在標準的圓柱試體抗壓試驗下，探討鋼纖維混凝土(SFRC)的應力應變行為。本試驗採用彎鉤型鋼纖維，其中包含了不同的長度和長細比，RI值的範圍為0.4到1.7。從其他文獻和本試驗所得出的結果，消能比韌性比還要能夠去表示鋼纖維混凝土的韌性，且長的鋼纖維和比較小的長細比擁有比較好的能力，像是增加壓力強度所對應的應變和改善鋼纖維混凝土的韌性，體積比從試驗中得出大約上限為2%。最後從試驗的資料可以推出一套分析模型，此分析模型建議了鋼纖維混凝土的應力應變模型和韌性，從其他文獻提出的分析模型和本試驗做比較，最明顯的不同為下降段的走向。最後利用本試驗提出的分析模型去模擬國外文獻提出的SFRC柱承受軸壓下的應力應變行為，分別從壓力強度、對應的應變和彈性模數去做比較，探討分析和試驗的結果是否相近。

Compression tests of cylinder specimens carried out to characterize the compressive stress-strain behavior of steel fiber reinforced concrete (SFRC) are reported. Hooked-end fibers with different lengths and aspect ratios were considered. The reinforcing index in terms of volume fraction of fibers ranged from 0.4 to 1.7. Test results from this research and from other studies indicate that toughness index is a more appropriate quantity than toughness ratio in evaluating the toughness of SFRC. Steel fibers of a longer length and a smaller aspect ratio have a better performance in increasing the strain at the compressive strength and in improving the toughness of SFRC. A higher amount of steel fibers lead to a better performance up to 2% volume fraction. Based on the test results, analytical models for the compressive stress-strain curve and toughness of SFRC are proposed. Significant difference is found between the descending branches of the stress-strain curves predicted by the proposed model and by models developed by other researchers.

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