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DINAME2019
DINAME2019
Behavior of Ultra High Performance Fiber Reinforced Concrete (UHPFRC) under seismic loads
Submission Author:
Rúbia Bosse , SP
Co-Authors:
Rúbia Bosse, Gustavo de Miranda Saleme Gidrão, Andre Beck, Ricardo Carrazedo
Presenter: Rúbia Bosse
doi://10.26678/ABCM.DINAME2019.DIN2019-0186
Abstract
Ultra-high performance fiber-reinforced concrete (UHPFRC) is a new material with unique mechanical properties as well as high ductility and toughness which makes it a promising material for use in earthquake-resistant structures. This paper addresses the response of a 4-storey frame model with solid finite elements method and composed by reinforced concrete subjected to the El Centro earthquake ground displacements. The dynamical response of the structure of UHPFRC is compared to the response of the same structure made by a conventional high strength concrete. The mechanical model describes physical nonlinear behavior with damage and plasticity showing the regions of cracking propagation. UHPFRC presented smaller levels of damage in all time instants and higher equals displacements for floors compared with the response of the conventional high strength concrete. The material showed ductile behavior and capacity to inhibit the crack propagation.
Keywords
Ultra-high performance fiber-reinforced concrete (UHPFRC), Earthquake, Concrete damage plasticity, Finite Elements, Damage evolution
