Structural Engineering and Mechanics

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Mechanical properties of reinforced-concrete rocking columns based on damage resistance

  • Zhu, Chunyang (Department of Civil Engineering, Shenyang Jianzhu University) ;
  • Cui, Yanqing (Department of Civil Engineering, Shenyang Jianzhu University) ;
  • Sun, Li (Department of Civil Engineering, Shenyang Jianzhu University) ;
  • Du, Shiwei (Department of Civil Engineering, Shenyang Jianzhu University) ;
  • Wang, Xinhui (Department of Civil Engineering, Shenyang Jianzhu University) ;
  • Yu, Haochuan (Department of Civil Engineering, Shenyang Jianzhu University)
  • Received : 2021.08.18
  • Accepted : 2021.11.16
  • Published : 2021.12.25
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Abstract

The objective of seismic resilience is to maintain or rapidly restore the function of a building after an earthquake. An efficient tilt mechanism at the member level is crucial for the restoration of the main structure function; however, the damage resistance of the members should be the main focus. In this study, through a comparison with the classical Flamant theory of local loading in the elastic half-space, an elastomechanical solution for the axial-stress distribution of a reinforced-concrete (RC) rocking column was derived. Furthermore, assuming that the lateral displacement of the rocking column is determined by the contact surface rotation angle of the column end and bending and shear deformation of the column body, the load-lateral displacement mechanical model of the RC rocking column was established and validated through a comparison with finite-element simulation results. The axial-compression ratio and column-end strength were analyzed, and the results indicated that on the premise of column damage resistance, simply increasing the axial-compression ratio increases the lateral loading capacity of the column but is ineffective for improving the lateral-displacement capacity. The lateral loading and displacement of the column are significantly improved as the strength of the column end material increases. Therefore, it is feasible to improve the working performance of RC rocking columns via local reinforcement of the column end.

Keywords

Acknowledgement

The research described in this paper was financially supported by the National Key Research and Development Program of China, under grant number 2018YFC1504303.

References

  1. Chen, X., Xia, X., Zhang, X. and Gao, J. (2020), "Seismic performance and design of bridge piers with rocking isolation", Struct. Eng. Mech., 73(4), 447-454. https://doi.org/10.12989/sem.2020.73.4.447.
  2. Chi, H. (2009), "Development of post-tensioned column base connection for self-centering seismic resistant steel frame", Ph.D. Dissertation, Purdue University, West Lafayette.
  3. Christopoulos, C. and Erochko, J. (2014), "Self-centering energy-dissipative (SCED) brace: overview of recent developments and potential applications for tall buildings", Proceedings of International Conference on Sustainable Development of Critical Infrastructure, Shanghai, China, October.
  4. Chung, Y.L., Du, L.J. and Pan, H.H. (2019), "Performance evaluation of a rocking steel column base equipped with asymmetrical resistance friction damper", Earthq. Struct., 17(1), 49-61. https://doi.org/10.12989/eas.2019.17.1.049.
  5. Cui, Y., Lu, X.L. and Jiang, C. (2017), "Investigation of seismic performance of tri-axial reinforced concrete frames with self-centering capacity", Proceedings of 16th World Conference on Earthquake Engineering (16WCEE), Santiago, USA, October.
  6. Francisco, J.P., David, D. and Luis, P. (2020), "Resilient structures in the seismic retrofitting of RC frames: A case study", Struct. Eng. Mech., 76(1), 57-65. https://doi.org/10.12989/sem.2020.76.1.057.
  7. Freddi, F., Dimopoulos, C.A. and Karavasilis, T.L. (2011), "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/cepa.355.
  8. Latour, M., Rizzano, G., Santiago, A. and da Silva, L.S. (2019), "Experimental response of a low-yielding, self-centering, rocking column base joint with friction dampers", Soil Dyn. Earthq. Eng., 116, 580-592. https://doi.org/10.1016/j.soildyn.2018.10.011.
  9. Liu, Y., Guo, Z., Liu, X., Chicchi, R. and Shahrooz, B. (2019), "An innovative resilient rocking column with replaceable steel slit dampers: Experimental program on seismic performance", Eng. Struct., 183(1), 830-840. https://doi.org/10.1016/j.engstruct.2019.01.059.
  10. Lu, L., Ye, Y.L., Xia, W.Q. and Huang, Z.H. (2020), "Shaking table test on seismic behavior of externally prestressed self-resetting reinforced concrete frames", J. Civil Eng., 53(S2), 68-73. (in Chinese)
  11. Lv, X.L., Cui, Y., Liu, J.J. and Gao, W.J. (2015), "Shaking table test and numerical simulation of a 1/2-scale self-centering reinforced concrete frame", Earthq. Eng. Struct. Dyn., 44(12), 1899-1917. https://doi.org/10.1002/eqe.2560.
  12. Lv, X.L., Wu, D.Y. and Zhou, Y. (2019), "State of the art of earthquake resilient structures", J. Build. Struct., 40(02), 1-15. (in Chinese). https://doi.org/10.14006/j.jzjgxb.2019.02.001.
  13. Mahin, S. (2017), "Resilience by design: a structural engineering perspective", Proceedings of 16th World Conference on Earthquake Engineering (16WCEE), Santiago, USA, October.
  14. Mieler, M.W. (2012), "Toward resilient communities: a performance based engineering framework for design and evaluation of the built environment", Ph.D. Dissertation, University of California at Berkeley, Berkely.
  15. Nasim, I.S. and Abdolrahim, J. (2020), "Seismic response evaluation of concentrically rocking zipper braced frames", Struct. Eng. Mech., 73(3), 303-317. https://doi.org/10.12989/sem.2020.73.3.303.
  16. Rodgers, G., Mander, J., Chase, J. and Dhakal, R. (2015), "Beyond ductility: Parametric testing of a jointed rocking beam-column connection designed for damage avoidance", J. Struct. Eng., 2015, 142(8), C4015006. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001318.
  17. Roh, M. and Reinhorn, A.M. (2009), "Analytical modeling of rocking elements", Eng. Struct., 31(5), 1179-1189. https://doi.org/10.1016/j.engstruct.2009.01.014.
  18. Roh, M. and Reinhorn, A.M. (2010a), "Nonlinear static analysis of structures with rocking columns", J. Struct. Eng., 136(5), 532-542. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000154.
  19. Roh, M. and Reinhorn, A.M. (2010b), "Modeling and seismic response of structures with concrete rocking columns and viscous dampers", Eng. Struct., 32(8), 2096-2107. https://doi.org/10.1016/j.engstruct.2010.03.013.
  20. Spur (2009), The Resilient City: Defining What San Francisco Needs from its Seismic Mitigation Policies, the San Francisco Planning and Urban Research Association, San Francisco, CA, USA.
  21. Vassiliou, M.F. and Makris, N. (2015), "Dynamics of the vertically restrained rocking column", J. Eng. Mech., 141(12), 04015049. https://doi.org/10.1061/(ASCE)EM.1943-7889.0000953.
  22. Wang, J., He, J.X., Yang, Q.S. and Yang, N. (2018), "Study on mechanical behaviors of column foot joint in traditional timber structure", Struct. Eng. Mech., 66(1), 1-14. https://doi.org/10.12989/sem.2018.66.1.001.