Structural evaluation of deteriorated reinforced concrete bridge columns and girders

Harun Demirci, Mucip Tapan, Riyad S. Aboutaha

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

Abstract

Many existing reinforced concrete bridge structures deteriorate or exhibit extensive damage due to design and construction faults, chemical attacks or change in environment. Depending on the severity and type of deterioration, the bridge becomes unfit to serve its intended purpose, and repair may be required to restore and/or extend its service life. To develop a cost-effective repair plan, the remaining strength of bridge members must be investigated and estimated accurately. This paper presents structural evaluation of partially corroded reinforced concrete bridge columns and girders. It focuses on estimating the residual strength of concrete bridge members. This study is necessary to establish a cost-effective repair method for existing deteriorated bridges. Several variables were investigated, they include but not limited to: corrosion level, size of corroded region, percentage loss of rebar cross-section, level of degradation of bond between rebars and concrete. An advanced analytical approach is used to develop interaction diagrams of partially corroded reinforced concrete columns. These diagrams might be used to determine the strength and safety level of columns at the time of investigation. For the bridge girders, by using the preceding variables and the available test results, an analytical approach is presented to ascertain the proportion of loss of serviceability at the time of investigation.

Original languageEnglish (US)
Title of host publicationReal Structures
Subtitle of host publicationBridges and Tall Buildings - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010
Pages469-474
Number of pages6
StatePublished - Dec 1 2006
Event10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010 - Bangkok, Thailand
Duration: Aug 3 2006Aug 5 2006

Publication series

NameReal Structures: Bridges and Tall Buildings - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010
Volume4

Other

Other10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010
CountryThailand
CityBangkok
Period8/3/068/5/06

Keywords

  • Bridge column
  • Bridge girder
  • Bridge maintenance
  • Bridge repair
  • Corrosion of steel rebars
  • Interaction diagrams
  • Structural evaluation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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  • Cite this

    Demirci, H., Tapan, M., & Aboutaha, R. S. (2006). Structural evaluation of deteriorated reinforced concrete bridge columns and girders. In Real Structures: Bridges and Tall Buildings - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010 (pp. 469-474). (Real Structures: Bridges and Tall Buildings - Proceedings of the 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010; Vol. 4).