A superelastic viscous damper for enhanced seismic performance of steel moment frames

Abstract This study proposes a hybrid passive control device and investigates its performance in improving response of steel frame structures subjected to multi-level seismic hazards. The proposed superelastic viscous damper (SVD) relies on shape memory alloy (SMA) cables for re-centering capability and employs a viscoelastic (VE) damper that consists of two layers of a high damped (HD) blended butyl elastomer compound to augment its energy dissipation capacity. First, experimental tests are conducted to characterize behavior of SMA cables and VE damper and to assess the influence of various parameters such as displacement amplitude and loading frequency on their mechanical response. Then, an analytical model of a six-story steel special moment frame building with the installed SVDs is developed to determine the dynamic response of the structure. Nonlinear response history analyses are conducted to evaluate the behavior of controlled and uncontrolled buildings under 44 ground motion records. Results shows that SVDs can effectively mitigate dynamic response of steel frame structures at different seismic hazard levels and enhance their post-earthquake functionality.

[1]  Luís C. Neves,et al.  Application of Reliability-Based Robustness Assessment of Steel Moment Resisting Frame Structures under Post-Mainshock Cascading Events , 2014 .

[2]  Luis Ibarra,et al.  Hysteretic models that incorporate strength and stiffness deterioration , 2005 .

[3]  L. Lowes,et al.  Modeling Reinforced-Concrete Beam-Column Joints Subjected to Cyclic Loading , 2003 .

[4]  Michael Pollino,et al.  Development of a Seismic Isolation System for Commercial Storage Racks , 2012 .

[5]  Edward Cohen,et al.  Minimum Design Loads for Buildings and Other Structures , 1990 .

[6]  James M. Ricles,et al.  Simplified design procedure for frame buildings with viscoelastic or elastomeric structural dampers , 2005 .

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

[8]  Chen Qiao-sheng,et al.  A Brief Introduction of FEMA P695—Quantification of Building Seismic Performance Factors , 2013 .

[9]  Reginald DesRoches,et al.  Seismic Vibration Control Using Superelastic Shape Memory Alloys , 2006 .

[10]  Richard Sause,et al.  Advanced compressed elastomer dampers for earthquake hazard reduction to steel frames , 2012 .

[11]  Stefan Hurlebaus,et al.  Application of an SMA‐based hybrid control device to 20‐story nonlinear benchmark building , 2012 .

[12]  Zhao-Dong Xu,et al.  Model, tests and application design for viscoelastic dampers , 2011 .

[13]  Dimitrios G. Lignos,et al.  A Database in Support of Modeling of Component Deterioration for Collapse Prediction of Steel Frame Structures , 2007 .

[14]  John A. Shaw,et al.  Superelastic shape memory alloy cables: Part I – Isothermal tension experiments , 2013 .

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

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

[17]  Stefan Hurlebaus,et al.  Neuro-fuzzy Modeling of Temperature- and Strain-rate-dependent Behavior of NiTi Shape Memory Alloys for Seismic Applications , 2010 .

[18]  Shannon K. Sweeney,et al.  Collaborative Product Realization of an Innovative Structural Damper and Application , 2006 .

[19]  Stefan Hurlebaus,et al.  Re-centering variable friction device for vibration control of structures subjected to near-field earthquakes , 2011 .

[20]  Kenneth W. Campbell,et al.  PACIFIC EARTHQUAKE ENGINEERING Analysis of Cumulative Absolute Velocity (CAV) and JMA Instrumental Seismic Intensity (I JMA ) Using the PEER-NGA Strong Motion Database , 2010 .

[21]  Matthew R. Eatherton,et al.  Development and experimental validation of a nickel–titanium shape memory alloy self-centering buckling-restrained brace , 2012 .

[22]  Zhao-Dong Xu,et al.  Earthquake Mitigation Study on Viscoelastic Dampers for Reinforced Concrete Structures , 2007 .

[23]  Osman E. Ozbulut,et al.  Shape Memory Alloy Cables for Civil Infrastructure Systems , 2014 .

[24]  James M. Ricles,et al.  Performance-Based Seismic Design of Steel MRFs with Elastomeric Dampers , 2009 .

[25]  Takayuki Sone,et al.  Damping systems that are effective over a wide range of displacement amplitudes using metallic yielding component and viscoelastic damper in series , 2014 .

[26]  Adam J Crewe,et al.  Passive Energy Dissipation Systems in Structural Engineering , 1998 .

[27]  Hanbin Ge,et al.  Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames , 2012 .

[28]  Andrew S. Whittaker,et al.  Energy dissipation systems for seismic applications: Current practice and recent developments , 2008 .

[29]  T. T. Soong,et al.  SEISMIC BEHAVIOR OF STEEL FRAME WITH ADDED VISCOELASTIC DAMPERS , 1996 .

[30]  Finley A. Charney,et al.  Seismic response of steel frame structures with hybrid passive control systems , 2012 .