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Seismic retrofit of bridges
Carbon fiber reinforced polymer retrofitting
The 2008 "5 • 12" Wenchuan earthquake and the 2010 "8 14" debris flow of double damage, the bridge wind cable completely destroyed, retrofitting with the carbon fiber reinforced polymer on the bridge head and sticking steel plate on the base.
Project introduction
The unity bridge is located in Yingxiu Town, Wenchuan County, Sichuan province. It is a suspension bridge with a length of 98.5 meters and a width of 2.5 meters.
Existing problems
The 2008 "5 • 12" Wenchuan earthquake and the 2010 "8 14" debris flow of double damage, the bridge wind cable completely destroyed, the bridge is seriously deformed, plus steel structure corrosion seriously, has become a dangerous bridge.
Reinforcement scheme
Sandblasting and derusting treatment of the original steel wire, adjusting the stress of the steel cable, replacing the steel plate and suspender of the bridge deck, reinforcing the carbon fiber reinforced polymer on the bridge head and sticking steel plate on the base.
