Browse > Article
http://dx.doi.org/10.12989/sem.2022.82.3.355

Dynamic behavior of intake tower considering hydrodynamic damping effect  

Uddin, Md Ikram (Department of Civil and Environmental Engineering, Kongju National University)
Nahar, Tahmina Tasnim (Department of Civil Engineering, Pabna University of Science and Technology)
Kim, Dookie (Department of Civil and Environmental Engineering, Kongju National University)
Kim, Kee-Dong (Department of Civil and Environmental Engineering, Kongju National University)
Publication Information
Structural Engineering and Mechanics / v.82, no.3, 2022 , pp. 355-367 More about this Journal
Abstract
The effect of hydrodynamic damping on intake tower is twofold: one is fluid damping and another is structural damping. Fluid damping can be derived analytically from the governing equation of the fluid-structure-interaction (FSI) problem which yields a very complicated solution. To avoid the complexity of the FSI problem water-tower system can be simplified by considering water as added mass. However, in such a system a reconsideration of structural damping is required. This study investigates the effects of this damping on the dynamic response of the intake tower, where, apart from the "no water (NW)" condition, six other cases have been adopted depending on water height. Two different cross-sections of the tower are considered and also two different damping properties have been used for each case as well. Dynamic analysis has been carried out using horizontal ground motion as input. Finally, the result shows how hydrodynamic damping affects the dynamic behavior of an intake tower with the change of water height and cross-section. This research will help a designer to consider more conservative damping properties of intake tower which might vary depending on the shape of the tower and height of water.
Keywords
dynamic response; fluid-structure interaction; hydrodynamic damping; intake-tower; reduced damping ratio;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Nahar, T.T., Rahman, M.M. and Kim, D. (2021), "Damage index based seismic risk generalization for concrete gravity dams considering FFDI", Struct. Eng. Mech., 78(1), 53-66. http://doi.org/10.12989/sem.2021.78.1.053.   DOI
2 Chen, X., Liu, Y., Zhou, B. and Yang, D. (2020), "Seismic response analysis of intake tower structure under near-fault ground motions with forward-directivity and fling-step effects", Soil Dyn. Earthq. Eng., 132, 106098. https://doi.org/10.1016/j.soildyn.2020.106098.   DOI
3 ABAQUS 2016 Documentation (2016), Dassault Systemes Simulia Corporation, http://abaqus.software.polimi.it/v2016/books/hhp/default.htm?startat=pt02ch02s02.html.
4 Alam, J., Kim, D. and Choi, B. (2019), "Seismic risk assessment of intake tower in Korea using updated fragility by bayesian inference", Struct. Eng. Mech., 69(3), 317-326. https://doi.org/10.12989/sem.2019.69.3.317.   DOI
5 Alembagheri, M. (2016), "Dynamics of submerged intake towers including interaction with dam and foundation", Soil Dyn. Earthq. Eng., 84, 108-119. https://doi.org/10.1016/j.soildyn.2016.02.004.   DOI
6 Alembagheri, M. (2017), "Frequency domain analysis of submerged tower-dam dynamic interaction", Soil Mech. Found. Eng., 54(4), 264-275. https://doi.org/10.1007/s11204-017-9468-y.   DOI
7 Chakrabarti, S.K. (1987), Hydrodynamics of Offshore Structures, WIT Press.
8 Millan, M., Young, Y. and Prevost, J. (2009), "Seismic response of intake towers including dam-tower interaction", Earthq. Eng. Struct. Dyn., 38(3), 307-329. https://doi.org/10.1002/eqe.851.   DOI
9 Penzien, J. and Kaul, M. (1972), "Response of offshore towers to strong motion earthquakes", Earthq. Eng. Struct. Dyn., 1(1), 55-68. https://doi.org/10.1002/eqe.4290010106.   DOI
10 Rahman, M. and Bhatta, D. (1993), "Evaluation of added mass and damping coefficient of an oscillating circular cylinder", Appl. Math. Model., 17(2), 70-79. https://doi.org/10.1016/0307-904X(93)90095-X.   DOI
11 Li, Q. and Yang, W. (2013), "An improved method of hydrodynamic pressure calculation for circular hollow piers in deep water under earthquake", Ocean Eng., 72, 241-256. https://doi.org/10.1016/j.oceaneng.2013.07.001.   DOI
12 Shah, C. (2002), "Mesh discretization error and criteria for accuracy of finite element solutions", Proceeding of the 4th ASEAN ANSYS Users Conference, Central Region, Singapore, November.
13 Sumer, B.M. and Fredsoe, J. (1997), Hydrodynamics Around Cylindrical Structures, World Scientific, Singapore.
14 Goyal, A. and Chopra, A.K. (1989), "Simplified evaluation of added hydrodynamic mass for intake towers", J. Eng. Mech., 115(7), 1393-1412. https://doi.org/10.1061/(ASCE)0733-9399(1989)115:7(1393).   DOI
15 Morison, J.R., Johnson, J.W. and Schaaf, S.A. (1950), "The force exerted by surface waves on piles", J. Petrol. Technol., 2(5), 149-154. https://doi.org/10.2118/950149-G.   DOI
16 Deng, Y., Guo, Q., Shah, Y.I. and Xu, L. (2019), "Study on modal dynamic response and hydrodynamic added mass of water-surrounded hollow bridge pier with pile foundation", Adv. Civil Eng., 2019, Article ID 1562753. https://doi.org/10.1155/2019/1562753.   DOI
17 Chopra, A.K. (2011), Dynamics of Structures: Theory and Applications to Earthquake Engineering, Prentice Hall, Upper Saddle River, New Jersey, USA.
