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工程力学  2015 

桥梁拉索用CFRP线材阻尼特性试验研究和理论分析

DOI: 10.6052/j.issn.1000-4750.2013.08.0724, PP. 176-183

Keywords: 斜拉索,CFRP丝,高强钢丝,阻尼,能量损失系数

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Abstract:

为获得用于桥梁的CFRP拉索的阻尼特性,用自由衰减振动试验方法测试了CFRP线材(CFRP丝)和高强度钢丝的阻尼值,根据应变能比例阻尼理论分析了其弯曲变形的能量损失系数。通过不同振动频率条件下的测试结果比较了CFRP丝和钢丝的阻尼特性及其与振幅之间的相关性。结果表明,两种材料的振动阻尼均随应变幅值的增加而单调增加,但两者的变化趋势有差异。在同一应变幅值条件下,CFRP丝的实测阻尼值比高强钢丝的小。高强钢丝的能量损失系数与振幅无关,验证了能量损失理论对高强钢丝材料的阻尼计算的适用性。但CFRP丝的能量损失系数实测结果较离散,且与振幅有一定相关性,在特定振幅范围内可采用能量损失理论计算CFRP丝的阻尼。

References

[1]  Meier U. Structural tensile elements made of advanced composite materials [J]. Structural Engineering International, 1999, 99(4): 281―285.
[2]  Erki M A, Rizkalla S H. Anchorages for FRP reinforcement [J]. Concrete International, 1993, 15(6): 54―59.
[3]  Roos F, Noisternig J F. CFRP-tendons-development and testing [C]// Proceedings of IABSE Conference, Cable-Stayed Bridges-Past, Present and Future. Malm, Sweden: IABSE, 1999: 643―650.
[4]  Cheng S H, Lau D T. Impact of using CFRP cables on the dynamic behavior of cable-stayed bridges [C]// IABSE Symposium Report. Responding to Tomorrow's Challenges in Structural Engineering. Budapest, Hungary: IABSE, 2006: 19―26.
[5]  陈小英, 李唐宁, 黄音, 等. 波形齿夹具张拉 CFRP 带的力学性能试验研究及夹具体系设计[J]. 工程力学, 2012, 29(1): 187―194. Chen Xiaoying, Li Tangning, Huang Yin, et al. Experimental research on mechanical property of pulling CFRP belt with wave-shaped-gear clamp and design of clamp system [J]. Engineering Mechanics, 2012, 29(1): 187―194. (in Chinese)
[6]  侯苏伟, 叶华文, 强士中, 等. CFRP主缆在鞍座及索夹处的抗弯折性能研究[J]. 工程力学, 2012, 29(5): 128―133. Hou Suwei, Ye huawen, Qiang Shizhong, et al. Study on bending properties of CFRP cable in saddle and cable clamp [J]. Engineering Mechanics, 2012, 29(5): 128―133. (in Chinese)
[7]  叶勇, 郭子雄. CFRP筋夹板式锚具锚固性能试验研究[J]. 工程力学, 2012, 29(8): 172―179. Ye Yong, Guo Zixiong. Experimental research on the performance of clamping anchors for CFRP rods [J]. Engineering Mechanics, 2012, 29(8): 172―179. (in Chinese)
[8]  徐礼华, 许锋, 曾浩, 等. CFRP 筋体外加固铁路预应力混凝土简支梁桥设计及试验研究[J]. 工程力学, 2013, 30(2): 89―96. Xu Lihua, Xu Feng, Zeng Hao, et al. The design and test study on prestressed railway concrete beam bridge strengthened by externally draped CFRP tendons [J]. Engineering Mechanics, 2013, 30(2): 89―96. (in Chinese)
[9]  宗周红, 程怡, 黄学漾, 等. CFRP 板加固 RC&PPC 梁抗剪性能试验研究[J]. 工程力学, 2013, 30(6): 236―246. Zong Zhouhong, Cheng Yi, Huang Xueyang, et al. Experimental study on shear properties of reinforced concrete (RC) and partial prestressed concrete (PPC) beams strengthened with externally bonded CFRP strips [J]. Engineering Mechanics, 2013, 30(6): 236―246. (in Chinese)
[10]  谢旭, 朱越峰. CFRP拉索设计对大跨度斜拉桥力学特性的影响[J]. 工程力学, 2007, 24(11): 113―120. Xie Xu, Zhu Yuefeng. Study on behavior of long-span CFRP cable-stayed bridges [J]. Engineering Mechanics, 2007, 24(11): 113―120. (in Chinese)
[11]  谢旭, 张鹤, 朱越峰. 柔性CFRP 索在横向风荷载作用下的振动特性[J]. 浙江大学学报(工学版), 2008, 42(1): 145―151. Xie Xu, Zhang He, Zhu Yuefeng. Dynamic characteristics of CFRP cables under lateral wind load [J]. Journal of Zhejiang University (Engineering Science), 2008, 42(1): 145―151. (in Chinese)
