东南大学学报(英文版)
東南大學學報(英文版)
동남대학학보(영문판)
JOURNAL OF SOUTHEAST UNIVERSITY
2004年
3期
352-355
,共4页
钱春香%陈世欣%郑孝霞%过占其%皮埃特·斯居文
錢春香%陳世訢%鄭孝霞%過佔其%皮埃特·斯居文
전춘향%진세흔%정효하%과점기%피애특·사거문
加固%高强混凝土%FRP%轴心抗压强度%理论计算
加固%高彊混凝土%FRP%軸心抗壓彊度%理論計算
가고%고강혼응토%FRP%축심항압강도%이론계산
strengthening%high-strength concrete%fibre reinforced plastics (FRP)%axial compressive strength%theoretical calculation
建立了一个用于估算FPR加固混凝土轴心抗压强度的数学模型, 该模型引入了FRP强度发挥系数(套箍发挥系数). 实验结果表明, 混凝土达到极限强度时, FRP并未达到极限强度, 其强度发挥系数在0. 28～0. 59之间, 与FRP的弹性模量有关. 该计算方法可用于估算FRP加固混凝土的轴心抗压强度, 其理论计算强度高于实测强度10%～30%, 偏差主要来自FRP与混凝土的界面粘结状况不理想及混凝土抗压强度数据的离散性等.
建立瞭一箇用于估算FPR加固混凝土軸心抗壓彊度的數學模型, 該模型引入瞭FRP彊度髮揮繫數(套箍髮揮繫數). 實驗結果錶明, 混凝土達到極限彊度時, FRP併未達到極限彊度, 其彊度髮揮繫數在0. 28～0. 59之間, 與FRP的彈性模量有關. 該計算方法可用于估算FRP加固混凝土的軸心抗壓彊度, 其理論計算彊度高于實測彊度10%～30%, 偏差主要來自FRP與混凝土的界麵粘結狀況不理想及混凝土抗壓彊度數據的離散性等.
건립료일개용우고산FPR가고혼응토축심항압강도적수학모형, 해모형인입료FRP강도발휘계수(투고발휘계수). 실험결과표명, 혼응토체도겁한강도시, FRP병미체도겁한강도, 기강도발휘계수재0. 28～0. 59지간, 여FRP적탄성모량유관. 해계산방법가용우고산FRP가고혼응토적축심항압강도, 기이론계산강도고우실측강도10%～30%, 편차주요래자FRP여혼응토적계면점결상황불이상급혼응토항압강도수거적리산성등.
A theoretical calculation method of the axial compressive strength of a high strength concrete with fibre reinforced plastics (FRP) constraint is proposed. It is shown by test verification that the FRP strength devotion factor used for this method is in accord with actual conditions. FRP is not up to the ultimate strength when the concrete reaches the ultimate strength, whose strength devotion factor is in the range of 0. 28 to 0. 59, which is related to an elastic modulus. The method can be used to estimate axial compressive strength of the concrete strengthened with FRP. The theoretical strength is 10% to 30% higher than the measured one. The deviation comes mainly from a non-ideal bonding condition of FRP-concrete interfaces and discrete property of the testing data of compressive strength.
