原文传递
Stochastic Modeling of Deterioration and Time-Variant Performance of Reinforced Concrete Structures under Joint Effects of Earthquakes, Corrosion, and ASR
| 题名： | Stochastic Modeling of Deterioration and Time-Variant Performance of Reinforced Concrete Structures under Joint Effects of Earthquakes, Corrosion, and ASR |
| 正文语种： | eng |
| 作者： | Jia, Gaofeng;Gardoni, Paolo;Trejo, David;Mazarei, Vandad |
| 作者单位： | Colorado State Univ Dept Civil & Environm Engn Ft Collins CO 80523 USA;Univ Illinois Dept Civil & Environm Engn Urbana IL 61801 USA;Oregon State Univ Sch Civil & Construct Engn Corvallis OR 97331 USA;Turner Construct Co 1155 SW Morrison St Suite 600 Portland OR 97205 USA |
| 关键词： | Stochastic deterioration model;Reinforced concrete structures;Earthquake damage;Corrosion;Alkali-silica reaction |
| 摘要： | To assess the time-variant performance of RC structures, it is important to model the various deterioration processes as well as their interactions in addition to the associated uncertainties. Besides earthquakes and corrosion, RC structures can also be subject to deterioration due to alkali-silica reaction (ASR), which could impact the corrosion process. This paper develops a novel deterioration model for RC structures that captures the joint effects of deterioration due to earthquakes, corrosion, and ASR. The model is constructed using a novel stochastic formulation that captures the interaction of different deterioration mechanisms by modeling deterioration as both age/time and state dependent. The developed deterioration model is then used to estimate the time-variant seismic fragility and reliability of an example RC bridge. The impacts of interactions between deterioration processes on the time-variant performance are investigated in detail under different earthquake occurrence rates, different levels of ASR, and different levels of interactions. The results highlight the importance of incorporating different deterioration processes and their interactions when estimating the time-variant performances of RC structures. (C) 2020 American Society of Civil Engineers. |
| 出版年： | 2021 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 147 |
| 期： | 2 |
| 页码： | 04020314.1-04020314.12 |
相关文献
- Experimental Behavior of Large Reinforced Concrete Specimen with Heavy ASR and DEF Deterioration
- Seismic Performance Assessment of a Corroded 50-Year-Old Reinforced Concrete Building
- Residual Flexural Capacity and Performance Assessment of Corroded Reinforced Concrete Beams
- Numerical Modeling of Nonuniform Corrosion-Induced Concrete Crack Width
- Life-Cycle Assessment of Long-Span Bridge’s Wind Resistant Performance Considering Multisource Time-Variant Effects and Uncertainties
- New Model for Estimating the Time-Variant Seismic Performance of Corroding RC Bridge Columns
检索历史
应用推荐