[12]  苟昌焕, 谢旭, 高金盛, 等. 应用碳纤维索的大跨度斜拉桥静力学特性分析[J]. 浙江大学学报(工学版), 2005, 39(1): 137―142. Gou Changhuan, Xie Xu, Gao Chinsheng, et al. Static behavior of long-span cable-stayed bridges using carbon fiber composite cable [J]. Journal of Zhejiang University (Engineering Science), 2005, 39(1): 137―142. (in Chinese)
[13]  张治成, 谢旭, 张鹤. 大跨度斜拉桥拉索设计方法以及碳纤维索的应用[J]. 浙江大学学报(工学版), 2007, 41(9): 39―46. Zhang Zhicheng, Xie Xu, Zhang He. Study on safety factor of cables and application of CFRP cables in long-span cable-stayed bridges [J]. Journal of Zhejiang University (Engineering Science), 2007, 41(9): 39―46. (in Chinese)
[14]  谢旭, 朱越峰, 申永刚. 大跨度钢索和CFRP 索斜拉桥车桥耦合振动研究[J]. 工程力学, 2007, 24(I): 53―61. Xie Xu, Zhu Yuefeng, Shen Yonggang. Study on vibration of long-span cable-stayed bridge with steel and CFRP cables due to moving vehicles [J]. Engineering Mechanics, 2007, 24(I): 53―61.
[15]  Hard A R, Holben R D. Application of the vibration decay test to transmission line conductors [J]. Power Application and Systems, IEEE Transactions on, 1967, Power Application and Systems, 86(2): 189―195.
[16]  Yamaguchi H, Fujino Y. Modal damping of flexibility oscillation in suspended cables [J]. Journal of Structural Mechanics and Earthquake Engineering, JSCE, 1987, 4(2): 413―421.
[17]  Yamaguchi H, Adhikari R. Energy-based evaluation of modal damping in structural cables with and without damping treatment [J]. Journal of Sound and Vibration. 1995, 181(1): 71―83.
[18]  Yamaguchi H, Ito M. Mode-dependence of structural damping in cable-stayed bridges [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1997, 72: 289―300.
[19]  Yamaguchi H, Alauddin M d, Poovarodom N. Dynamic characteristics and vibration control of a cable system with substructural interactions [J]. Engineering Structure, 2001, 23(10): 1348―1358.
[20]  Wei C Y, Kukureka S N. Evaluation of damping and elastic properties of composites and composite structures by the resonance technique [J]. Journal of Materials Science, 2000, 35(15): 3785―3792.
[21]  郑罡, 徐兴, 高赞明, 倪一清. 斜拉索阻尼特性的试验研究[J]. 公路交通技术, 2002, 4: 35―39. Zheng G, Xu X, KO J M, Ni Y Q. Experimental study on damping characteristics of stay cables [J]. Technology of highway and transport, 2002, 4: 35―39. (in Chinese)
[22]  Zheng G, Ni Y Q, KO J M, Xu X. Tension-dependent internal damping of a cable model [J]. Key Engineering Materials. 2003, 243: 415―420.
[23]  Kady H M, Arockiasamy M, Samaan S H, et al. Damping characteristics of carbon fiber composite cables for application in cable-stayed bridges [C]// Proceedings of IABSE Conference, Cable-Stayed Bridges-Past, Present and Future. Malm, Sweden: IABSE, 1999.
[24]  谢旭, 中村一史, 前田研一, 张治成, 榎本刚. CFRP 拉索阻尼特性实验研究和理论分析[J]. 工程力学, 2010, 27(3): 205―211. Xie Xu, Nakamura H, Maeda K, Zhang Zhicheng, Enomoto T. Theoretical analysis and experimental test on damping characteristics of CFRP stay cables. Engineering Mechanics, 2010, 27(3): 205―211. (in Chinese)
[25]  Clough R W, Penzien J. Dynamics of structures [M]. Berkeley: Computer& Structures. Inc, 1995: 56―57.

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