Structural Engineering and Mechanics

  • 제52권2호
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  • Pages.427-443
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  • 2014
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Interaction of internal forces of interior beam-column joints of reinforced concrete frames under seismic action

  • 투고 : 2013.03.17
  • 심사 : 2014.07.28
  • 발행 : 2014.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents detailed analysis of the internal forces of interior beam-column joints of reinforced concrete (RC) frames under seismic action, identifies critical joint sections, proposes consistent definitions of average joint shear stress and average joint shear strain, derives formulas for calculating average joint shear and joint torque, and reports simplified analysis of the effects of joint shear and torque on the flexural strengths of critical joint sections. Numerical results of internal joint forces and flexural strengths of critical joint sections are presented for a pair of concentric and eccentric interior connections extracted from a seismically designed RC frame. The results indicate that effects of joint shear and torque may reduce the column-to-beam flexural strength ratios to below unity and lead to "joint-yielding mechanism" for seismically designed interior connections. The information presented in this paper aims to provide some new insight into the seismic behavior of interior beam-column joints and form a preliminary basis for analyzing the complicated interaction of internal joint forces.

키워드

참고문헌

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피인용 문헌

  1. Nonlinear seismic analysis of a super 13-element reinforced concrete beam-column joint model vol.11, pp.5, 2016, https://doi.org/10.12989/eas.2016.11.5.905
  2. The influence of construction joint on the seismic behavior of reinforced concrete frame structure vol.20, pp.7, 2017, https://doi.org/10.1177/1369433216673643
  3. The influence of vertical ground motion on the seismic behavior of RC frame with construction joints vol.11, pp.3, 2016, https://doi.org/10.12989/eas.2016.11.3.407
  4. Behavior of SFRC interior beam-column joints under cyclic loading vol.7, pp.3, 2014, https://doi.org/10.12989/smm.2020.7.3.167