In this paper, the dynamic response was analyzed by performing linear dynamic analysis using historic earthquake loads on twisted-shaped structures and fixed structure among free-form high-rise structures with atypical elevation shape following prior studies. In addition, the dynamic characteristics of the analysis models according to the plane rotation angle of the twisted structure were compared and analyzed. As a result of the analysis, as the plane rotation angle of the twisted structure increased, the interlayer deformation rate increased in the high-rise part of 50th floors or more. The story shear force and the story absolute acceleration were similar in the entire structure. In the case of the story shear force, the response of the twisted shape model was rather reduced in the middle part. As a result of analyzing the dynamic response, the vulnerable layer where the response amplification of the twisted structure occurs was found to be 31st story.

Abstract
1. 서론
2. 해석 모델
    2.1 해석 모델 개요
    2.2 해석 방법
    2.3 해석 모델의 동적특성
3. 해석 결과
    3.1 최대 층간변형률
    3.2 최대 층 전단력
    3.3 층 절대가속도
4. 결론
References

• 이다혜(영남대학교 일반대학원 건축학과) | Lee Da-Hye (Department of Architecture, Yeungnam University)
• 김현수(선문대학교 건축학부) | Kim Hyun-Su (School of Architecture, Sunmoon University)
• 강주원(영남대학교 건축학부) | Kang Joo-Won (School of Architecture, Yeungnam University) 교신저자