Browse > Article
http://dx.doi.org/10.12989/sem.2017.63.6.735

Experimental study of vibration characteristics of FRP cables based on Long-Gauge strain  

Xia, Qi (Jiangsu Key Laboratory of Engineering Mechanics, School of Civil Engineering, Southeast University)
Wu, JiaJia (Jiangsu Key Laboratory of Engineering Mechanics, School of Civil Engineering, Southeast University)
Zhu, XueWu (Jiangsu Key Laboratory of Engineering Mechanics, School of Civil Engineering, Southeast University)
Zhang, Jian (Jiangsu Key Laboratory of Engineering Mechanics, School of Civil Engineering, Southeast University)
Publication Information
Structural Engineering and Mechanics / v.63, no.6, 2017 , pp. 735-742 More about this Journal
Abstract
Steel cables as the most important components are widely used in the certain types of structures such as cable-supported bridges, but the long-span structures may result in an increase in fatigue under high stress and corrosion of steel cables. The traditional steel cable is becoming a more evident hindrance. Fiber Reinforced Polymer (FRP) cables with lightweight, high-strength are widely used in civil engineering, but there is little research in vibrational characteristics of FRP cables, especially on the damping characteristic. This article studied the two methods to evaluate dynamical damping characteristic of basalt FRP(BFRP) and glass FRP(GFRP) cables. First, the vibration tests of the B/G FRP cables with different diameter and different cable force were executed. Second, the cables forces were calculated using dynamic strain, static strain and dynamic acceleration respectively, which were further compared with the measured force. Third, experimental modal damping of each cables was calculated by the half power point method, and was compared with the calculation by Rayleigh damping theory and energy dissipation damping theory. The results indicate that (1) The experimental damping of FRP cables decreases with the increase of cable force, and the trend of experimental damping changes is roughly similar with the theoretical damping. (2) The distribution of modal damping calculated by Rayleigh damping theory is closer to the experimental results, and the damping performance of GFRP cables is better than BFRP cables.
Keywords
cable force; damping ratio; B/GFRP cable; long-gauge strain; vibration test;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 Caetano, E. (2007), Cable Vibrations in Cable-stayed Bridges, IABSE, Zurich, Switzerland
2 Li, S.Z. and Wu, Z.S. (2007), "A non-baseline algorithm for damage locating in flexural structures using dynamic distributed macrostrain responses", Earthq. Eng. Struct. Dyn., 36(9), 1109-1125.   DOI
3 Nabil, F.G. (2000), "Response of CFRP prestressed concrete bridges under static and repeated loadings", PCI J., 15(6), 84-102.
4 Ren, W.X., Chen, G. and Hu, W.H. (2005a), "Empirical formulas to determine cable tension using fundamental frequency", Struct. Eng. Mech., 20(3), 363-380.   DOI
5 Russell, J.C. and Lardner, T.J. (1998), "Experimental determination of frequencies and tension for elastic cables", J. Eng. Mech., 124(10), 1067-1072.   DOI
6 Upadhyay, A. and Kalyanaraman, V. (2010), "Optimum design of FRP box-girder bridges", Struct. Eng. Mech., 35(5), 539-557.   DOI
7 Wang, X. and Wu, Z.S. (2010), "Modal damping evaluation of hybrid FRP cable with smart dampers for long-span cable-stayed bridges", Compos. Struct., 93(4), 1231-1238.   DOI
8 Wu, W.J. and Cai, C.S. (2010), "Cable vibration control with a semiactive MR damper-numerical simulation and experimental verification", Struct. Eng. Mech., 34(5), 611-623.   DOI
9 Wu, Z., Wang, X. and Wu, G. (2009), "Basalt FRP composite reinforcements in infrastructure", Proceedings of the 17th Annual Int. Conf. on Composites/ Nano Engineering (ICCE-17), International Conference on Composites/ Nano Engineering (ICCE), New Orleans
10 Xia, Q., Cheng, Y.Y., Zhang, J. and Zhu, F.Q. (2017), "In-service condition assessment of a long-span suspension bridge using temperature-induced strain data", J. Bridge Eng., 22(3), 04016124   DOI
11 Xie, X., Zhang, H. and Shen, Y.G. (2008), "Study on characteristics of modal damping of steel and CRP stay cables", Ene. Mech., 25(3), 151-157.
