Influence of Foundation Settlements in Load Redistribution on Columns in a Monitoring Construction – Case Study

Resumo

The objective of this article is to present the results obtained in a study on the interaction between the behavior of the structure and the foundation settlements and verify the influence of normal load distribution on the columns. In this mechanism, known as structure soil interaction (SSI), as the building is constructed, a transfer of loads occurs from the columns which tend to settle more to those that tend to settle less. The study was conducted in a building which had its settlements monitored from the beginning of construction. For this purpose, a linear tridimensional numerical model was constructed and numerical analysis was performed, using the finite elements method. In these analyses, numerical models corresponding to the execution of each floor were used, considering the settlements measured in each stage of the construction. The results of analyses showed that the effect of SSI are significant for calculating the normal efforts on the columns, particularly on those located in the first floors.