Life cycle cost evaluation of the as-built cover layer in reinforced concrete bridge decks

2008 ◽  
pp. 793-798 ◽  
Author(s):  
C Barnes ◽  
J Trottier
Keyword(s):  
Life Cycle ◽  
Reinforced Concrete ◽  
Life Cycle Cost ◽  
Bridge Decks ◽  
Cost Evaluation ◽  
Concrete Bridge ◽  
Cover Layer ◽  
Reinforced Concrete Bridge ◽  
Concrete Bridge Decks

scholarly journals Life-Cycle Cost Analysis of Reinforced Concrete Bridge Decks with Conventional and Corrosion Resistant Reinforcement

2019 ◽  
Vol 271 ◽  
pp. 01009 ◽  
Author(s):  
Ligang Shen ◽  
Mohamed Soliman ◽  
Samir Ahmed ◽  
Christopher Waite
Keyword(s):  
Life Cycle ◽  
Reinforced Concrete ◽  
Life Cycle Cost ◽  
Bridge Deck ◽  
Bridge Decks ◽  
Corrosion Resistant ◽  
Reinforced Concrete Bridge ◽  
Concrete Bridge Decks ◽  
Traffic Delays

Reinforced concrete (RC) bridge decks suffer from corrosion-induced damage due to aggressive environmental conditions or de-icing chemicals. Significant expenditures are typically required to conduct routine maintenance and repairs of affected RC bridges. Compared to conventional steel reinforcement (i.e. black rebar), corrosion resistant reinforcement is initially more expensive but provides longer service life. In this paper, corrosion-induced cracking time, traffic delays associated with bridge deck maintenance, and the environmental impact associated with these activities are integrated into a probabilistic framework to investigate the life-cycle cost of RC bridge decks with conventional and corrosion resistant reinforcement. Monte Carlo simulation is implemented to quantify the probabilistic life-cycle cost of the bridge deck. Preliminary results obtained from this project show that corrosion resistant reinforcement has lower life-cycle cost compared to conventional reinforcement. The indirect cost associated with traffic delays accounts for over 50% of the total life-cycle cost for the investigated case study.

Comparative Evaluation of Crack Width for Reinforced Concrete Bridge Deck

2021 ◽  
Vol 9 (10) ◽  
pp. 59-67
Author(s):  
Shivank Tamrakar
Keyword(s):  
Reinforced Concrete ◽  
Crack Width ◽  
Bridge Deck ◽  
Constant Width ◽  
Bridge Decks ◽  
Concrete Bridge ◽  
Live Load ◽  
Reinforced Concrete Bridge ◽  
Concrete Bridge Decks ◽  
Reinforcement Bar

Abstract: Cracking in reinforced concrete bridge decks is a massively concern in the India. Many concrete bridge decks, inobservant to the age of construction, have shown different levels and patterns of cracking. Not only does cracking of bridge decks weaken the bridge infrastructure, but also allows the inflow of corrosive agents into the reinforcement. In this study, the crack width evaluation of RC bridge deck of span of 5 m. and 9 m. is based on equations given by IRS Concrete Bridge Code 1997 for different cases like- the effect of depth variation, reinforcement diameter, clear cover, variation in live load moment, spacing of tension reinforcement and different no. of tension reinforcement bar to constant width for the same crosssection. This study concluded that crack width increases with increase in clear cover, variation in live load moment and spacing of tension reinforcement while it decreases with increase in reinforcement diameter, depth of the bridge deck and number of reinforced bars and percentage change evaluation of different parameter of 5m and 9m span bridge deck. Keyword: Crack Width, Cracking, Bridge Deck Slab, Crack Spacing.

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