EFFECT OF SKEW ANGLE ON UPLIFT AND DEFLECTION OF RCC SKEW SLAB

Deepak C, Sabeena MV

Abstract: The study deals with the finite element modeling of simply supported skew slab with varying skew angles using ANSYS software. The behavior of the simply supported skew slab under point load applied at the centre depends on the ratio of short diagonal to its span. Skew slabs with ratio of short diagonal to span less than unity show lifting of acute corners whereas slabs with ratio of short diagonal to span greater than unity do not. Skew slab specimen with ratio of short diagonal to span less than unity is considered here for studying the effect of skew angle on the behavior of skew slab. The dimensions of skew slab were taken from available experimental data. In this paper skew angles varying from 0º to 30º were taken for the study. After the nonlinear finite element analysis of all skew slabs it is revealed that when skew angle increases the uplift at both the acute corners also increases. The result also suggests that the load carrying capacity increases with increase in skew angle.

Keywords: Reinforced concrete, Finite element analysis, Skew slab, Uplift

DOI: https://doi.org/10.15623/ijret.2015.0405020