Fibre optic measurements and model uncertainty quantification for Fe-SMA strengthened concrete structures

Anchorage behavior of Fe-SMA rebars Post-Installed into concrete

“…More recently, Czaderski et al [27] have used U-shaped ribbed Fe-SMA stirrups embedded in a shotcrete layer for improving the shear performance of deficient RC beams. The efficacy of prestressed Fe-SMA rebars in strengthening RC bridge decks has been illustrated in [28][29]. A few studies have also performed finite element modelling of RC beams and masonry walls strengthened with NSM Fe-SMA strips [30][31] and RC beams strengthened with Fe-SMA rebars embedded in a shotcrete layer [32].…”

Integrating near‐surface mounted SMA and externally bonded CFRP for concrete beams strengthened in flexure

“…A range of studies have been performed on the concrete structures involving the use of SMA reinforcement 22,28‐35 . The flexural behavior of concrete beams strengthened with Fe‐SMA ribbed bars, embedded in either an additionally applied shotcrete layer 22 or the cutting grooves in the superficial concrete, 28,32 was studied to examine the strengthening effectiveness.…”

“…A range of studies have been performed on the concrete structures involving the use of SMA reinforcement. 22,[28][29][30][31][32][33][34][35] The flexural behavior of concrete beams strengthened with Fe-SMA ribbed bars, embedded in either an additionally applied shotcrete layer 22 or the cutting grooves in the superficial concrete, 28,32 was studied to examine the strengthening effectiveness. The increase in the cracking and ultimate moment can be observed, and the strengthening efficiency depends on the amount of Fe-SMA reinforcement.…”

Eight-Year Natural Environmental Exposure and Sustained-Loading of Reinforced Concrete Beams with Iron-Based Shape Memory Alloys

“…To assess the applicability of existing analytical tools for both future behavior prediction and failure prognosis, a cross-section analysis based on [42] is employed, incorporating long-term material models specified in widely accepted guidelines. Moreover, a parameter study and subsequent sensitivity analysis, utilizing Sobol' Indices [43], are implemented to investigate the effects of various parameters on the structural response.…”