Earthquakes and Structures

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Seismic response of steel reinforced concrete spatial frame with irregular section columns under earthquake excitation

  • Xue, Jianyang (College of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Zhou, Chaofeng (College of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Liu, Zuqiang (College of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Qi, Liangjie (College of Civil Engineering, Xi'an University of Architecture and Technology)
  • Received : 2017.03.25
  • Accepted : 2018.03.02
  • Published : 2018.04.25
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Abstract

This paper presents some shaking table tests conducted on a 1/4-scaled model with 5-story steel reinforced concrete (SRC) spatial frame with irregular section columns under a series of base excitations with gradually increasing acceleration peaks. The test frame was subjected to a sequence of seismic simulation tests including 10 white noise vibrations and 51 seismic simulations. Each seismic simulation was associated with a different level of seismic disaster. Dynamic characteristic, strain response, acceleration response, displacement response, base shear and hysteretic behavior were analyzed. The test results demonstrate that at the end of the loading process, the failure mechanism of SRC frame with irregular section columns is the beam-hinged failure mechanism, which satisfies the seismic code of "strong column-weak beam". With the increase of acceleration peaks, accumulated damage of the frame increases gradually, which induces that the intrinsic frequency decreases whereas the damping ratio increases, and the peaks of acceleration and displacement occur later. During the loading process, torsion deformation appears and the base shear grows fast firstly and then slowly. The hysteretic curves are symmetric and plump, which shows a good capacity of energy dissipation. In summary, SRC frame with irregular section columns can satisfy the seismic requirements of "no collapse under seldom earthquake", which indicates that this structural system is suitable for the construction in the high seismic intensity zone.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China, Shaanxi Natural Science Foundation, Xi'an University of Architecture and Technology

