Elasto-Plastic Properties of Panel Zones and Effects on Story Drift of Steel Frames

Abstract:

Using the plastic shear deformation of panel zones (PZs) to increase the ductility and seismic energy dissipation of structures is a common practice in most countries specifications. This makes PZs generally yielding before columns and beams, and the shear deformation of PZs is relatively large. In order to explore the elasto-plastic properties of PZs, tests of different types of beam-column connections under monotonic loads were conducted firstly. Focus of tests is to explore the influence factors on elasto-plastic properties of PZs. Then based on test results and existing research data, simplified calculation methods of PZs strength and stiffness in the elastic and elasto-plastic stage were derived, and bilinear relationship expression of PZs moment-rotation was also given. Finally, the simplified calculation method for considering the effects of PZs elasto-plastic shear deformation on story drift of steel frames was presented.

• Periodical: Advanced Materials Research (Volumes 368-373)
• Pages: 678-684
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.368-373.678
• Online since: October 2011
• Authors: Bing Guo, Xiao Tong Peng
• Keywords: Panel Zone, Steel Frame, Stiffness, Story Drift, Strength

References

[1] Muto Kiyoshi: Dynamic design of structures (Architecture & Building Press, China 1984) (In Chinese)

[2] B. Kato, W.F. Chen, and M. Nakao: Journal of Constructional Steel Research, Vol. 10 (1988), p.269

[3] G.Q. Li, Z.Y. Shen: Journal of Tongji University, Vol. 18 (1990), p.1 (In Chinese)

[4] K.C. Tsai, E.P. Popov: Journal of Structural Engineering, ASCE, Vol. 116 (1990), p.3285

[5] B. Guo, Y.L. Guo, et al: Journal of Building Structures, Vol. 27 (2006), p.47 (In Chinese)

[6] B. Guo, Q. Gu, and F. Liu: Journal of Structural Engineering, ASCE, Vol. 132 (2006), p.1352

[7] E. P. Popov, T.S. Yang and S.P. Chang: Engineering Structures, Vol. 20 (1998), p.1030