A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Performance of polyolefin fiber reinforced concrete under cyclic loading
In structures, such as bridges, bridge-deck overlays, pavements, offshore structures, parts of high-rise buildings and crane-girders in industrial buildings, which are subjected to cyclic loading and dynamic loading, the flexural fatigue strength and endurance limit of concrete are important design parameters. This paper presents the results of an experimental and analytical investigation to determine the flexural fatigue strength and endurance limit of non-metallic (polyolefin) fiber reinforced concrete. Six different polyolefin FRC mixes with varying compressive strengths were investigated. The FRC beams were subjected to flexural fatigue with third point loading at a frequency of 25 load cycles per second. It was found that polyolefin fiber reinforced concrete reaches an endurance limit at about two million cycles. The fatigue life model (S-N curve) was more accurate when presented on a log-log scale than on a log-normal scale. Statistical and probabilistic concepts are introduced to predict the flexural fatigue model and the fatigue life expectancy of the composite.
Performance of polyolefin fiber reinforced concrete under cyclic loading
In structures, such as bridges, bridge-deck overlays, pavements, offshore structures, parts of high-rise buildings and crane-girders in industrial buildings, which are subjected to cyclic loading and dynamic loading, the flexural fatigue strength and endurance limit of concrete are important design parameters. This paper presents the results of an experimental and analytical investigation to determine the flexural fatigue strength and endurance limit of non-metallic (polyolefin) fiber reinforced concrete. Six different polyolefin FRC mixes with varying compressive strengths were investigated. The FRC beams were subjected to flexural fatigue with third point loading at a frequency of 25 load cycles per second. It was found that polyolefin fiber reinforced concrete reaches an endurance limit at about two million cycles. The fatigue life model (S-N curve) was more accurate when presented on a log-log scale than on a log-normal scale. Statistical and probabilistic concepts are introduced to predict the flexural fatigue model and the fatigue life expectancy of the composite.
Performance of polyolefin fiber reinforced concrete under cyclic loading
Leistungsfähigkeit von Polyolefin-faserverstärktem Beton unter zyklischer Belastung
Ramakrishnan, V. (author) / Sivakumar, C. (author)
1999
21 Seiten, 7 Bilder, 2 Tabellen, 22 Quellen
Conference paper
English
Performance of Polyolefin Fiber Reinforced Concrete Under Cyclic Loading
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