Seismic Resilience of Deteriorating Concrete Structures
Seismic Resilience of Deteriorating Concrete Structures
复制标题
劣化混凝土结构的抗震能力
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
D. Frangopol
中科院分区：
文献类型：
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作者：
A. Titi;F. Biondini;D. Frangopol
提出了一种腐蚀条件下混凝土结构地震恢复力寿命评估的概率方法。抗震能力被假定为随时间变化的功能指标和地震恢复力进行评估的基础上，一个合适的分析表示的功能恢复配置文件。所提出的方法被应用到一个四跨连续桥箱形截面桥墩暴露于腐蚀。进行参数分析，以突出回收过程的主要因素的影响。结果表明，结构退化的不利影响可能会影响恢复过程的有效性，并导致随着时间的推移，地震恢复力的不确定性显着增加。
A probabilistic approach to lifetime assessment of seismic resilience of concrete structures under corrosion is presented. The seismic capacity is assumed as time-variant functionality indicator and the seismic resilience is evaluated based on a suitable analytical representation of the functionality recovery profile. The proposed approach is applied to a four-span continuous bridge with box cross-section piers exposed to corrosion. A parametric analysis is performed to highlight the influence of the main factors of the recovery process. The results show that the detrimental effects of structural deterioration may affect the effectiveness of the recovery process and lead over time to a significant increase of uncertainty of the seismic resilience.