Banca de QUALIFICAÇÃO: CAMILA ALINE AGUIAR ALMEIDA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : CAMILA ALINE AGUIAR ALMEIDA
DATE: 11/12/2020
TIME: 10:00
LOCAL: on line
TITLE:

ANALYSIS OF THE EFFECT OF SOIL-STRUCTURE INTERACTION ON SPATIAL STEEL FRAMES IN SHALLOW AREAS FOUNDATIONS 

KEY WORDS:

soil-structure interaction (SSI), settlement, superficial foundation, spacial steel frames

PAGES: 57
BIG AREA: Engenharias
AREA: Engenharia Civil
SUBÁREA: Estruturas
SPECIALTY: Estruturas Metálicas
SUMMARY:

In structural designs, the hypothesis of theoretical supports is commonly used due to its simplicity. However, disregarding the flexibility of the foundation can lead to internal forces and structure displacements that do not represent the actual system response. With the aid of software, it is possible to perform more complex analyzes, which take into account the soil-structure interaction (SSI). In this context, the present study will investigate the influence of soil-structure interaction on the behavior of multi-storey buildings in comparison with theoretical supports, in order to evaluate possible implications in the design of structures. For this purpose, the influence of soil deformability on the structural behavior of three-dimensional steel frames with foundations in footing foundations will be analyzed, considering the elastic analysis in second order theory using the P-delta method, in the SAP 2000 software. The structural models correspond to buildings with 4, 7 and 11 floors with spans of 7m on clay silt soil. It is expected to conclude that the variation of the internal forces in the models that take into account the ISE will not be linear, that is, there will be a redistribution of efforts that will need to be analyzed. Regarding the comparison of the steel frames with different heights, it is expected that the greatest percentage differences in the internal forces will be presented in the highest frames, and these should occur on the first floor. Finally, when considering a rigid diaphragm as a way to contemplate the contribution of slab stiffness, it is expected that the influence of the SSI is minimized, thus reducing the difference found in relation to models with theoretical supports.

BANKING MEMBERS:
Presidente - RENATA GOMES LANNA DA SILVA
Interno - PETER LUDVIG
Externo à Instituição - ROBERTO MARCIO DA SILVA - UFMG