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Structural Performance of Laterally Loaded RCC Frames Containing Steel Fibre Concrete Within Plastic Hinge Zones
https://orcid.org/http://orcid.org/0000-0002-4561-794X
Replacement of conventional concrete with a ductile composite material at the plastic hinge location in the RCC frames is a way to improve the ductility of framed structures. Steel fiber concrete is one of the composite materials to exhibit improved ductility. This study aims to numerically investigate the impact of substituting the normal concrete with steel fiber concrete at the probable plastic hinge locations in beams and columns of a framed structure. To this end of the study, a single-way two-storey RCC frame is considered, and plastic hinge locations are considered at mid-span and mid-height of beam and column, respectively; and the length of the plastic zone at these locations are determined using the findings of the previous studies. The concrete used at plastic hinge locations is considered to have different percentages of steel fibre ranging from 0.5 to 2.0% at an interval of 0.5%, and the mechanical properties for these fibrous concretes have been acquired from the published literature. The commercially available software ABAQUS is used to perform the non-linear finite element analysis of frames subjected to monotonic lateral load and seismic loading. The reinforcement in the frame is modelled using the 3-D truss elements, and the Concrete Damage Plasticity (CDP) model is used to model the concrete for capturing the damage due to concrete cracking and crushing. The study shows that replacing normal concrete with steel fiber reinforced concrete at the plastic locations improves the static load carrying capacity of the frame and gain in load carrying capacity rises with the increase in the percentage of fibre; on the other hand, it causes a reduction in von-Mises stresses under the seismic loading.
Structural Performance of Laterally Loaded RCC Frames Containing Steel Fibre Concrete Within Plastic Hinge Zones
https://orcid.org/http://orcid.org/0000-0002-4561-794X
Replacement of conventional concrete with a ductile composite material at the plastic hinge location in the RCC frames is a way to improve the ductility of framed structures. Steel fiber concrete is one of the composite materials to exhibit improved ductility. This study aims to numerically investigate the impact of substituting the normal concrete with steel fiber concrete at the probable plastic hinge locations in beams and columns of a framed structure. To this end of the study, a single-way two-storey RCC frame is considered, and plastic hinge locations are considered at mid-span and mid-height of beam and column, respectively; and the length of the plastic zone at these locations are determined using the findings of the previous studies. The concrete used at plastic hinge locations is considered to have different percentages of steel fibre ranging from 0.5 to 2.0% at an interval of 0.5%, and the mechanical properties for these fibrous concretes have been acquired from the published literature. The commercially available software ABAQUS is used to perform the non-linear finite element analysis of frames subjected to monotonic lateral load and seismic loading. The reinforcement in the frame is modelled using the 3-D truss elements, and the Concrete Damage Plasticity (CDP) model is used to model the concrete for capturing the damage due to concrete cracking and crushing. The study shows that replacing normal concrete with steel fiber reinforced concrete at the plastic locations improves the static load carrying capacity of the frame and gain in load carrying capacity rises with the increase in the percentage of fibre; on the other hand, it causes a reduction in von-Mises stresses under the seismic loading.
Structural Performance of Laterally Loaded RCC Frames Containing Steel Fibre Concrete Within Plastic Hinge Zones
https://orcid.org/http://orcid.org/0000-0002-4561-794X
Replacement of conventional concrete with a ductile composite material at the plastic hinge location in the RCC frames is a way to improve the ductility of framed structures. Steel fiber concrete is one of the composite materials to exhibit improved ductility. This study aims to numerically investigate the impact of substituting the normal concrete with steel fiber concrete at the probable plastic hinge locations in beams and columns of a framed structure. To this end of the study, a single-way two-storey RCC frame is considered, and plastic hinge locations are considered at mid-span and mid-height of beam and column, respectively; and the length of the plastic zone at these locations are determined using the findings of the previous studies. The concrete used at plastic hinge locations is considered to have different percentages of steel fibre ranging from 0.5 to 2.0% at an interval of 0.5%, and the mechanical properties for these fibrous concretes have been acquired from the published literature. The commercially available software ABAQUS is used to perform the non-linear finite element analysis of frames subjected to monotonic lateral load and seismic loading. The reinforcement in the frame is modelled using the 3-D truss elements, and the Concrete Damage Plasticity (CDP) model is used to model the concrete for capturing the damage due to concrete cracking and crushing. The study shows that replacing normal concrete with steel fiber reinforced concrete at the plastic locations improves the static load carrying capacity of the frame and gain in load carrying capacity rises with the increase in the percentage of fibre; on the other hand, it causes a reduction in von-Mises stresses under the seismic loading.
Structural Performance of Laterally Loaded RCC Frames Containing Steel Fibre Concrete Within Plastic Hinge Zones
Lecture Notes in Civil Engineering
Goel, Manmohan Dass (editor) / Biswas, Rahul (editor) / Dhanvijay, Sonal (editor) / Kumar, Manoj (author) / Madhu, Rahul (author)
Structural Engineering Convention ; 2023 ; Nagpur, India
2024-11-13
9 pages
Article/Chapter (Book)
Electronic Resource
English
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