全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

CFRP索斜拉试验桥动态测试与地震响应分析

, PP. 47-53

Keywords: 桥梁工程,斜拉桥,CFRP索,动态测试,有限元分析,地震响应

Full-Text   Cite this paper   Add to My Lib

Abstract:

为获得碳纤维复合材料(CFRP)索斜拉试验桥的动力特性试验结果与理论值的差异,并比较CFRP索与钢索斜拉桥的动力特性和地震响应值,采用脉动法对CFRP索试验桥进行现场模态试验,联合采用峰值拾取法和互功率谱法识别模态参数,并将测试结果与有限元计算值进行对比;同时根据等轴向刚度准则进行CFRP索与钢索的替换,对不同配索模型分别进行了动力特性和地震响应分析。分析结果表明试验桥的实测结果与计算值接近,振型吻合良好,前3阶自振频率最大差值仅为7.9%;因试验桥整体刚度大,CFRP索斜拉桥较钢索的优势仅部分体现,自振频率最大提升值为0.2%,地震作用下塔底轴力和弯矩峰值分别减小了0.11%和0.16%。

References

[1]  陈常松,田仲初,郑万泔,等.大跨度混凝土斜拉桥模态试验技术研究[J].土木工程学报,2005,38 (10):72?75,101. CHEN Chang?song,TIAN Zhong?shu,ZHENG Wan?gan,et al.A study on the modal experiment technique of long?span cable?stayed bridges[J].China Civil Engineering Journal,2005,38(10):72?75,101.
[2]  张新军,应磊东.应用碳纤维缆索的大跨度悬索桥抗风稳定性研究[J].土木工程学报,2006,39(12):79?82,118. ZHANG Xin?jun,YING Lei?dong.Wind stability of long?span suspension bridges using carbon fiber reinforced polymer cables[J].China Civil Engineering Journal,2006,39(12):79?82,118.
[3]  刘士林,王似舜.斜拉桥设计[M].北京:人民交通出版社,2006.
[4]  Christoffersen J,Jensen H E,Hauge L,et al.Innovative cable?stayed bridge[J].Concrete,1998,32(7):32?34.
[5]  Grace N F,Navarre F C,Nacey R B, et al.Design?con struction of bridge street bridge:first CFRP bridge in the United States[J].PCI Journal,2002,47(5):20?35.
[6]  梅葵花,吕志涛.CFRP在超大跨悬索桥和斜拉桥中的应用前景[J].桥梁建设,2002(2):75?78. MEI Kui?hua,LU Zhi?tao.Application prospect of CFRP to super length suspension bridge and cable?stayed bridge[J].Bridge Construction,2002(2):75?78.
[7]  梅葵花,吕志涛,张继文,等.碳纤维复合材料索斜拉桥的设计与测试[J].长安大学学报:自然科学版,2007,27(6):48?52. MEI Kui?hua,LU Zhi?tao,ZHANG Ji?wen,et al.Study on the design and test of the cable?stayed bridge with CFRP cables[J].Journal of Chang?an University:Natural Science Edition,2007,27(6):48?52.
[8]  陈凤山,赵国藩,王兆忠.CFRP加固损伤钢筋混凝土梁的性能试验[J].建筑科学与工程学报,2008,25(4):116?122. CHEN Feng?shan,ZHAO Guo?fan,WANG Zhao?zhong.Test on performance of damaged RC beams strengthened with CFRP[J].Jonrnal of Archiecture and Civil Engineering,2008,25(4):116?122.
[9]  刘荣桂,李成绩,龚向华,等.碳纤维斜拉索的动力参数特性分析[J].哈尔滨工业大学学报,2008,40(8):1284?1288. LIU Rong?gui,LI Cheng?ji,GONG Xiang?hua,et al.Analysis of dynamic properties for CFRP stayed cables[J].Journal of Harbin Institute of Technology,2008,40(8):1284?1288.
[10]  梅葵花,吕志涛,孙胜江.CFRP拉索的非线性参数振动特性[J].中国公路学报,2007,20(1):52?57. MEI Kui?hua,LU Zhi?tao,SUN Sheng?jiang.Property of nonlinear parametric vibration of CFRP cables[J].China Journal of Highway and Transport,2004,17(2):43?45.
[11]  吕志涛,梅葵花.国内首座CFRP索斜拉桥的研究[J].土木工程学报,2007,40(1):54?59. LU Zhi?tao,MEI Kui?hua.First application of CFRP cables for a cable?stayed bridge in China[J].China Civil Engineering Journal,2007,40(1):54?59.
[12]  Rizzo P,Lanzade S F.Acoustic emission monitoring of carbon?fiber?reinforced?polymer bridge stay cables in large?scale testing[J].Experimental Mechanics,2001,41(3):282?290.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133