Advanced Steel Construction

Vol. 6, No. 2, pp. 722-741 (2010)


DYNAMIC NUMERICAL SIMULATION OF STEEL FRAME-TYPED PIERS INSTALLED WITH SMA DAMPING DEVICES BASED ON MULTI-LINEAR ONE DIMENSIONAL CONSTITUTIVE MODEL

 

Xiao-Qun Luo 1,2 , Hanbin Ge 3,* and Tsutomu Usami 4

1 Post doctoral researcher, Advanced Research Center for Seismic Experiments and Computations, Meijo University Shiogamaguchi, Tempaku-ku, Nagoya, 468-8502, Japan

2 Lecturer, Department of Building Engineering, Tongji University, No. 1239, Sipin Road, Shanghai, 200092, China.

3 Professor, Dept. of Civil Engineering, Meijo University Shiogamaguchi, Tempaku-ku, Nagoya, 468-8502, Japan. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

4 Professor, Dept. of Civil Engineering, Meijo University Shiogamaguchi, Tempaku-ku, Nagoya, 468-8502, Japan. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. )

 

Received: 10 February 2009; Revised: 13 July 2009; Accepted: 10 August 2009

DOI:10.18057/IJASC.2010.6.2.4

 

ABSTRACT:

In this paper, the effectiveness of seismic performance upgrading is studied by adoption of damping devices made of shape memory alloys (SMAs). An axial-type SMA damper is constructed and modeled on the basis of a modified multi-linear one dimensional constitutive model of SMAs. Time history analyses are carried out on typical steel frames with SMA damping devices. Performance parameters for seismic performance upgrading are investigated in consideration of four influence factors, i.e., strength ratio, martensite fraction, length ratio, and ground motion. Dynamic analyses of bare frames and frames with equivalent BRB dampers are also conducted for comparisons. Numerical investigations show that excellent re-centering ability and energy dissipation can be afforded by installing SMA damping devices in structures.

 

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