In apartment buildings in Korea, irregular walls, such as T-, L-, and U-shaped walls, are commonly used. However, in practical design, the geometric irregularities of walls are often neglected when determining the length of the lateral confinement region. Further, although earthquake loads apply from various directions, the lateral confinement region is typically determined for the in-plane direction of the web. Thus, using finite element analysis, this study investigated the structural performance of irregular walls subjected to various loading directions. As the design parameters, wall shape, cross-sectional aspect ratio, and loading direction were addressed. According to the parametric analysis results, as the length of flange in tension increased, the lateral confinement region should be evaluated with consideration of the geometric irregularity. Further, for the L- and U-shaped walls, it is recommended to evaluate the lateral confinement region for various loading directions. Based on these results, a design method to determine the lateral confinement region of irregular walls was suggested.

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1. 서 론
2. 해석 모델
    2.1 해석 변수 및 단면 상세
    2.2 해석 모델
    2.3 재료 모델
    2.4 모델 검증
3. 해석 결과
    3.1 하중-변위 관계
    3.2 파괴모드
    3.3 횡보강 영역 길이
4. 이형벽체의 횡보강범위 산정방법
5. 결 론
/ 감사의 글 /
/ REFERENCES /

• 윤성준(숭실대학교 건축학과 석사과정) | Yun Seong Jun (Master’s Course, School of Architecture, Soongsil University)
• 김성현(숭실대학교 건축학과 박사후연구원) | Kim Sung Hyun (Post Doctoral Researcher, School of Architecture, Soongsil University)
• 강수민(숭실대학교 건축학과 부교수) | Kang Su Min (Associate Professor, School of Architecture, Soongsil University) Corresponding author