Post Tensioning stress bars are an integral part of modern post tensioning solutions in bridge construction,structural engineering and the upgrading of strutures.
To improve and ensure a functioning infrastructure that meets the needs of a growing economy and population,existing structures will have to be upgraded in the years to come.Post tensioning stress bar system will be more suitable method for upgrade the existing structures.
Stress bar system used in various purpose,
Automatically controlled hydraulic jacks together with strands allow for lifting, lowering, sliding, jacking of heavy loads e.g. bridges, roofs , boilers, tunnel boring machines or structures.
Balance cantilever construction implies construction of cantilever segments from a pier in a balance fashion on each side until the mid span is reached and a closure known as stitch segment is made with other half span cantilever construction from the preceding pier.
Post-tensioning can be used for repairs, modification and strengthening of reinforced concrete and post-tensioned structures
Repairs to post-tensioning tendons are necessary when existing tendons are damaged, corroded, cut, broken, or have lost their force