Currently, the construction trend of high-rise structures is changing from a cube-shaped box to a free-form. In the case of free-form structures, it is difficult to predict the behavior of the structure because it induces torsional deformation due to inclined columns and the eccentricity of the structure by the horizontal load. For this reason, it is essential to review the stability by considering the design variables at the design stage. In this paper, the position of the weak vertical member was analyzed by analyzing the behavior of the structure according to the change in the core position of the twisted high-rise structures. In the case of the shear wall, the shear force was found to be high in the order of proximity to the center of gravity of each floor of the structure. In the case of the column, the component force was generated by the axial force of the outermost beam, so the bending moment was concentrated on the inner column with no inclination.

Abstract
1. 서론
2. 편심코어(Eccentric Core)
3. 해석 일반사항
    3.1 해석모델
    3.2 해석방법
4. 해석 결과
    4.1 층간변형률
    4.2 절대 층 가속도 및 층 전단력
    4.3 코어 전단벽의 전단력
    4.4 기둥의 휨모멘트
5. 결론
References

• 채영원(영남대학교 일반대학원 건축학과, 석사과정) | Chae Young-Won (Dept. of Architecture, Yeungnam University)
• 김현수(선문대학교 건축학부 교수) | Kim Hyun-Su (Division of Architecture, Sunmoon University)
• 강주원(영남대학교 건축학부 교수) | Kang Joo-Won (School of Architecture, Yeungnam University) Corresponding author