Hybrid Recentering Energy Dissipative Device for Seismic Protection

A hybrid recentering energy dissipative device that has both recentering and energy dissipation capabilities is proposed and studied in this paper. The proposed hybrid device, referred to as the hybrid shape memory alloy (SMA) recentering viscous fluid (RCVF) energy dissipation device, connects the apex of a chevron brace to an adjoining beam using two sets of SMA wires arranged in series on either side of the brace and a viscous fluid damper arranged in parallel with the SMA wires. The viscous damper is used because being a velocity-dependent device it does not exert any force that counteracts the recentering force from the SMA wires after the vibration of the frame ceases. In the numerical study, the Wilde’s SMA constitutive model is used to model the SMA wires, and the Maxwell model is used to simulate the viscous fluid damper. To demonstrate the viability and effectiveness of the proposed hybrid device, comparative studies are performed on several single-story shear frames and a series of four-story steel frames. The results show that the frames equipped with the hybrid device have noticeably smaller peak top story displacements and residual story drifts when subjected to ground motions at three different intensity levels.

[1]  Johnny Sun,et al.  Development of Ground Motion Time Histories for Phase 2 of the FEMA/SAC Steel Project , 1997 .

[2]  M. Matsumoto.  Shape memory alloys. , 1988 .

[3]  Songye Zhu,et al.  Seismic Analysis of Concentrically Braced Frame Systems with Self-Centering Friction Damping Braces , 2008 .

[4]  H. Tobushi,et al.  Superelastic deformation of a TiNi shape memory alloy subjected to various cyclic loadings , 2002 .

[5]  Anil K. Chopra,et al.  Dynamics of Structures: Theory and Applications to Earthquake Engineering , 1995 .

[6]  Chin-Hsiung Loh,et al.  Experimental Investigation of Super-Elastic Semi-Active Damping for Seismically Excited Structures , 2008 .

[7]  Matthew R. Eatherton,et al.  Self-Centering Buckling-Restrained Braces for Advanced Seismic Performance , 2011 .

[8]  Min Liu,et al.  Vibration mitigation of a stay cable with one shape memory alloy damper , 2004 .

[9]  Reginald DesRoches,et al.  Unseating prevention for multiple frame bridges using superelastic devices , 2005 .

[10]  Michael C. Constantinou,et al.  Experimental & Analytical Investigation of Seismic Response of Structures With Supplemental Fluid Viscous Dampers , 1992 .

[11]  Michel Bruneau,et al.  Performance of steel bridges during the 1995 Hyogo-ken Nanbu (Kobe, Japan) earthquake , 1996 .

[12]  Donatello Cardone,et al.  Implementation and testing of passive control devices based on shape memory alloys , 2000 .

[13]  M. D. Martínez-Rodrigo,et al.  An optimum retrofit strategy for moment resisting frames with nonlinear viscous dampers for seismic applications , 2003 .

[14]  Gholamreza Abdollahzadeh,et al.  Response modification factor of dual moment-resistant frame with buckling restrained brace (BRB) , 2013 .

[15]  Songye Zhu,et al.  A shape memory alloy-based reusable hysteretic damper for seismic hazard mitigation , 2007 .

[16]  Achmad Basuki,et al.  Evaluation of the Use of Steel Bracing to Improve Seismic Performance of Reinforced Concrete Building , 2013 .

[17]  E. J. Graesser,et al.  A Proposed Three-Dimensional Constitutive Model for Shape Memory Alloys , 1994 .

[18]  Robert D. Hanson,et al.  Axial Hysteretic Behavior of Steel Members , 1976 .

[19]  Jan Van Humbeeck,et al.  Active and passive damping of noise and vibrations through shape memory alloys: applications and mechanisms , 2005 .

[20]  Roberto T. Leon,et al.  Design and analysis of braced frames with shape memory alloy and energy-absorbing hybrid devices , 2010 .

[21]  G. Song,et al.  A Constitutive Model of Shape Memory Alloys with Consideration of Martensitic Hardening Effect , 2008 .

[22]  Luis Eduardo Pérez-Rocha,et al.  Case studies on the seismic behavior of reinforced concrete chevron braced framed buildings , 2012 .

[23]  Krzysztof Wilde,et al.  Base isolation system with shape memory alloy device for elevated highway bridges , 2000 .

[24]  S. Hurlebaus,et al.  Seismic Response Control Using Shape Memory Alloys: A Review , 2011 .

[25]  Ayman M. Okeil,et al.  Overview of Potential and Existing Applications of Shape Memory Alloys in Bridges , 2011 .

[26]  Jack P. Moehle,et al.  Analytical Collapse Study of Lightly Confined Reinforced Concrete Frames Subjected to Northridge Earthquake Ground Motions , 2008 .

[27]  Roberto T. Leon,et al.  Design of Hybrid Braced Frames , 2010 .

[28]  Andrew S. Whittaker,et al.  Retrofit of pre‐Northridge steel moment‐resisting frames using fluid viscous dampers , 2001 .

[29]  Murat Dicleli,et al.  Seismic performance of chevron braced steel frames with and without viscous fluid dampers as a function of ground motion and damper characteristics , 2007 .