Application of Span-By-Span using advance shoring for Synthetic Box-Girder-Bridge

Tanbian Bridge, a 24.6m wide by 437m long continuous viaduct, is situated between station 18+059 and 18+956 of the Taipei-Ilan Expressway. The eleven-span viaduct has a span distribution of 3 @ 40, 39, 5 @ 43, 40, and 23m. The superstructure implements a synthetic section of combined precast struts and cast-in-situ box girder, while the substructure implements spread footingdesign except for a few well-foundation piers located at the steep slops of the valley. Advance shoring method combined with precast struts is used for the construction of the bridge.(AU)