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Title: Grouted Extruded-Strand Tendons: Friction Coefficients and Differential Individual Strand Forces

Author(s): Hyeongyeop Shin, Thomas H.-K. Kang, and Jong-Hyok Park

Publication: Structural Journal

Volume: 117

Issue: 3

Appears on pages(s): 223-233


Date: 5/1/2020

Due to increasing demand and application of grouted extruded- strand tendons, need for analysis of tendon characteristics for design and construction exists. Measured for this paper were friction coefficients and strand tensile force distribution of horizontal circumferential tendons of a nuclear containment structure. Results indicated that grouted extruded-strand tendons had very low curvature and wobble friction coefficients (μ = 0.0277/rad and k = 0.0006/m [0.00018/ft]) in comparison to that observed for grease-filled bare-strand tendons. Furthermore, individual strand tensile forces in grouted extruded-strand tendons achieved lower standard deviation than that of bare-strand tendons.


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