The Effects of Bolt Spacing on Composite Shear Wall Behavior

Authors: Amir Ayazi, Hamde Ahmadi, Soheil Shafaei

Abstract:

Composite steel shear wall is a lateral load resisting system which consists of a steel plate with concrete wall attached to one or both sides to prevent it from elastic buckling. The composite behavior is ensured by utilizing high-strength bolts. This paper investigates the effect of distance between bolts, and for this purpose 14 one-story one-bay specimens with various bolts spacing were modeled by finite element code which is developed by the authors. To verify the model, numerical results were compared with a valid experiment which illustrate proper agreement. Results depict increasing the distance between bolts would improve the seismic ever, this increase must be limited, because of large distances will cause widespread buckling of the steel plate in free subpanels between bolts and would result in no improvement. By comparing the results in elastic region, it was observed initial stiffness is not affected by changing the distance.

Keywords: Composite steel shear wall, bolt, buckling, finite element.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1055847

References:

[1] A. Astaneh-Asl, Seismic behavior and design of composite steel shear walls. Steel TIPS Report, Structural Steel Educational Council, 2002, Moraga, California.
[2] F. Hatami, A. Rahai, Performance evaluation of composite shear wall behavior under cyclic loadings. Journal of constructional steel research, 2009; 65; 1528-37.
[3] F. Hatami, Performance evaluation and optimization of composite shear wall. Ph.D. Thesis, Amirkabir University of Technology, 2008, Tehran, Iran.
[4] A. Arabzadeh, M. Soltani, A. Ayazi, Experimental investigation of composite shear walls under shear loadings. Journal of thin-walled structures. 2011, Vol 49, pp 842-854
[5] XB. Ma, SM. Zhang, LH. Guo, N. Guan, Simplified model of steelconcrete composite shear wall with two-side connection. Journal of Xi-an university of Agriculture and Technology. 2009, Vol 41, 352-357.
[6] P. Seide, Compressive buckling of a long simply supported plate on an elastic foundation. Journal of the aeronautical Sciences. June 1958, 382-395.
[7] X. Ma, J. Butterworth, C. Clifton, Shear buckling of infinite plates resting on tensionless elastic foundations. European Journal of Mechanics A/Solid. 30, 2011, 1024-1027.
[8] K.W. Shahwan, A.M. Waas, A mechanical model for the buckling of unilaterally constrained rectangular plates. International journal of solids and structures. 1994,31,75-87
[9] X. Ma, J.W. Butterworth, C. Clifton, Compressive buckling analysis of plates in unilateral contact. International journal of solids and structures 44. 2007, 2852-2862.
[10] Jian Cai, Yue-ling Long. Local buckling of steel plates in rectangular CFT columns with binding bars. Journal of Constructional Steel Research. 65, 2009, 965-972.
[11] A. Arabzadeh, H. Moharrami, A. Ayazi, Local elastic buckling coefficients of steel plates in composite steel plate shear wall. Journal of Scientia Iranica A, 2011, 18(1), 9-15.
[12] C. Salmon, J. Johnson, Steel structures Design and behavior, emphasizing load and resistance factor design, 4th Edition, HarperCollins College Publisher Inc., 1996, New York.
[13] Q. Zhao, Experimental and analytical studies of cyclic behavior of steel and composite shear wall system. Ph.D. Thesis, 2006, Civil and environmental Engineering, University of California, Berkeley.
[14] AISC. Seismic provisions for structural steel buildings. American Institute of Steel Construction, Chicago (IL), 2005.
[15] S. Sabouri-Ghomi, lateral load resisting systems: An introduction to steel shear walls, Anghizeh publishing Ltd, 2002, Tehran, Iran
[In Persian].
[16] ACI 318-08. Building code requirements for structural concrete and commentary. American Concrete Institute, Farmington Hall, MI, 2008.