Steel and Composite Structures

  • 제8권5호
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  • Pages.403-421
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  • 2008
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

An improved polynomial model for top -and seat- angle connection

  • Prabha, P. (Strucutural Engineering Research Centre, CSIR campus) ;
  • Marimuthu, V. (Strucutural Engineering Research Centre, CSIR campus) ;
  • Jayachandran, S. Arul (Strucutural Engineering Research Centre, CSIR campus) ;
  • Seetharaman, S. (Strucutural Engineering Research Centre, CSIR campus) ;
  • Raman, N. (Flour Daniel India Limited)
  • 투고 : 2007.09.11
  • 심사 : 2008.07.16
  • 발행 : 2008.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

The design provisions for semi-rigid steel frames have been incorporated in codes of practice for steel structures. In order to do the same, it is necessary to know the experimental moment-relative rotation (M-${\theta}_r$) behaviour of beam-to-column connections. In spite of numerous publications and collection of several connection databases, there is no unified approach for the semi-rigid design of steel frames. Amongst the many connection models available, the Frye-Morris polynomial model, with its limitations reported in the literature, is simple to adopt at least for the linear design space. However this model requires more number of connection tests and regression analyses to make it a realistic prediction model. In this paper, 3D nonlinear finite element (FE) analysis of beam-column connection specimens, carried out using ABAQUS software, for evaluating the M-${\theta}_r$ behaviour of semi-rigid top and seat-angle (TSA) bolted connections are described. The finite element model is validated against experimental behaviour of the same connection with regard to their moment-rotation behaviour, stress distribution and mode of failure of the connections. The calibrated FE model is used to evaluate the performance of the Frye-Morris polynomial model. The results of the numerical parametric studies carried out using the validated FE model have been used in proposing modifications to the Frye-Morris model for TSA connection in terms of the powers of the size parameters.

키워드

참고문헌

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피인용 문헌

  1. Numerical Estimation for Initial Stiffness and Ultimate Moment of Top-Seat Angle Connections without Web Angle vol.143, pp.10, 2017, https://doi.org/10.1061/(ASCE)ST.1943-541X.0001875
  2. Optimum design of geometrically non-linear steel frames with semi-rigid connections using a harmony search algorithm vol.9, pp.6, 2009, https://doi.org/10.12989/scs.2009.9.6.535
  3. Modified Frye–Morris polynomial model for double web-angle connections vol.7, pp.3, 2015, https://doi.org/10.1007/s40091-015-0100-y
  4. Moment-Rotation Model for Blind-Bolted Flush End-Plate Connections in Composite Frame Structures vol.141, pp.9, 2015, https://doi.org/10.1061/(ASCE)ST.1943-541X.0001147
  5. Nonlinear P-Δ analysis of steel frames with semi-rigid connections vol.14, pp.1, 2008, https://doi.org/10.12989/scs.2013.14.1.001