碳纤维布增强混凝土框架抗震性能的有限元分析
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摘要
利用碳纤维布(CFS)对一个9层钢筋混凝土框架的底层柱进行了加固,运用有限元程序对加固前后结构的整体抗震性能进行了动力分析。分析结果表明,利用碳纤维布加固底部框架柱有助于提高框架的整体抗震性能,从而减少框架在地震作用下的最大侧移和各层间位移。
Finite element dynamic analysis was carried out for a 9-story normal RC frame and a identical frame whose first floor columns were strengthened with carbon fiber sheet. The analysis results show that using carbon fiber sheet to strengthen columns of lower floors of RC frame can improve the integral seismic behavior of RC frame and reduce the maximum displacement of frame and the story drifts.
引文
[1]赵彤,刘明国,谢剑,等.应用碳纤维布增强钢筋混凝土柱抗震能力的研究[J].地震工程与工程振动,2000,20(4):66~72.
    [2]赵彤,谢剑.碳纤维布补强加固混凝土结构新技术[M].天津:天津大学出版社,2001.
    [3]姜晋庆,张铎.结构弹塑性有限元分析法[M].北京:宇航出版社,1990.
    [4]Hemmaty Y.Modeling of the shear force transferred between cracks in reinforced and fiber reinforced concrete structures[A].Proceed ings of theANSYS Conference[C].P ittsburgh,Pennsylvan ia,August 1998.

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