Structural Engineering and Mechanics

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Research on damage and identification of mortise-tenon joints stiffness in ancient wooden buildings based on shaking table test

  • Xue, Jianyang (Department of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Bai, Fuyu (Department of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Qi, Liangjie (Department of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Sui, Yan (Department of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Zhou, Chaofeng (Department of Civil Engineering, Xi'an University of Architecture and Technology)
  • Received : 2017.04.01
  • Accepted : 2018.01.01
  • Published : 2018.03.10
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Abstract

Based on the shaking table tests of a 1:3.52 scale one-bay and one-story ancient wooden structure, a simplified structural mechanics model was established, and the structural state equation and observation equation were deduced. Under the action of seismic waves, the damage rule of initial stiffness and yield stiffness of the joint was obtained. The force hammer percussion test and finite element calculations were carried out, and the structural response was obtained. Considering the 5% noise disturbance in the laboratory environment, the stiffness parameters of the mortise-tenon joint were identified by the partial least squares of singular value decomposition (PLS-SVD) and the Extended Kalman filter (EKF) method. The results show that dynamic and static cohesion method, PLS-SVD, and EKF method can be used to identify the damage degree of structures, and the stiffness of the mortise-tenon joints under strong earthquakes is reduced step by step. Using the proposed model, the identified error of the initial stiffness is about 0.58%-1.28%, and the error of the yield stiffness is about 0.44%-1.21%. This method has high accuracy and good applicability for identifying the initial stiffness and yield stiffness of the joints. The identification method and research results can provide a reference for monitoring and evaluating actual engineering structures.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

