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Updated: Jun 22, 2025

Installation Method to Enhance Quality Control for Fiber Reinforced Polymer Spike Anchors
Published on: April 10, 2018
Structural Behavior of High Durability FRP Helical Screw Piles Installed in Reclaimed Saline Land
Sun-Hee Kim1, Hyung-Joong Joo2, Wonchang Choi1
1Department of Architectural Engineering, Gachon University, Sujeong-gu, Seongnam-si 13120, Republic of Korea.
Abstract:
The bearing capacity of fiber-reinforced plastic (FRP) helical screw piles is determined by the lesser of the breaking load at the bolted joint and the resistance provided by the screw tip area. In this study, compression and tensile tests were performed with the number of bolts and edge distance as variables. It showed similar strength when compared to the failure stress derived from material testing. In addition, considering load resistance performance, the optimal screw cross section was obtained through parametric analysis. Considering the structural behavior of the screw, a prediction equation was presented to design the screw cross-section as a tapered cross-section using a theoretical method. As a result of comparing the screw cross-section with the finite element analysis results, it was confirmed that the design stress and analysis stress showed an error of 1.1 MPa and were within the allowable stress of 80 MPa.
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