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U형 프리캐스트 콘크리트 벽패널로 채운 기존 철근 콘크리트 보-기둥 구조물의 휨 거동 분석

Analysis on the Flexural Behavior of Existing Reinforced Concrete Beam-Column Structures Infilled with U-Type Precast Wall Panel

  • 투고 : 2015.04.10
  • 심사 : 2015.04.28
  • 발행 : 2015.09.01

초록

이 연구의 목표는 학교 건물과 같은 저층 보-기둥 철근콘크리트 구조 건물에서 프리캐스트 벽패널을 사용한 새로운 내진보강 방법을 개발하는 것이다. 1개의 무 보강 보-기둥 실험체와 U형 PC 벽패널로 보강한 2개의 보강 보-기둥 실험체에 대한 정적 이력 하중실험을 진행하였다. 앵커접합 PR1-UA 실험체와 철판접합 PR1-UP 실험체는 무 보강 실험체보다 평균 2.8배(평균 591.8 kN)의 강도 증가를 보여 주었다. 최대 변위비도 1.4%에서 2.7%사이 값을 보여주었다. RC 골조 우측 상단에서 좌측방향으로 가력 할 때 우측에 있는 RC 기둥과 보강 PC 패널의 수직 요소는 완전 합성상태로 가정하였고, 좌측에 있는 RC 기둥과 PC 패널은 완전 비 합성 거동하는 것으로 가정하여 해석한 결과 전체적인 휨 거동은 실험 결과와 대체적으로 부합하는 것으로 판단되었다.

This study aims at developing a new seismic resistant method by using precast concrete wall panels for existing low-rise, reinforced concrete beam-column buildings such as school buildings. Three quasi-static hysteresis loading tests were performed on one unreinforced beam-column specimen and two reinforced specimens with U-type precast wall panels. Seismic resistant test of anchored and welded steel plate connections manifested an average of 2.8 times increase in the maximum loading (average 591.8 kN) in comparison to unreinforced beam-column specimen. The maximum drift ratios were also shown between 1.4% and 2.7%. An analytical study was performed while assuming the RC column on the right side and the vertical element of the reinforced PC panel to behave in completely composite manner and the RC column on the left side and PC panel to behave in completely non-composite manner when loading was exerted from upper right end of RC frame of specimen to its left side. It was found with the assumptions that the overall flexural behavior in principle agreed with the experimental result.

키워드

참고문헌

  1. Anil, O., and Altin, S. (2006), An Experimental Study on Reinforced Concrete Partially Infilled Frames, Engineering Structures.
  2. Mehrabi, A. B. et al. (1996), Experimental Evaluation of Masonry-Infilled RC Frames, Journal of Structural Engineering.
  3. Kim, R. C., and Lee, L. H. (1986), The Behaviour of Infill -ed Frames, Journal of the Architectural Association Fall Conference (structural system).
  4. Kim, K. D., and Jeong, B. J. (1986), A Study on the Effect of Openings on the Lateral Stiffness of Infilled Frames, Journal of the Architectural Association Fall Conference (structural system).
  5. Sakai, Y. (2008), For earthquake that occurred in Sichuan Province, China, http://www.kz.tsukuba.ac.jp/-sakai/080516.htm.
  6. ACI committee 374 (2014), Acceptance Criteria for Moment Frames based on Structural Testing and Commentary, ACI 374.1.05

피인용 문헌

  1. Shear Tests on Subassemblies Representing the Multi-anchored Connection between PC Wall Panels and RC Frames vol.22, pp.12, 2018, https://doi.org/10.1007/s12205-017-1156-y