Proposed GFRP Connectors in Sandwich Panels

摘要

In this paper, a precast concrete sandwich panel system with high thermal resistance and optimum structural performance was developed. Fiber-reinforced polymer was used to provide the connector in this panel system. Each connector was prefabricated in a V-shape with both end hooks providing anchorage in the reinforced concrete wythes. The developed shear connecting system is described, along with its performance and advantages. An experimental investigation of the connecting system was conducted. The experimental program included pure-sheartesting of push-off specimens with a variety of wythe connectors, flexure testing of full-scale specimens with FRP connectors, and testing of FRP material. The developed shear transfer and degree of composite were evaluated and the observed behavior of the members is presented. Design criteria are given for use by engineers and others to apply with appropriate engineering judgment.