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http://dx.doi.org/10.12989/sss.2021.27.5.819

Energy dissipation by friction for sliding blocks subjected to near-fault seismic base motion  

Mendoza, Pablo M. Barlek (Instituto de Estructuras, Universidad Nacional de Tucuman)
Ambrosini, Daniel (Universidad Nacional de Cuyo, Facultad de Ingenieria)
Luccioni, Bibiana M. (Instituto de Estructuras, Universidad Nacional de Tucuman)
Publication Information
Smart Structures and Systems / v.27, no.5, 2021 , pp. 819-836 More about this Journal
Abstract
The objective of this study was to determine friction ratios that maximize energy dissipation on a seismic damper. The aforementioned friction damper basically consists of mass blocks that are able to slide on a flat surface. To carry out this analysis, a numerical-experimental approach was used. Firstly, the theoretical background and equations of motion for a SDOF system consisting of a mass supported on a flat surface with friction are introduced. Special emphasis is made on the fundamentals of stick-slip motion as well as energy considerations. Secondly, experimental studies carried out on a shaking table with harmonic and seismic records are described. These tests consisted of lead blocks contained on a U-shaped channel type aluminum section with its open end facing upwards. This configuration allowed blocks to slide solely in the direction of the base motion. Five different types of contact interfaces were considered to determine potential friction coefficients for the damper's design. Additionally, computational models based on rigid-body dynamics are presented. Numerical results were satisfactory particularly when comparing model's dissipated energy with empirical results. An analysis was carried out by calculating dissipated energy for the experimentally-calibrated models with varying friction ratios. For this purpose, eight near-fault seismic records were selected. Intervals with friction coefficients that maximize energy dissipation are proposed for each record. Finally, relationships between the computed friction ratios and register's peak ground acceleration (PGA) and root mean square acceleration (RMS) are discussed.
Keywords
friction; stick-slip motion; energy dissipation; near-fault earthquakes;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Etedali, S., Akbari, M. and Seifi, M. (2019), "MOCS-based optimum design of TMD and FTMD for tall buildings under near-field earthquake including SSI effects", Soil Dyn. Earthq. Eng., 119(2019), 36-50. https://doi.org/10.1016/j.soildyn.2018.12.027   DOI
2 Yang, J., Li, J.B. and Lin, G. (2006), "A simple approach to integration of acceleration data for dynamic soil-structure interaction analysis", Soil Dyn. Earthq. Eng., 26(2006), 725-734. https://doi.org/10.1016/j.soildyn.2005.12.011   DOI
3 Zahraei, S.M., Moradi, A. and Moradi, M. (2013), "Using Pall friction dampers for seismic retrofit of a 4-story steel building in Iran", In: Topics in Dynamics of Civil Structures, Volume 4, Springer, New York, NY, USA.
4 Lee, S.K., Park, J.H., Moon, B.W., Min, K.W., Lee, S.H. and Kim, J. (2008), "Design of a bracing-friction damper system for seismic retrofitting", Smart Struct. Syst., Int. J., 4(5), 685-696. https://doi.org/10.12989/sss.2008.4.5.685   DOI
5 Lopez, I., Busturia, J. and Nijmeijer, H. (2004), "Energy dissipation of a friction damper", J. Sound Vib., 278(2004), 539-561. https://doi.org/10.1016/j.jsv.2003.10.051   DOI
6 Nims, D.K., Richter, P.J. and Bachman, R.E. (1993), "The use of the energy dissipating restraint for seismic hazard mitigation", Earthq. Spectra, 9(3), 467-489. https://doi.org/10.1193/1.1585725   DOI
7 Ontiveros-Perez, S.P., Miguel, L.F.F. and Riera, J.D. (2019), "Reliability-based optimum design of passive friction dampers in buildings in seismic regions", Eng. Struct., 190, 276-284. https://doi.org/10.1016/j.engstruct.2019.04.021   DOI
8 Shen, S., Pan, P., Sun, J., Gong, R., Wang, H. and Li, W. (2017), "Development of a double-sliding friction damper (DSFD)", Smart Struct. Syst., Int. J., 20(2), 151-162. https://doi.org/10.12989/sss.2017.20.2.151   DOI
9 Ozbulut, O. and Silwal, B. (2016), "Performance assessment of buildings isolated with S-FBI system under near-fault earthquakes", Smart Struct. Syst., Int. J., 17(5), 709-724. https://doi.org/10.12989/sss.2016.17.5.709   DOI
10 Ricciardelli, F. and Vickery, B.J. (1999), "Tuned vibration absorbers with dry friction damping", Earthq. Eng. Struct. Dyn., 28(7), 707-723. https://doi.org/10.1002/(SICI)1096-9845 (199907)28:7<707::AID-EQE836>3.0.CO;2-C   DOI
11 Trifunac, M. and Brady, A. (1975), "A study on the duration of strong earthquake ground motion", Bull. Seismol. Soc. Am., 65(3), 581-626.
12 Uang, C.M. and Bertero, V. (1990), "Evaluation of seismic energy in structures", Earthq. Eng. Struct. Dyn., 19(1990), 77-90. https://doi.org/10.1002/eqe.4290190108   DOI
13 Jiang, J., Ho, S.C.M, Markle, N.J., Wang, N. and Song, G. (2019), "Design and control performance of a frictional tuned mass damper with bearing-shaft assemblies", J. Vib. Control, 25(12), 1812-1822. https://doi.org/10.1177/1077546319832429   DOI
14 Pall, A.S., Marsh, C. and Fazio, P. (1980), "Friction joints for seismic control of large panel structures", J. Prestress. Concrete Inst., 25(6), 38-61. https://doi.org/10.15554/pcij.11011980.38.61   DOI
15 Kim, S.Y. and Lee, C.H. (2019), "Peak response of frictional tuned mass damper optimally designed to white noise base acceleration", Mech. Syst. Signal Process., 117(2019), 319-332. https://doi.org/10.1016/j.ymssp.2018.08.003   DOI
16 Arias, A. (1970), "A measure of earthquake intensity", In: Seismic Design for Nuclear Power Plants (Ed.: Hansen, R.J.), Massachusetts Institute of Technology Press, Cambridge, MA, USA.
17 Calvi, P.M. and Calvi, G.M. (2018), "Historical development of friction-based seismic isolation systems", Soil Dyn. Earthq. Eng., 106, 14-30. https://doi.org/10.1016/j.soildyn.2017.12.003   DOI
18 Den Hartog, J.P. (1931), "Forced vibrations with combined Coulomb and viscous friction", Transact. Am. Soc. Mech. Engr., 53(1931), 107-115.
19 Hundal, M.S. (1979), "Response of a base excited system with Coulomb and viscous friction", J. Sound Vib., 64(1979), 371-378. https://doi.org/10.1016/0022-460X(79)90583-2   DOI
20 Inaudi, J.A. and Kelly, J.M. (1995), "Mass damper using friction-dissipating devices", J. Eng. Mech., 121(1), 142-149. https://doi.org/10.1061/(ASCE)0733-9399(1995)121:1(142)   DOI
21 Shahbazi, P. and Taghikhany, T. (2017), "Sensitivity analysis of variable curvature friction pendulum isolator under near-fault ground motions", Smart Struct. Syst., Int. J., 20(1), 23-33. https://doi.org/10.12989/sss.2017.20.1.023   DOI
22 ANSYS, I. (2010), Theory reference, Canonsburg: ANSYS, Inc.