纤维增强混凝土的疲劳强度和韧性指标

"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991" Pub Date : 1991-08-01 DOI:10.14359/2919

G. Batson

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引用次数: 1

摘要

本文介绍了三种金属纤维和一种合成纤维按体积百分比在0.1 ~ 2.0范围内增强混凝土的抗弯疲劳强度和韧性指标的试验数据。金属纤维增强梁比合成纤维增强梁表现出更高的疲劳强度。各类型纤维的疲劳强度随纤维体积百分比的增加而增大。梁的疲劳强度随金属纤维变形形状的不同而变化。根据静荷载挠度曲线下的面积计算纤维增强梁的韧性指标。两种金属纤维增强梁的韧性指标均大于合成纤维增强梁。韧性指标随纤维体积百分比的增加而增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Fatigue Strength Toughness Indices of Fiber Reinforced Concrete

This paper presents test data on the flexural fatigue strength and toughness indices of concrete reinforced with three types of metallic and one type of synthetic fuber in volume percentages ranging from 0.1 to 2.0. The beams reinforced with metallic fibers exhibited greater fatigue strength than beams reinforced with synthetic fibers. The fatigue strength increased with fiber volume percentage for each type of fiber. The fatigue strength of the beams varied with the deformed shape of the metallic fibers. The toughness indices of the fiber reinforced beams were computed from the area under the static load deflection curve. The toughness indices for two of the three type of metallic fiber reinforced beams were greater than for the synthetic fiber reinforced beams. The toughness indices increased with fiber volume percentage.

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来源期刊

"SP-126: Durability of Concrete: Second International Conference, Montreal, Canada 1991"

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