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한국지진공학회|논문집 2022년 5월

논문명 조적채움벽을 갖는 RC 벽?슬래브 골조의 내진성능 연구 / Investigation of Seismic Performance of RC Wall-Slab Frames with Masonry Infill
저자명 김찬호 ; 이승제 ; 허석재 ; 엄태성
발행사 한국지진공학회
수록사항 한국지진공학회 논문집, Vol.26 No.3(통권 147호) (2022-05)
페이지 시작페이지(137) 총페이지(11)
ISSN 1226-525X
주제분류 구조
주제어 ; Masonry infill; Wall-slab frame; Infilled frame; Cyclic test; Seismic performance
요약2 This study investigated the seismic performance of reinforced concrete (RC) wall-slab frames with masonry infills. Four RC wall-slab frames with or without masonry infill were tested under cyclic loading. The RC frames were composed of in-plane and out-of-plane walls and top and bottom slabs. For masonry infill walls, cement bricks were stacked applying mortar paste only at the bed joints, and, at the top, a gap of 50 mm was intentionally left between the masonry wall and top RC slab. Both sides of the masonry walls were finished by applying ordinary or fiber-reinforced mortars. The tests showed that despite the gap on top of the masonry walls, the strength and stiffness of the infilled frames were significantly increased and were different depending on the direction of loading and the finishing mortars. During repeated loading, the masonry walls underwent horizontal and diagonal cracking and corner crushing/spalling, showing a rocking mode inside the RC wall-slab frame. Interestingly, this rocking mode delayed loss of strength, and as a result, the ductility of the infilled frames increased to the same level as the bare frame. The interaction of masonry infill and adjacent RC walls, depending on the direction of loading, was further investigated based on test observations.
소장처 한국지진공학회
언어 한국어
DOI https://doi.org/10.5000/EESK.2022.26.3.137