Open AccessInfluential Parameter analysis of spread GFRP stay-in-place form deformation
Author(s) -
Zhaojie Tong,
Hailong Zhang
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/758/1/012089
Subject(s) - fibre reinforced plastic , deflection (physics) , transverse plane , materials science , structural engineering , stiffness , composite material , deck , rib cage , engineering , optics , physics
Recently spread GFRP stay-in place forms with T-ribs have been applied to bridge engineering in China. The deformation non-uniformity of spread GFRP plates in the deck transverse direction is more significant than that of narrow GFRP plates. In order to investigate the influential parameters of deformation, a 1.8 m simply supported GFRP plate was analysed using ANSYS. The analysis results show that (1) the maximum deflection of side GFRP plates is larger than that of middle plates; (2) the maximum deflection is affected by rib thickness, plate height, rib spacing and bottom plate thickness; (3) the non-uniformity of deflection is mainly affected by rib spacing and bottom plate thickness; (4) the rib thickness has little effect on the non-uniformity of deflection, and a higher GFRP plate results in a larger non-uniformity of deflection. Based on the analysis results, some measures on improving the flexural stiffness of GFRP plates in the transverse and longitudinal directions are proposed.