, and other large-scale structures requiring enhanced load-bearing capacity and durability. The precise control over the applied tension is crucial for achieving the desired structural performance and safety.