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적응적 횡하중 분배방법을 이용한 건축구조물의 내진성능평가
Seismic Performance Evaluation of Building Structures Based on the Adaptive Lateral Load Distribution

이동근   (성균관대학교 건축공학과UU0000759  ); 최원호   (㈜마이다스아이티(MIDASIT)  ); 정명채   (전주대학교 건축공학과UU0001133  );
  • 초록

    성능에 기초한 내진설계 분야에서 구조물의 내진성능평가를 위해서는 비탄성 지진거동을 보다 정확하게 예즉할 필요가 있다. 성능기초 설계기준에 반영되어 있는 내진성능 평가 방법 가운데 하나인 pushover해석을 이용한 방법은 몇몇 연구자들에 의하여 다양한 해석 방법론이 개발되었다. 이 방법을 사용하여 비탄성 전체 또는 국부적 지진응답을 보다 정확하게 평가하기 위해서는 사용되는 횡하중 분배가 구조시스템과 지반운동의 동적특성에 부합되도록 반영되어야 한다. 그리고 구조물의 변형능력을 합리적으로 평가하여 성능점을 보다 정확하게 산정해야 한다. 본 연구에서는 개선된 적응적 횡하중 분배방법과 건물의 등가응답을 이용하여 비탄성 지진응답을 정확하고 효율적으로 평가할 수 있는 방법을 제안하였다. 제안된 방법은 건물의 전체 비탄성 거동에 대한 내진성능을 평가하고 국부적인 비탄성 지진응답을 정확하게 산정하는데 사용될 수 있다. 또한 제안된 방법의 정확성과 타당성을 검증하기 위해서 비탄성 시간이력해석과 기존의 다른 해석방법들에 의한 비탄성 지진응답과 비교하였다.


    It is very important that predict the inelastic seismic behavior exactly for seismic performance evaluation of a building in the performance based seismic design. Evaluation method of seismic performance based on the pushover analysis reflected in PBSE was developed by some researchers. For the evaluation of inelastic global and local seismic responses by pushover analysis exactly. lateral load distribution should be adjusted and reflected the dynamic characteristics of structural system and various seismic ground motions. And performance point should be determined based on the evaluation of reasonable deformation capacity of a building more exactly. An effective method based on the improved the adaptive lateral load distribution and the equivalent responses of a multistory building is proposed in this study to efficiently estimate the accurate inelastic seismic responses. The proposed method can be used to evaluate the seismic performance for the global inelastic behavior of a building and to accurately estimate its local inelastic seismic responses. In order to demonstrate the accuracy and validity of this method, inelastic seismic responses estimated by the proposed method are compared with those obtained from other analytical methods.


  • 주제어

    적응적 횡하중 분배방법 .   등가응답 .   비탄성 정적해석 .   비탄성 .   시간이력해석.  

  • 참고문헌 (31)

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