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A platform for research: civil engineering, architecture and urbanism
Experimental and numerical evaluations of local buckling in thin-walled UHPFRC flanges
https://orcid.org/0000-0003-1915-3181
Abstract Since ultra-high-performance fiber reinforced concrete (UHPFRC) features an excellent structural performance with high strength and ductility, an assessment of local buckling in thin-walled UHPFRC members is required to prevent possible buckling failures. In this study, the local buckling behavior of UHPFRC flanges was evaluated based on experimental tests and nonlinear FE analysis. It was concluded that the local buckling behavior of UHPFRC flanges with brittle failure modes may occur within the current design ranges. A modified moment calculation procedure considering the local buckling was proposed to achieve a ductile design of the thin-walled UHPFRC girders.
Highlights Local buckling behavior of thin-walled UHPFRC flanges was investigated based on experimental and nonlinear finite element analysis. Local bending behavior in terms of strain differences between extreme fiber of flange surfaces was evaluated. A modified moment calculation procedure was proposed based on equivalent rectangular stress distribution using critical compressive strains. Local buckling of thin-walled UHPFRC flanges may cause brittle failure with a significant reduction in moment capacity. Local buckling of UHPFRC flanges may occur in current design range within the extreme design cases.
Experimental and numerical evaluations of local buckling in thin-walled UHPFRC flanges
https://orcid.org/0000-0003-1915-3181
Abstract Since ultra-high-performance fiber reinforced concrete (UHPFRC) features an excellent structural performance with high strength and ductility, an assessment of local buckling in thin-walled UHPFRC members is required to prevent possible buckling failures. In this study, the local buckling behavior of UHPFRC flanges was evaluated based on experimental tests and nonlinear FE analysis. It was concluded that the local buckling behavior of UHPFRC flanges with brittle failure modes may occur within the current design ranges. A modified moment calculation procedure considering the local buckling was proposed to achieve a ductile design of the thin-walled UHPFRC girders.
Highlights Local buckling behavior of thin-walled UHPFRC flanges was investigated based on experimental and nonlinear finite element analysis. Local bending behavior in terms of strain differences between extreme fiber of flange surfaces was evaluated. A modified moment calculation procedure was proposed based on equivalent rectangular stress distribution using critical compressive strains. Local buckling of thin-walled UHPFRC flanges may cause brittle failure with a significant reduction in moment capacity. Local buckling of UHPFRC flanges may occur in current design range within the extreme design cases.
Experimental and numerical evaluations of local buckling in thin-walled UHPFRC flanges
https://orcid.org/0000-0003-1915-3181
Abstract Since ultra-high-performance fiber reinforced concrete (UHPFRC) features an excellent structural performance with high strength and ductility, an assessment of local buckling in thin-walled UHPFRC members is required to prevent possible buckling failures. In this study, the local buckling behavior of UHPFRC flanges was evaluated based on experimental tests and nonlinear FE analysis. It was concluded that the local buckling behavior of UHPFRC flanges with brittle failure modes may occur within the current design ranges. A modified moment calculation procedure considering the local buckling was proposed to achieve a ductile design of the thin-walled UHPFRC girders.
Highlights Local buckling behavior of thin-walled UHPFRC flanges was investigated based on experimental and nonlinear finite element analysis. Local bending behavior in terms of strain differences between extreme fiber of flange surfaces was evaluated. A modified moment calculation procedure was proposed based on equivalent rectangular stress distribution using critical compressive strains. Local buckling of thin-walled UHPFRC flanges may cause brittle failure with a significant reduction in moment capacity. Local buckling of UHPFRC flanges may occur in current design range within the extreme design cases.
Experimental and numerical evaluations of local buckling in thin-walled UHPFRC flanges
Lee, Jeonghwa (author) / Byun, Namju (author) / Lee, Yunwoo (author) / Kang, Sung Yong (author) / Kang, Young-Jong (author)
Thin-Walled Structures ; 163
2021-03-08
Article (Journal)
Electronic Resource
English
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