Banca de DEFESA: DAYENE CARDOSO DE SIQUEIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : DAYENE CARDOSO DE SIQUEIRA
DATA : 14/08/2019
HORA: 14:00
LOCAL: Prédio 18
TÍTULO:

Second-order Analysis in Plane Steel Frames Considering Theoretical Supports and the Soil-Structure Interaction

PALAVRAS-CHAVES:

Second order analysis, Plane Steel Frames, Soil-Structure Interaction (ISE)

PÁGINAS: 160
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Civil
SUBÁREA: Estruturas
ESPECIALIDADE: Estruturas Metálicas
RESUMO:

Traditionally, in structural analysis the hypothesis of indeslocables is used because of its simplicity. However, the conventional design in which the supports work independently of the response of the soil deformability to the loads transmitted by the foundation can lead to physical results incompatible with reality. With the development of microcomputers and computer programs, it is possible to carry out more realistic analyzes, which take into account the deformability of the soil next to the foundations. The main objectives of the present work are to analyze the influence of the consideration of soil-structure interaction (ISE) on the elements of steel structures when analyzing geometric non-linearity and to evaluate the difference between the types of soil survey methods in the analysis, which can be considered by the substitution of the ground by elastic supports, also known as springs or by the modeling of a continuous medium in finite elements. The spring models adopted are based on the Winkler and Pasternak theories and considering the Continuous Spring Mesh. The analyzes are performed with the help of SAP2000 commercial software. Modeling of flat porticoes considering conventional supports and models that take into account soil-structure interaction are addressed. It is made the analysis of three porches with the same characteristics, but with the number of different pavements showing the influence of the height increase and rigidity of the building in the ISE results. It is demonstrated that the consideration of the effects of soil-structure interaction on the structural analysis of buildings can have a significant influence on the distribution of the requesting forces, the displacements and the behavior of the structure, so that the resistant capacity of a structural system can be affected by type of support adopted and, varying the type of modeling for the consideration of the soil deformation, that is, the use of more simplified models in comparison with more elaborated models, also alter the results of the structural analysis.

MEMBROS DA BANCA:
Presidente - RENATA GOMES LANNA DA SILVA
Interno - CLAUDIO JOSE MARTINS
Externo ao Programa - THIAGO BOMJARDIM PORTO
Externo ao Programa - THIAGO LUIZ COELHO MORANDINI
Externo à Instituição - ROBERTO MARCIO DA SILVA - UFMG