Advances in Computational Design

  • 제6권4호
  • /
  • Pages.257-278
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  • 2021
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  • 2383-8477(pISSN)
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  • 2466-0523(eISSN)
테크노프레스 (Techno-Press)
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Study on non-linear static behavior of 2D low-rise RCC framed structure subjected to progressive collapse

  • Sheikh, Tariq Ahmad (Department of Civil Engineering, National Institute of Technology) ;
  • Banday, J.M. (Department of Civil Engineering, National Institute of Technology) ;
  • Hussain, Mohammed A. (Department of Civil Engineering, I.S.L Engineering College)
  • 투고 : 2020.09.05
  • 심사 : 2021.09.17
  • 발행 : 2021.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, the progressive collapse behavior (full load and displacement control methods) of low-rise models representing 2-bay2storey and 3-bay3storey reinforced concrete framed structures located in high seismic zone, designed by Indian codes(IS 456:2000 and IS 1893-2016)for envelope loading combination are assessed with and without U.S. General Services Administration (GSA) guidelines. For displacement-controlled mechanism, a target displacement of 2%, 4% and 5% of the height of structure are considered. Non-linear static behavior of the structure is investigated through (a) Hinge formation pattern (b) Displacement of Joints adjacent to removed column along x-axis and z-axis(c) and Pushdown capacity curves. The results indicate that the Hinge formation patterns are similar for envelope loading combination and GSA loading combination, and the accuracy of the displacement-controlled method is much remarkable compared to full load method, therefore a standard formula is obligatory for calculating the target displacement to control progressive collapse, based on structural requirements unlike the dynamic increase factor calculations based on the structural capacity. With increase in each span and height of structure consecutively, pushdown capacity curves indicate that the base shear increases approximately by two times whereas the displacement in downward direction reduces by 59% and 62.4% for corner column removal and middle column removal cases respectively.

키워드

과제정보

The research work presented in this paper was financially supported by the fellowship from National Institute of Technology Srinagar. The authors want to express their deepest appreciation to the institute administration for their kind support in doing this research.

참고문헌

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