WHAT HAVE BEEN ACCOMPLISHED:
JMEC has been structural subconsultant to major Prime Consultants for 6 different on-call bridge seismic retrofit contracts for a total of 18 bridges for the California Department of Transportation.
For Contract 59X844, JMEC completed the seismic analysis, seismic retrofit strategy determination, seismic retrofit design, and provided construction design support services for three bridges including the Figueroa Street Undercrossing (L/R).
Each bridge is a 224-ft 3-span reinforced concrete box girders on double column bents. The bridge is skewed at 57 degrees. Steel column casings were used to maintain an open pedestrian walkway for pedestrian safety on both sides of Figueroa Street. Large diameter CIDH piles were installed to minimize rotation of the bridge due to the skewed end. The retrofit measures included:
JMEC has been structural subconsultant to major Prime Consultants for 6 different on-call bridge seismic retrofit contracts for a total of 18 bridges for the California Department of Transportation.
For Contract 59X844, JMEC completed the seismic analysis, seismic retrofit strategy determination, seismic retrofit design, and provided construction design support services for three bridges including the Figueroa Street Undercrossing (L/R).
Each bridge is a 224-ft 3-span reinforced concrete box girders on double column bents. The bridge is skewed at 57 degrees. Steel column casings were used to maintain an open pedestrian walkway for pedestrian safety on both sides of Figueroa Street. Large diameter CIDH piles were installed to minimize rotation of the bridge due to the skewed end. The retrofit measures included:
- Construct steel column casings
- Construct 72-in diameter CIDH piles with diaphragm bolsters at abutments
- Construct abutment lumber blockings
Project Role: Subconsultant for Bridge Design
Clients: California Department of Transportation
Parsons
Clients: California Department of Transportation
Parsons
Schedule: Construction was completed in 1998
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Tel: (925) 944-8999 Fax: (925) 944-9998
165 Lennon Lane, Suite 106, Walnut Creek, CA 94598
Tel: (925) 944-8999 Fax: (925) 944-9998
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