Simplified Calculation Method for Deflection of Concrete Cellular Slab

The continuity of concrete cellular slab was damaged by tubular hollow tubes which are arranged in slabs in parallel and the mechanical properties of slab exists anisotropy leading by different shapes of cross section in both directions of parallel and vertical to hollow tubes. Slab stiffness is weak greatly in direction of parallel to hollow tubes. For concrete cellular slab, the mechanical and deformation properties have been studied, the rigidity and stiffness ratio formula in both directions are been given. Orthotropic slab analogue method that is simplified calculation method for slab deflections are put out. The calculated results show that this method is adaptable and processes are simple. The calculated results are close to with engineering practices.