• A general-purpose PSC girder method that enables optimal shape and economical long span by introducing tension step by step considering the working load and stress of each construction step (making, slab, and under use).
  Tendon's lateral symmetrical arrangement improves workability and minimizes lateral displacement during tension
  A new technology that fundamentally solves the 'transverse curvature phenomenon', which is a difficult construction problem of existing PSC girder, is applied.
  Construction order

Field manufacturing	Primary Tension and Grouting	Installation of Hypothesis and Upper Slab	Secondary tension