- Volume 4 Issue 2
DOI QR Code
A method for earthquake response analysis of tall flexible structure
- Liu, Tielin (School of Civil Engineering, Dalian University of Technology) ;
- Jiang, Yingchun (School of Civil Engineering, Dalian University of Technology) ;
- Luan, Yu (School of Civil Engineering, Dalian University of Technology)
- Received : 2011.05.09
- Accepted : 2012.03.12
- Published : 2013.02.25
The earthquake responses are studied for the tall flexible structures such as TV towers when the vertical eccentricities between the discrete nodes and the corresponding centroids of investigated lumps are considered. In practical analyses, the tall flexible structures can be made into a spatial-discrete system of some certain length of beam elements with different lengths and cross-sectional areas. These elements are used to construct the investigated lumps in this paper. The different cross-sectional areas and the different lengths of two adjacent elements lead to the appearance of vertical eccentricity between the discrete node and the centroid of investigated lump within the same investigated lump. Firstly, the governing equations are established for a typical investigated lump. Secondly, the calculating formulae of the forces and moments acting on the investigated lump are derived and provided. Finally the new dynamic equilibrium equations with modified mass matrix and assemblage of stiffness matrix have been derived for the stick MDOF model based on beam theory when the existing vertical eccentricities are considered. Numerical results demonstrate that these vertical eccentricities should be considered in order to obtain the accurate earthquake responses for the tall flexible structures.
tall flexible structure;earthquake response;investigated lump;vertical eccentricity
Supported by : Natural Science Foundation of China
- Akinci, N.O. (2009), "An investigation on seismic resistance of reinforced concrete industrial chimneys", Proceedings of the 2009 Structures Congress - Don't Mess with Structural Engineers: Expanding Our Role, 964-971.
- Cao, H., Reinhorn, A.M. and Soong, T.T. (1998), "Design of an active mass damper for a tall TV tower in Nanjing, China", Eng. Struct., 20(3), 134-143. https://doi.org/10.1016/S0141-0296(97)00072-2
- Feng, M.Q., Kim, J.M. and Xue, H. (1998), "Identification of a dynamic system using ambient vibration measurements", J. Appl. Mech. Trans. ASME, 65(4), 1010-1021. https://doi.org/10.1115/1.2791895
- Feng, Maria Q. and Zhang, R. (1997), "Wind-induced vibration characteristics of Nanjing TV tower", Int. J. Nonlinear Mech., 32(4), 693-706. https://doi.org/10.1016/S0020-7462(96)00095-9
- Gould, P.L. and Huang, W. (2006), "Higher mode effects in the nonlinear static analysis of a collapsed chimney", Proceedings of the 2006 Structures Congress and Exposition, 19.
- Gould, P.L. and Huang, W. (2009), "Nonlinear analysis of a collapsed reinforced concrete chimney", Proceedings of the 2009 Structures Congress - Don't Mess with Structural Engineers: Expanding Our Role, 994-999.
- Goyal, A. and Maiti, M.K. (1997), "Inelastic seismic resistance of reinforced concrete stack-like structures", Earthq. Eng. Struct. D., 26(5), 501-513. https://doi.org/10.1002/(SICI)1096-9845(199705)26:5<501::AID-EQE665>3.0.CO;2-L
- Huang, W. and Gould, P.L. (2007), "3-D pushover analysis of a collapsed reinforced concrete chimney", Finite Elem. Anal. Des., 43(11-12), 879-887. https://doi.org/10.1016/j.finel.2007.05.005
- Huang, W., Gould, P.L., Martinez, R. and Johnson, G.S. (2004), "Non-linear analysis of a collapsed reinforced concrete chimney", Earthq. Eng. Struct. D., 33(4), 485-498. https://doi.org/10.1002/eqe.362
- Halabian, A.M., Elnaggar, M.H. and Vickery, B.J. (2002), "Nonlinear seismic response of reinforced-concrete free-standing towers with application to TV towers on flexible foundations", Struct. Des. Tall Build, 11(1), 51-72. https://doi.org/10.1002/tal.190
- Khaloo, A.R., Asadpour, N. and Horr, A.M. (2001), "Full dynamic analysis of Tehran telecommunication tower; linear and nonlinear responses", Struct. Des. Tall Spec. Build., 10(4), 263-281. https://doi.org/10.1002/tal.184
- Kolsky, H. (1953), Stress wave in solids, Oxford, Clarendon Press, 71.
- Reinhorn, A.M., Soong, T.T. and Cao, H. (1995), "Preliminary evaluation of wind induced response ofNanjing TV tower", Report of US/PRC Coordination Program, State University of New York at Buffalo,Buffalo, NY.
- Wu, J.R. and Li, Q.S. (2004), "Finite element model updating for a high-rise structure based on ambient vibration measurements", Eng. Struct., 26(7), 979-990. https://doi.org/10.1016/j.engstruct.2004.03.002
- Wu, J.C. and Yang, J.N. (2000), "LQG control of lateral-torsional motion of Nanjing TV transmission tower", Earthq. Eng. Struct. D., 29(8), 1111-1130. https://doi.org/10.1002/1096-9845(200008)29:8<1111::AID-EQE957>3.0.CO;2-R
- Wilson, J.L. (2003), "Earthquake response of tall reinforced concrete chimneys", Eng. Struct., 25(1), 11-24. https://doi.org/10.1016/S0141-0296(02)00098-6
- Yahyai, M., Rezayibana, B. and Daryan, A.S. (2009), "Nonlinear seismic response of milad tower using finite element model", Struct. Des. Tall Spec. Build., 18, 877-890. https://doi.org/10.1002/tal.468
- Explicit fiber element and its application to piers under multipulse near-fault earthquake motion pp.15417794, 2018, https://doi.org/10.1002/tal.1547