Details:

Creators:
Kachlakev, D.
Corporate Creators:
Oregon. Dept. of Transportation. Research Unit
Corporate Contributors:
United States. Federal Highway Administration
Subject/TRT Terms:
[+]
Beams Bridge Columns Composite Composite Materials Durability Fiber Fiber Reinforced Polymers FRP Polymer Reinforced Concrete Bridges Reinforcement Strengthening Strengthening (Maintenance)
Publication/ Report Number:
FHWA-OR-RD-98-08
Resource Type:
Tech Report
Geographical Coverage:
Oregon
Corporate Publisher:
Oregon. Dept. of Transportation. Research Unit
Abstract:
The objective of this research project is to outline methodologies for using Fiber Reinforced Polymer (FRP) composites to strengthen and rehabilitate reinforced concrete bridge elements.

Infrastructure deterioration and bridge strengthening techniques using FRP materials are discussed as background. Properties and classifications of different reinforcing fibers and resin matrices are provided, along with the mechanical properties of the FRP composites.

Basic concepts and design principles for composite FRP materials are introduced, and topics such as manufacturing processes, anisotropic elasticity, strength of anisotropic materials, and micro-mechanics are presented. Techniques and concepts for strengthening concrete beams with FRP composites are discussed, as are flexural and shear strengthening design and construction methodologies. The worldwide research experience in the behavior of FRP strengthened beams under various conditions are summarized.

External reinforcement of concrete columns using FRP materials is examined. Theoretical background, factors influencing the performance of FRP wrapped columns, and various case studies are presented. Design methodologies and examples supplement the case studies for both beams and columns. Most FRP material systems available on the market today are summarized and evaluated.

Construction and durability requirements of the retrofitted systems are presented. Reliability assessment, condition evaluation methods, and factors influencing the strengthening quality are included. The various steps of the construction process, such as selection of a composite strengthening system, concrete surface preparation, and bond between FRP and concrete are summarized. Quality control, environmental durability of FRP composites, and cost effectiveness are presented.


Format:
PDF
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:f5412b306d2048c0fd4a5a37c22a2cfa368ca7852df1c4c386141fd81779cb6c
Download URL:
https://rosap.ntl.bts.gov/view/dot/15569/dot_15569_DS1.pdf
File Type:

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