Banca de QUALIFICAÇÃO: Felipe Carvalho Silva Santos

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : Felipe Carvalho Silva Santos
DATA : 04/07/2017
HORA: 16:00
LOCAL: Centro Federal de Educação Tecnológica de Minas Gerais
TÍTULO:

ANÁLISE MODAL DO VIADUTO DA MONTESE: CALIBRAÇÃO DE UM MODELO EM ELEMENTOS
FINITOS E COMPARAÇÃO COM PROVA DE CARGA ESTÁTICA

PALAVRAS-CHAVES:

Operational Modal Analysis; Bridge; Finite Element Model Calibration; Static Load Test.

PÁGINAS: 41
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Civil
SUBÁREA: Estruturas
ESPECIALIDADE: Mecânica das Estruturas
RESUMO:

Operational Modal Analysis is a methodology widely used in order to identify structural modal parameters without interrupting its use. In civil structures, this methodology is used along with a finite element model, which allows structural health monitoring, and damage detection besides of determination of how existent pathology affects structural functioning.

In the present work, the Montese Avenue’s viaduct Operational modal analysis is presented. Acceleration was measured in 16 points over superstructure in 3 orthogonal directions in a 50Hz sampling rate resulting in a 40 hours of measured data. It was employed SSI-COV algorithm in order to identify structure’s natural frequencies. A finite element model of the structure was developed to be calibrated with the frequencies resultants of the modal analysis. This model is going to be tested with a simulation of a static load test, which was performed in the viaduct before traffic liberation.

Preliminarily natural frequencies obtained in modal analysis was compared with the initial (without calibration) computational model ones. Error rate was relatively low. We aim conclude model’s calibration until encounter an error rate inferior to 5% guaranteeing that static load test simulation returns the same results as the real test confirming and validating the model as a representation of the real structure.

MEMBROS DA BANCA:
Presidente - CLAUDIO JOSE MARTINS
Interno - ELIENE PIRES CARVALHO
Interno - RENATA GOMES LANNA DA SILVA