The calculation methods are computer assisted through the use of the software, ETAB/SAP2000. One of the problems is affected from wind load. There have been so many cases in which the structures failed due to instability which require P-Delta analysis. Buildings and structures are consider stable with lateral supports by using either bracing systems or shear system or both such as wall to ensure the stability of the building. The method used for stability analysis of columns, shear walls, coupled and coupled components, cores, single storey and multi storey structures are studying. The building with discontinuity in the stiffness and mass subjected to concentration of forces and deformations at the point of discontinuity which may leads to failures of members at the junction and collapse of building. RC frame building with open ground storey, and similar soft storey effect can be observed when soft storey at different levels of structure are constructed.
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