Characterization of Ductility and Inelastic Displacement Demand in Base-Isolated Structures Considering Cyclic Degradation

2017 ◽  
Vol 23 (4) ◽  
pp. 557-591 ◽  
Author(s):  
Saman Yaghmaei-Sabegh ◽  
Sina Safari ◽  
Karim Abdolmohammad-Ghayouri
Keyword(s):  
Inelastic Displacement ◽  
Isolated Structures ◽  
Displacement Demand ◽  
Cyclic Degradation

scholarly journals Inelastic Displacement Ratios for Evaluation of Degrading Peak – Oriented SDOF Systems

2017 ◽  
Vol 62 (1) ◽  
pp. 33-47 ◽  
Author(s):  
Muzaffer Borekci ◽  
Murat S. Kirçil ◽  
Ibrahim Ekiz
Keyword(s):  
Dynamic Instability ◽  
Time History ◽  
Nonlinear Time History Analysis ◽  
Elastic Displacement ◽  
Hysteretic Model ◽  
Collapse Potential ◽  
Inelastic Displacement ◽  
The Mean ◽  
Displacement Demand ◽  
Inelastic Displacement Ratio

Estimation of the inelastic displacement demand (IDD) is an important part of the performance-based design. Coefficient method is one of the methods for the estimation of IDD and in this method, IDD is determined by multiplying elastic displacement demand with inelastic displacement ratio (CR ). Previous researches showed that structures deteriorate and also exhibit dynamic instability under severe earthquakes and these behaviors should be considered in the estimation of CR to estimate a reliable IDD. In this study, CR of the non-degrading bilinear hysteretic model and the degrading peak-oriented hysteretic model with collapse potential were determined and effects of degradation on IDD were investigated. Nonlinear time history analysis of SDOF systems were performed using considered hysteretic models. Furthermore a new equation is proposed for the mean CR of degrading SDOF systems. Also, effect of local site conditions and post-yield stiffness on the mean CR of degrading SDOF systems were investigated.

Characterization of displacement demand for elastic and inelastic SDOF systems

2003 ◽  
Vol 23 (6) ◽  
pp. 455-471 ◽  
Author(s):  
Luis D. Decanini ◽  
Laura Liberatore ◽  
Fabrizio Mollaioli
Keyword(s):  
Displacement Demand

Effect of tuned mass damper on displacement demand of base-isolated structures

2008 ◽  
Vol 30 (12) ◽  
pp. 3478-3488 ◽  
Author(s):  
Tomoyo Taniguchi ◽  
Armen Der Kiureghian ◽  
Mikayel Melkumyan
Keyword(s):  
Tuned Mass Damper ◽  
Mass Damper ◽  
Isolated Structures ◽  
Displacement Demand

Estimation of inelastic displacement ratio for base-isolated structures

2017 ◽  
Vol 47 (3) ◽  
pp. 634-659 ◽  
Author(s):  
Saman Yaghmaei-Sabegh ◽  
Sina Safari ◽  
Karim Abdolmohammad Ghayouri
Keyword(s):  
Inelastic Displacement ◽  
Displacement Ratio ◽  
Isolated Structures ◽  
Inelastic Displacement Ratio
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