Fragility Assessment for Torsionally Asymmetric Buildings in Plan
The present paper aims at evaluating the response of three-dimensional buildings with in-plan stiffness irregularities that have been subjected to two-way excitation ground motion records simultaneously. This study is broadly-based fragility assessment with greater emphasis on structural response at in-plan flexible and stiff sides. To this end, three type of three-dimensional 5-story steel building structures with stiffness eccentricities, were subjected to extensive nonlinear incremental dynamic analyses (IDA) utilizing Ibarra-Krawinkler deterioration models. Fragility assessment was implemented for different configurations of braces to investigate the losses in buildings with center of resisting (CR) eccentricities.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1126912Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1004
 National Institute of Building Sciences. Development of a standardized earthquake loss estimation methodology. Washington (DC): FEMA; (1995).
 Jalayer F. “Direct probabilistic seismic analysis: implementing nonlinear dynamic assessments” Ph.D. Dissertation, Department of Civil and Environmental Engineering, Stanford University, Stanford, California, (2003).
 Ibarra LF, Medina RA, Krawinkler H. “Hysteretic models that incorporate strength and stiffness deterioration.” International Journal for Earthquake Engineering and Structural Dynamics, Vol. 34, No.12, pp. 1489-1511 (2005).
 Zareian F, Medina RA. “A practical method for proper modeling of structural damping in inelastic plane structural systems.” Journal of Computers and Structures, 88, 45-53 (2010).
 Vamvatsikos D, Cornell CA. Tracing and post-processing of IDA curves: Theory and software implementation, Report No. RMS–44, RMS Program, Stanford University, Stanford (2001).
 Mario de Stefano, Barbara Pintucchi, “A review of research on seismic behavior of irregular building structures” (2008).
 Paulay T. “Some Design Principles relevant to Torsional Phenomena in Ductile Buildings”. Journal of Earthquake Engineering, 5:3, 273-308 (2001).
 Wong CM, Tso WK. “Inelastic seismic response of torsionally unbalanced systems designed using elastic dynamic analysis”. Earthquake Engineering and Structural Dynamics, 23, 7, pp. 777-79 (1994).
 Dimitrios Vamvatsikos, Allin Cornell, Incremental Dynamic Analysis, John Wiley & Sons (2002).
 Haj seiyed Taghia, Abdoreza S. Moghadam, Ashtiany, Seismic performance of torsionally stiff and flexible multi-story concentrically steel braced buildings, (2012).
 Salar manie, Abdoreza S. Moghadam, Ashtiany, Probabilistic Response Evaluation of Plan-Irregular Buildings Subjected to Bi-directional Seismic Loading, (2014).
 Yasser picazo, Orlando Diaz Lopez, Luis Esteva, Seismic reliability analysis of buildings with torsional eccentricities, (2014).
 Silvia Mazzoni, Frank McKenna, Michael H. Scott, Gregory L. Fenves et al. 2007, Open System for Earthquake Simulation(OPENSEES) Language Manual
 Barron-Corvera, 2000, Spectral Evaluation of Seismic Fragility in Structures
 Keith Porter, Ron Hamburger, Practical Development and Application of Fragility Functions, (2007).
 Seong hoon, amr Elnashai, Fragility relationships for torsionally-imbalanced buildings using three-dimensional damage characterization, (2006).
 Multi-Hazard Loss Estimation Methodology Earthquake Model, HAZUS MR4, Technical Manual