- Volume 13 Issue 2
DOI QR Code
Collapse simulations of a long span transmission tower-line system subjected to near-fault ground motions
- Tian, Li ;
- Pan, Haiyang ;
- Ma, Ruisheng ;
- Qiu, Canxing
- Received : 2017.06.08
- Accepted : 2017.09.05
- Published : 2017.08.25
Observations from past strong earthquakes revealed that near-fault ground motions could lead to the failure, or even collapse of electricity transmission towers which are vital components of an overhead electric power delivery system. For assessing the performance and robustness, a high-fidelity three-dimension finite element model of a long span transmission tower-line system is established with the consideration of geometric nonlinearity and material nonlinearity. In the numerical model, the Tian-Ma-Qu material model is utilized to capture the nonlinear behaviours of structural members, and the cumulative damage D is defined as an index to identify the failure of members. Consequently, incremental dynamic analyses (IDAs) are conducted to study the collapse fragility, damage positions, collapse margin ratio (CMR) and dynamic robustness of the transmission towers by using twenty near-fault ground motions selected from PEER. Based on the bending and shear deformation of structures, the collapse mechanism of electricity transmission towers subjected to Chi-Chi earthquake is investigated. This research can serve as a reference for the performance of large span transmission tower line system subjected to near-fault ground motions.
long span transmission tower-line system;collapse simulation;near-fault ground motion;collapse fragility;collapse mechanism
- Alavi, B. and Krawinkler, H. (2004), "Behavior of moment-resisting frame structures subjected to near-fault ground motions", Earthq. Eng. Struct. D., 33(6), 687-706. https://doi.org/10.1002/eqe.369
- Billah, A.M., Alam, M.S. and Bhuiyan, M.R. (2012), "Fragility analysis of retrofitted multicolumn bridge bent subjected to near-fault and far-field ground motion", J. Bridge. Eng., 18(10), 992-1004.
- Bray, J.D. and Rodriguez-Marek, A. (2004), "Characterization of forward-directivity ground motions in the near-fault region", Soil Dyn. Earthq. Eng., 24(11), 815-828. https://doi.org/10.1016/j.soildyn.2004.05.001
- CECS 392-2014 (2014), Code for anti-collapse design of building structures, China Planning Press; Beijing, China. (in Chinese)
- GB 50260-2013 (2013), Code for seismic design of electrical installations, China Architecture & Building Press;Beijing, China. (in Chinese)
- GB 18306-2015 (2015), Seismic ground motion parameters zonation map of china, Standardization Administration of China Press; Beijing, China. (in Chinese)
- Dong, B. and Shen, Z.Y. (1996), "Analysis of damage accumulation for steel tower structure subjected to earthquake", Spec. Struct., 13(3), 30-32. (in Chinese)
- FEMA-P695 (2009), "Quantification of building seismic performance factors", Washington, DC, USA.
- Ghobarah, A., Aziz, T.S. and El-Attar, M. (1996), "Response of transmission lines to multiple support excitation", Eng. Struct., 18(12), 936-946. https://doi.org/10.1016/S0141-0296(96)00020-X
- Hall, J.F., Holmes, W.T. and Somers, P. (1996), "Northridge earthquake of January 17, 1994", Earthquake Engineering Research Institute, California, USA.
- Inaudi, J.A. and Makris, N. (1996), "Time-domain analysis of linear hysteretic damping", Earthq. Eng. Struct. D., 25(6), 529-546. https://doi.org/10.1002/(SICI)1096-9845(199606)25:6<529::AID-EQE549>3.0.CO;2-P
- Kalkan, E. and Kunnath, S.K. (2006), "Effects of fling step and forward directivity on seismic response of buildings", Earthq. spectra, 22(2), 367-390. https://doi.org/10.1193/1.2192560
- Li, H.N., Shi, W.L., Wang, G.X. and Jia, L.G. (2005), "Simplified models and experimental verification for coupled transmission tower-line system to seismic excitations", J. Sound. Vib., 286(3), 565-585.
