Predicting probabilistic distribution functions of response parameters using the endurance time method

The main objective of this study is the development of endurance time (ET) excitations in order to take structural response uncertainty into account for use in performance‐based earthquake engineering. There are several uncertainties in earthquake engineering, including earthquake occurrence, structural response, damage, and loss. In the current research, structural response uncertainty is directly included in the ET method, which is an analysis method used for performing structural behavior assessment under seismic actions. Conventional practice of the ET method does not provide any information about seismic response distribution. Despite the simplicity of the ET method, it is an accurate dynamic analysis approach in which structures are subjected to predesigned intensifying acceleration functions, also known as ET excitation functions (ETEFs). In this study, the ETEF generating procedure is modified in order to include the exceedance probability of structural responses observed at an intensity measure. This proposed method is applied to generate new ETEFs; then they are utilized in assessing distribution responses in three structure case studies. Finally, response distributions obtained by the ET method are compared with incremental dynamic analysis so as to investigate the proposed method efficiency. Results show that response probabilistic distributions that are predicted using the ET method match those obtained by incremental dynamic analysis.

[1]  Jorge J. Moré,et al.  Computing a Trust Region Step , 1983 .

[2]  Dimitrios Vamvatsikos,et al.  Incremental dynamic analysis , 2002 .

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

[4]  Curt B. Haselton,et al.  Assessing seismic collapse safety of modern reinforced concrete moment frame buildings , 2006 .

[5]  Curt B. Haselton,et al.  Seismic Collapse Safety and Behavior of Modern Reinforced Concrete Moment Frame Buildings , 2007 .

[6]  Jonathan P. Stewart,et al.  An Assessment to Benchmark the Seismic Performance of a Code-Conforming Reinforced-Concrete Moment-Frame Building , 2008 .

[7]  Jack P. Moehle,et al.  Seismic Performance Evaluation of Facilities: Methodology and Implementation , 2009 .

[8]  Matjaz Dolsek,et al.  Incremental dynamic analysis with consideration of modeling uncertainties , 2009 .

[9]  Curt B. Haselton,et al.  Seismic Collapse Safety of Reinforced Concrete Buildings. I: Assessment of Ductile Moment Frames , 2011 .

[10]  Sashi K. Kunnath,et al.  Amplitude-Scaled versus Spectrum-Matched Ground Motions for Seismic Performance Assessment , 2011 .

[11]  Homayoon E. Estekanchi,et al.  Improved methodology for endurance time analysis: From time to seismic hazard return period , 2012 .

[12]  Homayoon E. Estekanchi,et al.  Compatibility of the endurance time method with codified seismic analysis approaches on three‐dimensional analysis of steel frames , 2013 .

[13]  Brendon A. Bradley,et al.  A critical examination of seismic response uncertainty analysis in earthquake engineering , 2013 .

[14]  Mohammad Khanmohammadi,et al.  New Approach for Selection of Real Input Ground Motion Records for Incremental Dynamic Analysis (IDA) , 2015 .

[15]  Hossein Tajmir Riahi,et al.  Seismic collapse assessment of reinforced concrete moment frames using endurance time analysis , 2015 .

[16]  Homayoon E. Estekanchi,et al.  Application of endurance time method in performance-based optimum design of structures , 2015 .

[17]  Saeid Pourzeynali,et al.  Probabilistic seismic loss estimation via endurance time method , 2017, Earthquake Engineering and Engineering Vibration.

[18]  H. Estekanchi,et al.  An investigation on the interaction of moment‐resisting frames and shear walls in RC dual systems using endurance time method , 2018 .

[19]  J. Doh,et al.  Experimental and numerical investigations of axially loaded RC walls restrained on three sides , 2018 .