12 Zhang, J., Tian, Y.D., Yang, C.Q., Wu, B.T., Wu, Z.S., Wu, G., Zhang, X. and Zhou, L.M. (2017), "Vibration and deformation monitoring of a long-span rigid-frame bridge with distributed long-gauge sensors", 30(2), B4016014   DOI
13 Yamaguchi, H. and Ito, M. (1997), "Mode-dependence of structural damping in cable-stayed bridges", J. Wind Eng. Indus. Aerodyn., 72, 289-300.   DOI
14 Yang, Y.Q., Wang, X. and Wu, Z.S. (2015), "Experimental study of vibration characteristics of FRP cables for long-span cable-stayed bridges", J. Bridge Eng., 20(4), 04014074.   DOI
15 Ye, X.W., Dong, C.Z. and Liu, T. (2016), "Force monitoring of steel cables using vision-based sensing technology: methodology and experimental verification", Smart Struct. Syst., 18(3), 585-599.   DOI
16 Ye, X.W., Su, Y.H. and Han, J.P. (2014), "Structural health monitoring of civil infrastructure using optical fiber sensing technology: a comprehensive review", Scientif. World J., 2014, Article ID 652329, 1-11.
17 Zhang, J., Cheng, Y., Xia, Q. and Wu, Z. (2016), "Change localization of a steel-stringer bridge through long-gauge strain measurements", J. Bridge Eng., 21(3), 04015057.   DOI
18 Yamaguchi, H. and Adhikari, R. (1995), "Energy-based evaluation of modal damping in structural cables with and without damping treatment", J. Sound Vib., 181(1), 71-83.   DOI
19 Cheng, L.J. and Karbhari, V.M. (2006), "Design approach for a FRP structural formwork based steel-free modular bridge system", Struct. Eng. Mech., 24(5), 561-584.   DOI
20 Chan, T.H.T., Yu, L., Ni, Y.Q., Liu, S.Y., Chung, W.H. and Cheng, L.K. (2006), "Fiber brag grating sensors for structural health monitoring of Tsing Ma Bridge: background and experimental observation", Eng. Struct., 28(5), 648-584.   DOI
21 Clough, R.W. and Penzien, J. (1993), Dynamics of Structures, 2nd Editon, McGraw-Hill, New York, NY, USA.
22 EI Kady, H.M., Arockiasamy, M., Samaan, S. Bahie-Eldeen, Y., Bakhoum, M.M., and EI Gammal, M.A. (1999), "Damping characteristics of carbon fiber composite cables for application in cable-stayed bridges", Cable-Stayed Bridges-Past, Present and Future, Proceedings of IABSE Conference, Malmo, Sweden, October.
23 Fujino, Y. and Susumpow, T. (2007), "An experimental study on active control of in-plane cable vibration by axial support motion", Earthq. Eng. Struct. Dyn., 23(12), 1283-97.   DOI
24 Irvine, H.M. and Caughey, T.K. (1974), "The linear theory of free vibration of a suspended cable", Proc. R. Soc. London, Ser. A, 3414(1626), 299-315.
25 Kim, S., Park, J. and Kim, H. (2017), "Damping identification and serviceability assessment of a cable-stayed bridge based on operational monitoring data", J. Bridge Eng., 22(3), 04016123   DOI
26 Li, G.Q., Wei, J.B. and Zhang, K.Y. (2009), "Theoretical and experimental study on cable tension estimation by vibration method accounting for rotational end restraints", J. Build. Struct., 30(5), 220-226.
27 Li, H. and Ou, J.P. (2015), "The state of the art in structural health monitoring of cable-stayed bridges", J. Civil Struct. Hlth. Monit., 6(1), 43-67.