contributor author | Li Jia | |
contributor author | Zhi Fang | |
contributor author | Rui Hu | |
contributor author | Kypros Pilakoutas | |
contributor author | Zhengmeng Huang | |
date accessioned | 2023-04-07T00:37:59Z | |
date available | 2023-04-07T00:37:59Z | |
date issued | 2022/10/01 | |
identifier other | %28ASCE%29CC.1943-5614.0001261.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4289434 | |
description abstract | This 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. | |
publisher | ASCE | |
title | Fatigue Behavior of UHPC Beams Prestressed with External CFRP Tendons | |
type | Journal Article | |
journal volume | 26 | |
journal issue | 5 | |
journal title | Journal of Composites for Construction | |
identifier doi | 10.1061/(ASCE)CC.1943-5614.0001261 | |
journal fristpage | 04022066 | |
journal lastpage | 04022066_12 | |
page | 12 | |
tree | Journal of Composites for Construction:;2022:;Volume ( 026 ):;issue: 005 | |
contenttype | Fulltext | |