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原文传递 Flexural Behavior of Full-Scale, Carbon-Fiber-Reinforced Polymer Prestressed Concrete Beams

题名：	Flexural Behavior of Full-Scale, Carbon-Fiber-Reinforced Polymer Prestressed Concrete Beams
正文语种：	eng
作者：	Andrew M. Zickler
作者单位：	Virginia Department of Transportation Structure and Bridge Division Richmond Va.
摘要：	The following comments relate to "Flexural Behavior of Full-Scale, Carbon-Fiber-Reinforced Polymer Prestressed Concrete Beams," by Prakash Poudel, Abdeldjelil Belarbi, Bora Gencturk, and Mina Dawood, which appeared in the September-October 2022 issue of PCI Journal} Today's highway bridge construction almost exclusively uses steelprestressing strands for prestressed concrete beams. Prestressing steel is susceptible to corrosion-induced degradation when exposed to aggressive environments. Corrosion can result in the deterioration of the serviceability and strength of highway bridge beams. These concerns have led to the use of nonmetallic prestressing elements made of glass-fiber-reinforced polymer (GFRP), aramid-fiber-reinforced polymer (AFRP), and carbon-fiber-reinforced polymer (CFRP) materials, which are collectively referred to as fiber-reinforced polymers (FRPs). AmongFRPs, CFRP has the greatest potential to replace steel strands and provide corrosion-free prestressed concrete bridge girders when combined with corrosion-resistant transverse reinforcement. Completed examples of CFRP prestressed concrete beam implementations in the United States include the Pembroke Avenue Bridge and Plum Creek Bridge in Michigan. Examples in progress include the Interstate 64 South Side High Rise Bridge and Laskin Road Bridge in Virginia.
出版年：	2023
期刊名称：	PCI Journal
卷：	68
期：	1
页码：	103-103