References

  1. Ceccotti, A., Sandhaas, C., Okabe, M., Yasumura, M., Minowa, C. and Kawai, N. (2013), "SOFIE project-3D shaking table test on a seven-storey full-scale cross-laminated timber building", Earthq. Eng. Struct. Dyn., 42(13), 2003-2021. https://doi.org/10.1002/eqe.2309
  2. Chen, Z.P., Wang, N., Zhong, M., Xue, J.Y. and Su, Y.S. (2013), "Experimental study and finite element analysis on normal section bearing capacity of steel reinforced concrete specialshaped columns", J. Build. Struct., 34(10), 108-119.
  3. Chen, Z.P., Xu, J.J. and Chen, Y.L. (2016), "Axial compression ratio limit values for steel reinforced concrete (SRC) specialshaped columns", Steel Compos. Struct., 20(2), 295-316. https://doi.org/10.12989/scs.2016.20.2.295
  4. Chen, Z.P., Xu, J.J. and Xue, J.Y. (2014), "Experimental investigation on hysteretic behaviour of planar and 3D joints in cruciform SRC column frame", J. Build. Struct., 35(8), 80-87.
  5. Chen, Z.P., Xu, J.J. and Xue, J.Y. (2015), "Hysteretic behavior of special-shaped columns composed of steel and reinforced concrete (SRC)", Earthq. Eng. Eng. Vib., 14(2), 329-345. https://doi.org/10.1007/s11803-015-0026-1
  6. Deng, Z.H., Tang, G.X. and Xiang, P. (2010), "Experimental study on seismic behavior of SRC T-shaped column joints under low cyclic reversed loading", Indus. Constr., 40(6), 44-48.
  7. Furukawa, S., Sato, E., Shi, Y., Becker, T. and Nakashima, M. (2013), "Full-scale shaking table test of a base-isolated medical facility subjected to vertical motions", Earthq. Eng. Struct. Dyn., 42(13), 1931-1949. https://doi.org/10.1002/eqe.2305
  8. Liu, Z.Q., Xue, J.Y. and Zhao, H.T. (2014), "Cyclic test for solid steel reinforced concrete frames with special-shaped columns", Earthq. Struct., 7(3), 317-331. https://doi.org/10.12989/eas.2014.7.3.317
  9. Liu, Z.Q., Xue, J.Y., Zhou, P. and Zhao, H. (2012), "Quasi-static test and finite element analysis on solid-web steel reinforced concrete exterior frame with special-shaped columns", J. Build. Struct., 33(8), 23-30.
  10. Lu, X.L., Zou, Y., Lu, W.S. and Zhao, B. (2007), "Shaking table model test on shanghai world financial center tower", Earthq. Eng. Struct. Dyn., 36(4), 439-457. https://doi.org/10.1002/eqe.634
  11. Magenes, G., Penna, A. and Galasco, A. (2010), "A full-scale shaking table test on a two-storey stone masonry building", Proceedings of the14th European Conference on Earthquake Engineering.
  12. Tokgoz, S. and Dundar, C. (2012), "Test of eccentrically loaded Lshaped section steel fibre high strength reinforced concrete and composite columns", Eng. Struct., 38(5), 134-141. https://doi.org/10.1016/j.engstruct.2012.01.009
  13. Wang, T.C., Zhang, X.H. and Zhao, H.L. (2010), "Experimental research on seismic behavior of exterior joints with specially shaped columns reinforced by fiber", Indus. Constr., 40(1), 46-50.
  14. Xu, J.J., Chen, Z.P. and Xue, J.Y. (2014b), "Earthquake damage evolution and influence factor analysis on space joints for Tshaped SRC column-steel beams", J. Basic Sci. Eng., 22(6), 1165-1176.
  15. Xu, J.J., Chen, Z.P., Chen, Y.L. and Xue, J.Y. (2014a), "Seismic performance and quantitative indexes for SRC special-shaped columns", Chin. Civil Eng. J., 47(12), 133-138.
  16. Xue, J.Y, Qi, L.J., Gao, L. and Liu, Z.Q. (2016), "Mechanical behavior of lattice steel reinforced concrete inner frame with irregular section columns under cyclic reversed loading", Eng. Struct., 128, 225-236. https://doi.org/10.1016/j.engstruct.2016.09.045
  17. Xue, J.Y., Chen, Z.P., Zhao, H.T., Gao, L. and Liu, Z.Q. (2012), "Shear mechanism and bearing capacity calculation on steel reinforced concrete irregular section columns", Steel Compos. Struct., 13(5), 473-487. https://doi.org/10.12989/scs.2012.13.5.473
  18. Xue, J.Y., Gao, L. and Liu, Z.Q. (2014), "Experimental study on mechanical performances of lattice steel reinforced concrete inner frame with irregular section columns", Steel Compos. Struct., 16(3), 253-267. https://doi.org/10.12989/scs.2014.16.3.253
  19. Xue, J.Y., Liu. Y. and Chen, Z.P. (2011), "Experimental study of the bearing capacity of steel reinforced concrete special-shaped column-beam joint", Chin. Civil Eng. J., 44(5), 41-48.
  20. Yang, T. and Zhang, X.D. (2009), "Research on seismic behavior of frame with T-shaped SRC columns", J. Civil Arch. Environ. Eng., 31(2), 33-37.
  21. Yang, T., Zhang, X.D. and Zhong, H.N. (2015), "Pseudo-dynamic test on seismic behaviour of frame with T-shaped SRC columns", J. Central South Univ. (Sci. Technol.), 46(6), 2171-2177.
  22. Zhang, S., Chen, S.J., Li, Z. and Zhang, J.S. (2016), "Research on hysteretic performance of steel reinforced concrete T-shaped column", In MATEC Web of Conferences.
  23. Zhou, T., Chen, Z.H. and Liu, H.B. (2012), "Seismic behavior of special-shaped column composed of filled steel tubes", J. Constr. Steel Res., 75, 131-141. https://doi.org/10.1016/j.jcsr.2012.03.015