Strengthening a Reinforced Concrete (RC) Cap Beam Using Fiber-Reinforced Polymer Composites: A Case Study

摘要

The New York State Department of Transportation, in partnership with industry, is conducting a demonstration project to evaluate techniques and performance of concrete repair systems that use fiber reinforced polymer (FRP) composites. Cracked bridge pier cap beams are being repaired to reduce the risk of structural failure that was identified through the state's Vulnerability Assessment Program. Two FRP systems are compared to each other and to conventional methods to evaluate the merits of each in terms of additional strength provided, cost-effectiveness, ease and speed of installation, impact on traffic flow during the repair, and long term durability. This paper describes the project scope, subsequent repairs using FRP's, and long term plans for monitoring.