大截面尺寸碳纖維約束混凝土柱試驗研究與壓應(yīng)力增量法計算
畢全超，朱守芹
- 摘 要
-
（河北建筑工程學院， 張家口 075000）［摘要］通過5根碳纖維約束混凝土柱的大偏壓試驗，采用增量法對碳纖維約束混凝土柱在極限荷載下的混凝土壓應(yīng)力進行了計算分析，將得到的結(jié)果與已有約束混凝土應(yīng)力-應(yīng)變關(guān)系曲線進行對比，得到大截面尺寸碳纖維約束混凝土柱的計算模型。同時考慮到計算的簡便，結(jié)合規(guī)范，給出了建議的大截面尺寸碳纖維約束混凝土應(yīng)力-應(yīng)變關(guān)系簡化計算模型。［關(guān)鍵詞］碳纖維布; 約束混凝土; 增量法中圖分類號：TU375.3 文獻標識碼：A 文章編號：1002-848X(2015)09-0094-04Experimental study and compressive stress incremental method calculation of large cross-section carbon fiber reinforced polymer confined concrete columnBi Quanchao, Zhu Shouqin（Hebei Institute of Architecture and Civil Engineering, Zhangjiakou 075000, China）Abstract: Based on large eccentricity compression tests of 5 carbon fiber reinforced polymer(CFRP) confined concrete columns, the compressive stress of concrete in CFRP sheet confined concrete columns under ultimate load was calculated and analyzed by incremental method. The obtained stress-strain curve was compared with that of the existing confined concrete to get the calculation model of large cross-section CFRP confined concrete column. Considering the simplicity for calculation, simplified calculation model of stress-strain relationship for the large cross-section CFRP confined concrete was proposed combined with codes.Keywords: CFRP sheet; confined concrete; incremental method作者簡介：畢全超，碩士，副教授，一級建造師，Email:hbjzdxbqc@sina.com。參考文獻［1］GB 50367—2006 混凝土結(jié)構(gòu)加固設(shè)計規(guī)范［S］. 北京：中國建筑工業(yè)出版社,2006.［2］CECS 146∶2003 碳纖維片材加固混凝土結(jié)構(gòu)技術(shù)規(guī)程［S］. 北京：中國建筑工業(yè)出版社,2003.［3］吳剛,呂志濤.纖維增強復(fù)合材料約束混凝土矩形柱應(yīng)力-應(yīng)變關(guān)系的研究［J］.建筑結(jié)構(gòu)學報,2004,25(3):99-106.［4］趙彤,謝劍,戴自強.碳纖維布約束混凝土應(yīng)力-應(yīng)變?nèi)€的試驗研究［J］.建筑結(jié)構(gòu),2000,30(7):40-43.［5］丁洪濤.粘貼纖維布鋼筋混凝土偏心受壓柱試驗與研究［D］.長沙:湖南大學,2003.［6］過鎮(zhèn)海.混凝土的強度和變形［M］.北京：清華大學出版社，1997.［7］GB 50010—2010混凝土結(jié)構(gòu)設(shè)計規(guī)范［S］.北京：中國建筑工業(yè)出版社，2011.
