Bio-Inspired Passive Optimized Base-Isolation System for Seismic Mitigation of Building Structures

AbstractAn energy dissipation mechanism of abalone shells, called sacrificial bonds and hidden length, is simulated and proposed to develop new strategies for base isolation. The concept of integrating this novel energy dispersion mechanism into a conventional linear isolator is proposed. A systematic parametric study is performed to evaluate the influences of the properties of both the isolation layer and the structure on the structural seismic responses to a series of earthquake records. Using the insights gained from the parametric study, an optimization procedure for designing such a bio-inspired isolator is presented based on the multiobjective optimization approach. To demonstrate the advantages of this idea, the optimized bio-inspired isolation system is numerically investigated by first comparing it with the passive isolators such as a high-damping linear isolator and a lead rubber bearing system. The proposed isolator is found to have superior performance to conventional passive isolation systems...

[1]  Felix Weber,et al.  Optimal semi-active damping of cables : evolutionary algorithms and closed-form solutions , 2009 .

[2]  P K Hansma,et al.  Sacrificial bonds in the interfibrillar matrix of bone. , 2005, Journal of musculoskeletal & neuronal interactions.

[3]  Stefan Hurlebaus,et al.  Adaptive control of base-isolated structures against near-field earthquakes using variable friction dampers , 2011 .

[4]  Rainer Storn,et al.  Differential Evolution – A Simple and Efficient Heuristic for global Optimization over Continuous Spaces , 1997, J. Glob. Optim..

[5]  Daolin Xu,et al.  Theoretical and experimental analyses of a nonlinear magnetic vibration isolator with quasi-zero-stiffness characteristic , 2013 .

[6]  B. F. Spencer,et al.  STATE OF THE ART OF STRUCTURAL CONTROL , 2003 .

[7]  James M. Kelly,et al.  Earthquake-Resistant Design with Rubber , 1993 .

[8]  Henri P. Gavin,et al.  Performance and reliability of semi-active equipment isolation , 2007 .

[9]  Jasbir S. Arora,et al.  Survey of multi-objective optimization methods for engineering , 2004 .

[10]  Andrei M. Reinhorn,et al.  Control of Sliding-Isolated Buildings Using Sliding-Mode Control , 1996 .

[11]  Erik A. Johnson,et al.  "SMART" BASE ISOLATION SYSTEMS , 2000 .

[12]  Hirokazu Iemura,et al.  Passive and semi‐active seismic response control of a cable‐stayed bridge , 2002 .

[13]  Gregory L. Fenves,et al.  Feasibility Assessment of an Innovative Isolation Bearing System with Shape Memory Alloys , 2009 .

[14]  Alex H. Barbat,et al.  Active Control of Nonlinear Base-Isolated Buildings , 1995 .

[15]  Mohammed Ismail,et al.  An isolation device for near‐fault ground motions , 2014 .

[16]  Steve Eugene Watkins,et al.  An overview of biomimetic sensor technology , 2009 .

[17]  Daniel Bridges,et al.  Bio-inspired passive actuator simulating an abalone shell mechanism for structural control , 2010 .

[18]  Erik A. Johnson,et al.  "Smart" base isolation systems , 2000 .

[19]  Farzad Naeim,et al.  Design of seismic isolated structures : from theory to practice , 1999 .

[20]  Francesc Pozo Montero,et al.  An isolation device for near-fault ground motions , 2013 .

[21]  F. Barth,et al.  Biomaterial systems for mechanosensing and actuation , 2009, Nature.

[22]  Erik A. Johnson,et al.  Structural control benchmark problem: Phase II—Nonlinear smart base-isolated building subjected to near-fault earthquakes , 2008 .

[23]  Subrata Chakraborty,et al.  Performance assessment of buildings isolated by shape‐memory‐alloy rubber bearing: Comparison with elastomeric bearing under near‐fault earthquakes , 2014 .

[24]  Theodor Freiheit,et al.  Modified game theory approach to multiobjective optimization , 1988 .

[25]  Reza Langari,et al.  Novel bio-inspired smart control for hazard mitigation of civil structures , 2010 .

[26]  G. W. Housner,et al.  Limit Design of Structures to Resist Earthquakes , 1956 .

[27]  R. S. Jangid,et al.  Base isolation for near‐fault motions , 2001 .

[28]  Eunsoo Choi,et al.  An isolation bearing for highway bridges using shape memory alloys , 2006 .

[29]  E. C. Zacharenakis,et al.  Active control schemes for aseismic base-isolated structures , 2002 .