چکیده مقاله
Bridges are known as a critical component of transportation networks, which are vulnerable due to exposure to natural hazards In addition, degradation mechanisms can considerably affect the functionality of bridges during their service life Therefore, accumulated damage could arise continuously because of seismic loading and structural deterioration, which consequently can modify system resilience over its life cycle This study presents a probabilistic methodology to systematically evaluate and develop the time dependent seismic resilience curves for RC piers of bridges under chloride attacks Furthermore, CFRP with different thicknesses is chosen for retrofitting In each case, the time dependent seismic fragility curves for calculating the time dependent seismic resilience curves are established through PSDMs by performing IDAs Finally, the time dependent seismic resilience curves are evaluated based on the time dependent seismic fragility curves using the restoration function for all retrofit strategies by considering the effect of structural deterioration over time The results indicate that aging, earthquake intensities, and retrofit strategies undeniably affect the time variant seismic resilience of bridges, which are helpful for the long term safety and reliability
کلیدواژهها
نویسندگان
Pedram Omidian
Faculty of Civil and Environmental Engineering, Tarbiat Modares University, P O Box ۱۴۱۱۵–۳۹۷,Tehran, Iran
Naser Khaji
Civil and Environmental Engineering Program, Graduate School of Advanced Science andEngineering, Hiroshima University, ۱ ۴ ۱, Kagamiyama, Higashi Hiroshima, Hiroshima ۷۳۹ ۸۵۲۷,Japan
Ali Akbar Aghakouchak
Faculty of Civil and Environmental Engineering, Tarbiat Modares University, P O Box ۱۴۱۱۵–۳۹۷,Tehran, Iran
شیوه ارجاع
Omidian, Pedram and Khaji, Naser and Aghakouchak, Ali Akbar,1402,Proposing a probabilistic seismic time-dependent resilience assessment framework of aging bridges considering retrofitting,13th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات سیزدهمین کنگره بین المللی مهندسی عمران25 مهر 1402 · تهران