Connaught (Cambie Street) Bridge
Vancouver, British Columbia, Canada
Client:
N.D. Lea
Consultants ltd.
1455 West Georgia St.
Vancouver, B.C.
Canada
Date:
Design completed 1985
Construction completed 1987
Scope of work:
Design
Construction cost:
US$ 33 Million
Services Performed:
- Bridge type selection
- Preliminary and final design
- Preparation of contact document
- Construction engineering support
Issues:
- Complex cantilever construction engineering
This project consisted of the main viaduct and multiple on- and off-ramps with a total length of 2100 m and spans of up to 32 m with deck width of up to 20 m. Overhanging wing elements are supported by a cast-in-place spine beam. The cast-in-place concrete for the deck was placed on the wing elements without additional shoring to form a solid connection between the wing elements and the spine beam. These main components were post-tensioned together to provide high structural efficiency. This type of construction was originally developed in 1971 for the San Francisco International Airport Elevated Roadway. T.Y. Lin International (TYLI) was the engineer of record.
- Kwong Cheng, current OPAC Principal, served as Lead Engineer while at TYLI. He performed design and analysis for this project.
