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Nonlinear Finite Element Method Analysis of after Fire Reinforced Concrete Beam Strengthened with Carbon Fiber Strip
Juliafad E.a,b, Ananda R.b, Sulistyo D.c, Suhendro B.c, Hidayat R.d
a Department of Civil Engineering, University of Tokyo, Tokyo, Japan
b Department of Civil Engineering, State Univerity of Padang, Padang, Indonesia
c Department of Civil Engineering and Environment, Gadjah Mada University, Yogyakarta, Indonesia
d Department of Civil Engineering, Bandung Institute of Technology, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© Published under licence by IOP Publishing Ltd.Concrete which is exposed to high temperature will experience strength degradation. This research obtained nonlinear Finite Element numerical model for Reinforced Concrete (RC) Beam after-fire and then strengthened with Carbon Fiber Strip on the flexural area. RC beam before the fire (NB), after fire (AFB) and strengthened after (CAFB) FEM model were compared with the actual experimental results. Using ATENA v.2.1.10 and GID as Pre-Processor, the crack patterns of the numerical model showed a good agreement with experimental results. Loading and displacement relationship also showed the same behavior. Stress and strain relationship of each RC beam also has been observed for each loading step. S-Beta element utilized on ATENA v.2.1.10 gave the excellent results on nonlinearity material behavior, especially for model NB and AFB. The value of stiffness obtained for AFB and CAFB in the experiment was higher than the sample from the numeric result namely 64% and 45%, while the ductility value obtained from the experiment was also smaller about 41%, and 17% in comparison to its numerical.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Crack patterns,High temperature,Material behavior,Non-linear finite elements,Nonlinear finite element method analysis,Reinforced concrete beams,Strength degradation,Stress and strain[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]The authors gratefully acknowledge the contribution of the Gadjah Mada University Research Fund.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1088/1742-6596/1175/1/012019[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]