Time-dependent probabilistic modeling of corrosion propagation for service life prediction in RC structures

2016 ◽  
pp. 375-375
Author(s):  
E.L. Portela ◽  
T.N. Bittencourt ◽  
A.T. Beck
Keyword(s):  
Service Life ◽  
Life Prediction ◽  
Probabilistic Modeling ◽  
Service Life Prediction ◽  
Time Dependent ◽  
Rc Structures ◽  
Corrosion Propagation

Dynamic Life Prediction of RC Structures on Multi-Environmental Time Similarity Method

2011 ◽  
Vol 255-260 ◽  
pp. 220-224 ◽  
Author(s):  
Wei Liang Jin ◽  
Zhi Yuan Li ◽  
Ju Chen ◽  
Jin Quan Wang ◽  
Xiao Zhou Wang
Keyword(s):  
Service Life ◽  
Natural Environment ◽  
Life Prediction ◽  
Indoor Environment ◽  
Prior Information ◽  
Service Life Prediction ◽  
Accelerated Tests ◽  
Rc Structures ◽  
Similarity Method

Multi-environmental time similarity (METS) stepped forward for solving the key technique of service-life correlation of reinforced concrete (RC) structures exposed in artificially accelerated and real natural environment. Artificially accelerated tests and the similarity relationship between natural and indoor environment are used to estimate the prior information. Inspections of the real structure and concrete specimens are used to update the information and reduce the uncertainty in the service-life prediction. The progress of service-life prediction becomes dynamic and long-term.

Remaining Service Life Prediction of Reinforced Stone Arch Bridge

2011 ◽  
Vol 90-93 ◽  
pp. 1127-1131
Author(s):  
Feng Qi Guo ◽  
Zhi Wu Yu
Keyword(s):  
Service Life ◽  
Life Prediction ◽  
Scientific Basis ◽  
Service Life Prediction ◽  
Time Dependent ◽  
Conservation Units ◽  
Arch Bridge ◽  
Remaining Service Life ◽  
Arch Bridges ◽  
Management And Conservation

The remaining service life of reinforced stone arch bridges is of great concern to management and conservation units. It is also the scientific basis for decision to next reinforced maintenance or rebuild. The concept of time-dependent reliability is introduced. Accoding to the most common section enlargement reinforcement method, the load and resistance of the structures are analyzed. The analysis methods and steps of life prediction are proposed, and the remaining service life is obtained. Based on above methods, an engineering example is given, the service life forecast calculation of reinforced stone arch bridges is discussed.

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