Analysis of the Effects of Soil-Structure Interaction on the Internal Forces of the Superstructure and Substructure in Framed Buildings

Authors

DOI:

https://doi.org/10.70567/mc.v42.ocsid8384

Keywords:

Soil-structure interaction (ISE), Fixed Support, Equivalent Springs, Stiffness, Deep Foundations

Abstract

A numerical comparative analysis of the effects of soil-structure interaction (SSI) on internal forces was carried out on a reinforced concrete frame structure, symmetric and regular in both plan and elevation. The models were developed using software based on the Finite Element Method (FEM). Four case studies were evaluated, combining two factors: building height (15 m and 135 m) and low-stiffness soil type. The floor height (3 m), plan configuration, and use of piles for the foundations were kept constant. Structural forces were compared considering both fixed-base and equivalent spring foundation models. The results showed variations in tensile stresses on the edge beams under permanent loads, indicating possible structural underdesign.

References

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Published

2025-11-28

Issue

Vol. 42 No. 2 (2025): Structural Analysis

Section

Conference Papers in MECOM 2025

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Copyright (c) 2025 Argentine Association for Computational Mechanics

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