Time-dependent numerical modeling of plain concrete columns wrapped by frp sheets

Abstract EN

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.