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Glass Fiber-Reinforced Polymer – Reinforcement for Concrete Structures (GFRP-RC)
In 2009, AASHTO adopted the "AASHTO LRFD Bridge Design Guide Specifications for GFRP–Reinforced Concrete Bridge Decks and Traffic Railings". However GFRP bars have been used in many different structural components and application for many years. The use and performance of these bars has been well documented in many research papers and reports. Although there is need to update the AASHTO GFRP Specifications however, there is also great need to develop an AASHTO specification for the use of GFRP reinforcement in other structural members and components. Therefore, this statement proposes to develop and AASHTO Specification for the design of concrete structures with GFRP Reinforcement.
This material as an alternative to steel reinforcement has an advantage due to its noncorrosive nature. At the same time GFRP bars have different mechanical properties and characteristics that require their own design and construction procedures and specifications.
The objective of this research is to develop "AASHTO LRFD Specifications for the Design and Construction of GFRP Reinforced Concrete Highway Structures". This specification would provide guidance for the design and construction of all structural elements and components. The intent is to develop this initial document as a standalone specification (similar to what ACI is developing for buildings) that could later be incorporated into AASHTO LRFD Bridge Design Specifications, Section 5: Concrete Structures.
An AASHTO LRFD Specifications for the Design and Construction of GFRP Reinforced Concrete Highway Structures will enable states DOT’s to use this innovative material where appropriate and effective. This innovative material has the potential to enhance the performance of highway structures and lower their life cycles costs.
The literature search produced numerous research, specifications and documents that are used to design GFRP reinforced concrete structures and components. The objective of this research is to synthesize the information into AASHTO specifications to be used by DOT’s for designing bridges and highway structures.
The objectives of this research is to develop an "AASHTO LRFD Specifications for the Design and Construction of GFRP Reinforced Concrete Highway Structures" and may include the following tasks:
1. Literature Search:
a. Conduct national and
international literature search on this topic to determine the available design
and construction specification, methodology and procedures.
Conduct national and international search to determine the available design and
construction performance specification and criteria.
2. Research the
potential design procedure, design criteria and potential specification.
“AASHTO LRFD Specifications for the Design and Construction of GFRP Reinforced
Concrete Highway Structures “
4. Develop a
The specifications developed from this research will be submitted to AASHTO COBS Technical Committees on Concrete and FRP for adoption.
This research statement meets the strategic plan of the AASHTO subcommittee on Bridges and Structures Items:
1- Extend Bridge Service Life,
4- Maintain and Enhance the AASHTO Specifications,
6- Optimize Structural Systems,
|Sponsoring Committee:||AFF30, Concrete Bridges
|Research Period:||12 - 24 months|
|RNS Developer:||Sam Fallaha, P. E.|
|Source Info:||Committee members|
|Index Terms:||Glass fibers, Fiber reinforced polymers, Reinforced concrete, Reinforced concrete bridges, Structural design, Specifications, |
Bridges and other structures
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