In this study, material tests were performed on the masonry specimens constructed with bricks and mortar used in Korea. The specimens included two types of thickness(0.5B and 1.0B) and physical conditions (good and poor). It was shown that 1.0B specimens have 3.2~1.8 times larger shear strength than 0.5B specimens and shear strength of specimens in poor condition was 66%~38% of those in good condition. Average shear stress of masonry-infills was calculated from previous experimental studies, and relationships with failure mode, material strength of masonry, aspect ratio, and frame-to-infill strength ratio were investigated. In addition, the effects of masonry strength on the seismic performance of a masonry-infilled frame was studied using a simple example building. It can be seen that the obtained average shear stress were considerably higher than the default masonry shear strength recommended by the ASCE 41, and low values the strength of masonry does not guarantee conservative evaluation results due to the early shear failure of frame members.

1. 서 론
 2. 조적채움벽의 파괴모드 및 전단강도식
 3. 조적재료시험
 4. 조적채움벽의 평균전단강도
 5. 채움벽의 전단강도에 따른 내진성능
 6. 결 론
 / 감사의 글 /
 / REFERENCES /

• 유은종(한양대학교 건축공학과) | Yu Eunjong Corresponding author
• 김민재(한양대학교 건축공학과) | Kim Min Jae
• 이상현(한양대학교 건축공학과) | Lee Sang Hyun
• 김충만(한양대학교 건축공학과) | Kim Chung Man