“P-DELTA ANALYSIS AND COMPARISON OF STEEL STRUCTURE FOR DIFFERENT BRACING SYSTEM”
Keywords:
Steel structure, Design, Modelling, Review, P-deltaAbstract
During analysis of a building structure, normally after complete modelling full loads are applied on
entire building frame and linear static analysis is done. But in actual practice the dead load due to each structural
element is applied in various construction stages of each story of the building structure due to the material nonlinearity behaviour. The loads considered in linear static analysis change in transitory situation and hence the
outcomes will not be suitable and satisfactory.
Therefore the building structure should be analysed at every stage of construction taking into account the load
variations. A tall building is defined as one in which the structural system is adopted such that to make it sufficiently
economical and also to resist lateral forces due to wind or earthquakes within the prescribed criteria for strength, drift
and comfort of the occupants.