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Performance-based design approaches for durability design of reinforced concrete structures



Title: Performance-based design approaches for durability design of reinforced concrete structures
Author(s): Rachel N. Muigai, Mark G. Alexander, Pilate Moyo, Mike B. Otieno
Paper category : conference
Book title: 2nd International Symposium on Service Life Design for Infrastructures
Editor(s): K. van Breugel, Guang Ye, Yong Yuan
Print-ISBN: 978-2-35158-096-7
e-ISBN: 978-2-35158-097-4
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 289 - 296
Total Pages: 8
Nb references: 23
Language: English


Abstract: Durability design of reinforced concrete structures has become a pervasive concern worldwide. It is concerned with ensuring the ability of the concrete to resist the penetration of aggressive agents during its intended service life. This largely involves the use of material and construction specifications that control the quality and thickness of the cover layer protecting the reinforcement. It is now evident that structures designed for durability have inherent safety together with economical and environmental advantages. The service life of such structures is prolonged bringing about a reduction in maintenance and repair costs. The environmental load associated with such a structure is also reduced thus enhancing the structure’s sustainability. Over time, durability design specifications have shifted from a prescriptive format to a performance-based format. Guidelines on performance-based service life design approaches of concrete structures are given in various codes and design standards.
The FIB Model Code (Service Life Design) gives four approaches for service life design as: full probabilistic approach, partial factor design approach, deemed-to-satisfy approach, and avoidance of deterioration approach. Two of these approaches are exemplified in this paper with the aim of creating an understanding of the different solutions the designer has to performance-based durability design.


Online publication: 2011-04-20
Publication type : full_text
Public price (Euros): 0.00