Static and Dynamic analysis of Grid Beams

Abstract

A grid is a planar structural system composed of continuous members that either intersect or cross each other .Grids are used to cover large column free areas and is subjected to loads applies normally to its plane . It is beneficial over normal beams as it has a better load dispersing mechanism and also this system reduces the normal span to depth ratio which helps in reducing the height of the building .Grid beams are analysed dynamically to determine the natural frequencies of the nodes of the system. Direct stiffness method for finding out the stiffness matrix and Mass matrix of the members of grid system. The lowest natural frequency will determine the minimum dynamic loading that the structure can withstand without resonance.