References

  1. Chen, Q.J., Zhou, C.J. and Yang, Y.S. (2014), "Damage identification of frame structure after earthquakes based on environmental vibration records", J. Hunan Univ. (Nat. Sci.), 41(9), 20-26.
  2. Chopra, A.K. (2007), Dynamics of Structures: Theory and Applications to Earthquake Engineering, 3rd Edition, Pearson Prentice Hall, New Jersey, U.S.A.
  3. Farahani, R.V. and Penumadu, D. (2016), "Damage identification of a full-scale five-girder bridge using time-series analysis of vibration data", Eng. Struct., 115(5), 129-139. https://doi.org/10.1016/j.engstruct.2016.02.008
  4. Gao, D.F., Zhao, H.T. and Xue, J.Y. (2008), Study on the Structure and Seismic Performance of Chinese Wooden Buildings, Science Press, Beijing, China.
  5. He, H.X., Lv, Y.W. and Han E.Z. (2015), "Damage detection for continuous girder bridge based on static-dynamic condensation and ekf", Eng. Mech., 32(7), 156-163.
  6. Huang, X.H., Dyke, S. and Xu, Z.D. (2015), "An in-time damage identification approach based on the Kalman filter and energy equilibrium theory", J. Zhejiang Univ.-SCI. A (Appl. Phys. Eng.), 16(2), 105-116. https://doi.org/10.1631/jzus.A1400163
  7. Jayalakshmi, V. and Rao, A.R.M. (2017), "Simultaneous identification of damage and input dynamic force on the structure for structural health monitoring", Struct. Multidiscipl. Optim., 1-28.
  8. Li, G.Q. and Li, J. (2002), Theory and Application of Dynamic Detection for Engineering Structures, Science Press, Beijing, China.
  9. Li, H.L., Lu, Z.R. and Liu, J.K. (2016), "Identification of distributed damage in bridges from vehicle-induced dynamic responses", Adv. Struct. Eng., 19(6), 945-952. https://doi.org/10.1177/1369433216630443
  10. Nozari, A., Behmanesh, I., Yousefianmoghadam, S. and Moaveni, B. (2017), "Andreas stavridis. Effects of variability in ambient vibration data on model updating and damage identification of a 10-story building", Eng. Struct., 151(11), 540-553. https://doi.org/10.1016/j.engstruct.2017.08.044
  11. Sui, Y., Zhao, H.T. and Xue, J.Y. (2010), "Experimental study on lateral stiffness of dougong layer in Chinese historic buildings", Eng. Mech., 27(3), 74-78.
  12. Wang, J. and Yang, Q.S. (2014), "Numerical Simulation of wood Structure damage identification in", J. Vibr. Measure. Diagn., 34(1), 160-167.
  13. Wang, X., Hu, W.B. and Meng, Z.B. (2014), "Damage detection of an ancient wood structure based on wavelet packet energy curvature difference", J. Vibr. Shock, 33(7), 153-159.
  14. Wang, X.Y., Huang, W.P. and Li, H.J. (2005), "Inversion of ground motion and identification of structural parametersby ekf", Engineering Mech., 22(4), 20-23.
  15. Xie, Q.F., Xue, J.Y. and Zhao, H.T. (2010), "Seismic damage investigation and analysis of ancient buildings in Wenchuan earthquake", J. Build. Struct., 31(2), 18-23.
  16. Xu, B. and He, J. (2012), "Structural parameters and dynamic loading identification with partially unknown excitations", Chin. Civil Eng. J., 45(6), 13-22.
  17. Xu, L.H., Li, Z.X. and Lv, Y. (2014), "Nonlinear seismic damage control of steel frame-steel plate shear wall structures using MR dampers", Earthq. Struct., 7(6), 937-953. https://doi.org/10.12989/eas.2014.7.6.937
  18. Xu, L.H. and Li, Z.X. (2011), "Model predictive control strategies for protection of structures during earthquakes", Struct. Eng. Mech., 40(2), 233-243. https://doi.org/10.12989/sem.2011.40.2.233
  19. Xu, L.H., Li, Z.X. and Qian, J.R. (2011), "Test ananlysis of detection of damage to a complicated spatial model structure", Acta Mech. Sin., 27(3), 399-405. https://doi.org/10.1007/s10409-011-0437-9
  20. Xue, J.Y., Zhao, H.T. and Zhang, P.C. (2004), "Study on the seismic behaviors of Chinese ancient woodn buolding by shaking table test", Chin. Civil Eng. J., 37(6), 6-11.
  21. Yang, C., Hou, X.B., Wang, L. and Zhang, X.H. (2016), "Applications of different criteria in structural damage identification based on natural frequency and static displacement", SCI. CHIN. (Technol. Sci.), 5(11), 1746-1758
  22. Yao, K. and Zhao, H.T. (2006), "Study on the mechanism of sliding friction shock isolation between timber column and plinth in historical", Eng. Mech., 23(8), 127-131.
  23. Yao, K., Zhao, H.T. and Ge, H.P. (2006), "Experimental studies on the characteristic of mortise-tenon joint in historic timber buildings", Eng. Mech., 23(10), 168-173.
  24. Zhang, C.D. and Xu, Y.L. (2017), "Multi-level damage identification with response reconstruction", Mech. Syst. Sign. Proc., 95(10), 42-57. https://doi.org/10.1016/j.ymssp.2017.03.029
  25. Zhang, W.S., Du, Z.L., Sun, G. and Xu, G. (2017), "A level set approach for damage identification of continuum structures based on dynamic responses", J. Sound Vibr., 386(1), 100-115. https://doi.org/10.1016/j.jsv.2016.06.014
  26. Zhang, X.C., Xue, J.Y. and Zhao, H.T. (2011), "Experimental study on Chinese ancient timber-frame building by shaking table test", Struct. Eng. Mech., 40(4), 453-457. https://doi.org/10.12989/sem.2011.40.4.453
  27. Zhao, H.T., Zhang, H.Y. and Xue, J.Y. (2009), "Stiffness analysis of dovetail joints of ancient architecture wood structures", J. Xi'an Univ. Architect. Technol., 41(4), 450-451.