석조문화재의 풍화물성을 고려한 구조보강방법 연구
A Study on Structural Reinforcement Suitable for the Weathering Properties of Stone Cultural Heritage
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참고문헌
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초록
본 연구에서는 석조문화재에 대한 금속보강재의 최소 개입을 통해 원형부재의 이차 훼손을 줄이고 , 동시에최대의 구조보강 효과를 얻을 수 있도록 제안된 실험을 통해 처리기술의 객관적 기준을 다음과 같이 설정하였다. 첫째, 금속보강재의 설계 기준은 석조문화재의 풍화도에 따라 보강재비의 산정이 이루어져한다. 둘째, 석조문화재의 원형이부분적으로 훼손되어 형태나 구조적으로 보강이 필요할 때 보형처리(구부재 + 신석재 접합)는 풍화등급이 높은 부재를기준으로 금속보강재 비율을 계획해야 한다. 본 연구를 바탕으로 석조문화재의 구조적인 안정을 꾀할 수 있는 조건을고려한 금속보강재 비율을 풍화영역별로 제시하면, 접합단면 대비 800kgf/cm2 이하는 0.13∼0.23, 800kgf/cm2 이상1200kgf/cm2 이하는 0.24∼0.28, 1200kgf/cm2 이상은 0.29∼0.5의 금속보강재비를 권장할 수 있다. 특히 더욱 세분화된풍화등급에 따른 금속보강재의 적용 여부는 석조물의 파괴계수와 금속보강재의 물성을 고려하여야 할 것으로 사료된다.
Abstract
At this, in this study, some tests were conducted to come up with a method to minimize intervention, to reduce the secondary damage to original materials, and to produce remarkable reinforcing effects. The followings show objective standards. The proportion of original material to steel reinforcement bar (the ratio of steel reinforcement bar) needs to be calculated in light of weathering intensity. Second, in the case of partial damage, prosthetic treatment is applied to add new stone materials to original materials. In that case, the ratio of steel reinforcement bar should be calculated based on material that is highly resistant to weathering. With the results of this study, it is possible to suggest conditions that can structurally stabilize stone cultural heritage, according to the weathering area. As a result, the ratio of steel reinforcement bars can be 0.13 to 0.23 in the case of 800kgf/cm2 or less, 0.24 to 0.28 in 800kgf/cm2 or higher, and 0.29 to 0.5 in 1200kgf/cm2 or higher. In particular, there is the need to take the coefficient of rupture of stone material and the properties of the steel reinforcement bar into account in cases of calculating the ratio of steel reinforcement bars according to weathering intensity.
참고문헌 (10)
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