Bridge dampers (double steel pipe dampers, J-UP braces)
As a seismic control component, this method absorbs seismic energy by installing it in arch bridges and rigid-frame bridges, thereby improving the seismic performance of the bridge.
●Double Steel Pipe Brace The damper consists of steel pipes, with the axial force pipe made of low yield point steel (JFE-LY225S). The outer pipe (reinforcing pipe) is structured to restrain the buckling of the axial force pipe. The double steel pipe brace can undergo plastic deformation without buckling during compression and has stable energy absorption capacity against repeated earthquakes. ●J-UP Brace The J-UP brace is a buckling-restrained brace that sandwiches a core material transmitting axial force between a pair of steel mortar plates, demonstrating stable restoring force characteristics even in high-strain regions.
- Company：JFEシビル 社会基盤事業部
- Price：500,000 yen-1 million yen
