Determining the Optimal Slip Load Pattern of Pall Friction Dampers considering Soil-Structure interaction

Document Type : Research Article

Authors

1 Babol Noshirvani University of Technology, Babol, Iran

2 Faculty of Civil Engineering/Assistant Professor

3 Civil eng. Babol Noshirvani University of Technology

Abstract

In engineering designs, structural analysis is generally performed assuming a rigid base. While introducing the effect of structural substrate flexibility on the response and dynamic properties of structures is important. Introducing different solutions to reduce the response of the structure against dynamic forces is another important issue in engineering designs. In this paper, the passive Pall friction damper system has been used for this purpose. In the researches that have been done so far, various optimization methods have been used for the optimal design of friction dampers, but in most of these methods, the effect of soil-structure interaction has not been considered for friction dampers, while in earthquake soil-structure interactions are important. One of the main objectives of this study is to investigate the effect of soil-structure interaction on the optimization of friction dampers. The actual forces and displacements of a structure due to free-surface seismic movements can be determined by considering the effects of soil-structure interaction. In this regard, in this paper, two-dimensional frames of 4, 8, and 12 floors equipped with dampers were analyzed in nonlinear structural analysis software under seven accelerometers using the nonlinear time history method once, considering the effect of soil-structure interaction and introducing 3 Different lateral loading patterns and again without this effect. The results show that considering this issue in terms of cumulative triangular slip load pattern has increased the loss of earthquake input energy. Also, depending on the type of load pattern, the applied record and the height of the structure, a decrease has been observed, which is mentioned in the results section.

Keywords

Main Subjects


[1] B.A. Bolt, Seismic input motions for nonlinear structural analysis, ISET journal of earthquake technology, 41(2) (2004) 223-232.
[2] S. Akhondzade, A.H. Hasaniye, M.R. Mashayekhi, Investigation of active algorithm in structures equipped with tuned mass damper (TMD), in, Pardisan Higher Education Institute, 3282 (In Persian), Babolsar, 1391.
[3] C. Pasquin, N. Leboeuf, R.T. Pall, A. Pall, Friction dampers for seismic rehabilitation of Eaton’s building, Montreal, in, 2004, pp. 1-2.
[4] L.M. Moreschi, M.P. Singh, Design of yielding metallic and friction dampers for optimal seismic performance, Earthquake engineering & structural dynamics, 32(8) (2003) 1291-1311.
[5] J. Vaseghi, S. Navaei, B. Navayinia, F. Roshantabari, A parametric assessment of friction damper in eccentric braced frame, International Journal of Civil and Environmental Engineering, 3(10) (2009) 361-365.
[6] L. Tirca, J.D. Morales, G.L. Guo, L. Chen, Optimal design of friction dampers for multistorey buildings, in, 2010.
[7] J. Vaseghi Amiri, H. Rahimi, Investigation of Optimal Slip Percentage of Pall Friction Dampers in Steel Buildings Improved with Dampers Based on Energy Concepts, in, Iranian Association of Steel Structures (In Persian), Tehran, 1391.
[8] M. Mohamadniya, J. Vaseghi Amiri, Investigation of the effect of removing Pall friction dampers in steel frame floors with cross bracing with constant slip force distribution, in, Tabriz Association of Architects (In Persian), Tabriz, 1391.
[9] L.F.F. Miguel, L.F.F. Miguel, R.H. Lopez, Robust design optimization of friction dampers for structural response control, Structural Control and Health Monitoring, 21(9) (2014) 1240-1251.
[10] P.H. Sarjou, N. Shabakhty, Effect of the improved pall friction damper on the seismic response of steel frames, Engineering, Technology & Applied Science Research, 7(4) (2017) 1833-1837.
[11] F. Taiyari, F.M. Mazzolani, S. Bagheri, Damage-based optimal design of friction dampers in multistory chevron braced steel frames, Soil Dynamics and Earthquake Engineering, 119 (2019) 11-20.
[12] M. Moradi, H. Tavakoli, Assessment of Energy Balance on Steel Structure with Pall Damper under Blast Loading, Amirkabir Journal of Civil Engineering, 52(10) (2019) 2-2.
[13] V. Barzegar, S. Laflamme, A. Downey, M. Li, C. Hu, Numerical evaluation of a novel passive variable friction damper for vibration mitigation, Engineering Structures, 220 (2020) 110920-110920.
[14] H. Jarrahi, A. Asadi, M. Khatibinia, S. Etedali, Optimal design of rotational friction dampers for improving seismic performance of inelastic structures, Journal of Building Engineering, 27 (2020) 100960-100960.
[15] I.H. Mualla, Parameters influencing the behavior of a new friction damper device, in, International Society for Optics and Photonics, 2000, pp. 64-74.
[16] N. Nabid, I. Hajirasouliha, M. Petkovski, A practical method for optimum seismic design of friction wall dampers, Earthquake Spectra, 33(3) (2017) 1033-1052.
[17] E. Zamani Beydokhti, A.M. Taghavi, H. Kouhestanian, Probabilistic seismic Assessment of RC buildings with considering the effect of soil structure interaction, Amirkabir Journal of Civil Engineering, 53(5) (2021) 21-21.
[18] A.H. Jafarieh, M.A. Ghannad, The Effects of Nonlinear Behavior of Soil and Foundation Uplift on Seismic Response of Inelastic SDOF Structures, Journal of Structural and Construction Engineering,  (2019).