Effect of loading history on axial cyclic behaviour of RC prisms representing wall boundary zones

Susceptibility of flexure-dominated reinforced concrete walls to premature compression failure modes (global lateral instability, local rebar buckling, etc.) was exposed during the recent past earthquake events in Chile and New Zealand. Numerous experimental studies have been conducted since then on isolated columns representing wall boundary zones study critical parameters influencing these modes. However, a specific including effect different loading histories, particularly terms cycle content (strain range corresponding count), is missing literature. In this study, uniaxial cyclic tests were performed six doubly prisms idealised as elements rectangular evaluate various histories The applied specimens included conventional protocol (obtained directly from test prototype wall) well two comprising representative demand expected near-fault far-fault earthquakes. some tests, level compressive strains adopted reduced their impact Although results re-affirmed influence imposed tensile strain global instability buckling phenomena, variation number amplitude cycles history also displayed. Furthermore, not only highlighted out-of-plane response but revealed detrimental effects low-cycle fatigue life specimens.