Civil Engineering Reference
In-Depth Information
Figure B.43
Punching of piles through the roadbed of the State Route 1, Watsonville area, span during the 1989
Loma Prieta (California) earthquake (
courtesy of
National Information Service for Earthquake Engineering, Uni-
versity of California, Berkeley) Reproduced from: Left: Image: Loma Prieta Collection: LP0469 Right: Image: Loma
Prieta Collection: LP0470 URL: http://nisee.berkeley.edu/elibrary/
Figure B.44
Pounding damage: between adjacent spans at the Interstate-5 at Santa Clara River in Los Angeles
County during the 1994 Northridge (California) earthquake (
left
) and at the abutment of a bridge near Nishinomiya
Port in the 1995 Kobe (Japan) earthquake (
right
) (
courtesy of
National Information Service for Earthquake Engineer-
ing, University of California, Berkeley) Reproduced from: Left: Image: Northridge Collection: NR968 Right: Image:
Unknown URL: http://nisee.berkeley.edu/elibrary/
Several examples of punching of piles through the roadbed were observed in RC bridges, especially
in the 1989 Loma Prieta earthquake. Bridge spans collapse because of punching of supporting piers as
shown in Figure B.43 .
Finally, during strong earthquakes, severe pounding damage may also take place at joints between
adjacent spans as shown in Figure B.44. This type of damage can be localized both between adjacent
bridge spans and at abutments.
