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contributor authorJianzhe Shi
contributor authorXin Wang
contributor authorLei Zhang
contributor authorZhishen Wu
contributor authorZhongguo Zhu
date accessioned2022-05-07T20:47:55Z
date available2022-05-07T20:47:55Z
date issued2022-4-1
identifier other(ASCE)CC.1943-5614.0001194.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4282921
description abstractA novel composite-wedge anchorage is proposed here for prestressing fiber-reinforced polymer (FRP) tendons. The composite wedge was designed and optimized in terms of the length and elastic modulus of the wedge segments via finite-element analysis. The manufacturing technologies for the composite wedge involving a molding process, are presented in detail. Static, creep, and fatigue tests on basalt FRP (BFRP) tendons with the proposed anchorages were conducted. The tensile capacity, long-term deformation, and fatigue life of the tendon–anchor assemblies were analyzed. The experimental results show that the proposed anchorage exhibits an anchor efficiency factor of up to 91%; the corresponding value for a conventional steel–wedge anchorage is only 80%. The tendon–anchor assembly displays a creep behavior similar to that of BFRP tendons. Furthermore, the system survives 200 million cycles of fatigue load at a maximum fatigue load of 0.5 Fu (Fu is the tensile capacity of the tendon–anchor assembly) and a load range of 0.05 Fu. Wedge–sleeve and tendon–wedge sliding under a sustained load or cyclic load cannot cause considerable prestress loss in practical engineering. The results validate the effectiveness of the proposed anchorage under service loads and demonstrate the application prospects of this anchorage.
publisherASCE
titleComposite-Wedge Anchorage for Fiber-Reinforced Polymer Tendons
typeJournal Paper
journal volume26
journal issue2
journal titleJournal of Composites for Construction
identifier doi10.1061/(ASCE)CC.1943-5614.0001194
journal fristpage04022005
journal lastpage04022005-11
page11
treeJournal of Composites for Construction:;2022:;Volume ( 026 ):;issue: 002
contenttypeFulltext


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