The energy factor of systems considering multiple yielding stages during ground motions

Abstract This communication focuses on the energy factors of systems considering multiple yielding stages during ground motions. Based on an improved energy-balance model, the energy balance of systems is re-established and the energy factor is derived, considering the multiple yielding stages. To comprehensively investigate the influence of yielding stages and critical parameters on the energy factor, nonlinear dynamic analyses of single-degree-of-freedom systems are performed based on the validated numerical tool. Representative numerical evaluations are presented for different combinations of parameters denoting the yielding stages. The results indicate that the energy factor is significantly influenced by the yielding stages of systems. The results of this study are instructive for the calculation of the energy factor of systems showing multiple yielding stages during ground motions, and can be helpful to improve the current procedures based on the energy-balance concept.

[1]  Gokhan Pekcan,et al.  Damage avoidance design of special truss moment frames with energy dissipating devices , 2009 .

[2]  Michel Bruneau,et al.  Analytical Response and Design of Buildings with Metallic Structural Fuses. I , 2009 .

[3]  Peter Fajfar,et al.  Consistent inelastic design spectra: hysteretic and input energy , 1994 .

[4]  Mihailo D. Trifunac,et al.  Energy of strong motion at earthquake source , 2008 .

[5]  George D. Hatzigeorgiou,et al.  Ductility demand spectra for multiple near- and far-fault earthquakes , 2010 .

[6]  Dipti Ranjan Sahoo,et al.  PERFORMANCE-BASED PLASTIC DESIGN METHOD FOR BUCKLING RESTRAINED BRACED FRAMES , 2010 .

[7]  Subhash C. Goel,et al.  Application of Energy Balance Concept in Seismic Evaluation of Structures , 2009 .

[8]  Gokhan Pekcan,et al.  Enhancing seismic resilience using truss girder frame systems with supplemental devices , 2014 .

[9]  C. Uang,et al.  Evaluation of seismic energy in structures , 1990 .

[10]  Božidar Stojadinović,et al.  Energy-based Seismic Design of Structures using Yield Mechanism and Target Drift , 2002 .

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

[12]  Jinkoo Kim,et al.  Energy-based seismic design of buckling-restrained braced frames using hysteretic energy spectrum , 2006 .

[13]  Gregory A. MacRae,et al.  Residual Displacement Response Spectrum , 1998 .

[14]  Masayoshi Nakashima,et al.  ENERGY INPUT AND DISSIPATION BEHAVIOUR OF STRUCTURES WITH HYSTERETIC DAMPERS , 1996 .

[15]  Finley A. Charney,et al.  HYBRID MOMENT RESISTING STEEL FRAMES , 2008 .

[16]  G. Manfredi.  Evaluation of seismic energy demand , 2001 .

[17]  Yi Jiang,et al.  A modified approach of energy balance concept based multimode pushover analysis to estimate seismic demands for buildings , 2010 .

[18]  W. J. Hall,et al.  Earthquake Energy Absorption in SDOF Structures , 1984 .

[19]  Taner Ucar,et al.  A study on determination of target displacement of RC frames using PSV spectrum and energy-balance concept , 2012 .

[20]  Subhash C. Goel,et al.  Performance-based design and collapse evaluation of Buckling Restrained Knee Braced Truss Moment Frames , 2014 .

[21]  Mamoru Iwata,et al.  Damage-Controlled Structures.I: Preliminary Design Methodology for Seismically Active Regions , 1997 .

[22]  Mihailo D. Trifunac,et al.  A note on strength-reduction factors for design of structures near earthquake faults , 2008 .

[23]  Siddhartha Ghosh,et al.  Performance-based plastic design of steel plate shear walls , 2013 .