Service life of the reinforced concrete bridge deck in corrosive environments: A soft computing system

2011 ◽  
Vol 11 (4) ◽  
pp. 3333-3346 ◽  
Author(s):  
Jafar Sobhani ◽  
Ali Akbar Ramezanianpour
Keyword(s):  
Reinforced Concrete ◽  
Service Life ◽  
Soft Computing ◽  
Bridge Deck ◽  
Computing System ◽  
Concrete Bridge ◽  
Reinforced Concrete Bridge ◽  
Concrete Bridge Deck ◽  
Corrosive Environments

scholarly journals Reinforced Concrete Bridge Deck Model Considering Delayed Exposure to Chlorides

2019 ◽  
Author(s):  
Petr Konečný ◽  
Petr Lehner ◽  
David Pustka
Keyword(s):  
Reinforced Concrete ◽  
Bridge Deck ◽  
Concrete Bridge ◽  
Reinforced Concrete Bridge ◽  
Corrosion Initiation ◽  
Chloride Induced Corrosion ◽  
Concrete Quality ◽  
Concrete Type ◽  
Concrete Bridge Deck ◽  
Delayed Exposure

The paper is focused on the model of the effect of delayed chloride exposure on the chloride induced corrosion initiation on ideal reinforced concrete bridge. The Finite Element-based numerical model is applied. The effect of concrete quality is expressed in the form of time dependent diffusion coefficient in order to evaluate the effect of concrete type as well as the effect of aging. The influence of extended chloride exposure on the corrosion initiation is introduced.

Flexural Behavior Finite Element Analysis of CFRP Reinforced Concrete Bridge Deck with Corrosion and Salt Resistance

2014 ◽  
Vol 1004-1005 ◽  
pp. 1474-1477
Author(s):  
Ze Ying Yang ◽  
Jia You Liu ◽  
Yi Dong Zhang ◽  
Jian Bo Qu
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Bridge Deck ◽  
Flexural Behavior ◽  
Concrete Bridge ◽  
Element Analysis ◽  
Strength Performance ◽  
Reinforced Concrete Bridge ◽  
Concrete Bridge Deck ◽  
Prestressed Structures

By numerical simulation and contrasting with experimental conclusions, mechanical models in every loading stage of CFRP reinforced concrete bridge deck were established. The results showed that, numerical simulation results of non-prestressed bridge decks fitted corresponding test results well. The stiffness of prestressed structures had been greatly improved than non-prestressed structures, so the high strength performance of CFRP had been used more effectively.

The Effect of the Variation of Input Parameters on the Onset of Corrosion of the Bridge Deck Exposed to Chlorides Considering Selected Reinforcement Protection

2020 ◽  
Vol 832 ◽  
pp. 147-157
Author(s):  
Petr Konečný ◽  
Petr Lehner
Keyword(s):  
Reinforced Concrete ◽  
Bridge Deck ◽  
Probabilistic Method ◽  
Concrete Bridge ◽  
Probabilistic Estimation ◽  
Reinforced Concrete Bridge ◽  
Corrosion Initiation ◽  
Input Parameters ◽  
Concrete Bridge Deck ◽  
Input Variables

The contribution focuses on the effect of selected input parameters on probabilistic estimation of chloride induced reinforced concrete bridge deck corrosion initiation. The reinforced concrete bridge deck with steel protected by epoxy-coating is considered. A finite element diffusion model in conjunction with a probabilistic method using Monte Carlo technique is used to address the inherited randomness of input variables. Presented parametric study shows the sensitivity of estimation of the corrosion initiation likelihood on variation of input parameters.

Prediction Methods for Ultimate Strengths in GFRP Reinforced Concrete Bridge Deck Slabs

2010 ◽  
Vol 163-167 ◽  
pp. 1139-1142
Author(s):  
Yu Zheng ◽  
Yun Feng Pan
Keyword(s):  
Reinforced Concrete ◽  
Bridge Deck ◽  
Prediction Method ◽  
Theoretical Method ◽  
Concrete Bridge ◽  
Membrane Action ◽  
Reinforced Concrete Bridge ◽  
Deck Slabs ◽  
Bridge Deck Slabs ◽  
Concrete Bridge Deck

The corrosion of reinforcement embedded in concrete bridge deck slabs has been the cause of major deterioration and of high costs in repair and maintenance. Fibre reinforced polymers (FRP) exhibit high durability in combination with high strength and light weight. The majority of research with FRP bars for reinforcing concrete has been on simply supported beams and slabs where the low value of elasticity of FRP has meant that the service behaviour has been critical. These differences have been attributed to the low value of elasticity of many FRPs compared to steel. However, laterally restrained slabs, such as those in bridge deck slabs, exhibit arching action or compressive membrane action (CMA), which has a beneficial influence on the service behaviour such as the deflection. Based on the previous research on CMA in steel reinforced concrete bridge deck slabs, a modified theoretical method were established according to the material properties of GFRP reinforcement. The proposed prediction method showed a good collection of some reported GFRP reinforced slabs experimental tests.

Analysis of Crack Characteristics of Reinforced Concrete Bridge Deck Under the Effect of Static Wheel Load

2021 ◽  
pp. 69-77
Author(s):  
Duc Hieu Nguyen ◽  
The Truyen Tran ◽  
Thanh Tung Bui ◽  
Minh Cuong Le ◽  
Ngoc Trinh Vu
Keyword(s):  
Reinforced Concrete ◽  
Bridge Deck ◽  
Concrete Bridge ◽  
Wheel Load ◽  
Reinforced Concrete Bridge ◽  
Concrete Bridge Deck
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