• practical nonlinear analysis of steel–concrete composite frames using fiber–hinge method

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1394/01/01
    • تاریخ انتشار در تی پی بین: 1394/01/01
    • تعداد بازدید: 520
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a fiber–hinge beam–column element considering geometric and material nonlinearities is proposed for modeling steel–concrete composite structures. the second-order effects are taken into account in deriving the formulation of the element by the use of the stability functions. to simulate the inelastic behavior based on the concentrated plasticity approximation, the proposed element is divided into two end fiber–hinge segments and an interior elastic segment. the static condensation method is applied so that the element comprising of three segments is treated as one general element with twelve degrees of freedom. the mid-length cross-section of the end fiber segment is divided into many fibers of which the uniaxial material stress–strain relationship is monitored during analysis process. the proposed procedure is verified for accuracy and efficiency through comparisons to the results obtained by the abaqus structural analysis program and established results available from the literature and tests through a variety of numerical examples. the proposed procedure proves to be a reliable and efficient tool for daily use in engineering design of steel and steel–concrete composite structures.

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