The Development of New Type GFRP Hollow Panels

Abstract

Under the background of global energy transformation, pumped storage power stations are becoming more and more important. Most of their water retaining structures adopt face rockfill dams, but their concrete panels will have many problems such as durability. In this study, a new type of GFRP hollow panel was developed for face rockfill dam. The nonlinear behavior and damage process of the material were simulated by finite element analysis and UMAT subroutine. Through analysis and comparison, it is found that the triangular section form is superior to other forms in terms of stress distribution and bearing capacity. After optimization design, the optimal section takes into account the stability, safety and economic benefits of the structure. The research results provide a high-performance panel solution with high construction efficiency and low maintenance cost for the face rockfill dam, and provide an important design reference for the application of GFRP composite materials in water conservancy projects in the future.

Theoretical and Experimental Research on Deflection of Hollow Slabs Set by Thin-Walled Corrugated Tubes on Simply Supported and Fixed Constraints in Opposite Sides

“…A new type of GFRP hollow panel was developed to face a rockfill dam by Wei Y (2024). They simulated the nonlinear behavior and damage process of the material by finite element analysis and UMAT subroutine and found that the triangular section form is superior to other forms in terms of stress distribution and bearing capacity [8]. In order to improve the structural integrity and blast resistance of RC beams, rubberized steel fiber-reinforced concrete beams were proposed by Mahmoud T. Nawar (2024) [9].…”