Reliability-based durability design and service life assessment of reinforced concrete deck slab of jetty structures

Mitsuyoshi Akiyama*, Dan M. Frangopol, Koshin Takenaka

*この研究の対応する著者

研究成果: Article査読

34 被引用数 (Scopus)

抄録

Reinforced concrete (RC) structures in a marine environment deteriorate with time due to chloride-induced corrosion of reinforcing bars. Since the RC deck slabs of jetty structures are exposed to a very aggressive environment, higher deterioration rates can develop. In this paper, a reliability-based durability design and service life assessment of RC jetty structures are presented. For new RC jetty structures, the concrete quality and concrete cover necessary to prevent the chloride-induced reinforcement corrosion causing the deterioration of structural performance during the whole lifetime could be determined. Based on the airborne chloride hazard depending on the vertical distance from the sea level surface to the RC deck slab, the probability associated with the steel corrosion initiation is estimated. The water to cement ratio and concrete cover to satisfy the target reliability level are provided. For evaluating the service life of existing structures, the condition state based on the visual inspection of RC structure can be provided. The deterioration process of the RC jetty structure can be modelled as a Markov process. Therefore, the transition probability matrix at time t after construction can be updated by visual inspection results. A procedure to update the transition probability matrix by the Sequential Monte Carlo Simulation method is indicated. In an illustrative example, the effect of the updating on the life-cycle reliability estimate of existing RC deck slab in a jetty structure subjected to the chloride attack is presented.

本文言語English
ページ(範囲)468-477
ページ数10
ジャーナルStructure and Infrastructure Engineering
13
4
DOI
出版ステータスPublished - 2017 4月 3

ASJC Scopus subject areas

  • 土木構造工学
  • 建築および建設
  • 安全性、リスク、信頼性、品質管理
  • 地盤工学および土木地質学
  • 海洋工学
  • 機械工学

フィンガープリント

「Reliability-based durability design and service life assessment of reinforced concrete deck slab of jetty structures」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル