Semi-rigid column-base connections in pultruded GRP frame structures

摘要

A review of moment-rotation tests on bolted connections between pultruded Glass Reinforced Plastic (GRP) Wide Flange (WF) sections highlights the lack of test data on column-based connections. Details of five bolted web and web and flange cleat connections and the test rig used to determine their moment-rotation characteristics are given. Moment-rotation responses are then presented for each connection. Simple models are described for predicting their initial rotational stiffness, ultimate moment and moment-rotation response. The models predict the response of bolted web and flange cleat column-base connections reasonably well and may be useful for design.