The paper presents a numerical study aiming at establish the effects of removing the lateral ground connection between embedded shallow foundations and surrounding soil on dynamic soil-structure interaction. Series of two-dimensional finite element models were developed comparing the behaviour of two identical structures with just one difference: the embedment of their own foundations. In order to find the parameters that most influenced the effect of the lateral disconnection technique, the properties of the two structures (predominant period, aspect ratio, loading bearing, foundation embedment) as well as the ones of the soil were parametrically varied. From the results gathered in here, it was established the effectiveness of the proposed system to reduce the inter-story drifts demand on the structures and increase their predominant periods specially in case of high value of foundation embedment in a medium dense soil.
Numerical analysis on shallow foundations lateral disconnection / Somma, F.; Flora, A.; Bilotta, E.; Viggiani, G.. - 2021-:(2021). (Intervento presentato al convegno 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2021 tenutosi a grc nel 2021).
Numerical analysis on shallow foundations lateral disconnection
Somma F.;Flora A.;Bilotta E.;
2021
Abstract
The paper presents a numerical study aiming at establish the effects of removing the lateral ground connection between embedded shallow foundations and surrounding soil on dynamic soil-structure interaction. Series of two-dimensional finite element models were developed comparing the behaviour of two identical structures with just one difference: the embedment of their own foundations. In order to find the parameters that most influenced the effect of the lateral disconnection technique, the properties of the two structures (predominant period, aspect ratio, loading bearing, foundation embedment) as well as the ones of the soil were parametrically varied. From the results gathered in here, it was established the effectiveness of the proposed system to reduce the inter-story drifts demand on the structures and increase their predominant periods specially in case of high value of foundation embedment in a medium dense soil.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
