Analysis on Seismic Performance of Centrically Braced Steel Frame

Z. H. Zhang†‡*, F. Fan†, K. X. Wang‡ , & B. Franciosa§

†School of Civil Engineering, Harbin Institute of Technology, Harbin, 150001, China, ‡College of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, 150030, China, §University of Molise, Engineering Division, Campobasso, Italy

Cite this paper
Z. H. Zhang†‡*, F. Fan†, K. X. Wang‡ , & B. Franciosa§, “Analysis on Seismic Performance of Centrically Braced Steel Frame”, Journal of Mechanical Engineering Research and Developments, vol. 39, no. 2, pp. 308-314, 2016.  DOI: 10.7508/jmerd.2016.02.006

ABSTRACT: The basic design idea of centrically braced steel frame is to center the plastic deformation of steel braced frame on braces during strong ground motions. Braces are expected to have tensile yielding and compressive buckling to dissipate energy and other structural components are needed to keep elastic. In order to analyze vibration property of steel frames with different pattern of braces, 12-layers lightweight centrically braced steel frame with three patterns as X braces, V braces and inverted V braces were designed utilizing PKPM software, providing the dynamic characteristics of the main components’ size and structure, finite element analyses on these structures were carried out by using ANSYS and SAP2000 to investigate the effects of brace pattern on structural stiffness; Then ANSYS was utilized to carry out nonlinear time history analysis of frequent earthquake and rare earthquake under EL-Centro wave and SHW2 wave, seismic performance of steel frame with different braces has been discussed. Results show that V braces and inverted V braces are close in improving dynamic characteristic of structures and more effective than X braces; X braces the displacement and story drift ratio are slightly smaller than those of V braces and inverted V braces. The analysis results can be used for reference in structure selection for project planner.

Keywords : Centrically braced steel frame; Vibration property; Finite element method; Seismic performance; Nonlinear time history analysis.

[1] G. Liu, K. Y. Lee, and H. F. Jordan, “TDM and TWDM de Bruijn networks and shufflenets for optical communications”, IEEE Trans. Comp., vol. 46, no. 4, pp. 695-701, June 1997.
[2] X. M. Cao, Z. G. Mo, T. J. Ren, “Experimental research on confined concrete columns with super-high axial compression ratio under cyclic loading”, Journal of Building Structures, vol. 33, no. 10, pp. 102-109, October 2012.
[3] J. F. Yang, Q. Gu, H. Wang, Y. L. Peng, “Research on Pushover test of inverted-V concentrically braced steel frame”, Journal of Xi’an university of Architecture and Technology (Natural Science Edition), vol. 44 no. 5, pp. 656-662, May 2010.
[4] Z. Fan, “The characteristics of light steel structure in China”, Beijing: China Building Industry Press, 2011.
[5] X. H. Zhou, “Multilayer light residential structure system and the design”, Industrial Architecture, vol. 17, no. 4, pp. 634-50, April 2012.
[6] S. J. Li, X. P. Wang, “Shaking Table Test of a Full Size Two-story New Kind Light Steel House”, Journal of Wuhan university of technology, vol. 32, no. 2, pp. 47-51, February 2010.
[7] M. G. Wang, “Light steel structure residential building”, Beijing: China building industry press, 2011.
[8] F. M. Mo, Y. Z. Huang, “A brief analysis of multilayer structure of civil steel structure housing system”, Silicon Valley, vol. 13, no. 8, pp. 133-135, August 2010.
[9] H. Tian, “Discussion on the application of light steel structure building and the developing situation in China”, Construction and Budget, vol. 9, no. 5, pp. 43-44, May 2013.