Arch action in reinforced concrete subjected to shear

Reinforced concrete elements without transverse reinforcement are vulnerable to shear failure. This premature failure mode prevents structures from developing their full flexural load bearing capacity. It is brittle in nature and occurs with the unstable propagation of cracks limited preventive signs distress. Moreover, associated resistance difficult predict accuracy. uncertainty can lead safety risks or inefficient structures. In this research, a novel approach was adopted study fundamental behaviour reinforced subjected enhance performance. Innovative specimen geometries advanced monitoring techniques were used investigate interaction between internal resisting mechanisms on specimens span-to-depth ratio 2.5 longitudinal below 1.3%. Novel configurations developed through targeted removal material, single multiple voids denoted respectively Void Truss. The enhanced by isolating arch action increasing efficiency inclined struts. Contrary common beliefs, it shown that material reduction redundancy net increase overall ductility Compared prismatic reference beams, Truss increased +53% +122% displacements at ultimate loads 4 6 times greater. isolation preferential load-path allowed for greater assurance control mechanism. Consequently, due critical crack avoided, inducing ductile yielding steel. Engaging inherent plasticity system led ductility. These conditions more reliable consistent loads. finding design assessment approaches, development safer efficient