Advertisement

Computational Model of the Elastic Stiffness of Panel Zone in Diaphragm-Through Connections

  • Bin Rong
  • Ziheng Yang
  • Ruoyu ZhangEmail author
  • Changxi Feng
Article
  • 4 Downloads

Abstract

The elastic stiffness of the panel zone in diaphragm-through connection between square steel tubular column and H-shaped steel beam subjected to lateral loads is studied in this paper. Through analyzing the deformation mechanism of diaphragm-through connection, the rotation of the panel zone is found to be the superposition of bending deformation of the column and shear deformation of the panel zone. Based on the mechanical model, the computational method of the elastic stiffness of the panel zone in the diaphragm-though connection is developed. To verify the computational method, three cruciform specimens were tested subjected to a set of anti-symmetrical cyclic load at the beam tips. Based on the test results, the developed finite element model is verified and used in the follow-up parametric analysis to check the applicability of the proposed computational method. Key variables involved are the width of column, thickness of column and the height-to-width ratio of the core tube.

Keywords

Diaphragm-through connection Panel zone Rotation model Elastic stiffness Finite element analysis Computational method 

Notes

Acknowledgements

The research was financially supported by the National Natural Science Foundations of China (Nos. 51268054 and 51468061) and the Natural Science Foundation of Tianjin City, China (No. 13JCQNJC07300). The financial supports are greatly appreciated.

References

  1. Elghazouli, A. Y., Málaga-Chuquitaype, C., Castro, J. M., & Orton, A. H. (2009). Experimental monotonic and cyclic behavior of blind-bolted angle connections. Engineering Structures, 31(11), 2540–2553.CrossRefGoogle Scholar
  2. Fukumoto, T., & Morita, K. (2005). Elastoplastic behavior of panel zone in steel beam-to-concrete filled steel tube column moment connections. Journal of Structural Engineering, 131(12), 1841–1853.CrossRefGoogle Scholar
  3. GB/T 228-2010. Metallic Materials at Room Temperature Tensile Test Method (in Chinese).Google Scholar
  4. Kim, K. D., & Engelhardt, M. D. (2002). Monotonic and cyclic loading models for panel zones in steel moment frames. Journal of Constructional Steel Research, 58(5–8), 605–635.CrossRefGoogle Scholar
  5. Krawinkler, H. (1978). Shear in beam shear in beam-column joints in seismic design of steel frames. Engineering Journal, 15(3), 82–91.Google Scholar
  6. Nie, J., Qin, K., & Cai, C. S. (2008a). Seismic behavior of connections composed of CFSSTCs and steel–concrete composite beams-finite element analysis. Journal of Construction Steel Research, 64(6), 680–688.CrossRefGoogle Scholar
  7. Nie, J., Qin, K., & Cai, C. S. (2008b). Seismic behavior of connections composed of CFSSTCs and steel–concrete composite beams-experimental study. Journal of Construction Steel Research, 64(10), 1178–1191.CrossRefGoogle Scholar
  8. Nishiyama, I., Fujimoto, T., Fukumoto, T., & Yoshioka, K. (2004). Inelastic force-deformation response of joint shear panels in beam-column moment connections to concrete-filled tubes. Journal of Structural Engineering, 130(2), 244–252.CrossRefGoogle Scholar
  9. Pan, L., & Chen, Y. (2016). Modified formula for calculating elastic stiffness of panel zone in h-shaped beam-column connections. Engineering Mechanics, 33(11), 68–74.MathSciNetGoogle Scholar
  10. Qin, Y., Chen, Z., Wang, X., & Zhou, T. (2014a). Seismic behavior of through-diaphragm connections between CFRT columns and steel beams-experimental study. Advanced Steel Construction, 10(3), 351–371.Google Scholar
  11. Qin, Y., Chen, Z., Yang, Q., & Shang, K. (2014b). Experimental seismic behavior of through-diaphragm connections to concrete-filled rectangular steel tubular columns. Journal of Constructional Steel Research, 93(1), 32–43.CrossRefGoogle Scholar
  12. Rong, B., Liu, R., Zhang, R., Chen, Z., & Fafitis, A. (2016). Flexural bearing capacity of diaphragm-through joints of concrete-filled square steel tubular columns. Steel and Composite Structures, 20(3), 487–500.CrossRefGoogle Scholar
  13. Shi, G., Shi, Y., & Wang, Y. (2006). Calculational method of shear deformation for beam-to-column connection panel zone in steel frames. Journal of Jilin University, 36(4), 462–466.Google Scholar
  14. Rong, B., Liu, R., Li, Z., Feng, C., You, G., and Apostolos, F., “Flexural capacity formula of diaphragm-through joints of concrete-filled square steel tubular columns”, Transactions of Tianjin University, 2017, pp.1-9.Google Scholar
  15. Tao, M., & Nie, J. (2016). Quantitative evaluation of deformation mechanism and failure modes for composite joints. China Civil Engineering Journal, 49(8), 61–68.Google Scholar
  16. Wu, L., Chen, Z., & Rong, B. (2017). Calculation method for the shear bearing capacity of diaphragm-through connections. Advances in Structural Engineering, 20(6), 906–916.CrossRefGoogle Scholar

Copyright information

© Korean Society of Steel Construction 2019

Authors and Affiliations

  1. 1.School of Civil EngineeringTianjin UniversityTianjinChina
  2. 2.Key Laboratory of Coast Civil Structure SafetyTianjin UniversityTianjinChina

Personalised recommendations