18 Cocco, L., Suarez, L.E. and Matheu, E.E. (2010), "Development of a nonlinear seismic response capacity spectrum method for intake towers of dams", Struct. Eng. Mech., 36(3), 321-341. http://doi.org/10.12989/sem.2010.36.3.321.   DOI
19 Daniell, W. and Taylor, C. (2003), "Developing a numerical model for a UK intake tower seismic assessment", Proceedings of the Institution of Civil Engineers-Water and Maritime Engineering., 156(1), 63-72 https://doi.org/10.1680/wame.2003.156.1.63.   DOI
20 Du, X., Wang, P. and Zhao, M. (2014), "Simplified formula of hydrodynamic pressure on circular bridge piers in the time domain", Ocean Eng., 85, 44-53. https://doi.org/10.1016/j.oceaneng.2014.04.031.   DOI
21 Fredsoe, J. and Justesen, P. (1986), "Turbulent separation around cylinders in waves", J. Waterw. Port Coastal Ocean Eng., 112(2), 217-233. https://doi.org/10.1061/(ASCE)0733-950X(1986)112:2(217).   DOI
22 Pirhadi, P. and Alembagheri, M. (2019), "The influence of bridgetower interaction on the dynamic behavior of intake-outlet towers", SN Appl. Sci., 1(12), 1-11. https://doi.org/10.1007/s42452-019-1648-0.   DOI
23 Song, G.S., Min, K.U., Bea, J. and Lee, J. (2018), "Application of hydrodynamic pressure for threedimensional earthquake safety analysis of dam intake towers", J. Earthq. Eng. Soc. Korea, 22(3), 139-147. https://doi.org/10.5000/EESK.2018.22.3.139.   DOI
24 Vidot, A.L., Suarez, L.E., Matheu, E.E. and Sharp, M.K. (2004), "Seismic analysis of intake towers considering multiple-support excitation and soil-structure interaction effects", Report No. ERDC/GSL TR-04-16, U. S. A. C. o. Engineers, Engineer Research and Development Center.
25 Wang, P., Zhao, M. and Du, X. (2018), "Analytical solution and simplified formula for earthquake induced hydrodynamic pressure on elliptical hollow cylinders in water", Ocean Eng., 148, 149-160. https://doi.org/10.1016/j.oceaneng.2017.11.019.   DOI
26 Wang, P., Zhao, M., Du, X., Liu, J. and Chen, J. (2018), "Simplified evaluation of earthquake-induced hydrodynamic pressure on circular tapered cylinders surrounded by water", Ocean Eng., 164, 105-113. https://doi.org/10.1016/j.oceaneng.2018.06.048.   DOI
27 USACE (2003), Structural Design and Evaluation of Outlet Works, USACE, Washington, DC.
28 Wang, P., Zhao, M. and Du, X. (2019), "Simplified formula for earthquake-induced hydrodynamic pressure on round-ended and rectangular cylinders surrounded by water", J. Eng. Mech., 145(2), 04018137. https://doi.org/10.1061/(ASCE)EM.1943-7889.0001567.   DOI
29 Westergaard, H.M. (1933), "Water pressures on dams during earthquakes", Tran. Am. Soc. Civil Eng., 98(2), 418-433. https://doi.org/10.1061/TACEAT.0004496.   DOI
30 Yang, W. and Li, Q. (2013), "The expanded Morison equation considering inner and outer water hydrodynamic pressure of hollow piers", Ocean Eng., 69, 79-87. https://doi.org/10.1016/j.oceaneng.2013.05.008.   DOI
31 Goyal, A. and Chopra, A.K. (1989), "Earthquake analysis of intake-outlet towers including tower-water-foundation-soil interaction", Earthq. Eng. Struct. Dyn., 18(3), 325-344. https://doi.org/10.1002/eqe.4290180303.   DOI
32 Goyal, A. and Chopra, A.K. (1989), "Earthquake analysis and response of intakeoutlettowers", Report, Earthquake Engrg. Res. Ctr., Univ. of California, Berkeley, CA, USA. (in Press)
33 Liaw, C.Y. and Chopra, A.K. (1974), "Dynamics of towers surrounded by water", Earthq. Eng. Struct. Dyn., 3(1), 33-49. https://doi.org/10.1002/eqe.4290030104.   DOI
34 Jiang, H., Wang, B., Bai, X., Zeng, C. and Zhang, H. (2017), "Simplified expression of hydrodynamic pressure on deepwater cylindrical bridge piers during earthquakes", J. Bridge Eng., 22(6), 04017014. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001032.   DOI