INCREMENTAL ANALYSIS OF TALL BUILDING FRAMES ON REINFORCED CONCRETE

Abstract

Modern buildings are becoming taller and lighter. Studies and analyses closer to reality appear necessary. To analyse multi-storey structures, where are taken into account the stages of construction and loading, it is said that the calculation is evolutionary. The aim of this work is to study the stresses caused by two different structural analysis to evaluate the differences between the classical and the incremental calculations. It was used computer analysis to compare both models, the incremental model with the conventional model. In the incremental model, analysis of the loads were gradually applied taking into consideration the construction stages, vertical and horizontal loads. The conventional analysis assumed the whole loading acting simultaneously on the structure after its ending. Comparing the test results discrepancies could be determined between both methods, making clear the importance of incremental model in the development of structural designs to ensure greater security for reinforced concrete of tall building structures. Keywords: sequential analysis, stages of loading, frames, tall buildings; structural systems.