884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

       趙  彤  鄭  宏  戴自強(qiáng)  張景明  謝  劍
      （天津大學(xué)土木工程系  300072）

[提要]  分析了采用不同粘貼方式和粘貼層數(shù)的碳纖維布補(bǔ)強(qiáng)加固的鋼筋混凝土柱在正截面承載力和破壞形態(tài)等方面的變化情況。試驗(yàn)研究表明：碳纖維布對(duì)鋼筋混凝土柱的承載能力具有良好的補(bǔ)強(qiáng)加固效果。在此基礎(chǔ)上，提出了碳纖維布加固鋼筋混凝土柱正截面承載力的簡(jiǎn)化計(jì)算公式，它與試驗(yàn)結(jié)果能較好地吻合。
[關(guān)鍵詞]  碳纖維  鋼筋混凝土柱  正截面承載力  補(bǔ)強(qiáng)加固

Based on the experimental study of three groups of reinforced concrete columns subject to axial compression and bending, this paper analyzes the effect of using continuous carbon fiber sheet for reinforcing the flexural strength and failure mode of these specimens. The results indicate that the carbon fiber sheet could effectively increase the flexural strength of reinforced concrete columns. And then, according to the study mentioned above, the paper proposes the simplified design formulas to calculate the flexural strength of reinforced concrete columns by using continuous carbon fiber sheet. The results of the calculation and the experiment coincide well.
Keywords: carbon fiber sheet; reinforced concrete column; flexural strength; strengthening