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contributor authorLi Jia
contributor authorZhi Fang
contributor authorRui Hu
contributor authorKypros Pilakoutas
contributor authorZhengmeng Huang
date accessioned2023-04-07T00:37:59Z
date available2023-04-07T00:37:59Z
date issued2022/10/01
identifier other%28ASCE%29CC.1943-5614.0001261.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4289434
description abstractThis paper presents an experimental investigation of the fatigue behavior of ultrahigh-performance concrete (UHPC) beams prestressed with external carbon fiber-reinforced polymer (CFRP) tendons. Seven T-shaped beams were tested, and the effects of the effective prestressing stress, partial prestressing ratio, and fatigue load level on the flexural behavior and stiffness were analyzed and presented. Overall, the CFRP tendon–anchor assembly exhibited excellent fatigue performance. All tested fully prestressed beams survived 2 million cycles in fatigue tests, and the variation in their flexural capacity was limited. The partially prestressed beam failed after approximately 97,200 cycles due to fatigue fracture of the internal reinforcement. After fracture of the tensile steel bars, the partially prestressed beam behaved similarly to the fully prestressed beam and sustained more than half of the flexural capacity after 2 million cycles. A higher effective prestressing stress was favorable for maintaining the stiffness of CFRP prestressed UHPC beams.
publisherASCE
titleFatigue Behavior of UHPC Beams Prestressed with External CFRP Tendons
typeJournal Article
journal volume26
journal issue5
journal titleJournal of Composites for Construction
identifier doi10.1061/(ASCE)CC.1943-5614.0001261
journal fristpage04022066
journal lastpage04022066_12
page12
treeJournal of Composites for Construction:;2022:;Volume ( 026 ):;issue: 005
contenttypeFulltext


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