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PC 벽체 수직접합부의 고장력볼트 연결방식 개발 및 실험적 평가
문교영 ( Moon Kyo Young ),김승직 ( Kim Sung Jig ),황원준 ( Hwang Won Jun ),전인근 ( Jeon In Geun ),이장헌 ( Lee Janghun ) 한국구조물진단유지관리공학회 2022 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.26 No.2
본 연구는 PC 벽체 수직접합부의 연성능력 향상을 위하여 개발한 고장력볼트 적용 수직접합부를 소개한다. 개발 수직접합부의 성능을 평가하기 위하여 현재 많이 사용되는 기존 접합부를 포함하여 실험체 설계 및 제작하였으며, 일정한 축력하에 정적반복가력실험을 수행하였다. 실험 수행 후 관찰된 균열 및 파괴양상, 이력거동 및 에너지소산 등을 기준 실험체와 비교하여 성능을 평가하였다. 실험 결과, 개발 수직접합부 적용 PC 벽체의 경우 균열 및 손상 저감과 더불어 연성능력 향상을 통해 취성파괴를 방지하는데 효과적인 것으로 나타났다.
파쇄석이 혼합된 뒷채움재 보강토 옹벽의 변위거동에 대한 사례분석
김영묵,전인근 한밭대학교 건설안전기술연구소 2003 건설안전기술논문집 Vol.3 No.-
In order to assess the behavior characteristics and stability of the ribbed steel strip reinforced soil retaining wall using the granite soil included crushed stone as backfill material, a series of the field test construction and monitoring were conducted. Displacement gauges were installed on two site of the reinforced earth wall of the 7.5m height, to obtain displacements of the wall facing during and after construction. For the reinforced earth wall of the 15m height strain gauges were installed in 7 steps to measure displacement of the wall. A step of the reinforcements and the displacement of the reinforce earth body. In the results of monitoring, face horizontal displacements were measured by very small, and its measures were presented to satisfy the allowable criterion for that. From the results of this study, the increment of face displacement and reinforcements strain was measured very little after construction, and it was found that the most of deformations of wall and reinforcements were occurred during construction due to compaction work for backfills. The reason of the satisfied strain behavior in this test site is thought due to the good compaction control for the granite soil with crushed stone that has good friction property.