Due to the recent increase in domestic seismic activity and the proliferation of PC structure buildings, there is a pressing need for a fundamental study to develop and revise the design criteria for Half-PC slabs. In this study, we propose criteria for determining the rigid diaphragm based on the aspect ratio of Half-PC slabs and investigate the structural effects based on the presence of chord element installation. This study concluded that Half-PC slabs with an aspect ratio of 3.0 or lower can be designed as rigid diaphragms. When chord elements are installed, it is possible to design Half-PC slabs with an aspect ratio of 4.0 or lower as rigid diaphragms. In addition, the increase in the aspect ratio of the Half-PC slab leads to a decrease in the in-plane stiffness of the structure, confirming that the reduction effect of the maximum displacement in force direction (max ) due to the increase in wall stiffness is predominantly influenced by flexibility.

1. 서 론
2. 격막의 개요
    2.1 격막의 특성
    2.2 등가 보 모델(Equivalent Beam Model) 설계법
3. Half-PC형 슬래브의 유한요소해석
    3.1 모델링
4. 해석 결과
5. 결 론
/ 감사의 글 /
/ REFERENCES /

• 임규석(인하대학교 건축공학과 석사과정) | Lim Gyu Seok (Graduate Student, Department of Architecture Engineering, Inha University)
• 장원석(인하대학교 건축공학과 선임연구원) | Jang Won Seok (Senior Researcher, Department of Architecture Engineering, Inha University)
• 정성훈(인하대학교 건축공학과 교수) | Jeong Seong-Hoon (Professor, Department of Architecture Engineering, Inha University) Corresponding author