Updating the reliability of existing PC bridge girders by incorporating spatial variations

M. Akiyama*, D. M. Frangopol, I. Yoshida

*この研究の対応する著者

研究成果: Conference contribution

抄録

This paper presents a framework for estimating the time-dependent reliability of prestressed concrete (PC) bridge girders in a marine environment. The analysis considers the spatial variability associated with concrete cover, surface chloride concentration, and coefficient of diffusion of chloride over the entire area. PC bridge girder is modeled as one-dimension spatial model. In addition, random variables for estimating the corrosion process of PC bridge girders are updated based on observational information such as chloride concentration distribution by coring test. Sequential Monte Carlo Simulation (SMCS) is used to update simultaneously multiple random variables relating to observational information. In an illustrative example, the effect of the spatial interval of observational information given by coring test on the updated estimate of a PC bridge girder reliability is investigated.

本文言語English
ホスト出版物のタイトルBridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management
ページ602-607
ページ数6
出版ステータスPublished - 2012 7月 23
イベント6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012 - Stresa, Lake Maggiore, Italy
継続期間: 2012 7月 82012 7月 12

出版物シリーズ

名前Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management

Conference

Conference6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012
国/地域Italy
CityStresa, Lake Maggiore
Period12/7/812/7/12

ASJC Scopus subject areas

  • 土木構造工学
  • 安全性、リスク、信頼性、品質管理

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