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Study on the distribution of shear stress in the web of GFRP I-girder
Pages: 82-86
Year: Issue:  6
Journal: Applied Science and Technology

Keyword:  GFRPI-girderwebshear stressdistribution law;
Abstract: At present, for the purpose of simplifying calculation, glass fiber reinforced plastic ( GFRP ) protruded profiles are usually considered as isotropic materials in the studies on the shear performance of GFRP and concrete composite beams. However, it is unreasonable to use the theoretical formula derived from the isotropic materials di?rectly, due to the anisotropy of GFRP. To this end, finite element simulation software ABAQUS was used to analyze the GFRP I?girders composed of different laying modes, and the distribution nephograms of shear stress and the dis?tribution regularity along the web of different layers were obtained. The results show that the shear stress distribu?tions of ply angle 0°and 90° were parabolic, which are similar to those of isotropic materials, and layers with other ply angles were quite different. Among those analysis results, the maximum shear stress in the web is 1.06 times of the average value.
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