Structural Engineering and Mechanics

  • 제47권6호
  • /
  • Pages.757-771
  • /
  • 2013
  • /
  • 1225-4568(pISSN)
  • /
  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Estimation of semi-rigid joints by cross modal strain energy method

  • Wang, Shuqing (College of Engineering, Ocean University of China) ;
  • Zhang, Min (College of Engineering, Ocean University of China) ;
  • Liu, Fushun (College of Engineering, Ocean University of China)
  • 투고 : 2012.06.11
  • 심사 : 2013.08.31
  • 발행 : 2013.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

We present a semi-rigid connection estimation method by using cross modal strain energy method. While rigid or pinned assumptions are adopted for steel frames in traditional modeling via finite element method, the actual behavior of the connections is usually neither. Semi-rigid joints enable connections to be modeled as partially restrained, which improves the quality of the model. To identify the connection stiffness and update the FE model, a newly-developed cross modal strain energy (CMSE) method is extended to incorporate the connection stiffness estimation. Meanwhile, the relations between the correction coefficients for the CMSE method are derived, which enables less modal information to be used in the estimation procedure. To illustrate the capability of the proposed parameter estimation algorithm, a four-story frame structure is demonstrated in the numerical studies. Several cases, including Semi-rigid joint(s) on single connection and on multi-connections, without and with measurement noise, are investigated. Numerical results indicate that an excellent updating is achievable and the connection stiffness can be estimated by CMSE method.

키워드

참고문헌

  1. Chen, W.F. and Lui, E.M. (1991), Stability Design of Steel Frames, CRC Press Inc., Boca Raton.
  2. Cunha, J., Foltete, E. and Bouhaddi, N. (2008), "Evaluation of stiffness of semi-rigid joints in pultruded profiles from dynamic and static data by using model updating technique", Engineering Structures, 30 1024-1036. https://doi.org/10.1016/j.engstruct.2007.06.012
  3. Daniunas, A. and Urbonas, K. (2008), "Analysis of the steel frames with the semi-rigid beam-to-beam and beam-to-column knee joints under bending and axial forces", Engineering Structures, 30, 3114-3118. https://doi.org/10.1016/j.engstruct.2008.04.027
  4. Ewins, D.J. (2000), Modal Testing: Theory, Practice and Application, 2nd Edition, Research Studies Press.
  5. Fan, F., Ma, H., Chen, G and Shen, S. (2012), "Experimental study of semi-rigid joint systems subjected to bending with and without axial force", Journal of Constructional Steel Research, 68, 126-137. https://doi.org/10.1016/j.jcsr.2011.07.020
  6. Friswell, M.I. and Mottershead, J.E. (1995), Finite Element Model Updating In Structural Dynamics, Kluwer Academic Publishers.
  7. Hadianfard, M.A. and Razani, R. (2003), "Effects of semi-rigid behavior of connections in the reliability of steel frames", Structural Safety, 25, 123-138. https://doi.org/10.1016/S0167-4730(02)00046-2
  8. Hu, S.L.J., Li, H.J. and Wang, S.Q. (2007), "Cross-model cross-mode method for model updating", Mechanical Systems and Signal Processing, 21(2), 1690-1703. https://doi.org/10.1016/j.ymssp.2006.07.012
  9. Hu, S.L.J., Wang, S.Q. and Li, H.J. (2006), "Cross modal strain energy method for estimating damage severity", Journal of Engineering Mechanics, 132(4), 429-437. https://doi.org/10.1061/(ASCE)0733-9399(2006)132:4(429)
  10. Katkhuda, H.N., Dwairi, H.N. and Shatarat, S. (2010), "System identification of steel framed structures with semi-rigid connections", Structural Engineering and Mechanics, 34(3), 351-366. https://doi.org/10.12989/sem.2010.34.3.351
  11. Loureiro, A., Gutierrez, R. Reinosa, J.M. and Moreno, A. (2010), "Axial stiffness prediction of non-preloaded T-stubs: an analytical frame approach", J. Construct. Steel Res., 66, 1516-1522. https://doi.org/10.1016/j.jcsr.2010.06.005
  12. Loureiro, A., Moreno, A., Gutierrez, R. and Reinosa, J.M. (2012), "Experimental and numerical analysis of three-dimensional semi-rigid steel joints under non-proportional loading", Engineering Structures, 38, 68-77. https://doi.org/10.1016/j.engstruct.2011.12.048
  13. Monforton, G.R. and Wu, T.S.X. (1963), "Matrix analysis of semi-rigidly connected frames", Journal of Structural Division, 89(ST6), 13-42.
  14. Mottershead, J.E. and Friswell, M.I. (1993), "Model updating in structural dynamics: a survey", Journal of Sound and Vibration, 167, 347-376. https://doi.org/10.1006/jsvi.1993.1340
  15. Sanayei, M., McClain, J.A.,Wadia-Fascetti, S. and Santini, E.M. (1999), "Parameter estimation incorporating modal data and boundary conditions", Journal of Structural Engineering, 125(9), 1048-1055. https://doi.org/10.1061/(ASCE)0733-9445(1999)125:9(1048)
  16. Wang, S. (2013a), "Damage detection in offshore platform structures from limited modal data", Applied Ocean Research, 41, 48-56. https://doi.org/10.1016/j.apor.2013.02.004
  17. Wang, S. (2013b), "Model updating and parameters estimation incorporating flexible joints and boundary conditions", Inverse Problems in Science and Engineering, DOI:10.1080/17415977.2013.823413.
  18. Wang, S., Li, H. and Hu, S.L.J. (2007), "Cross modal strain energy method for damage localization and severity estimation", OMAE2007-29381, 245-249.

피인용 문헌

  1. Bolted joints for single-layer structures: numerical analysis of the bending behaviour vol.56, pp.3, 2015, https://doi.org/10.12989/sem.2015.56.3.355
  2. An improved modal strain energy method for structural damage detection, 2D simulation vol.54, pp.1, 2015, https://doi.org/10.12989/sem.2015.54.1.105
  3. Modal Strain Energy-based Structural Damage Identification: A Review and Comparative Study pp.1683-0350, 2018, https://doi.org/10.1080/10168664.2018.1507607
  4. Three-dimensional numerical and linearly distributed multi-parameter fitted analytical modeling of hybrid beam–column with partially welded flush end-plate connection vol.21, pp.12, 2018, https://doi.org/10.1177/1369433218754698
  5. Evolutionary-base finite element model updating and damage detection using modal testing results vol.70, pp.3, 2013, https://doi.org/10.12989/sem.2019.70.3.339
  6. A modified index for damage detection of structures using improved reduction system method vol.25, pp.1, 2020, https://doi.org/10.12989/sss.2020.25.1.001