芳綸纖維增強(qiáng)塑料預(yù)應(yīng)力高強(qiáng)混凝土梁彎曲特性及延性探討
X.W.Zou 韓小雷 季 靜 周 玉
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X. W. Zou (澳大利亞新南威爾士大學(xué))韓小雷 季 靜 周 玉 (華南理工大學(xué)土木系 廣州 510641)
[提要] 給出了以芳綸纖維增強(qiáng)復(fù)合塑料AFRP作為預(yù)應(yīng)力筋的高強(qiáng)混凝土梁的彎曲特性及延性的試驗(yàn)結(jié)果,并提出用一個(gè)綜合考慮強(qiáng)度與能量等因素的總體因子作為定義AFRP預(yù)應(yīng)力混凝土梁的延性指標(biāo)。
[關(guān)鍵詞] AFRP筋 預(yù)應(yīng)力混凝土梁 彎曲特性 延性 總體因子This paper presents experimental results on the flexural behavior and ductility of High Strength Concrete( HSC) beams prestressed by Aramid Fiber Reinforced Plastic( AFRP) tendons. A new definition of an overall factor expressed as a combination of the strength factor and energy factor is given as an indicator of ductility of beams prestressed with AFRP tendons.
Keywords: AFRP tendons; prestressed high strength concrete beam; flexural behavior; ductility; overall factor
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