Modelação do comportamento de pavimentos térreos industriais submetidos a cargas elevadas

Mário Anderson dos Santos Gomes

Key information

Authors:

Mário Anderson dos Santos Gomes (Mário Anderson dos Santos Gomes)

Supervisors:

Luís Manuel Coelho Guerreiro (Luís Manuel Coelho Guerreiro); José Manuel Coelho das Neves (José Manuel Coelho das Neves)

Published in

May 28, 2024

Abstract

Industrial ground floors have an interaction with the base that is of great importance in their structural performance, in addition to the influence of their intrinsic characteristics, such as their stiffness, and the applied loads, which are normally quite high. The foundation soil behavior model most used in the design of this type of industrial flooring is the “Winkler” model. This model consists of assuming in a simplified way that the foundation is a semi-infinite medium with elastic behavior, with the deformation being directly proportional to the applied load through understanding the modulus of occurrence of the soil. In this way, the soil's modulus of occurrence is equivalent to a spring that seeks to translate in a simple way the fragile nature of the foundation ground. This same model is widely used in the analysis of other structures with great interaction with the terrain. The main objective of the work developed was to better understand the influence of the foundation on the structural behavior of industrial ground floors with high applied loads. Through finite element modeling of the case study, using the SAP 2000 program, we intend to study the influence of the foundation on the behavior of this type of pavement. A parametric study was developed in an example that made it possible to highlight the influence of the geotechnical characteristics of the foundation soil on the behavior of the pavement, as well as the intensity of the loads applied for different loading conditions and geometries.