Precast Segmental Balanced Cantilever Bridges


  • The box girders are match-cast in cast-yard. After curing completely, the girders are moved to the site for erection, which are assembled as an integrated bridge via epoxy glued joints and longitudinal prestressing.


  • Freyssinet firstly used this method for the Luzancy bridge in 1945. The Taipei North-Gate viaduct was first built in 1975.


  1. Span Length¡G35 to180m.  45m is more competitive in saving cost.
  2. Project Length ¡GMin.500m, 1600m in length is economical.
  3. Alignment¡Gstraight line or circle with larger radius.