Daños en puente, chile 2010
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Publicado: 24 de enero de 2011
Damage of Transportation Facility due to 2010 Chile Earthquake
April 5, 2010 Kawashima, K., Unjoh, S., Hoshikuma, J. and Kosa, K. Bridge Team Dispatched by Japan Society of Civil Engineers
AP 45 bridges located at 30 sites were investigated
Suburbs of Cenception
27. 28. 29. 30. 19. 20. 21. 22. 23. App. bridge Las Ballenas Lirquen Itata
Santiago
1. Mira Flores 2. Lo Echeveres 3.Americo ves Pusio 4. San Martin 5. Emanuel Antonio
Route 5
Conception
Jan Pablo II Llacolen Bio Bio La Mochita Laraquete
Arauko
24. Raqui I 25. Raqui II 26. Tubul
6. Maipo 7.Hospital 8. Pedestrian bridge 9. Augostura 10. Graneros 11. Les Mercedez 12. Rio Claro 13!Rio Maule 14. Longavi 15. Copihue 16. Parval 17. Perqui Lauquen 18. ? (Gerbar hinge)
Types of Damage
!Damageresulted from insufficient integrity of pre-cast concrete girder bridges due to absence of diaphragms !Lack of constraint to rotation of deck in skewed bridges !Damage of piers and foundations in bridgesbuilt in the early days !….
Why was damage extensive in bridges built in recent years?
Pre Mid-1990s Typical Chile Bridges
Pre-tension PC girders Diaphragm Cap beam
After the Mid 1990sinfluenced by Spanish practice
What happened in the bridges with insufficient integrity due to absence of diaphragm?
Seismic force in the TR direction
Contact of a PC girder to stopper results infailure of lower flange, shear failure of web plate, rupture of deck slabs and connection between deck slab and upper flange
Example of damage due to lack of diaphragms
Llacolen BridgeConception
From Web
What happened if side stoppers on the top of pier cap were removed in addition to removal of diaphragms?
Vertical restrainers? !Resist Uplift? !Insufficient to constrain offset of abridge in the transverse direction
Example of damage due to lack of side stoppers and diaphragms
Las Mercedes Bridge Route 5
Bridges based on Pre Midrecent practice 1990s suffered more...
April 5, 2010 Kawashima, K., Unjoh, S., Hoshikuma, J. and Kosa, K. Bridge Team Dispatched by Japan Society of Civil Engineers
AP 45 bridges located at 30 sites were investigated
Suburbs of Cenception
27. 28. 29. 30. 19. 20. 21. 22. 23. App. bridge Las Ballenas Lirquen Itata
Santiago
1. Mira Flores 2. Lo Echeveres 3.Americo ves Pusio 4. San Martin 5. Emanuel Antonio
Route 5
Conception
Jan Pablo II Llacolen Bio Bio La Mochita Laraquete
Arauko
24. Raqui I 25. Raqui II 26. Tubul
6. Maipo 7.Hospital 8. Pedestrian bridge 9. Augostura 10. Graneros 11. Les Mercedez 12. Rio Claro 13!Rio Maule 14. Longavi 15. Copihue 16. Parval 17. Perqui Lauquen 18. ? (Gerbar hinge)
Types of Damage
!Damageresulted from insufficient integrity of pre-cast concrete girder bridges due to absence of diaphragms !Lack of constraint to rotation of deck in skewed bridges !Damage of piers and foundations in bridgesbuilt in the early days !….
Why was damage extensive in bridges built in recent years?
Pre Mid-1990s Typical Chile Bridges
Pre-tension PC girders Diaphragm Cap beam
After the Mid 1990sinfluenced by Spanish practice
What happened in the bridges with insufficient integrity due to absence of diaphragm?
Seismic force in the TR direction
Contact of a PC girder to stopper results infailure of lower flange, shear failure of web plate, rupture of deck slabs and connection between deck slab and upper flange
Example of damage due to lack of diaphragms
Llacolen BridgeConception
From Web
What happened if side stoppers on the top of pier cap were removed in addition to removal of diaphragms?
Vertical restrainers? !Resist Uplift? !Insufficient to constrain offset of abridge in the transverse direction
Example of damage due to lack of side stoppers and diaphragms
Las Mercedes Bridge Route 5
Bridges based on Pre Midrecent practice 1990s suffered more...
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