Seismic fragility evaluation of various mitigation strategies proposed for bridge piers

Structures ◽  
2021 ◽  
Vol 33 ◽  
pp. 1892-1905
Author(s):  
M. Salkhordeh ◽  
E. Govahi ◽  
M. Mirtaheri
Keyword(s):  
Mitigation Strategies ◽  
Bridge Piers ◽  
Seismic Fragility

Cyclic performance of different mitigation strategies proposed for segmental precast bridge piers

Structures ◽  
2022 ◽  
Vol 36 ◽  
pp. 344-357
Author(s):  
Ehsan Govahi ◽  
Mojtaba Salkhordeh ◽  
Masoud Mirtaheri
Keyword(s):  
Mitigation Strategies ◽  
Bridge Piers ◽  
Cyclic Performance

A flexure-capacity design method and seismic fragility assessment of FRP/steel double-reinforced bridge piers

2019 ◽  
Vol 16 (9) ◽  
pp. 1311-1325
Author(s):  
Daoguang Jia ◽  
Jize Mao ◽  
Qingyong Guo ◽  
Zailin Yang ◽  
Nailiang Xiang
Keyword(s):  
Design Method ◽  
Bridge Piers ◽  
Seismic Fragility ◽  
Capacity Design ◽  
Flexure Capacity

Seismic fragility assessment of bridge piers incorporating high-strength steel reinforcement and concrete under near-fault ground motions

2020 ◽  
Author(s):  
Saif Aldabagh ◽  
Saqib Khan ◽  
M. Shahria Alam
Keyword(s):  
High Strength Steel ◽  
Load Capacity ◽  
Fragility Curves ◽  
Time History ◽  
Inelastic Strain ◽  
High Strength ◽  
The United States ◽  
Bridge Piers ◽  
Seismic Fragility ◽  
Damage States

Design codes in the United States and Canada limit the use of high-strength steel (HSS) and high-strength concrete (HSC) to bridge components that are expected to remain elastic during a seismic event. Although HSS and HSC have higher tensile and compressive strengths, respectively, their lower inelastic strain capacities impose for such restrictions. To assess the seismic performance of HSS and HSC, the pier of an existing bridge is redesigned using concrete compressive strength of 50 and 80 MPa, and reinforcement yield strength of 420, 690, and 830 MPa. Static pushover and nonlinear dynamic time-history analyses were performed to generate force-deformation and seismic fragility curves. Bridge piers incorporating HSS and HSC attained the maximum load capacity yet were the least ductile. They were less seismically vulnerable than those incorporating conventional materials at minimal and repairable damage states, but not at extensive and probable replacement damage states.

Seismic fragility analysis of bridge piers using methods of moment

2020 ◽  
Vol 134 ◽  
pp. 106150
Author(s):  
Long-Wen Zhang ◽  
Zhao-Hui Lu ◽  
Cheng Chen
Keyword(s):  
Bridge Piers ◽  
Fragility Analysis ◽  
Seismic Fragility
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