Structural Engineering and Mechanics

  • 제11권3호
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  • Pages.273-286
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  • 2001
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Shaking table study of a 2/5 scale steel frame with new viscoelastic dampers

  • Chang, K.C. (Department of Civil Engineering, National Taiwan University) ;
  • Tsai, M.H. (Department of Civil Engineering, National Taiwan University) ;
  • Lai, M.L. (3M Company)
  • 발행 : 2001.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

Viscoelastic (VE) dampers have shown to be capable of providing structures with considerable additional damping to reduce the dynamic response of structures. However, the VE material appears to be sensitive to the variations in ambient temperature and vibration frequency. To minimize these effects, a new VE material has been developed. This new material shows less sensitivity to variations in vibration frequency and temperature. However, it is highly dependent on the shear strain. Experimental studies on the seismic behavior of a 2/5 scale five-story steel frame with these new VE dampers have been carried out. Test results show that the structural response can be effectively reduced due to the added stiffness and damping provided by the new type of VE dampers under both mild and strong earthquake ground motions. In addition, analytical studies have been carried out to describe the strain-dependent behavior of the VE damper. The dynamic properties and hysteresis behavior of the dampers can be simulated by a simple bilinear model based on the equivalent dissipated energy principle proposed in this study.

키워드

과제정보

연구 과제 주관 기관 : National Science Council of Taiwan

참고문헌

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  2. Experimentally validated FEA models of HF2V damage free steel connections for use in full structural analyses vol.37, pp.4, 2001, https://doi.org/10.12989/sem.2011.37.4.385