Bearing Capacity of Corroded RC Columns

Abstract

This paper reviews previous studies carried out to investigate the behavior of Corroded RC columns. Current tests used to assess the effects of reinforcement corrosion on the serviceability of RC Columns in the absence of a sustained load were first surmised. Then, analytical and numerical models developed and calibrated with the experimental results to predict the bearing capacity of corroded RC columns were outlined. Furthermore, a critical discussion on loading systems previously used to corrode RC columns is provided. The work reported here highlights the weakness of tests aimed at assessing the behavior of columns in which the corrosion of the steel and the application of the service loads are undertaken as two separate and sequential processes. It also highlights the need to perform corrosion tests on laboratory specimens while they are under a simultaneous sustained load so as to better understand the behavior of corroding in-service columns.