http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
RC 벽식 아파트의 손상 제어를 위한 PC 비내력벽 시스템의 실험적 평가
문교영,김시윤,김승직,이기학 한국공간구조학회 2019 한국공간구조학회지 Vol.19 No.4
This study introduces a newly developed PC non-bearing wall system to prevent the damage of RC wall-type apartments that have been heavily damaged by the 2017 Pohang Earthquake. In order to evaluate the performance of the developed PC non-bearing wall system, a static cyclic test is conducted. The prototype of test specimen is from the RC wall-type apartment which has been severely damaged by the 2017 Pohang Earthquake. The specimen with the conventional non-bearing wall system showed the similar damage of RC wall type apartment suffered from the Pohang Earthquake. In case of the specimen with the developed PC non-bearing wall system, cracks and damages were not transmitted between the walls due to the seismic slit and there were almost no cracks in the non-bearing walls. Therefore, the proposed non-bearing wall system, separated from the structural walls, could prevent spreading cracks to bearing walls and make it possible to effectively control damage due to earthquake loads.
문교영,김승직,이기학,김용남 한국공간구조학회 2022 한국공간구조학회지 Vol.22 No.4
The paper introduces an experimental program for the newly developed vertical joints between Precast Concrete (PC) walls to improve their in-plane shear capacity. Compared to the existing vertical joints, two types of vertical joints were developed by increasing the transverse reinforcement ratio and improving frictional force at the joint interface. A total of four specimens including the Reinforced Concrete (RC) wall and PC walls with developed vertical joints were designed and constructed. The constructed specimens were experimentally investigated through monotonic shear tests. The observed damage, load-deformation relationship, strain and strength are investigated and compared with the cases of RC wall specimen. Experimental results indicate that the maximum force and initial stiffness of the PC wall with proposed vertical joints were decreased by comparing with those of RC wall. However, the ultimate displacement increased by up to 217.30% compared to the RC wall specimen. In addition, brittle failure did not occurred and relatively few cracks and damages occurred
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.