首页> 外文会议>International PhD Symposium in Civil Engineering vol.2; 20040616-19; Delft(NL) >Bond of reinforcing bars in steel fiber reinforced concrete
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Bond of reinforcing bars in steel fiber reinforced concrete

机译:钢纤维混凝土中钢筋的粘结

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Pull-out tests were performed on 10 mm diameter ribbed bars embedded along three times the bar diameter in 200 mm cubes made of plain and steel fiber reinforced self-compacting concrete (SFRC) of normal strength (B45). The fiber content was 60 and 120 kg/m~3 the aspect ratio of the fibers (i.e. l_f/d_f) was 45 and 80 and the concrete cover was 15,25,35 and 9 mm. The experimentally observed bond stress-slip relationship was compared with the bond stress-slip relationship calculated with the analytical bond model of Den Uijl & Bigaj, which was modified for SFRC.
机译:在直径为10 mm的带肋钢筋上进行拉拔试验,该带肋钢筋沿钢筋直径的三倍嵌入200 mm的立方体中,该立方体由普通强度和钢纤维增强的自密实混凝土(SFRC)制成,强度为(B45)。纤维含量为60和120kg / m〜3,纤维的长径比(即lf / d_f)为45和80,混凝土覆盖层为15、25、35和9mm。将实验观察到的粘结应力-滑动关系与通过分析SFRC的Den Uijl&Bigaj分析粘结模型计算出的粘结应力-滑动关系进行比较。

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