• bar fracture modeling in progressive collapse analysis of reinforced concrete structures

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 821
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     reliable evaluation of progressive collapse resistance of structures requires substantiated methods and techniques for analyzing the response of critical elements subjected to large deformations. steel bar fracture is a significant event that can lead to progressive collapse of reinforced concrete (rc) structures. given the sudden discontinuity associated with bar fracture, modeling of such an event in a continuum domain analysis is challenging. in this paper a method is proposed for finite element modeling and analysis of rc elements that accounts for bar fracture. it is demonstrated that such a modeling technique is capable of developing catenary action. analytical results based on the proposed method show good agreement with experimental data. the underlying cause for a drop in beam vertical resisting force following the peak force is identified and explained.

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