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題 名 | 高強度鋼纖維混凝土圍束效應研究=Study of the Confinement Effect of High Strength Steel Fiber Reinforced Concrete |
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作 者 | 廖文正; 郭耀仁; | 書刊名 | 混凝土科技 |
卷 期 | 8:1 2014.01[民103.01] |
頁 次 | 頁30-35 |
分類號 | 440.328 |
關鍵詞 | 圍束效應; 鋼纖維混凝土; 高強度混凝土; |
語 文 | 中文(Chinese) |
中文摘要 | 高強度混凝土是極為脆性的材料,對於承受高軸壓的高強度鋼筋混凝土柱,必須提供更多的圍束箍筋才能使其達到耐震的要求。本研究主要探討高強度鋼纖維混凝土的力學性質與圍束效應,目的在了解鋼纖維含量與韌性的關係,進而提出韌性的回歸公式,並與箍筋所提供的圍束效能互相比較。 |
英文摘要 | This study presents the mechanical properties and confinement effect of highstrength steel fiber reinforced concrete. Due to brittleness of high strength concrete, more confinement is needed to improve the ductility and satisfy seismic requirements for high strength reinforced column, particularly under high axial loading demands. Furthermore, early cover spalling trigs substantial compressive strength loss and thus sudden failure occurs. Many studies show that addition of steel fibers can not only effectively prevent the early cover spalling, but also increase the toughness and ductility of high-strength concrete. The relationship between the toughness and the volume fraction of steel fibers of high-strength steel fiber reinforced concrete is investigated in this study. The confinement efficiency provided by steel fibers or stirrups of the toughness of high strength steel fiber reinforced concrete is also proposed and verified with experimental data. |
本系統中英文摘要資訊取自各篇刊載內容。