Behavior of Steel Fiber-Reinforced Concrete under Biaxial Stresses
Biaxial behavior of various types of concrete is essential to be considered in construction design because construction structures normally experience multiaxial stresses rather than uniaxial stress. Research on biaxial behavior of steel fiber-reinforced concrete (SFRC) has been conducted in the pas...
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Veröffentlicht in: | ACI structural journal 2020-07, Vol.117 (4), p.267-278 |
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creator | Chiew, S.M Ibrahim, I.S Jamaluddin, N Sarbini, N.N Ma, C.K Ahmad, Y |
description | Biaxial behavior of various types of concrete is essential to be considered in construction design because construction structures normally experience multiaxial stresses rather than uniaxial stress. Research on biaxial behavior of steel fiber-reinforced concrete (SFRC) has been conducted in the past decades. Most of the research, however, is only limited to biaxial compression, whereas information regarding biaxial tension and biaxial tensioncompression on SFRC is relatively scarce. This study presents a simple biaxial experimental setup to investigate the biaxial behavior of SFRC with 0.5, 1.0, and 1.5% steel fiber under biaxial tension and biaxial tension-compression. It is found that the smaller stress ratio enhanced the deformability and tensile capacity of SFRC under biaxial tension-compression, whereas the effect of stress ratio on biaxial tensile behavior of SFRC is negligible. The addition of steel fiber eventually enhanced the concrete strength by 15 to 41 % under tension-compression compared with plain concrete. Keywords: biaxial tension; fiber volumetric fraction; steel fiber-reinforced concrete (SFRC); stress ratio; tension-compression. |
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Research on biaxial behavior of steel fiber-reinforced concrete (SFRC) has been conducted in the past decades. Most of the research, however, is only limited to biaxial compression, whereas information regarding biaxial tension and biaxial tensioncompression on SFRC is relatively scarce. This study presents a simple biaxial experimental setup to investigate the biaxial behavior of SFRC with 0.5, 1.0, and 1.5% steel fiber under biaxial tension and biaxial tension-compression. It is found that the smaller stress ratio enhanced the deformability and tensile capacity of SFRC under biaxial tension-compression, whereas the effect of stress ratio on biaxial tensile behavior of SFRC is negligible. The addition of steel fiber eventually enhanced the concrete strength by 15 to 41 % under tension-compression compared with plain concrete. 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Research on biaxial behavior of steel fiber-reinforced concrete (SFRC) has been conducted in the past decades. Most of the research, however, is only limited to biaxial compression, whereas information regarding biaxial tension and biaxial tensioncompression on SFRC is relatively scarce. This study presents a simple biaxial experimental setup to investigate the biaxial behavior of SFRC with 0.5, 1.0, and 1.5% steel fiber under biaxial tension and biaxial tension-compression. It is found that the smaller stress ratio enhanced the deformability and tensile capacity of SFRC under biaxial tension-compression, whereas the effect of stress ratio on biaxial tensile behavior of SFRC is negligible. The addition of steel fiber eventually enhanced the concrete strength by 15 to 41 % under tension-compression compared with plain concrete. 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Research on biaxial behavior of steel fiber-reinforced concrete (SFRC) has been conducted in the past decades. Most of the research, however, is only limited to biaxial compression, whereas information regarding biaxial tension and biaxial tensioncompression on SFRC is relatively scarce. This study presents a simple biaxial experimental setup to investigate the biaxial behavior of SFRC with 0.5, 1.0, and 1.5% steel fiber under biaxial tension and biaxial tension-compression. It is found that the smaller stress ratio enhanced the deformability and tensile capacity of SFRC under biaxial tension-compression, whereas the effect of stress ratio on biaxial tensile behavior of SFRC is negligible. The addition of steel fiber eventually enhanced the concrete strength by 15 to 41 % under tension-compression compared with plain concrete. Keywords: biaxial tension; fiber volumetric fraction; steel fiber-reinforced concrete (SFRC); stress ratio; tension-compression.</abstract><cop>Farmington Hills</cop><pub>American Concrete Institute</pub><doi>10.14359/51723545</doi><tpages>12</tpages></addata></record> |
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subjects | Axial stress Compressive strength Concrete Concrete properties Construction industry Design Formability Reinforced concrete Reinforcing steels Steel Steel fiber reinforced concretes Steel fibers Stress ratio Stress-strain curves Studies Tensile strength Tension |
title | Behavior of Steel Fiber-Reinforced Concrete under Biaxial Stresses |
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