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原文传递 Modeling and Parametric Study of the Reanchorage of Ruptured Tendons in Bonded Posttensioned Concrete

题名：	Modeling and Parametric Study of the Reanchorage of Ruptured Tendons in Bonded Posttensioned Concrete
其他题名：	ABAQUS version 6.10[Computer software].Dassault Systèmes,Providence,RI.
正文语种：	英文
作者：	A. O. Abdelatif
关键词：	Posttensioned concrete;Reanchorage;Corrosion;Tendon;Bond;Modeling;Finite element;Rupture;Electronic speckle pattern interferometry (ESPI);Concrete and masonry structures
摘要：	The contribution of ruptured tendons to the residual strength of bonded posttensioned concrete structures is currently assessed based on pretensioned concrete bond models. However, this approach is inaccurate due to the inherent differences between pretensioned and posttensioned concrete. In this paper, a nonlinear three-dimensional (3D) finite-element model is developed for the reanchoring of a ruptured tendon in posttensioned concrete. The model is validated using full-field displacement measurement from 33 posttensioned concrete prisms and previous experimental data on beams from the literature. The influence of different parameters is investigated, including tendon properties (i.e., diameter, roughness), duct properties (i.e., diameter, thickness, material), initial prestress, concrete strength, grout strength, grout voids, stirrups, and strands on the tendon reanchorage. The most influential parameters are found to be tendon and duct properties.
出版年：	2017
论文唯一标识：	P-26Y2017V143N12009
英文栏目名称：	TECHNICAL PAPAERS
doi：	10.1061/(ASCE)ST.1943-541X.0001898
期刊名称：	Journal of Structural Engineering
拼音刊名(出版物代码)：	P-26
卷：	143
期：	12
页码：	103-118