Authors : Iman Bahrami Chegeni and Ahmad Dalvand
Abstract: The shear behavior of reinforced concrete deep beams is one of the most influential factors on the total behavior of the structure. The arrangement of stirrups in concrete members, especially in beams has a considerable effect on ductility and hysteresis behavior of the structure. The shear behavior plays a great role in gravity loads of the structure and its failure mechanism. Due to their different behavior in compare to flexural members, studying the cracking pattern in concrete deep beams seems necessary. In this study the cracking pattern of concrete deep beams with web openings is considered. To do this, finite element models of six concrete deep beams with web openings and without shear reinforcement were built by ANSYS Software and verified using experimental results. The modeled beams had the same properties, except for the size and place of the opening. The analysis results showed that both shear capacity and stiffness reduced by the increase in the opening area. Collapse of the concrete beam was due to expansion of cracks on corners of the opening, parallel to compression member of truss.
Iman Bahrami Chegeni and Ahmad Dalvand, 2016. Finite Element Study of Reinforced Concrete Deep Beams with Rectangular Web Openings. Journal of Engineering and Applied Sciences, 11: 3167-3176.