Empirical Evaluation of Cyclic Behavior of Rotational Friction Dampers with Different Metal Pads

Document Type : Article


1 Department of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran

2 Department of Civil Engineering, Shahid Behesht i University, Tehran, Iran

3 Department of Mechanical Engineering, SAAB Steel Development Co., Qazvin, Iran.


.Passive energy dissipation devices have been widely used to reduce the maximum responses of structures under seismic loading. Recently, different types of passive energy devices are developed to improve seismic behavior of structures in new construction and retrofitting existing structures. Friction dampers are displacement dependent passive devices which dissipate energy using friction mechanism. Many different types of friction dampers have been proposed in recent years. This paper aims at investigating the cyclic behavior of a rotational friction damper with different friction pads under cyclic loading. To this end, experimental analysis is performed on a friction damper with four friction materials. The tested damper consists of steel plates, friction pads, preloaded bolts and hard washers. Cyclic loads are applied on damper specimens with four friction pads include: aluminum, galvanized steel, stainless steel, steel (St-37). The experimental results are studied according to FEMA-356 acceptance criteria to select the appropriate friction materials as friction pads for using in the friction damper.


Main Subjects

1. Soong, T.T. and Dargush, G.F. Passive Energy Dissipation
Systems in Structural Engineering, John Wiley
& Sons Chichester, ISBN 0-471-96821-8 (1997).
2. Kelly, J.M., Skinner, R.I., and Heine, A.J. Mechanisms
of energy absorption in special devices for use
in earthquake-resistant structures", J. Earthq. Eng.,
5(3), pp. 63-88 (1972).
3. Latour, M., Piluso, V., and Rizzano, G. Experimental
analysis on friction materials for supplemental damping
Devices", Construct. Build. Mat., 65, pp. 159-176
4. Pall, A. and Marsh, C. Response of friction damped
braced frames", J. Struct. Div., 108(6), pp. 1313-1323
5. Constantinou, M.C., Mokha. A., and Reinhorn, A.M.
on bearings in base isolation, II: modeling", J.
Struct. Eng., 116(2), pp. 455-74 (1990).
6. Tremblay, R. and Stiemer, S. Energy dissipation
through friction bolted connections in concentrically
braced steel frames", ATC 17-1, Seminar Seismic
Isolation, pp. 557-568 (1993).
7. Li, C. and Reinhorn, A.M. Experimental and analytical
investigation of seismic retro t of structures with
supplemental damping: Part II - Friction devices",
Technical Report NCEER-950009, Bu alo (NY): State
University of New York at Bu alo (1995).
8. Mualla, I. and Beleve, B. Seismic response of steel
frames equipped with a new friction damper device
under earthquake excitation", J. Eng. Struct., 24(3),
pp. 365-371 (2002).
9. Colajannio, P. and Papia, M. Seismic response of
braced frames with and without friction dampers",
Eng. Struct., 17, pp. 129-40 (1995).
10. Xu, Y.L. and Ng, C.L. Seismic response control of
a building complex utilizing passive friction damper",
Experimental Investigation Earthq. Eng. and Struct.
Dyn., 35, pp. 657-677 (2006).
11. Lee, S.H., Park, J.H., Lee, S.K., and Min, K.W.
Allocation and slip load of friction dampers for a
seismically excited building structure based on story
shear force distribution", Eng. Struct., 30, pp. 930-40
12. Vaseghi, A., Navayinia, B., and Navaei, S. Evaluation
of performance of eccentric braced frame with friction
damper", Struct. Eng. Mech., 39(5), pp. 717-732
13. Papadopoulos, P.K., Salonikios, T.N., Dimitrakis,
S.A., and Papadopoulos, A.P. Experimental investigation
of a new steel friction device with link element
for seismic strengthening of structures", Struct. Eng.
Mech., 46, p. 4 (2013).
14. Montuori, R., Nastri, E., and Piluso, V. Theory
of plastic mechanism control for the seismic design
of braced frames equipped with friction dampers",
Mechanics Research Communications, 58, pp. 112-123
15. Maleki, S. and Mahjoubi, S. Dual-pipe damper", J.
Construct. Steel Res., 85, pp. 81-91 (2013).
16. Cheng, Ch. and Chen, F. Seismic performance of a
rocking bridge pier substructure with frictional hinge
dampers", Smart. Struct. Sys., 14(4), pp. 501-516
17. Sanati, M., Khadem, S.E., Mirzabagheri, S., Sanati,
H., and Khosravieh, M.Y. Performance evaluation of
a novel rotational damper for structural reinforcement
steel frames subjected to lateral excitations", Earthq.
Eng and. Eng., 13, pp. 75-84 (2014).
18. Mirzabagheri, S., Sanati, M., Aghakouchak, A.A., and
Khadem, S. Experimental and numerical investigation
of rotational friction dampers with multi units in
steel frames subjected to lateral excitation", Arch of.
Civil. Mech. Eng., 15, pp. 479-491 (2015).