Innovative GFRP Joints for Pultruded Frames

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Innovative GRFP Joints for Pultruded FramesParsons/Hielmstad/WhiteUniversity of Illinois at Urbana ChampaignThe use of glass fiber reinforced plastic (GFRP) materials in structural applications is in its infancy These materials offer substantial benefits over traditional materials be-cause of their excellent durability characteristics and flexible manufacturability, How. ever, they remain uncompetitive with traditional materials for many application be-cause of the poor engineering performance of connections. The development of connections suited to the particular characteristics of this material is essential to the economic use of GRFP as a structural material. This research is aimed at such a devel-opment, and, consequently, could have a great impact on the evolution of this material in structural applications.The objectives of this project are: ( 1) Design joints for use in moment resisting frames made from pultruded GFRP members. (2) Develop efficient manufacturing processes for these joints. (8) Test the joints under static loads in a frame and individually under cyclic, quasi-static loadings, (4) Produce simplified analytical models of the joints that can be used to design framed structures.