In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
ACI World Headquarters
38800 Country Club Dr.
Farmington Hills, MI
ACI Middle East Regional Office
Sheik Rashid Tower, 7th Floor
Dubai World Trade Center
Phone: +971 4 3097066
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Assessment of Design Guidelines of Concrete Columns Reinforced with Glass Fiber-Reinforced Polymer Bars
Author(s): A. Hadhood, H. M. Mohamed, B. Benmokrane, A. Nanni, and C. K. Shield
Publication: Structural Journal
Appears on pages(s): 193-207
Keywords: capacity; design guidelines; GFRP-RC column; GFRP reinforcement; stiffness; strength limit state
Abstract:Recent years have seen a great interest in testing concrete columns reinforced with glass fiber-reinforced-polymer bars (GFRP-RC). Yet, current codes and guidelines have not addressed the design of GFRP-RC columns. This paper aims at providing a set of recommendations and provisions based on analytical investigations, past knowledge about steel-reinforced concrete columns, and correlations with the experimental results from several studies of GFRP-RC columns. A database of 144 experiments was assembled; the results are reported and analyzed. The assembled database includes a selected number of parameters that can represent numerous practical cases. Based on this study, the calculation of the effective flexural stiffness (EIeff) was assessed with several equations and compared to experiments. As a result, a modified expression is recommended for EIeff at the factored load level. The design axial and flexural strengths were developed based on four approaches that were recently assessed with nominal and experimental results. It was found that the experimental-to-design strength ratio varied from 1.43 to 2.09. The minimum and maximum reinforcement limits were reviewed against the experimental results to ensure the integrity of the GFRP bars. In addition, the limits in the recent editions of ACI 318 and CSA A23.3 on steel transverse reinforcement (ties and spirals) were reviewed and modified to fulfill the performance requirements of GFRP tied and spirally reinforced columns.
Click here to become an online Journal subscriber