Numerical Study of the effectiveness of post-seismic structural repairs on reinforced concrete portal frames

This paper presents a numerical study of the effectiveness of post-seismic repair procedures on Reinforced Concrete (RC) portal frames. Seismic occurrences often compromise the structural integrity of reinforced concrete frames, leading to significant damage and even collapse. The usefulness of post-seismic repair techniques for Reinforced Concrete (RC) portal frames is examined numerically in this research. The structural integrity of reinforced concrete frames is frequently compromised by seismic occurrences, which can result in considerable damage or even collapse. Post-seismic repairs vary in efficacy depending on the kind and degree of the damage, but they are required to restore structural function. In order to mimic seismic damage and the selection of repair techniques, such as increasing the section, an inertia reduction of the structure element was employed in this work. Commercial software was utilized to perform the numerical computations. To measure the improvements in structural behaviour, the results are compared with pre-damaged and unreinforced structures. The findings provide valuable insights into the best repair techniques, demonstrating that although some methods only marginally improve RC portal frame robustness, others significantly do so. This research contributes to the development of effective post-seismic repair methods by increasing structural safety and prolonging the service life of damaged reinforced concrete structures.