| 英文摘要 |
Many existing structures in Taiwan were built according to an outdated Design Code of Buildings, and some of these buildings, especially historical ones, did not even include consideration of seismic forces in their design. Such buildings are dangerous according to evaluations for seismic capacity using current design codes. Therefore, it is important that evaluations include a check on their seismic capacity, and if it is insufficient, retrofitting is necessary to increase seismic capacity and to meet the seismic demand. Conventional retrofitting such as reinforced concrete jacketing and use of shear walls and wing walls are possible solutions. However, these conventional retrofit methods may change the appearance of structures, which is not desirable for historical buildings. Seismic isolation is an alternative way to retrofit historical buildings by reducing the seismic demand. In this paper, a preliminary design procedure for structural retrofitting with an isolation system using a friction pendulum is introduced. The design procedure is demonstrated with a two-story reinforced concrete benchmark structure as the retrofit target. |
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