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Table 1 Details of the fault-crossing bridges in the 1999 Chi-Chi earthquake

From: Across-fault ground motions and their effects on some bridges in the 1999 Chi-Chi earthquake

Site

Bridge

GPS location

Span arrangement

Damage description

1

Shi-Wei Bridge

120.797°E, 24.285°N

3 × 25 m

Unseating of two spans, shear failure of piers, tilting of abutments

2

Bei-Feng Bridge

120.760°E, 24.280°N

13 × 30 m

Unseating of three spans, pier collapse

3

E-Jian Bridge

120.734°E, 24.133°N

24 × 12 m

Unseating of 12 spans, pier collapse

4

Wu-Shi Bridge

120.670°E, 24.008°N

18 × 34.8 m

Unseating of two spans, shear failure of piers

5

Bauweishan Viaduct

(under construction)

120.706°E, 23.902°N

–

Shear failure of foundations, pounding damage of abutments, tilting of piers

6

Ming-Tsu Bridge

120.707°E, 23.816°N

28 × 25 m

Unseating of nine spans, shear failure of piers, tilting of piers

7

Tong-Tou Bridge

120.658°E, 23.651°N

4 × 40 m

Complete collapse