A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic Retrofit of Existing Concrete Frame Structures Using Viscoelastic Damping Devices: A Research-in-Progress Update
The U.S. Army and Air Force have large inventories of concrete frame buildings built before the 1971 San Francisco earthquake, when seismic provisions in U.S. building codes were enhanced. Consequently, many of these buildings may not safely withstand the ground motions associated with large intensity earthquakes. The U.S. Army Construction Engineering Research Laboratories (USACERL) has developed a program to provide improved technologies for mitigating seismic hazards in older military buildings. This study investigated the effectiveness of a nonintrusive rehabilitation technique involving the addition of viscoelastic damping devices to a concrete structure. A one-third scale model of a concrete building was built and placed on the USACERL shaking table. The building was earthquake-tested using two sizes of dampers, and with no dampers in place. Preliminary observations showed that the model with dampers sustained only minimal damage. More detailed analysis continues.
Seismic Retrofit of Existing Concrete Frame Structures Using Viscoelastic Damping Devices: A Research-in-Progress Update
The U.S. Army and Air Force have large inventories of concrete frame buildings built before the 1971 San Francisco earthquake, when seismic provisions in U.S. building codes were enhanced. Consequently, many of these buildings may not safely withstand the ground motions associated with large intensity earthquakes. The U.S. Army Construction Engineering Research Laboratories (USACERL) has developed a program to provide improved technologies for mitigating seismic hazards in older military buildings. This study investigated the effectiveness of a nonintrusive rehabilitation technique involving the addition of viscoelastic damping devices to a concrete structure. A one-third scale model of a concrete building was built and placed on the USACERL shaking table. The building was earthquake-tested using two sizes of dampers, and with no dampers in place. Preliminary observations showed that the model with dampers sustained only minimal damage. More detailed analysis continues.
Seismic Retrofit of Existing Concrete Frame Structures Using Viscoelastic Damping Devices: A Research-in-Progress Update
J. R. Hayes (author) / E. M. Dausman (author) / B. L. Umbright (author) / D. A. Foutch (author) / S. L. Wood (author)
1995
32 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Structural Analyses , Buildings , Earthquake engineering , Retrofitting , Structural engineering , Hazards , Sizes(Dimensions) , Scale models , Viscoelasticity , Intensity , Damping , Concrete , Ground motion , Seismic waves , Inventory , Air force facilities , Frames , Rehabilitation , Seismology , Shaking , Vibrators(Mechanical) , Earthquake hazard mitigation engineering
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