Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Dynamic test and numerical simulation on avoiding the weak-story failure mechanism in structures using LSFDs

  • Zhu, Li-Hua (State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology) ;
  • Li, Gang (State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology) ;
  • Dong, Zhi-Qian (State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology)
  • Received : 2020.06.02
  • Accepted : 2021.06.15
  • Published : 2021.07.25
⟨ Previous Next ⟩

Abstract

The structural damage or collapse caused by weak-story failure mechanisms poses a great threat to the safety of human life and property under strong earthquakes. Many researchers have attempted to transform this unexpected failure mechanism into the desired overall failure mechanism by installing various energy dissipation devices on unsafe structures. This paper introduced a lattice-shaped friction device (LSFD), which is a friction device with hardening postyielding stiffness, into a steel frame with a weak-story failure mechanism. Then, shaking table tests of a three types of two-story steel frames-a frame with LSFDs, a frame with traditional friction brace dampers (FBDs), and a bare frame-were carried out. The seismic responses of the hardening postyielding stiffness of the LSFD on the weak-story failure mechanism of the frame were emphatically studied. The results showed that there was little difference in the seismic responses between the two damped structures under moderate and weak earthquakes. The distribution of maximum story drift for the structure with LSFDs was more uniform, which effectively suppressed the weak-story failure under strong earthquakes, whereas the structure with FBDs had serious deformation concentrations. The numerical simulation results of the structure with LSFDs in the shaking table test showed that the simplified model results were basically consistent with the experimental results. Hence, this model could be used to analyze the seismic performance of damped structures with LSFDs.

Keywords

Acknowledgement

The authors would like to acknowledge the financial support from the Doctoral Scientific Research Foundation of Liaoning Province (grant No. 2019-BS-052), the National Natural Science Foundation of China (grant No. 51908105), and Liaoning Revitalization Talents Program (grant No. XLYC1902043).

