The Model for Predicting the Remaining Service Life of Reinforced Concrete Bridges in-Service and Applicability

2011 ◽  
Vol 90-93 ◽  
pp. 1162-1167
Author(s):  
Yi Qiang Xiang ◽  
Dong Mei Guo ◽  
Kun Cheng
Keyword(s):  
Reinforced Concrete ◽  
Service Life ◽  
Life Cycle Cost ◽  
Road Traffic ◽  
Concrete Bridges ◽  
Maintenance Cost ◽  
Future Research ◽  
Concrete Bridge ◽  
Remaining Service Life ◽  
Structural Resistance

There is a strong need in maintenance and management of bridge that analyzes and predicts remaining service life (RSL) of reinforced concrete bridge. Since structural resistance of concrete bridge is generally suffered from environment, load and material etc. factors, which are intercoupled and time-varying. Hence researchers should consider the economic development of road traffic area, environment of operational bridge, variation of load, deterioration law of materials, and maintenance cost of LCC for predicting RSL of bridge. This paper reviews recent model of predicting the remaining service life (RSL) for concrete bridge and serviceability, analyzes model characteristic and defects, and looks forward to future research from the viewpoint of structure durability, reliability and life cycle cost, respectively.

Expected residual service life of reinforced concrete structures from current strength considerations

2019 ◽  
Vol 22 (7) ◽  
pp. 1631-1643
Author(s):  
Sushil Kumar Dhawan ◽  
Abhinav Bindal ◽  
Suresh Bhalla ◽  
Bishwajit Bhattacharjee
Keyword(s):  
Reinforced Concrete ◽  
Service Life ◽  
Residual Life ◽  
Concrete Structures ◽  
Present Condition ◽  
Material Strength ◽  
Reinforced Concrete Structures ◽  
Residual Service Life ◽  
Remaining Service Life ◽  
Residual Service

Concrete is primarily used in the form of reinforced concrete for construction of buildings, bridges and other important structures. Due to normal usage and environmental effects, the structure would gradually deteriorate. The actual residual life needs to be worked at a given time vis-à-vis the design life of the structure, commensurate with the fulfilment of essential requirements of structural integrity and safety and from strength as well as serviceability considerations. Requirements for residual life assessment would depend upon the current parameters, such as the residual cross-sectional area of concrete as well as steel, Young’s modulus of elasticity and the in situ material strength of the constituent materials, namely, concrete and steel. This article aims to develop a rigorous methodology for expected remaining service life of a reinforced concrete structure from wind/seismic considerations, based on the present condition of the structure encompassing the residual material strength and the residual reinforcement/sectional areas. The methodology development section is followed by an illustrative example and a parametric study involving a 10-storeyed reinforced concrete building frame under wind and earthquake loads. Influences of various parameters such as concrete strength and residual rebar area on the expected remaining service life are studied in detail. The proposed methodology provides a simple but rational estimation of the residual service life for reinforced concrete structures.

Cost optimization of concrete bridge infrastructure

2003 ◽  
Vol 30 (5) ◽  
pp. 841-849 ◽  
Author(s):  
Mostafa A Hassanain ◽  
Robert E Loov
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
High Performance ◽  
High Performance Concrete ◽  
Cost Optimization ◽  
Concrete Bridges ◽  
Concrete Bridge ◽  
Analysis And Design ◽  
Prestressed Girders ◽  
Advanced Analysis

Recent surveys have indicated that between 30% and 40% of all bridges in North America are in various states of deterioration. Funding is limited owing to the existence of other deficient components of the transportation infrastructure. It is clear, therefore, that the return on the available funding needs to be maximized. This paper presents a review of publications on cost optimization of concrete bridge components and systems and then continues with a review of the state-of-the-art in life-cycle cost (LCC) analysis and design of concrete bridges. The main objective of the paper is to encourage bridge engineers to move towards the increased use of advanced analysis and design optimization methods.Key words: bridge, concrete, cost, high-performance concrete, infrastructure, life-cycle cost, optimization, prestressed girders, reliability.

Remaining service life estimation of reinforced concrete buildings based on fuzzy approach

2015 ◽  
Vol 15 (6) ◽  
pp. 879-902 ◽  
Author(s):  
Hae-Chang Cho ◽  
Deuck Hang Lee ◽  
Hyunjin Ju ◽  
Kang Su Kim ◽  
Ki-Hyun Kim ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Service Life ◽  
Fuzzy Approach ◽  
Reinforced Concrete Buildings ◽  
Life Estimation ◽  
Concrete Buildings ◽  
Remaining Service Life ◽  
Service Life Estimation
Sign in / Sign up

Export Citation Format

Share Document