受腐蚀钢筋混凝土墩柱抗震性能试验研究
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摘要
为了研究腐蚀环境对钢筋混凝土桥墩抗震性能影响,试验制作8根相同几何尺寸和材料配比的钢筋混凝土墩柱模型。通过对试件进行实验室恒定电流加速腐蚀,得到不同腐蚀程度的墩柱,并在恒定轴压比下进行低周反复荷载试验。分别从极限承载力、延性、耗能能力等方面评估墩柱抗震性能。对试验得到的滞回曲线和相应的骨架曲线进行分析,得到钢筋混凝土墩柱的抗震性能随腐蚀率的变化规律。结果显示:在腐蚀率较小情况下,随着腐蚀率的增大,墩柱的延性、承载力、耗能均呈不同程度的下降趋势。
In order to study the influence of corrosion environment on seismic performance of reinforced concrete bridge piers,eight pier samples were made in the same geometry size. The piers with different degrees of corrosion were got through specimen accelerated corrosion in lab. Then under the constant axial compression,low reversed cyclic loads were applied to the test samples. The pier seismic performance was assessed based on the ultimate bearing capacity,ductility and energy dissipation etc. The change of seismic performance of reinforced concrete pier with corrosion rate was got by analyzing the hysteretic curve and skeleton curve from test result. Results showed that in the condition of low corrosion rate,with the increase of corrosion rate,pier's ductility,capacity,energy dissipation were in varying degrees of decline.
引文
[1]李贵乾,郑罡,高波.基于Open SEES的钢筋混凝土桥墩拟静力试验数值分析[J].世界地震工程,2011,27(1):110-114.
    [2]边丽.损伤钢筋混凝土结构延性研究[D].长沙:中南大学,2010.
    [3]贡金鑫,赵国藩.钢筋混凝土结构耐久性研究的进展[J].工业建筑,2000,30(5):1-5.
    [4]方从启.腐蚀对反复荷载下钢筋与混凝土粘结性能的影响[J].工业建筑,2005,35(12):15-22.
    [5]张章,方从启.高腐蚀率钢筋混凝土梁抗弯性能研究[J].工业建筑,2010,40(6):31-35.
    [6]司炳君,李宏男,王东升.基于位移设计钢筋混凝土桥墩抗震性能试验研究(I):拟静力试验[J].地震工程与工程振动,2008,28(1):123-129.
    [7]艾庆华,李宏男,王东升,等.基于位移设计钢筋混凝土桥墩抗震性能试验研究(Ⅱ):振动台试验[J].地震工程与工程振动,2008,28(3):39-46.
    [8]阎贵平.梁式桥弹塑性地震反应与应用延性抗震设计方法的基础研究[D].上海:同济大学,1989.
    [9]Ma Ying,Che Yi,Gong Jinxin.Behavior of Corrosion Damaged Circular Reinforced Concrete Columns Under Cyclic Loading[J].Construction and Building Materials,2012,29:548-556.
    [10]Kwan W P,Billington S L.Simulation of Structural Concrete Under Cyclic Load[J].Journal of Structural Engineering,ASCE,2001,127(12):1391-1401.
    [11]史庆轩,牛荻涛,颜桂云.反复荷载作用下锈蚀钢筋混凝土压弯构件恢复力性能的试验研究[J].地震工程与工程振动,2000,20(4):44-50.
    [12]贡金鑫,仲伟秋,赵国藩.受腐蚀钢筋混凝土偏心受压构件低周反复性能的试验研究[J].建筑结构学报,2004,25(5):92-97.
    [13]贡金鑫,李金波,赵国藩.受腐蚀钢筋混凝土构件的恢复力模型[J].土木工程学报,2005,38(11):38-44,101.
    [14]Park R.Evaluation of Ductility of Structures and Structural Assemblages from Laboratory Testing[J].Bulletin of the New Zealand National Society for Earthquake Engineering,1989,22(3):155-166.

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