Repair of damaged end regions of prestressed concrete

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Repair of damaged end regions of prestressed concrete ...

End region deterioration is simulated by imposing damage to the cover concrete, and mortar and FRP repairs are applied to test their effectiveness. Finally, a 3D finite element (FE) model of a full scale prestressed concrete (PC) I-girder is used to investigate the effect of damage to the cover concrete and stirrups in the end region of the girder. Parametric studies are performed using ...

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Repair Strengthening of Distressed/Damaged Ends of ...

Finally, a 3D finite element (FE) model of a full-scale prestressed concrete (PC) I-girder is developed and used in a parametric study. The numerical study is performed by using externally bonded CFRP shear laminates to determine the most effective repair schemes for the damaged end region. The results of the shear pull-out tests of CFRP laminates that have undergone accelerated aging are used ...

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Prevention and Repair of End-Region Cracks in Prestressed ...

Ramseyer and Kang investigated the effectiveness of current and possible repair techniques for the end-region of damaged AASHTO prestressed concrete girders. The authors used FRP wraps and near surface mounted rods in repairing and strengthening damaged AASHTO girders.

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Repair of damaged end regions of prestressed concrete ...

Repair of damaged end regions of prestressed concrete ...

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FRP REPAIR STRENGTHENING OF DAMAGED END REGIONS OF ...

FRP REPAIR STRENGTHENING OF DAMAGED END REGIONS OF 6 PRESTRESSED BEAMS 7 . 8 Bassem Andrawes, Ph.D., Associate Professor, Department of Civil and Environmental 9 Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 10 Ian Shaw, Graduate Research Assistant, Department of Civil and Environmental 11 Engineering, University of Illinois at Urbana-Champaign,

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Post-Damage Repair of Prestressed Concrete Girders ...

18/09/2012  The goal of this research is to assess the effectiveness of current and possible repair techniques for the end region of damaged prestressed concrete girders. To do this, three American Association of State Highway and Transportation prestressed concrete girders were tested to failure, repaired, and retested.

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Repair of damaged end regions of prestressed concrete ...

End region deterioration is simulated by imposing damage to the cover concrete, and mortar and FRP repairs are applied to test their effectiveness. Finally, a 3D finite element (FE) model of a full scale prestressed concrete (PC) I-girder is used to investigate the effect of damage to the cover concrete and stirrups in the end region of the girder. Parametric studies are performed using ...

Get price

FRP REPAIR STRENGTHENING OF DAMAGED END REGIONS

FRP REPAIR STRENGTHENING OF DAMAGED END REGIONS OF 6 PRESTRESSED BEAMS 7 . 8 Bassem Andrawes, Ph.D., Associate Professor, Department of Civil and Environmental 9 Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 10 Ian Shaw, Graduate Research Assistant, Department of Civil and Environmental 11 Engineering, University of Illinois at Urbana-Champaign,

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Repair of damaged end regions of prestressed concrete ...

Repair of damaged end regions of prestressed concrete ...

Get price

Repair Strengthening of Distressed/Damaged Ends of ...

Finally, a 3D finite element (FE) model of a full-scale prestressed concrete (PC) I-girder is developed and used in a parametric study. The numerical study is performed by using externally bonded CFRP shear laminates to determine the most effective repair schemes for the damaged end region. The results of the shear pull-out tests of CFRP laminates that have undergone accelerated aging are used ...

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Repair of damaged end regions of PC beams using externally ...

In this study, concrete cover damages are imposed on small scale prestressed concrete beams, which are tested in three-point bending to determine the effect of this type of damage on the shear capacity of the beams. A quick setting mortar repair is used to replace the damaged cover concrete and test its ability to recover the shear strength of the beam. The results show the mortar repair alone ...

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Repair Strengthening of Distressed/Damaged Ends of ...

End region deterioration is simulated by imposing damage to the concrete cover; then mortar and FRP repairs are applied to test their effectiveness. Finally, a 3D finite element (FE) model of a full-scale prestressed concrete (PC) I-girder is developed and used in a parametric study. The numerical study is performed by using externally bonded CFRP shear laminates to determine the most ...

Get price

Repair of Damaged Prestressed Concrete Bridges Using CFRP

prestressed concrete (P/C) girders. Though different types of repair methods, materials, and elements are being considered, the objective of this research is to investigate the effectiveness of CFRP as a material to repair damaged P/C bridge girders. The repair and strengthening of reinforced concrete (R/C) structures with CFRP is a generally

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DURABILITY AND REPAIR ISSUES FOR PRESTRESSED CONCRETE ...

13/11/2017  The prestressed elements have also proved to be very durable, due mainly to the high quality of construction including good concrete cover, excellent quality concrete and high quality (commonly steam) curing. Another major durability factor is that cracking is limited due to the prestress compression, minimizing access of chlorides and carbonation to the reinforcement and prestressing

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340220 - Rehabilitation of Distressed End Regions of PC ...

