ANALYSIS OF GRID FLOOR AND ITS PARAMTRIC STUDY

The main concern of this 21st century’s architects & designers is the utility of free column space for big halls, auditorium & theaters for live shows in T.V. programs, shopping malls & vehicle parking area. Recent market demands large column free space with good aesthetics with beautiful lightening with better illumination & good acoustics for assembling in various occasions, as compared to conventional structural arrangement like beam-column or flat slab construction obstructing clear views of the object. The Grid floor system consists of beams spaced at regular interval in perpendicular / orthogonal directions with monolithic slab construction. The present work is a small contribution towards the economical arrangement by varying the effect of grid size with simply supported case, a central column & multiple column arrangement with consequent effect on the stress parameters such as bending moment, twisting moment, shear force & deflection at critical points in the grid floors. The analysis is done by using the plate theory as given in S.P. Timoshenko and Krieger textbook by considering an isotropic plate freely supported by four sides.The project incorporates the manual methods for the analysis however the exact method of analysis is stiffness matrix method with readymade computer programs but the point to point values of stress parameters and graphical representation of deflection is done more efficiently by manual method as compared to computer based analysis .