Computers and Concrete

  • 제7권3호
  • /
  • Pages.203-220
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  • 2010
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Numerical analysis of under-designed reinforced concrete beam-column joints under cyclic loading

  • Sasmal, Saptarshi (Institute for Lightweight Structures and Conceptual Design (ILEK), Universitaet Stuttgart, Germany and Scientist, Structural Engineering Research Centre (SERC), Council for Scientific and Industrial Research (CSIR)) ;
  • Novak, Balthasar (Institute for Lightweight Structures and Conceptual Design (ILEK), Universitaet Stuttgart) ;
  • Ramanjaneyulu, K. (Structural Engineering Research Centre (SERC), CSIR)
  • 투고 : 2009.09.14
  • 심사 : 2010.03.10
  • 발행 : 2010.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

In the present study, exterior beam-column sub-assemblage from a regular reinforced concrete (RC) building has been considered. Two different types of beam-column sub-assemblages from existing RC building have been considered, i.e., gravity load designed ('GLD'), and seismically designed but without any ductile detailing ('NonDuctile'). Hence, both the cases represent the under-designed structure at different time frame span before the introduction of ductile detailing. For designing 'NonDuctile' structure, Eurocode and Indian Standard were considered. Non-linear finite element (FE) program has been employed for analysing the sub-assemblages under cyclic loading. FE models were developed using quadratic concrete brick elements with embedded truss elements to represent reinforcements. It has been found that the results obtained from the numerical analysis are well corroborated with that of experimental results. Using the validated numerical models, it was proposed to correlate the energy dissipation from numerical analysis to that from experimental analysis. Numerical models would be helpful in practice to evaluate the seismic performance of the critical sub-assemblages prior to design decisions. Further, using the numerical studies, performance of the sub-assemblages with variation of axial load ratios (ratio is defined by applied axial load divided by axial strength) has been studied since many researchers have brought out inconsistent observations on role of axial load in changing strength and energy dissipation under cyclic load.

키워드

참고문헌

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  5. Numerical simulation of performance of near-surface mounted FRP-upgraded beam–column sub-assemblages under cyclic loading vol.11, pp.8, 2015, https://doi.org/10.1080/15732479.2014.926376
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  7. Considering the size and strength of beam-column joints in the design of RC frames vol.16, pp.2, 2015, https://doi.org/10.1002/suco.201400054
  8. Analytical and experimental investigations on seismic performance of exterior beam-column subassemblages of existing RC-framed building vol.42, pp.12, 2013, https://doi.org/10.1002/eqe.2298
  9. Upgradation of gravity load designed sub-assemblages subjected to seismic type loading vol.93, pp.6, 2011, https://doi.org/10.1016/j.compstruct.2011.01.001
  10. Numerical analysis of fiber composite-steel plate upgraded beam–column sub-assemblages under cyclic loading vol.93, pp.2, 2011, https://doi.org/10.1016/j.compstruct.2010.08.019
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  13. Seismic performance of non-invasive single brace made of steel and shape memory alloy for retrofit of gravity load designed sub-assemblages vol.143, 2017, https://doi.org/10.1016/j.engstruct.2017.04.024
  14. Structural performance of steel-truss-reinforced composite joints under cyclic loading vol.171, pp.2, 2018, https://doi.org/10.1680/jstbu.16.00188
  15. Numerical model to simulate shear behaviour of RC joints and columns vol.18, pp.4, 2010, https://doi.org/10.12989/cac.2016.18.4.877
  16. Cyclic response analysis of high-strength self-compacting concrete beam-column joints vol.51, pp.1, 2010, https://doi.org/10.5459/bnzsee.51.1.23-33
  17. Seismic Performances of SRC Special-Shaped Columns and RC Beam Joints Under Double-Direction Low-Cyclic Reversed Loading vol.8, pp.None, 2010, https://doi.org/10.3389/fmats.2021.761376
  18. Nonseismic and seismic designed beam-column joints with rebar end anchors - Behaviour under reverse cyclic loading vol.25, pp.14, 2010, https://doi.org/10.1080/13632469.2019.1657990