Banca de DEFESA: RAUL MARCOS MARQUES COSTA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : RAUL MARCOS MARQUES COSTA
DATA : 28/11/2019
HORA: 14:30
LOCAL: Sala de reuniões do Departamento de Construção e Estrutura - EPUFBA
TÍTULO:

Theoretical study of the reinforcement sizing of concrete box girder bridges using carbon fiber reinforced polymer: case study of the Joseph Wagner Viaduct (BR-101 / BA)

PALAVRAS-CHAVES:

Viaducts. Concrete. Carbon fiber. Box girder.

PÁGINAS: 255
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Civil
SUBÁREA: Estruturas
ESPECIALIDADE: Estruturas de Concreto
RESUMO:

In this work, we have the study of reinforcement of webs of box girder bridges in prestressed concrete using carbon fiber reinforced polymer (CFRP). The objective of this work is to propose analytical criteria for the reinforcement of webs of box girder bridges in prestressed concrete using CFRP. The analytical criteria were developed based on the international standards ACI 440 (2017) and CEB-FIP, Bullentin 14 (2001), adapted to the requirements of the Brazilian standard NBR 6118 (2014) and to the sizing of box girder. To do this, carry out the case study of the Joseph Wagner Viaduct, designed in box girder and using TB-360 vehicle of Brazilian standard NB-6 (1960), and needs to be adapted to TB-450 vehicle of current standard, NBR 7188 (2013). For this case study, the National Department of Transport Infrastructure give the viaduct rehabilitation project, provided important information related to the geometry, material properties and steel area of some sections of the beam. For analysis of the increase of loads, the viaduct was modeled in finite elements, using the TB-360 and TB-450 vehicles. From the results, it was verified the need to reinforce the shear force, torsion and transverse flexion of the webs. For the beam section that required reinforcement, it was designed the reinforcement using the analytical criteria proposed in this dissertation. The developed criteria presented satisfactory results and indicated important points that should be taken into account in bridge rehabilitation projects and in reinforcement projects (longitudinal and transverse) of concrete beams using CFRP. At the end of the dissertation, recommendations and suggestions related to sizing, design and adaptations of the international normative requirements with the Brazilian standards are addressed.

MEMBROS DA BANCA:
Interno - 1675606 - ALEX ALVES BANDEIRA
Interno - 2181909 - MONICA CRISTINA CARDOSO DA GUARDA
Interno - 2199195 - TATIANA BITTENCOURT DUMET
Externo à Instituição - JOSÉ AFONSO PEREIRA VITÓRIO - UPE