Use of carbon fiber reinforced polymer (CFRP) with CFRP anchors for shear-strengthening and design recommendations/quality control procedures for CFRP anchors.

Jirsa, James O.; Ghannoum, Wassim M; Kim, Chang Hyuk; Sun, Wei; Shekarchi, William A.; Alotaibi, Nawaf K.; Pudleiner, Douglas K.; Zhu, Jinying; Lui, Shukui; Wang, Helen; University of Texas at Austin. Center for Transportation Research

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Use of carbon fiber reinforced polymer (CFRP) with CFRP anchors for shear-strengthening and design recommendations/quality control procedures for CFRP anchors.

2017-03-01
By Jirsa, James O. ; Ghannoum, Wassim M ; Kim, Chang Hyuk ; ...

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Creators:

Jirsa, James O. ; Ghannoum, Wassim M ; Kim, Chang Hyuk ; Sun, Wei ; Shekarchi, William A. ; ... More +

Jirsa, James O. ; Ghannoum, Wassim M ; Kim, Chang Hyuk ; Sun, Wei ; Shekarchi, William A. ; Alotaibi, Nawaf K. ; Pudleiner, Douglas K. ; Zhu, Jinying ; Lui, Shukui ; Wang, Helen Less -
Corporate Creators:

University of Texas at Austin. Center for Transportation Research
Corporate Contributors:

Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration

Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Anchors Anchors (Structural Connectors) Beams Bridge Anchorages Carbon Fiber Reinforced Polymers Carbon Fibers CFRP Fiber Reinforced Concrete Fiber Reinforced Polymers Girders Quality Control Reinforced Concrete Bridges Shear Shear Strength Strengthening Uni-directional And Bi-directional Layouts
Publication/ Report Number:

FHWA/TX-16/0-6783-1
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

University of Texas at Austin. Center for Transportation Research
Abstract:

The objective of the study was to demonstrate the feasibility of using bi-directional layouts of CFRP for shear

strengthening of bridge girders. In a previous project (0-6306), it was demonstrated that uni-directional CFRP

strips and CFRP anchors improved the shear strength of reinforced concrete elements. Because the data on the bidirectional

layout of CFRP was limited, additional work carried out to understand the behavior and design of CFRP

strips and anchors for bridge elements subjected to large shear forces. The tests indicated that bi-directional CFRP

layouts did not consistently improve the shear capacity but the loads at first shear cracking increased (20 to 40 %

over the loads for uni-directional layouts of T-beams and less than 10% for pile cap girders), which improved

serviceability by reducing crack widths and improving the stiffness of the members. Anchor installation is critical

to shear strengthening so quality control procedures are needed to make sure that material used and installation

procedures meet design requirements.
Format:

PDF
Funding:

0-6783
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:94121a035ac6bc0d82711996c24b067ca95334da903536e67f198352dafd1ec7
Download URL:

https://rosap.ntl.bts.gov/view/dot/32131/dot_32131_DS1.pdf
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Use of carbon fiber reinforced polymer (CFRP) with CFRP anchors for shear-strengthening and design recommendations/quality control procedures for CFRP anchors.

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