Study on the Dynamic Behavior of Semi-Rigid Frames


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The dynamic behavior of semi-rigid concrete filled steel tube frames is different from that of their rigid counterparts. ANSYS was employed to model ten-story concrete filled steel tube frames with three different connection types( rigid, semi-rigid and flexible). Natural period, inter-story drifts and total drifts of the frames subjected to design response spectra excitation were analyzed. Time-history analyses when the frames subjected to two different earthquakes were studied. It seems that connection flexibility noticeably increases the natural periods of the lower modes, however, its effect on higher modes is negligible. The use of rigid frames may not be the best option in seismic region. The seismic design suggestions of the frames were proposed.



Advanced Materials Research (Volumes 671-674)

Edited by:

Yong Huang, Tai Bao and Hong Wang




X. L. Sun, "Study on the Dynamic Behavior of Semi-Rigid Frames", Advanced Materials Research, Vols. 671-674, pp. 864-867, 2013

Online since:

March 2013





[1] Lui E.M. Dynamic analysis and response of frames [J]. Engineering Structures Semirigid, 1997 644 - 654.


[2] Guo Bing, Chen Aiguo of semi rigid steel frame finite element analysis and performance study [J]. Journal of building structures, 2002, 10: 48 ~ 52 (in Chinese).

[3] Wang Yan, Li Jianfen. Internal force of semi-rigid steel frame analysis of [J]. mechanics and practice, 2003. 2: 35 ~ 38 (in Chinese).

[4] D.A. Nethercot. Semi-rigid joint action and the design of nonsway composite frames. Engineering Structures. Vol. 17. No. 8. p.554~567. (1995).


[5] Awkar J. C, Liu E.M. Seismic analysis and response of multistory frames [J]. Engineering Structures Semirigid, 1999425~ 441.


[6] Liu Tao, Yang Fengpeng. Proficient in ANSYS[M]. Tsinghua University Press, . 2002. 9 (in Chinese).