Investigation of the behavior factor of Reinforced Concrete Moment Frame with concrete Voided slab constructed by Spherical and Cubic Balls

Abstract

In order to prevent damage caused by earthquakes in different types of structures including concrete structures, various methods are used by structural engineers considering terms of design and working conditions. Simple slabs, bubble hollow slabs (Spherical) and Cubic hollow slabs may be used to meet the structural requirements and also to increase performance level of the structures against earthquakes. This research aimed to evaluate the performance of these structures in different conditions and evaluate their impact on the structural behaviour coefficient. For this purpose, ABAQUS finite element software has been utilized to model a concrete moment frame with one span in one floor equipped with simple concrete slab, Spherical and Cubic hollow slabs in different conditions. Then the required analysis has been performed to evaluate the behaviour of these different type slabs. Verification of the model is implemented According to the study of Leimam et al. Then, in different models, the coefficient of structural behaviour is calculated and studied. The results show that using Cubic and Spherical slab could increase the behaviour coefficient of concrete moment frame in comparison with simple slabs. In the case of concrete moment frame with Cubic and Spherical slab, behaviour coefficient increases 32.79% and 46.3% respectively.