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 frame bridges, thereby improving the seismic performance of the bridge.
●Double Steel Pipe Brace The double steel pipe brace consists of a damper made of steel pipes, with the axial force pipe using 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 of the axial force pipe without buckling during compression, providing stable energy absorption capability 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
