Numerical study on the temporal changes of the principal stresses at the ends of the hollow PC-girders to control horizontal end cracks

Karimi, Abdul Khaliq; Uchida, Ryota; Aasim, Bashir Ahmad; Tomiyama, Jun; Suda, Yuya

doi:10.17485/ijst/v14i16.2280

Cited by 1 publication

(2 citation statements)

References 23 publications

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“…For efficient calculations, the length of the chosen hollow PC-girder was miniaturized to 4 m span, which is qualified for the appropriate prestressing [1]. Moreover, the girder's geometry and the utilized loadings are symmetric, then the half girder's model was created.…”

Section: Numerical Analysismentioning

confidence: 99%

“…Precast prestressed concrete girders present various advantages, including high quality, minimal life-cycle cost, reduces service load stresses, limits cracks, controls deflections, and allows for the use of smaller and lighter members over increased span lengths [1][2][3]. These aspects make prestressed concrete ideal to provide high performance, economical, and an overall efficient highway bridge superstructure solution [4][5].…”

Section: Introductionmentioning

confidence: 99%

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Effects of the End-Zone Reinforcements and Strand-Debonding on the Temporal Changes of Principal Stresses at the Ends of the Hollow PC-Girders

Karimi

Uchida²,

Fazli

et al. 2022

MSF

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Hollow PC-girders are hollow along the length of the girder; because of this, the possibility of developing horizontal cracking at their ends at the prestressing time is high. In this paper, a numerical analysis was performed to examine the effects of strand-debonding and end-zone reinforcements on the principal stresses, which is the leading cause to develop horizontal cracks at the ends of the hollow PC-girders. First, the length of the selected PC-girder was reduced to 4 m span which is necessary for enough prestressing; after that, with the help of the Midas FEA software, a detailed prestressing analysis was conducted. This study indicated that debonding four PC-strands at the ends of the girder and placing end-zone reinforcements could decrease the magnitude of principal stresses to the level to be less than the tensile strength of concrete, and therefore, horizontal cracks were eliminated at the ends of the hollow PC-girder.

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Section: Numerical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of the End-Zone Reinforcements and Strand-Debonding on the Temporal Changes of Principal Stresses at the Ends of the Hollow PC-Girders

Karimi

Uchida²,

Fazli

et al. 2022

MSF

Self Cite

View full text Add to dashboard Cite

show abstract

Numerical study on the temporal changes of the principal stresses at the ends of the hollow PC-girders to control horizontal end cracks

Abstract: Numerical study on the temporal changes of the principal stresses at the ends of the hollow PC-girders to control horizontal end cracks.

Cited by 1 publication

References 23 publications

Effects of the End-Zone Reinforcements and Strand-Debonding on the Temporal Changes of Principal Stresses at the Ends of the Hollow PC-Girders

Effects of the End-Zone Reinforcements and Strand-Debonding on the Temporal Changes of Principal Stresses at the Ends of the Hollow PC-Girders

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