A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic performance of structures connected by viscoelastic dampers
AbstractThis study investigates the effect of installing viscoelastic dampers (VEDs) in places such as seismic joints or building–sky-bridge connections to reduce earthquake-induced structural responses. To investigate the effectiveness of the proposed scheme, parametric studies are conducted first using single-degree-of-freedom systems connected by VEDs and subjected to white noise and earthquake ground excitations. From the parametric study, it is shown that there exists a certain size of a VED that minimizes the dynamic responses of the structures, and that such a scheme is effective only when the natural frequencies are different enough. Then dynamic analyses are carried out with 5-story and 25-story rigid frames connected to braced-frames. According to the analysis results, the use of VEDs in seismic joints or in sky-bridges can be effective in reducing earthquake-induced responses if the connected structures are designed in such a way that the natural frequencies become quite different. This can be achieved by designing the connected structures to have different structural systems.
Seismic performance of structures connected by viscoelastic dampers
AbstractThis study investigates the effect of installing viscoelastic dampers (VEDs) in places such as seismic joints or building–sky-bridge connections to reduce earthquake-induced structural responses. To investigate the effectiveness of the proposed scheme, parametric studies are conducted first using single-degree-of-freedom systems connected by VEDs and subjected to white noise and earthquake ground excitations. From the parametric study, it is shown that there exists a certain size of a VED that minimizes the dynamic responses of the structures, and that such a scheme is effective only when the natural frequencies are different enough. Then dynamic analyses are carried out with 5-story and 25-story rigid frames connected to braced-frames. According to the analysis results, the use of VEDs in seismic joints or in sky-bridges can be effective in reducing earthquake-induced responses if the connected structures are designed in such a way that the natural frequencies become quite different. This can be achieved by designing the connected structures to have different structural systems.
Seismic performance of structures connected by viscoelastic dampers
Kim, Jinkoo (author) / Ryu, Jingook (author) / Chung, Lan (author)
Engineering Structures ; 28 ; 183-195
2005-05-30
13 pages
Article (Journal)
Electronic Resource
English
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