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中文標題: 空間構架單一模態側推分析之探討
英文標題: The Study for the Single Modal Pushover Analysis of Space Frame Structures
編號: NCREE-11-029
語言: 中文
編輯:
媒體型式: 紙本
作者:
葉勇凱   周德光   蕭輔沛   
中文摘要: 耐震詳細評估係用以評估結構的耐震能力,目前最常見的分析方法為非
線性側推分析。ATC-40 介紹的非線性側推分析係基於平面構架,若運用於
空間構架時,必須加以修正。本文即探討空間構架的單模態側推分析與簡
單側推分析;並說明使用單一模態側推分析的原則,及指出ETABS 在ADRS
格式轉換公式的錯誤;針對空間構架的側推分析,建議以基於平面構架假
設的簡單側推分析,建立結構容量曲線與容量震譜,較能合理的評估結構
的耐震能力。
英文摘要: The detailed seismic evaluation is used to evaluate the seismic capacity of a structure. At present, the most commonly used analysis method is the nonlinear pushover analysis. The nonlinear pushover analysis introduced in ATC-40 is based on planar frames. To extend the pushover analysis method to space frames, a necessary modification is needed. In this report, the single modal pushover analysis and the simple pushover analysis of space frames are discussed. In addition, the restrictions of single modal pushover analysis are specified and the mistakes of ETABS in the transformation of ADRS format are also pointed out. For the pushover analysis of the space frame, the simple pushover analysis based on planar frames is suggested to establish the capacity curve and spectrum of structures. The simple pushover analysis can be used to evaluate the seismic capacity of structures reasonably.
關鍵字: 耐震詳細評估、模態側推分析、ETABS、容量曲線、容量震譜
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