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Abstract

Evolutions in Mechanical Engineering

Challenge in Structural Behaviours of Corroded Pre-stressed Concrete Beams

  • Open or Close Lei Wang*

    Changsha University of Science and Technology, China

    *Corresponding author: Lei Wang, Changsha University of Science and Technology, No. 960 Wanjiali Road, 410114, Changsha, Hunan, China

Submission: August 01, 2018;Published: August 13, 2018

DOI: 10.31031/EME.2018.01.000507

ISSN 2640-9690
Volume1 Issue2

Abstract

Strand corrosion is one of the main causes for the deterioration of Pre-stressed concrete structures. Corrosion decreases strand cross-section, causes material deterioration, induces concrete cracking, degrades bond strength and deteriorates the capacity of PC beams. As the high-stress level of prestressing strand, strand corrosion causes a brittle failure of PC beams without warnings. The potential dangers of corrosion in PC beams would be much more severe than that in reinforced concrete members. The structural behaviors should be thoroughly investigated to insure the serviceability and safety of corroded PC beams.

Keywords: Pre-stressed concrete beams; Strand corrosion; Concrete cracking; Bond strength; Structural behaviors

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