- Li, H.N., Bai, F.L., Tian, L. and Hao, H. (2011), "Response of a transmission tower-line system at a canyon site to spatially varying ground motions", J. Zhejiang Univ. - SC. A, 12(2), 103-120.
- Li, S., Zhang, F. and Wang, J.Q. (2017), "Effects of near-fault motions and artificial pulse-type ground motions on super-span cable-stayed bridge systems", J. Bridge. Eng., 22(3).
- Liao, W.I., Loh, C.H. and Wan, S. (2001), "Earthquake responses of RC moment frames subjected to near-fault ground motions", Struct. Des. Tall Spec. Build., 10(3), 219-229. https://doi.org/10.1002/tal.178
- Liao, W.I., Loh, C.H. and Lee, B.H. (2004), "Comparison of dynamic response of isolated and non-isolated continuous girder bridges subjected to near-fault ground motions", Eng. Struct., 26(14), 2173-2183. https://doi.org/10.1016/j.engstruct.2004.07.016
- Lupoi, G., Franchin, P., Lupoi, A. and Pinto, P.E. (2006), "Seismic fragility analysis of structuralsystems", J. Eng. Mech., 132(4), 385-395. https://doi.org/10.1061/(ASCE)0733-9399(2006)132:4(385)
- NCREE (1999), "Investigation Report of Chi-Chi Earthquake", National Center for Research on Earthquake Engineering, Taiwan.
- Phan, V., Saiidi, M.S. and Anderson, J. (2007), "Near-fault ground motion effects on reinforced concrete bridge columns", J. Eng. Mech., 133(7), 982-989.
- Rota, M., Penna, A. and Magenes, G. (2010), "A methodology for deriving analytical fragilitycurves for masonry buildings based on stochastic nonlinear analyses", Eng. Struct., 32(5), 1312-1323. https://doi.org/10.1016/j.engstruct.2010.01.009
- Shinozuka, M. (1995), "The Hanshin-Awaji earthquake of January 17, 1995 Performance of life lines", Report NCEER-95-0015, NCEER.
- Tian, L., Gai, X., Qu, B., Li, H.N. and Zhang, P. (2016a), "Influence of spatial variation of ground motions on dynamic responses of supporting towers of overhead electricity transmission systems: an experimental study", Eng. Struct., 128, 67-81. https://doi.org/10.1016/j.engstruct.2016.09.010
- Tian, L., Ma, R.S., Li, H.N. and Wang, Y. (2016b), "Progressive collapse simulation of power transmission tower-Line system under extremely strong earthquake", J. Struct. Stab. D., 16(1), 1-21.
- Tian, L., Ma, R.S. and Qu, B.(2016c), "Development of a nonlinear material model for steel members under cyclic axial loading", Technical Report No. 2016-2, Shandong University, Jinan, China.
- Tian, L., Gai, X. and Qu, B. (2017a), "Shake table tests of steel towers supporting extremely long-span electricity transmission lines under spatially correlated ground motions", Eng. Struct., 132, 791-807. https://doi.org/10.1016/j.engstruct.2016.11.068
- Tian, L., Ma, R.S., Pan, H.Y., Qiu, C.X and Li, W.F. (2017b), "Progressive collapse analysis of long-span transmission tower-line system under multi-component seismic excitations", Adv. Struct. Eng., 1-13.
- Wu, G., Zhai, C.H., Li, S. and Xie, L,L. (2014), "Effects of near-fault ground motions and equivalent pulses on Large Crossing Transmission Tower-line System", Eng. Struct., 77, 161-169. https://doi.org/10.1016/j.engstruct.2014.08.013
- Zhang, Z.Y., Zhao, B. and Cao, W.W. (2008), "Investigation and preliminary analysis of damages on the power grid in the Wenchuan Earthquake of M8.0", Electric Pow. Technol. Economics, 20(4), 1-4. (in Chinese)
- Zhi, X.D., Nie, G.B., Fan, F. and Shen, S.Z. (2012), "Vulnerability and risk assessment of single-layer reticulated domes subjected to earthquakes", J. Struct. Eng., 138(12), 1505-1514. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000589
Supported by : National Natural Science Foundation of China