Comparison between Seismic Response of CSPSW and SPSW to Nonlinear Excitations

Document Type: Original Article

Authors

1 M.Sc. student, University of Bonab, Bonab, Iran

2 Assistant professor, Department of Civil Engineering, Azarshahr Branch, Islamic Azad University, Azarshahr, Iran

Abstract

Recently, the application of Composite Steel Plate Shear Walls (CSPSWs) and Steel Plate Shear Walls (SPSWs) as lateral load-resisting systems has been developed. These systems should be resistant enough, ductile, and stiffened to support against different types of excitations. In this work, the seismic performance of these two systems is investigated under different near- and far- field inputs. Strip elements are employed to model the CSPSW and SPSW in SAP2000. An experimental result of CSPSW is first verified. A six story building frame equipped with both systems is then modeled and six different far and near field seismic records are applied to the building frame. Nonlinear Time History Analyses (NTHAs) are conducted based on different maximum ground acceleration levels. Based on the results, appropriate seismic performance of CSPSWs can be clearly observed. CSPSW are also able to decrease relative story displacements more than SPSW More precisely, CSPSWs experience Life Safety (LS) performance level or at least Collapse Prevention (CP) performance level while SPSWs fully collapse.

Keywords


[1]- Zhao, Q. and A. Astaneh-Asl., 2004, Cyclic behavior of traditional and innovative composite shear walls, Journal of Structural Engineering, 130, 2, 271-284.

[2]- Tsai, K. C., Lin, Y. C. and Lin, C. H., 2006, Seismic responses and design of steel plate shear wall, The Proc. of The fourth Cross-Strait and Hong Kong Conference on Steel Structures, Shanghai, 108-116.

[3]- Gao H., 2007, Experimental and Theoretical Studies on Composite Steel Plate Shear Walls, A dissertation submitted to Tongji University in conformity with the requirements for the degree of Master, Shanghai, China.

[4]-Thorburn, L. J., Kulak, G. L., and Montgomery, C. J., 2003, Analysis of steel plate shear walls, Structural Engineering Report. No. 107, Depart. of Civil Engrg., University of Alberta, Canada.

[5]-Driver, R. G., Kulak, G. L., Elwi, A. E. and Kennedy, D. J. L., 1998, FE and simplified models of steel plate shear wall, ASCE Journal of Structure Engineering 124, 2, 121-30.

[6]- Taherian, I., Ghalehnovi, M., and Jahangir, H., 2015, Analytical Study on Composite Steel Plate Walls Using A Modified Strip Model, In 7th International Conference on seismology and Earthquake Engineering.

[7]- Berman, J. and Bruneau, M., 2003, Plastic analysis and design of steel plate shear walls, Journal of Structural Engineering 129, 11, 1448-1456.

[8]-AISC, 2005, Seismic Provisions for Structural Steel Buildings,AISC, Chicago, USA.

[9]- Iranian code of practice for resistant design of buildings, 2015, Iranian code of practice for seismic resistant design of buildings, BHRC–PN S-253 known as Standard No. 2800. Road, Housing, and Urban Development Research Center, Tehran, Iran.