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The optimum steel fiber reinforcement for prestressed concrete containment under internal pressure
Zhi Zheng,Ye Sun,Xiaolan Pan,Chunyang Su,Jingchang Kong 한국원자력학회 2022 Nuclear Engineering and Technology Vol.54 No.6
This paper investigates the optimum fiber reinforcement for prestressed concrete containment vessels(PCCVs) under internal pressure. To achieve this aim, steel fiber, which is the most widely used fiber typein current engineering applications, is adopted to constitute steel fiber-reinforced concrete (SFRC) tosubstitute the conventional concrete in the PCCV. The effects of characteristic parameters, lsf , of the steelfiber affecting significantly the mechanical behavior of the concrete are first taken into account. Partial orcomplete concrete regions of the PCCV are also considered to be replaced by SFRC to balance theeconomy and safety. By adopting the ABAQUS software, the ultimate bearing capacity and performancefor the fiber-reinforced PCCV are scientifically studied and quantified, and the recommendations for theoptimum way of fiber reinforcement are presented.