Parametric study on damage control design of SMA dampers in frame-typed steel piers

2009, Volume 3, Issue 4

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Frontiers of Structural and Civil Engineering >> 2009, Volume 3, Issue 4 doi: 10.1007/s11709-009-0065-7

Parametric study on damage control design of SMA dampers in frame-typed steel piers

1.Advanced Research Center for Seismic Experiments and Computations, Meijo University, Nagoya 468-8502, Japan；Department of Building Engineering, Tongji University, Shanghai 200092, China; 2.Department of Civil Engineering, Meijo University, Nagoya 468-8502, Japan;

Available online: 2009-12-05

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Abstract

This paper focuses on damage control design of SMA dampers in steel frame piers. A parametric study based on time history analyses is carried out on frame-typed bridge piers with axial-type SMA damping device. The parameters examined are design parameters of strength ratio and stiffness ratio . Seismic performance indexes on displacement and strain are investigated under three JRA recommended Level 2 Ground Type П strong earthquake motions. Design recommendations are suggested following the results of the parametric study.

Keywords

damage control design ; shape memory alloy ; parameter study ; displacement-based verification ; strain-based verification ; time history analysis

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