Analyses in Seismic Responses of Different Types of Eccentrically Braced Steel Frames
In order to research the seismic behaviors of the eccentrically braced steel frames, used finite element software SAP2000 to build 20-storey single frame models with type D, K, and Y eccentrically braces, and did the seismic time history analyses to them. Comparisons were set between different kinds of braces in the distributions of moments, displacements, and accelerations for different layers produced by the EICENTRO seismic wave, TianJin seismic wave and NanJing seismic wave. Also, the analyses were set in the time history curves of displacements and accelerations. The results reveal that: type K is able to control the moments and displacements of the layers; while type Y is good at restricting the acceleration amplified effect, and the seismic behavior of type D is between the former two types.
Chaohe Chen, Yong Huang and Guangfan Li
Y. Hu et al., "Analyses in Seismic Responses of Different Types of Eccentrically Braced Steel Frames", Advanced Materials Research, Vols. 243-249, pp. 3737-3742, 2011