A study on structural behaviour of bubble deck slab using spherical and elliptical balls

Jasna Jamal, Jiji Jolly
International Research Journal of Engineering and Technology (IRJET)   unpublished
Concrete plays a major role in the construction field. In building construction slab is one of the largest and important structural member consuming concrete. Concrete slab use more concrete than requirement, hence has to be optimized. So reduce the concrete in center of the slab by using hollow recycled plastic balls. High density polyethylene (HDPE) hollow balls replace the ineffective concrete in the center of the slab, thus decreasing the dead weight and increasing the efficiency of the
more » ... ficiency of the floor. By introducing the gaps leads lighter slab which reduces the loads on the columns, walls, foundations and entire part of building. The advantages of the bubble deck slab are less energy consumption both in production, transport and less emission of exhaust gases, especially CO2.Finite element analysis (FEA) was carried out by using the FEA software ANSYS to study the structural behavior of bubble deck slab with spherical and elliptical balls. The bubble deck slabs with spherical and elliptical balls were subjected to uniformly distributed load with proper boundary conditions. The analysis was done on bubble deck slab using both M25 and M30 grade of concrete. Total deformation, Directional deformation and Equivalent stress (Von Mises stress) were studied. Then the results of bubble deck slab with spherical balls and elliptical balls were compared.