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Flexural behavior of concrete-filled steel tubular beam
The composite member of steel and concrete has the benefits of both materials; the steel has a high tensile strength and ductility, while the concrete has a high stiffness and compressive strength. The main objective of this study is to determine the maximum load of steel beams (tubular square and circular) filled with different types of concrete under bending in construction works. This paper presents an experimental test on the flexural behavior of square and circular concrete filled steel tubes (CFST) subjected to bending, where the depth to thickness ratios (D/t) are 33.34 and 37.5. Concrete of two different compressive strengths was used to fill the steel sections (22.9 and 31.9 MPa). From the investigation results, it was observed that the maximum moment strength of the CFST is generally higher than that of the corresponding hollow beams. The increases in the first group of square beam (S1 to S3) are 47.15 to 87.07%. The increases in the first group of circular beam (C1 to C3) are 63.94 to 104.96% The increases occurred due to the steel confinement for concrete core, which increased the ductility and moment capacity of the composite beam.
Flexural behavior of concrete-filled steel tubular beam
The composite member of steel and concrete has the benefits of both materials; the steel has a high tensile strength and ductility, while the concrete has a high stiffness and compressive strength. The main objective of this study is to determine the maximum load of steel beams (tubular square and circular) filled with different types of concrete under bending in construction works. This paper presents an experimental test on the flexural behavior of square and circular concrete filled steel tubes (CFST) subjected to bending, where the depth to thickness ratios (D/t) are 33.34 and 37.5. Concrete of two different compressive strengths was used to fill the steel sections (22.9 and 31.9 MPa). From the investigation results, it was observed that the maximum moment strength of the CFST is generally higher than that of the corresponding hollow beams. The increases in the first group of square beam (S1 to S3) are 47.15 to 87.07%. The increases in the first group of circular beam (C1 to C3) are 63.94 to 104.96% The increases occurred due to the steel confinement for concrete core, which increased the ductility and moment capacity of the composite beam.
Flexural behavior of concrete-filled steel tubular beam
Shallal, Muhaned A. (author)
2018-03-01
1353134 byte
Conference paper
Electronic Resource
English
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