최근 고인성의 내진철근이 개발되어 실무에 적용되기 시작하는 추세이다. 그러나, 설계기준 상에 내진철근의 특성이 반영된 별도의 조항이 없고, 일반철근에 비하여 가격이 비싸 보편적으로 사용되지는 못한 실정이다. 이에 본 연구에서는 효과적인 내진철근의 사용을 위한 근거자료의 축적을 위하여 총 7개의 실물크기 특수전단벽 실험체를 대상으로 벽체에 작용하는 중력하중의 크기와 사용철근의 종류를 변수로 한 반복 주기하중 재하 실험을 수행하였다. 그 결과 내진철근을 사용한 경우 일반철근을 사용한 경우에 비하여 내진성능이 우수하게 나타났으며, 이와 같은 성능의 차이는 벽체에 작용하는 중력하중의 크기가 클수록 두드러졌다. 또한 동일한 철근비를 갖는 경우 내진철근의 직경이 큰 경우가 유리한 것으로 나타났다.
최근 고인성의 내진철근이 개발되어 실무에 적용되기 시작하는 추세이다. 그러나, 설계기준 상에 내진철근의 특성이 반영된 별도의 조항이 없고, 일반철근에 비하여 가격이 비싸 보편적으로 사용되지는 못한 실정이다. 이에 본 연구에서는 효과적인 내진철근의 사용을 위한 근거자료의 축적을 위하여 총 7개의 실물크기 특수전단벽 실험체를 대상으로 벽체에 작용하는 중력하중의 크기와 사용철근의 종류를 변수로 한 반복 주기하중 재하 실험을 수행하였다. 그 결과 내진철근을 사용한 경우 일반철근을 사용한 경우에 비하여 내진성능이 우수하게 나타났으며, 이와 같은 성능의 차이는 벽체에 작용하는 중력하중의 크기가 클수록 두드러졌다. 또한 동일한 철근비를 갖는 경우 내진철근의 직경이 큰 경우가 유리한 것으로 나타났다.
Recently, seismic resistant steel deformed bar has been developed and applied to practical applications. However, there is no provision that reflects the characteristics of seismic reinforcing bars on the design code, and the price is higher than that of ordinary reinforcing bars, and thus it cannot...
Recently, seismic resistant steel deformed bar has been developed and applied to practical applications. However, there is no provision that reflects the characteristics of seismic reinforcing bars on the design code, and the price is higher than that of ordinary reinforcing bars, and thus it cannot be universally used. In this study, seven full-scale specimens were subjected to cyclic loading tests, in order to accumulate evidence for the use of effective seismic reinforcing bars. The variables of the experiment are the magnitude of the gravity load acting on the wall and the material properties of the reinforcing bars used in this study. As a result, the seismic performance of the wall using seismic reinforcing bars was superior to that of the wall using ordinary reinforcing bars, and the difference in performance was remarkable when the gravity load acting on the wall was large. Also, it was advantageous to use seismic reinforcing bar with large diameter when the longitudinal reinforcement ratio is the same.
Recently, seismic resistant steel deformed bar has been developed and applied to practical applications. However, there is no provision that reflects the characteristics of seismic reinforcing bars on the design code, and the price is higher than that of ordinary reinforcing bars, and thus it cannot be universally used. In this study, seven full-scale specimens were subjected to cyclic loading tests, in order to accumulate evidence for the use of effective seismic reinforcing bars. The variables of the experiment are the magnitude of the gravity load acting on the wall and the material properties of the reinforcing bars used in this study. As a result, the seismic performance of the wall using seismic reinforcing bars was superior to that of the wall using ordinary reinforcing bars, and the difference in performance was remarkable when the gravity load acting on the wall was large. Also, it was advantageous to use seismic reinforcing bar with large diameter when the longitudinal reinforcement ratio is the same.
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