A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Application of Shape Memory Alloys in Seismic Rehabilitation of Bridges
Recent earthquakes in the United States and Japan have highlighted the vulnerability of bridges to moderate and strong ground motion. During the 1995 Kobe earthquake, 60% of all bridges in the city were damaged, with a total cost estimated at over 10 billion US dollars for their repair. Significant damage to bridges also occurred in the 1994 Northridge and 1989 Loma Prieta earthquakes. A major problem in all three earthquakes was excessive movement at the hinges due to bearing and restrainer failure. Recent earthquakes have shown that conventional hinge restrainers used in the United States and Japan do not provide adequate protection from unseating, which can lead to collapse of bridges. The proposed research program will study the efficacy of using shape memory alloy restrainers and shape memory alloy core elastomeric bearings to reduce the seismic vulnerability of bridges.
Application of Shape Memory Alloys in Seismic Rehabilitation of Bridges
Recent earthquakes in the United States and Japan have highlighted the vulnerability of bridges to moderate and strong ground motion. During the 1995 Kobe earthquake, 60% of all bridges in the city were damaged, with a total cost estimated at over 10 billion US dollars for their repair. Significant damage to bridges also occurred in the 1994 Northridge and 1989 Loma Prieta earthquakes. A major problem in all three earthquakes was excessive movement at the hinges due to bearing and restrainer failure. Recent earthquakes have shown that conventional hinge restrainers used in the United States and Japan do not provide adequate protection from unseating, which can lead to collapse of bridges. The proposed research program will study the efficacy of using shape memory alloy restrainers and shape memory alloy core elastomeric bearings to reduce the seismic vulnerability of bridges.
Application of Shape Memory Alloys in Seismic Rehabilitation of Bridges
R. DesRoches (author)
2002
56 pages
Report
No indication
English
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