In Situ Concrete Bridge Strengthening Using Ductile Activated NSMR CFRP System
نویسندگان
چکیده
Novel and complex structural solutions are often challenging to introduce in the building industry since they may provide unconventional less verified behavior combined with several novel unique failure modes. A desired safety level be difficult verify due lack of knowledge related modes their variation. This study introduces a method that first step toward addressing such challenges. Five laboratory tests were done on ductile response-controlled anchor system used for prestressed CFRP NSMR strengthening. These results as basis further implementation pilot project where an situ cast concrete bridge was strengthened developed system. particular focus dedicated capability designed response consistent load/deformation curve, yielding threshold, regime. The enabled tailoring specific project. Installation prestressing procedure worked desired, losses fully system, after three weeks, approximately 0.2 1.6 kN (0.2–1.3 mm). In proof loading all strengthening systems (20 systems) eliminate any possible below proof-loading level. It performed no signs distress.
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Shear Strengthening Using Cfrp Sheets for Prestressed Concrete Bridge Girders in Manitoba, Canada
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ژورنال
عنوان ژورنال: Buildings
سال: 2022
ISSN: ['2075-5309']
DOI: https://doi.org/10.3390/buildings12122244