Parameters Analysis of Re-Centring SMA Damper Based on SAP2000

Abstract:

According to the working mechanism of re-centring SMA damper, restoring force model is established. Based on the mechanical model, the re-centring SMA damper is modeled in finite element software SAP2000 by adding Multi-Linear element and Plastic (Wen) element. Time-history analysis method under different ground motion is used to analyze control parameters of re-centring SMA damper. The influence on damping effect and ability to re-centring of damper of several factors such as the ratio SR of initial stiffness of energy components and stiffness of corresponding structural layer, the ratio β of yield displacement of energy components and yield displacement of corresponding structural layer, the ratio α of the second stiffness and initial stiffness of energy components, the ratio Q of initial restoring force of re-centring group and yield force of corresponding structural layer, and the ratio λ of the second stiffness and initial stiffness of re-centring group were studied. Their reasonable numerical value range are obtained by numerical calculation, the reasonable ranges for SR, β, α, Q and λ are found to be 2~3, 0~0.05, 0~0.1, 0.05~0.10 and 0.05~0.15 respectively.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 219-225
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.219
• Online since: May 2012
• Authors: Yu Hong Ling, Hong Hua Ling
• Keywords: Damping Effect, Energy Dissipation, Re-Centring Damper, Shape Memory Alloy (SMA)

References

[1] P.W. Clark, I.D. Aiken, J.M. Kelly, M. Higashino and R. Krumme, in: Proceedings of SPIE: Smart Structures and Materials Conference, edited by C.D. Johnson/SPIE (1995).

[2] M. Dolce, D. Cardone and R. Marnetto: Earthquake Engng Struct. Dyn. Vol. 29(2000), p.945.

DOI: 10.1002/1096-9845(200007)29:7<945::aid-eqe958>3.0.co;2-#

[3] K. Robert, H. Jack and S. Steve, in: Proceedings of SPIE: Smart Structures and Materials Conference, edited by C.D. Johnson/SPIE (1995).

[4] Hongwei Ma and Chongdu Cho: Materials Science and Engineering A. Vol. 473(2008), p.290.

[5] Yuhong Ling, Huihong Peng and Shuai Zhuang: Journal of South China University of Technology: Natural Science Edition. Vol.38 (2010), p.131 (In Chinese).

[6] Yuhong Ling, Huihong Peng and Shuai Zhuang: Journal of South China University of Technology: Natural Science Edition. Vol.39 (2011), p.119 (In Chinese).

[7] Civil King Software Technology Co., Ltd., China Institute of Building Standard Design & Research: Users' manual of SAP2000 of Chinese version (Communication Press, Beijing 2006) (In Chinese).

[8] Gang Li, Hongnan Li:Vibration and Shock, Vol.25(2006),p.66 (In Chinese).