Life cycle assessment of neutralized reinforced concrete bridges in western Taiwan

Yu Chi Sung, Chao Hsun Huang, Chuan Hui Wang, Chin Kuo Su, Kuang Yen Liu, Ban Chi Gau

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

For the reinforced concrete (RC) bridge, neutralization of concrete causes the deterioration of concrete material and weakens the protection of reinforcing steel against corrosion. The more the neutralization reveals, the poorer the properties of the materials of the bridge will be apt to get into. As time goes on, the degression of the structural performance, particularly in a polluted environment, will be more significant accordingly. If the degression can be predicted with an acceptable precision, the durability assessment of the existing RC bridge can be carried out and give a great help to the bridge management which is quite important for the developed countries. This paper collected the inspected and detected data of twenty-two existing RC bridges in western Taiwan to conduct the necessary regression analyses in predicting the neutralized effect of the bridges. In addition to the strength deterioration of material, the effective cross sections of the corroded reinforcement and of the neutralized concrete can be also acquired by the proposed approach. As a result, the performance degression curve of the whole structure can also be determined quantitatively via structural analysis. The results obtained can not only tell systematically the life cycle of the existing RC bridges but also give the crucial occasion to the necessary repairing or retrofitting for the neutralized bridges losing qualified performance. This study might benefit the optimal maintenance and the minimization of life cycle cost (LCC) for the bridges.

Original languageEnglish
Title of host publicationConstruction and Professional Practices - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010
PublisherSchool of Engineering and Technology
Pages357-362
Number of pages6
ISBN (Print)9748257207, 9789748257204
Publication statusPublished - 2006 Jan 1
Event10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010 - Bangkok, Thailand
Duration: 2006 Aug 32006 Aug 5

Publication series

NameConstruction and Professional Practices - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010
Volume5

Other

Other10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010
CountryThailand
CityBangkok
Period06-08-0306-08-05

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction

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