References

  1. Aiken, I.D. (1990), Earthquake simulator testing and analytical studies of two energy-absorbing systems for multistory structures, Earthquake Engineering Research Center, College of Engineering, University of California.
  2. Anoushehei, M., Daneshjoo, F., Mahboubi, S. and Khazaeli, S. (2017), "Experimental investigation on hysteretic behavior of rotational friction dampers with new friction materials", Steel Compos. Struct., 24(2), 239-248. https://doi.org/10.12989/scs.2017.24.2.239.
  3. Cao, L., Laflamme, S., Taylor, D. and Ricles, J. (2016), "Simulations of a Variable Friction Device for Multihazard Mitigation", J. Struct. Eng., 142(12), H4016001. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001580
  4. Dong, Z.Q., Li, G. and Li, H.N. (2021), "Dynamic test for collapse prevention performance of a low-ductility steel concentrically braced frame". Eng. Struct., 240, 112420. https://doi.org/10.1016/j.engstruct.2021.112420
  5. Eldin, M.N., Kim, J. and Kim, J. (2018), "Optimum distribution of steel slit-friction hybrid dampers based on life cycle cost", Steel Compos. Struct. 27(5), 633-646. https://doi.org/10.12989/SCS.2018.27.5.633
  6. Filiatrault, A. and Cherry, S. (1987), "Performance Evaluation of Friction Damped Braced Steel Frames Under Simulated Earthquake Loads", Earthq. Spectra, 57-78. https://doi.org/10.1193/1.1585419.
  7. Housner, G.W., Bergman, L.A., Caughey, T.K., Chassiakos, A.G., Claus, R.O., Masri, S.F., Skelton, R.E., Soong, T.T., Spencer, B.F. and Yao, J.T.P. (1997), "Structural control: past, present, and future", J. Eng. Mech., 123(9), 897-971. https://doi.org/10.1061/(ASCE)0733-9399(1997)123:9(897).
  8. Lee, C.H., Kim, J., Kim, D.H., Ryu, J. and Ju, Y.K. (2016), "Numerical and experimental analysis of combined behavior of shear-type friction damper and non-uniform strip damper for multi-level seismic protection", Eng. Struct., 114, 75-92. https://doi.org/10.1016/j.engstruct.2016.02.007.
  9. Lee, C.H., Ryu, J., Kim, D.H. and Ju, Y.K. (2018), "Improving seismic performance of non-ductile reinforced concrete frames through the combined behavior of friction and metallic dampers", Eng. Struct., 172, 304-320. https://doi.org/10.1016/j.engstruct.2018.06.045.
  10. Lee, C.H., Ryu, J., Oh, J., Yoo, C.H. and Ju, Y.K. (2016), "Friction between a new low-steel composite material and milled steel for SAFE Dampers", Eng. Struct., 122, 279-295. https://doi.org/10.1016/j.engstruct.2016.04.056.
  11. Lee, J., Kang, H. and Kim, J. (2017), "Seismic performance of steel plate slit-friction hybrid dampers", J. Constr. Steel Res., 136(5), 128-139. https://doi.org/10.1016/j.jcsr.2017.05.005.
  12. Li, G. and Li, H.N. (2013), "Experimental study and application of metallic yielding-friction damper", J. Earthq. Tsunami, 7(3), 132-141. https://doi.org/10.1142/S1793431113500127.
  13. Li, G., Dong, Z.Q. and Li, H.N. (2018), "Simplified collapse prevention evaluation for the reserve system of low-ductility steel concentrically braced frames". J. Struct. Eng. - ASCE, 144(7), 04018071. https://doi.org/10.1061/(ASCE)ST.1943-541X.0002062.
  14. Li, G., Zhu, L.H. and Li, H.N. (2019), "Displacement-based seismic design for buildings installed hysteretic dampers with hardening post-yielding stiffness", Adv. Struct. Eng., 22(16), 3420-3434. https://doi.org/10.1177/1369433219852715.
  15. Li, H.N. and Li, G. (2007), "Experimental study of structure with "dual function" metallic dampers", Eng. Struct., 29(8), 1917- 1928. https://doi.org/10.1016/j.engstruct.2006.10.007.
  16. Macrae, G.A., Kimura, Y. and Roeder, C. (2004), "Effect of Column Stiffness on Braced Frame Seismic Behavior", J. Struct. Eng., 130(130), 381-391. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:3(381).
  17. Mirtaheri, M., Zandi, A.P., Samadi, S.S. and Samani, H.R. (2011), "Numerical and experimental study of hysteretic behavior of cylindrical friction dampers", Eng. Struct., 33(12), 3647-3656. https://doi.org/10.1016/j.engstruct.2011.07.029.
  18. Mirzai, N.M. and Hu, J.W. (2019), "Pilot study for investigating the inelastic response of a new axial smart damper combined with friction devices", Steel Compos. Struct., 32(3), 373-388. https://doi.org/10.12989/scs.2019.32.3.373.
  19. Monir, H.S. and Zeynali, K. (2013), "A modified friction damper for diagonal bracing of structures", J. Constr. Steel Res., 87(6), 17-30. https://doi.org/10.1016/j.jcsr.2013.04.004.
  20. National Standard of the People's Republic of China (2010), Code for seismic design of buildings: GB 50011-2010, China Architecture & Building Press, Beijing.
  21. Ng, C.L. and Xu, Y.L. (2006), "Seismic response control of a building complex utilizing passive friction damper: Experimental investigation", Earthq. Eng. Struct. D., 35(6), 657-677. https://doi.org/10.1002/eqe.549.
  22. Okazaki, T., Lignos, D.G., Hikino, T. and Kajiwara, K. (2013), "Dynamic Response of a Chevron Concentrically Braced Frame", J. Struct. Eng., 139(4), 515-525. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000679.
  23. Park, J.H., Min, K.W., Chung, L., Lee, S.K., Kim, H.S. and Moon, B.W. (2007), "Equivalent linearization of a friction damperbrace system based on the probability distribution of the extremal displacement", Eng. Struct., 29(6), 1226-1237. https://doi.org/10.1016/j.engstruct.2006.07.025
  24. Richter, P.J., Nims, D.K., Kelly, J.M. and Kallenbach, R.M. (1990). "The EDR-energy dissipating restraint. A new device for mitigation of seismic effects", Proceedings of the 1990 SEAOC Convention.
  25. Sadjadi, M., Fadaee, M., Ghannad, M.A. and Jahankhah, H. (2019), "Numerical Study of Stiff Diaphragm Walls Used to Improve the Performance of Rocking Foundation Systems", J. Earthq. Eng., 1-23. https://doi.org/10.1080/13632469.2019.1631233.
  26. Soong, T.T. and Dargush, G.F. (1997), Passive energy dissipation systems in structural engineering, John Wiley & Sons, New York.
  27. Wu, B. and Ou, J. (2003), "The pseudo-viscous frictional energy dissipator: a new device for mitigating seismic effects", Earthq. Eng. Struct. D., 32(1), 31-48. https://doi.org/10.1002/eqe.213.
  28. Xu, Y.L. and Ng, C.L. (2008), "Seismic protection of a building complex using variable friction damper: Experimental investigation", J. Eng. Mech., 134(8), 637-649. https://doi.org/10.1061/(ASCE)0733-9399(2008)134:8(637).
  29. Zhu, L.H., Li, G. and Li, H.N. (2018), "A lattice-shaped friction device and its performance in weak-story prevention", Struct. Des. Tall Spec. Build., 27(15), e1535. https://doi.org/10.1002/tal.1535.