Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Service Life Estimation of Reinforced Concrete Bridges
The objective of the present study is to estimate of service life of reinforced concrete structural members subjected to chloride-induced corrosion of steel reinforcement. Based on the review of literature, a procedure for service life estimation of reinforced concrete structural elements has been identified. Though the procedure used in this thesis is applicable for different types of structural components, a T-beam girder of 18 m span bridge was selected to illustrate the procedure. The bridge is modelled using a commercial finite element analysis package (SAP 2000) and analysed for IRC load cases. The service lives of the bridge girder with respect to minimum required load carrying capacity are determined for different exposure conditions as defined in IS456-2000. Two approaches are considered in the present study for meeting the service life requirement in the very severe and extreme conditions: i) Use of different maintenance methods, and ii) Use of High-Performance Concrete. Four different maintenance options (silane surface coating, cathodic protection, rebuilding and cover replacement) are considered, and their relative performance is studied using life-cycle costing. It is noted that the procedure for estimation of service life will be useful for scheduling the maintenance activities. It is also found that for very severe and extreme exposure conditions, use of High-Performance Concrete is a feasible alternative for satisfying the service life requirement.
Service Life Estimation of Reinforced Concrete Bridges
The objective of the present study is to estimate of service life of reinforced concrete structural members subjected to chloride-induced corrosion of steel reinforcement. Based on the review of literature, a procedure for service life estimation of reinforced concrete structural elements has been identified. Though the procedure used in this thesis is applicable for different types of structural components, a T-beam girder of 18 m span bridge was selected to illustrate the procedure. The bridge is modelled using a commercial finite element analysis package (SAP 2000) and analysed for IRC load cases. The service lives of the bridge girder with respect to minimum required load carrying capacity are determined for different exposure conditions as defined in IS456-2000. Two approaches are considered in the present study for meeting the service life requirement in the very severe and extreme conditions: i) Use of different maintenance methods, and ii) Use of High-Performance Concrete. Four different maintenance options (silane surface coating, cathodic protection, rebuilding and cover replacement) are considered, and their relative performance is studied using life-cycle costing. It is noted that the procedure for estimation of service life will be useful for scheduling the maintenance activities. It is also found that for very severe and extreme exposure conditions, use of High-Performance Concrete is a feasible alternative for satisfying the service life requirement.
Service Life Estimation of Reinforced Concrete Bridges
Lecture Notes in Civil Engineering
Vilventhan, Aneetha (Herausgeber:in) / Singh, Shamsher Bahadur (Herausgeber:in) / Delhi, Venkata Santosh Kumar (Herausgeber:in) / Kavitha, B. (Autor:in) / Anoop, M. B. (Autor:in)
National conference on Advances in Construction Materials and Management ; 2022 ; Warangal, India
31.07.2023
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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