논문 상세보기
Various non-seismic tie details are frequently used for one- and two-story small buildings because the seismic demand on their deformation capacities is not relatively significant. To evaluate the effects of the non-seismic tie details on the seismic performance of reinforced concrete columns, six square columns with a cross section of 400 × 400 mm and six rectangular columns with a cross section of 250 × 640 mm were tested. The anchorage details at both ends and spacing of tie hoops, along with the cross-sectional shape and the magnitude of axial load, were considered as the primary test parameters. Test results showed that square columns had higher stiffness and lower lateral deformation rather than rectangular columns. Both lap spliced tie and U-shaped tie provided comparable or improved seismic performance to 90° hook tie in terms of maximum strength, ductility, and energy dissipation. The predicted curves with modeling parameters in ASCE41-13 were conservative for test results of lap spliced tie and U-shaped tie specimens since plastic behavior after flexural yielding could not be considered. For economical design, ASCE41-13 should be revised with various test results of tie details.
2. 실험계획
2.1 실험체 상세
2.2 가력 및 계측 방법
3. 실험결과 및 분석
3.1 재료 실험결과
3.2 일반기둥 실험체의 하중-변위비 관계 및 파괴양상
3.3 벽기둥 실험체의 하중-변위비 관계 및 파괴양상
3.4 횡철근 대안상세의 내진성능
4. 횡철근 상세에 따른 기둥의 비선형 모델링
4.1 유효탄성강성
4.2 비선형 모델링 변수
5. 결 론
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