In this paper, the RC column-based joint connection part carry out loading test by reinforced hollow or extended Base Plate in order to confirm that RC joint punching shear reinforcement effect of applying the Base Plate. Base Plate thickness, extension length, size, and type as the variable, Base Plate suitable for the stress distribution and shape and dimensions confirmed through experiment and then reinforcing effect was analyzed. Experimentally, vertical load transmitted to the Base Plate from column to foundation is effective to stress distribution and then, type of hollow reinforcement more efficient than a closed. Through experiment, improve performance and ductility due to reinforcement and relative to the thickness of the existing foundation reduced even showed better performance than the existing. The behavior of the reinforced specimens be able to induce from brittle to ductile. Experiment on loading to destroy performed the pattern of cracks, destruction aspect before and after reinforcement.

1. 서 론
 2. 기초판 설계 검토
  2.1 기초판 설계 방법 검토
  2.2 Base Plate 장치 개요
  2.3 압축응력 분산도 및 보강 효과 분석
 3. 실내실험 및 결과
  3.1 실험체 계획
  3.2 실험체 제원 및 제작
  3.3 실험방법
 4. 실험결과 및 분석
  4.1 Base Plate의 내민길이에 따른 하중-변형률
  4.2 실험체의 하중-처짐량 관계
  4.3 균열 및 파괴양상
 5. 결 론
 감사의 글

• 김성겸(정회원, 금오공과대학교 토목공학과 박사과정) | Seong-Kyum Kim
• 박종권(정회원, 국토교통부 익산지방국토관리청 과장) | Jong-Kwon Park
• 한상희(정회원, 한라건설 해외사업본부장 전무) | Sang-Hee Han
• 김병철(정회원, 금호산업 토목사업팀 부장) | Byung-Cheol Kim
• 장일영(정회원, 금오공과대학교 토목환경공학부 교수) | Il-Young Jang 교신저자