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Title |
Seismic Performance Enhancement of Residential Flat Plate Structure by Using Base Isolation Devices
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Keywords |
무량판구조 ; 면진 ; 포락해석 ; 설계지진 ; 최대지진 ; 시간이력 해석 Flat plate structure. Base isolation ; Envelope curve analysis ; Design base earthquake ; Maximum considerable earthquake ; Time history analysis |
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Abstract |
For the seismic performance enhancement of residential flat plate structure and for the selection of earthquake records, the possibility of base isolation is evaluated and the time history results are reviewed. By evaluating a base isolated stiffness, a target period, and an envelope curve analysis, seismic performance of structure, which has strong rotational mode, is evaluated. For the propriety evaluation of earthquake records usage and scaling method, time history analysis is done with variables such as DBE(design base earthquake) level, MCE(maximum considerable earthquake) level, and 1.4DBE level. From the analysis results, following conclusions can be made; the earthquake records, which are used in base isolation analysis, should be selected by similar soil type which the structure is considered, and should be intensity scaled in a range of mean ± standard deviation of code based design response spectrum.
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