1. Usage

Bridges (Ordinary bridges: girder, steel pier / Long-span bridge: girder, pylon)

Ships (Deck plate, side shell)

Steel Frame Construction (Box column, long span girder)

2. Applications in Other Countries

France, Germany : Built 86 bridges (as of 1992)

Country Bridge Name Type Total Length (m) Volume of Steels Used (Ton) Germany Sauertal Bridge Box Girder (street bridge) 1,195 13,000 Rheinbrueke Suspension (street bridge) 1,030 8,500 Peter-Neis-Bruecke Box Girder (street bridge) 95 600 Hamburg Bridge 32 60 France Somme Viaduct Long Girder (railway bridge) 760 1,872 Haute Colme Viaduct Long Girder (railway bridge) 1,827 5,200

Japan

Sinetsu : Fukazawa Kawa Bridge, I-Girder
Tokorozawa Kawa Bridge, Box Girder
Nakounishi Grand Bridge : Pier

Korea :  Jindo Bridge No. 2

3. Cases by Design

France (TGV)

(Cable Stayed Bridge Pylon, SM520C / 400 tons)

Cross Section

Tapered Plate Application : 40 meters of effective span in a continuous bridge 

Applied Area Conventional plate Tapered plate Lower Flange Put a plate 8m long and 90mm thick between plates 4m long and 75mm thick  Used only a single two-way tapered plate 16m long, 60~90~60mm thick Evaluation : Self-load was reduced by 8-10% and the number of welds was also decreased by 4 Using Conventional Plates Using Tapered Plates

The Results of Tapered Plate Application

Total amount of steels used : 5,200 tons
Total amount of taper plates used : 1,270 tons
Reduced self-load : 108 tons

This accounts for 8.2% of the total weight of taper plates used and 2.1% of the entire structure weight.  
Reduced welded joints : 160 welds (leading to 6% reduction in weld costs)
Improved fatigue limits and bridge durability