Dynamic Behaviour of Grid Pattern on Concrete Floors

In the present study, an attempt is made to compare the base reactions, bending moment and shear force obtained from the dynamic analysis using STAAD Pro software for various grid patterns. The size of grid patterns are 18mx18m and four basic grid patterns are selected which are varied by increasing the intermediate beams. It is important to note that the grids are analyzed for G+3 building. IS 1893:2002 is referred to apply dynamic loading on the grids and Equivalent static analysis (ESA) or seismic coefficient method (SCM) is followed to apply the dynamic loading on the grids. The main aim of the study is to compare the above mentioned results obtained from the dynamic analysis of various grid patterns and study the behavior of various grids under dynamic loading. It is important to note that the comparison of results is studied for the various load combinations specified in IS 1893:2002. The study also evaluates the storey shear for various grid patterns.