scholarly journals Endurance time method for multi-component analysis of steel elastic moment frames

2011 ◽  
Vol 18 (2) ◽  
pp. 139-149 ◽  
Author(s):  
V. Valamanesh ◽  
H.E. Estekanchi
Keyword(s):  
Component Analysis ◽  
Moment Frames ◽  
Endurance Time ◽  
Endurance Time Method

scholarly journals Evaluating Performance of Concrete Special Moment Resisting Frames with Different Seismic Coefficients Using Endurance Time Method

2018 ◽  
Vol 4 (1) ◽  
pp. 93 ◽  
Author(s):  
Hadi Radmanesh ◽  
Majid Mohammadi
Keyword(s):  
Performance Level ◽  
Cost Ratio ◽  
Optimum Structure ◽  
Moment Frames ◽  
Endurance Time ◽  
Lower Weight ◽  
Seismic Coefficient ◽  
Endurance Time Method ◽  
Moment Resisting ◽  
Real Earthquake

This performance-based study was conducted to investigate the effects of seismic coefficients on performance of concrete special moment frames of 5,7, and 10-storey buildings located in Tehran, Iran. The structures are designed three-dimensionally by ETABS 2016 software according to ACI-318-08. Fifteen specimens were designed with different base shears having seismic coefficients of 0.7, 0.85, 1, 1.15, and 1.30 times the proposed value of Iranian Standard 2800, (i.e. decreased by 70 and 85%, and increased by 115 and 130%). Endurance time method (ETA20in series of ET acceleration function) as well as three real earthquake records was employed to evaluate the seismic performance of the modeled structures. The performance of structures was compared by the time of the first plastic hinges formation in beams and columns, the time of entering to nonlinear region and the time of experiencing storey drift of 2% corresponding to the life safety performance level. It was observed that the results of ET records and real records were similar to each other. A procedure was proposed for finding optimum structure with lower weight using ET method through defining efficient ratio (ER) and cost ratio (CR). Based on the results of ER/CR ratio and considering the importance of collapse prevention performance level, optimum structure was a 7-storey structure with lower weight or cost whose seismic coefficient had been reduced by 70%. It was concluded that high safety can not be achieved simply by increasing the seismic coefficient of structures.

Estimating structural damage of steel moment frames by Endurance Time method

2008 ◽  
Vol 64 (2) ◽  
pp. 145-155 ◽  
Author(s):  
H.E. Estekanchi ◽  
K. Arjomandi ◽  
A. Vafai
Keyword(s):  
Structural Damage ◽  
Moment Frames ◽  
Steel Moment Frames ◽  
Endurance Time ◽  
Endurance Time Method

scholarly journals Application of endurance time method in damage assessment of concrete moment frames

2020 ◽  
Vol 5 (2) ◽  
pp. 1-11
Author(s):  
A. Baniassadi ◽  
H. Estekanchi ◽  
◽  
Keyword(s):  
Damage Assessment ◽  
Moment Frames ◽  
Endurance Time ◽  
Endurance Time Method

Collapse assessment of steel moment frames using endurance time method

2015 ◽  
Vol 14 (2) ◽  
pp. 347-360 ◽  
Author(s):  
E. Rahimi ◽  
H. E. Estekanchi
Keyword(s):  
Moment Frames ◽  
Steel Moment Frames ◽  
Endurance Time ◽  
Endurance Time Method ◽  
Collapse Assessment

Quantifying seismic response uncertainty of electrical substation structures using endurance time method

Structures ◽  
2021 ◽  
Vol 30 ◽  
pp. 838-849
Author(s):  
Amir Ghahremani Baghmisheh ◽  
Homayoon E. Estekanchi
Keyword(s):  
Seismic Response ◽  
Response Uncertainty ◽  
Endurance Time ◽  
Endurance Time Method ◽  
Electrical Substation

An endurance time method-based fragility analysis framework for cable-stayed bridge systems under scour and earthquake

2021 ◽  
Vol 232 ◽  
pp. 109128
Author(s):  
Kai Wei ◽  
Haifeng He ◽  
Jiarui Zhang ◽  
Cancan Yang ◽  
Shunquan Qin
Keyword(s):  
Fragility Analysis ◽  
Analysis Framework ◽  
Endurance Time ◽  
Cable Stayed Bridge ◽  
Endurance Time Method
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