Earthquakes and Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Performance evaluation of a rocking steel column base equipped with asymmetrical resistance friction damper

  • Chung, Yu-Lin (Department of Architecture, National Cheng Kung University) ;
  • Du, Li-Jyun (Department of Civil Engineering, National Kaohsiung University of Science and Technology) ;
  • Pan, Huang-Hsing (Department of Civil Engineering, National Kaohsiung University of Science and Technology)
  • Received : 2019.01.15
  • Accepted : 2019.04.14
  • Published : 2019.07.25
⟨ Previous Next ⟩

Abstract

A novel asymmetrical resistance friction damper (ARFD) was proposed in this study to be applied on a rocking column base. The damper comprises multiple steel plates and was fastened using high-strength bolts. The sliding surfaces can be switched into one another and can cause strength to be higher in the loading direction than in the unloading direction. By combining the asymmetrical resistance with the restoring resistance that is generated due to an axial load on the column, the rocking column base can develop a self-centering behavior and achieve high connection strength. Cyclic tests on the ARFD proved that the damper performs a stable asymmetrical hysteretic loop. The desired hysteretic behavior was achieved by tuning the bolt pretension force and the diameter of the round bolt hole. In this study, full-scale, flexural tests were conducted to evaluate the performance of the column base and to verify the analytical model. The results indicated that the column base exhibits a stable self-centering behavior up to a drift angle of 4%. The decompression moment and maximum strength reached 42% and 88% of the full plastic moment of the section, respectively, under a column axial force ratio of approximately 0.2. The strengths and self-centering capacity can be obtained by determining the bolt pretension force. The analytical model results revealed good agreement with the experimental results.

Keywords

Acknowledgement

Supported by : Ministry of Science and Technology of Taiwan

References

  1. AISC (2010), Seismic Provisions for Structural Steel Buildings, American Institute of Steel Construction, Chicago, IL, USA.
  2. Alfredo, R.S., Sonia, E.R., Eden, B., Juan, B. and Mario, D.L.T. (2016), "Seismic response of complex 3D steel buildings with welded and post-tensioned connections", Earthq. Struct., 11(2), 217-243. http://dx.doi.org/10.12989/eas.2016.11.2.217.
  3. Borzouie, J., MacRae, G.A., Chase, J.G., Rodgers, G.W. and Clifton, G.C. (2015), "Experimental studies on cyclic performance of column base weak axis aligned asymmetric friction connection", J. Constr. Steel Res., 112, 252-262. https://doi.org/10.1016/j.jcsr.2015.05.007.
  4. Chanchi, J.C., Macrae, G.A., Chase, J.G., Rodgers, G.W. and Clifton, C.G. (2012), "Behaviour of asymmetrical friction connections using different Shim materials", New Zealand Society for Earthquake Engineering (NZSEE) Conference.
  5. Chen, S.J., Yeh, C.H. and Chu, J.M. (1996), "Ductile steel beamto-column connections for seismic resistance", J. Struct. Eng., 122(11), 1292-1299. https://doi.org/10.1061/(ASCE)0733-9445(1996)122:11(1292).
  6. Chi, H. and Liu, J. (2012), "Seismic behavior of post-tensioned column base for steel self-centering moment resisting frame", J. Constr. Steel Res., 78, 117-130. https://doi.org/10.1016/j.jcsr.2012.07.005.
  7. Chou, C.C. and Chen, J.H. (2011), "Analytical model validation and influence of column bases for seismic responses of steel post-tensioned self-centering MRF systems", Eng. Struct., 33(9), 2628-2643. https://doi.org/10.1016/j.engstruct.2011.05.011.
  8. Chou, C.C., Wang, Y.C. and Chen, J.H. (2008), "Seismic design and behavior of post-tensioned steel connections including effects of a composite slab", Eng. Struct., 30(11), 3014-3023. https://doi.org/10.1016/j.engstruct.2008.04.013.
  9. Chou, C.C., Tsai, K.C., Wang, Y.Y. and Jao, C.K. (2010), "Seismic rehabilitation performance of steel side plate moment connections", Earthq. Eng. Struct. Dyn., 39(1), 23-44. https://doi.org/10.1002/eqe.931.
  10. Christopoulos, C., Filiatrault, A., Uang, C.M. and Folz, B. (2002), "Posttensioned energy dissipating connections for momentresisting steel frames", J. Struct. Eng., 128(9), 1111-1120. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:9(1111).
  11. FEMA350 (2000), Recommended Seismic Design Criteria for New Steel Moment-frame Buildings, Federal Emergency Management Agency, U.S.A.
  12. FEMA355D (2000), State of Art Report on Connection Performance, Federal Emergency Management Agency, U.S.A.
  13. Freddi, F., Dimopoulos, C.A. and Karavasilis, T.L. (2017), "Rocking damage-free steel column base with friction devices: design procedure and numerical evaluation", Earthq. Eng. Struct. Dyn., 46(14), 2281-2300. https://doi.org/10.1002/eqe.2904.
  14. Garlock, M.M., Ricles, J.M. and Sause, R. (2005), "Experimental studies of full-scale posttensioned steel connections", J. Struct. Eng., 131(3), 438-448. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:3(438).
  15. Ikenaga, M., Nagae, T., Nakashima, M. and Suita, K. (2006) "Development of column bases having self-centering and damping capability", International Conference on the Behaviour of Steel Structures in Seismic Areas (STESSA), Yokohama, Japan, August.
  16. Kamperidis, V.C., Karavasilis, T.L. and Vasdravellis, G. (2015), "Design and modeling of a novel damage-free steel column base", International Conference on Advanced Steel Structures, Lisbon, Portugal, July.
  17. Lee, J. and Kim, J. (2015), "Seismic performance evaluation of moment frames with slit-friction hybrid dampers", Earthq. Struct., 9(6), 1291-1311. https://doi.org/10.12989/eas.2015.9.6.1291
  18. Loo, W.Y., Quenneville, P. and Chouw, N. (2014), "A new type of symmetric slip-friction connector", J. Constr. Steel Res., 94, 11-22. https://doi.org/10.1016/j.jcsr.2013.11.005
  19. Nakashima, M., Roeder, C.W. and Maruoka, Y. (2000), "Steel moment frames for earthquakes in United Stated and Japan", J. Struct. Eng., 126(8), 861-868. https://doi.org/10.1061/(ASCE)0733-9445(2000)126:8(861).
  20. Ricles, J.M., Sause, R., Peng, S.W. and Lu, L.W. (2002), "Experimental evaluation of earthquake resistant posttensioned steel connections", J. Struct. Eng., 128(7), 850-859. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:7(850).
  21. Rojas, P., Ricles, M.J. and Sause, R. (2005), "Seismic performance of post-tensioned steel moment resisting frames with friction devices", J. Struct. Eng., 131(4), 529-540. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:4(529).
  22. Takamatsu, T. and Tamai, H. (2005), "Non-slip-type restoring force characteristics of an exposed-type column base", J. Constr. Steel Res., 61(7), 942-961. ttps://doi.org/10.1016/j.jcsr.2005.01.003.
  23. Tsai, K.C., Chou, C.C., Lin, C.L., Chen, P.C. and Jhang, S.J. (2008), "Seismic self-centering steel beam-to-column moment connections using bolted friction devices", Earthq. Eng. Struct. Dyn., 37(4), 627-645. https://doi.org/10.1002/eqe.779.
  24. Vasdravellis, G., Karavasilis, T.L. and Uy, B. (2013), "Large-scale experimental validation of steel post-tensioned connections with web hourglass pins", J. Struct. Eng., 139(6), 1033-1042. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000696.