Quebec City, Canada
The Pierre Laporte Bridge is a suspension Bridge, which spans the St. Lawrence River at Québec City, Québec, Canada. Opened in 1970, the bridge carries six (6) lanes of vehicular traffic, with a total length of 1,040.5 m and 27.4 m width. The main suspension span is 667.5 m long and each side span is 186.5 m long. Two main suspension cables, made of parallel high strength steel wires, support the bridge.
BTC provides consultancy services for the 2018 & 2020 internal inspection of the main suspension cables of Pierre Laporte Bridge. The scope of BTC’s consultancy work is to apply the BTC method to assess the remaining strength of the main suspension cables. The work includes inspection of panel openings, replacement of suspender ropes, extracting wire samples from opened panels, testing of sampled wires, and strength evaluation of the main suspension cables, based on inspection and testing results, utilizing the BTC method.
The cable Investigation comprises: