Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25036
Title: Analytical solution for the full-range pull-out behavior of FRP ground anchors
Authors: Zheng, JJ
Dai, JG 
Keywords: Analytical solution
Bond-slip relationship
FRP rod
Ground anchor
Pull-out
Issue Date: 2014
Publisher: Elsevier Sci Ltd
Source: Construction and building materials, 2014, v. 58, p. 129-137 How to cite?
Journal: Construction and Building Materials 
Abstract: This paper attempts to predict the nonlinear pull-out response of fiber reinforced polymer (FRP) rods embedded in steel tubes filled with cement grout. Based on a tri-linear bond-slip model, the whole FRP rod is divided into three zones: linear elastic, softening, and frictional. In each zone, a set of two second-order ordinary differential equations are established in terms of the displacements of the FRP rod and steel tube and solved in an analytical manner. When the thickness of the steel tube approaches infinity, the solution can be applied to the problem of FRP rods embedded in rock. Based on the derived solution, the interfacial bond properties and snapback phenomenon are discussed. After the analytical solution is validated by comparisons with four sets of experimental data, the effects of the radius and length of FRP rods, the local peak bond stress and the residual frictional strength on the maximum pull-out load are evaluated through sensitivity analysis.
URI: http://hdl.handle.net/10397/25036
ISSN: 0950-0618
DOI: 10.1016/j.conbuildmat.2014.01.097
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