The damage to the end regions of prestressed concrete (PC) bridge girders is one of the most common forms of aging and deterioration, especially for bridges located in cold climates. This type of damage is primarily attributed to two factors, namely: 1) leakage of water and deicing chemicals into the expansion joint located above the beam ends causing severe corrosion of reinforcement and ...

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End Regions Repair of Prestressed Girders for Restoring ...

End Regions Repair of Prestressed Girders for Restoring the Shear Capacity Using UHPC, FR-SCC, and MALP. View/ Open. 2021_Ahmadi_Mujtaba_Thesis.pdf (6.012Mb) Date 2021. Author. Ahmadi, Mujtaba. Metadata Show full item record. Abstract ...

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Repair of damaged end regions of prestressed concrete ...

End region deterioration is simulated by imposing damage to the cover concrete, and mortar and FRP repairs are applied to test their effectiveness. Finally, a 3D finite element (FE) model of a full scale prestressed concrete (PC) I-girder is used to investigate the effect of damage to the cover concrete and stirrups in the end region of the girder. Parametric studies are performed using ...

Get price

Repair Strengthening of Distressed/Damaged Ends of ...

Finally, a 3D finite element (FE) model of a full-scale prestressed concrete (PC) I-girder is developed and used in a parametric study. The numerical study is performed by using externally bonded CFRP shear laminates to determine the most effective repair schemes for the damaged end region. The results of the shear pull-out tests of CFRP laminates that have undergone accelerated aging are used ...

Get price

Repair Strengthening of Distressed/Damaged Ends of ...

End region deterioration is simulated by imposing damage to the concrete cover; then mortar and FRP repairs are applied to test their effectiveness. Finally, a 3D finite element (FE) model of a full-scale prestressed concrete (PC) I-girder is developed and used in a parametric study. The numerical study is performed by using externally bonded CFRP shear laminates to determine the most ...

Get price

Repair of Damaged Prestressed Concrete Bridges Using CFRP

prestressed concrete (P/C) girders. Though different types of repair methods, materials, and elements are being considered, the objective of this research is to investigate the effectiveness of CFRP as a material to repair damaged P/C bridge girders. The repair and strengthening of reinforced concrete (R/C) structures with CFRP is a generally

Get price

340220 - Rehabilitation of Distressed End Regions of PC ...

The damage to the end regions of prestressed concrete (PC) bridge girders is one of the most common forms of aging and deterioration, especially for bridges located in cold climates. This type of damage is primarily attributed to two factors, namely: 1) leakage of water and deicing chemicals into the expansion joint located above the beam ends causing severe corrosion of reinforcement and ...

Get price

PRESTRESSED CONCRETE BEAM END REPAIR (FINAL REPORT)

Title and Subtitle Prestressed Concrete Beam End Repair 5. Report Date January 6, 2000 7. Author(s) Douglas E. Needham, P.E. 6. Performing Organization Code 9. Performing Organization Name and Address Michigan Department of Transportation Construction and Technology Division P.O. Box 30049 Lansing, MI 48909 8. Performing Org Report No. RR-1380 12. Sponsoring Agency Name and

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End Regions Repair of Prestressed Girders for Restoring ...

End Regions Repair of Prestressed Girders for Restoring the Shear Capacity Using UHPC, FR-SCC, and MALP. View/ Open. 2021_Ahmadi_Mujtaba_Thesis.pdf (6.012Mb) Date 2021. Author. Ahmadi, Mujtaba. Metadata Show full item record. Abstract ...

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DAMAGE EVALUATION AND REPAIR METHODS FOR PRESTRESSED

16/08/2006  Damage and Methods of Repair for Prestressed Concrete Bridge Members." This was the first of a planned two-phase project with the over-all objective being to -- - - . - proideguidance for. the assessment-of -accidental-damage to -prestressed concrete bridge members and to identify, develop, and evaluate the effectiveness of repair and replacement techniques. The specific objective of Phase

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REPAIR OF IMPACT-DAMAGED PRESTRESSED BRIDGE GIRDERS

Keywords: Prestressed concrete repair, flexural tests, FRP, Strand Splices . REPAIR OF IMPACT-DAMAGED PRESTRESSED BRIDGE GIRDERS USING STRAND SPLICES AND FIBER-REINFORCED POLYMER Justin A. Liesen ABSTRACT This study is part of a VDOT sponsored project focusing on repair techniques for impact damaged prestressed bridge girders. The investigation included evaluation of the repair

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REPAIR OF IMPACT-DAMAGED PRESTRESSED BRIDGE GIRDERS

This thesis investigates the structural repair of impact-damaged prestressed concrete bridge girders. Impact damage to these structural elements is most commonly an overheight vehicle colliding with the underside of an overpass bridge girder on a roadway. Damage to the structure can range from minor to catastrophic. Though more destructive impacts require replacement of the girder or entire ...

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