DOI QR코드

DOI QR Code

비부착 강연선과 고강도 콘크리트를 적용한 철근콘크리트 외부 접합부의 내진 거동

Seismic Behavior of RC Beam-Column Exterior Joints with Unbonded Tendons and High Strength Concrete

  • Kwon, Byung Un (Department of Architecture & Architectural Engineering, Seoul National University) ;
  • Kang, Thomas H.-K. (Department of Architecture & Architectural Engineering, Seoul National University)
  • 투고 : 2015.07.21
  • 심사 : 2015.09.25
  • 발행 : 2015.11.01

초록

In the moment frame subjected to earthquake loads, beam-column joint is structurally important for ductile behavior of a system. ACI Committee 352 proposed guidelines for designing beam-column joint details. The guidelines, however, need to be updated because of the lack of data regarding several factors that may improve the performance of joints. The purpose of this study is to investigate the seismic performance of reinforced concrete exterior joints with high-strength materials and unbonded tendons. Three specimens with different joint shear demand-to-strength ratios were constructed and tested, where headed bars were used to anchor the beam bars into the joint. All specimens showed satisfactory seismic behavior including moment strength of 1.3 times the nominal moment, ductile performance (ductility factor = at least 2.4), and sufficiently large dissipated energy.

키워드

참고문헌

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