TY - JOUR ID - TI - Time-dependent Numerical Modeling of Plain Concrete Columns Wrapped by FRP Sheets AU - A. S Mahmoud AU - Z. T Salih PY - 2018 VL - 9 IS - 1 SP - 267 EP - 280 JO - Anbar Journal of Engineering Sciences مجلة الأنبار للعلوم الهندسية SN - 19979428 27067440 AB - The demand for strengthening structures becomes necessary when an increase in load is inevitable. For instance very little information is available on the time-dependent behaviour of strengthened concrete columns. Also, this is a primary factor hindering the widespread uses of FRP strengthening technologies in the construction implementations. This paper investigates the behaviour of strengthened concrete columns with FRP sheets subjected to long-term loading by non linear finite element analysis using ANSYS computer package. A three-dimensional finite element model has been used in this investigation. This study achieved a good agreement between numerical and experimental results, it was found that the percentage of error of specimens do not pass (5%) for creep strain. In addition, a parametric study was performed to study the effect of different factors on the behaviour of FRP strengthened concrete columns.

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