Towards rational design approaches for FRP reinforced concrete structures in fire

摘要

Fire safety is essential in the design of buildings and thus design procedures are needed for fibre reinforced polymer (FRP) reinforced concrete structures. Several full-scale fire tests have shown that FRP reinforced concrete structures can perform effectively in fire conditions, especially if the bars are anchored in cooler regions of the structure. Based on this evidence, the most recent version of American Concrete Institute (ACI) 440.1R-15 describes general design approaches for FRP reinforced concrete structures but little specific guidance is provided. Canadian standard CSA-S806 provides a semi-empirical approach for determining the fire resistance of FRP reinforced concrete slabs based on minimum concrete cover. The paper will summarize recent research including full-scale tests at the National Research Council of Canada and will outline potential rational approaches for designing for fire safety of FRP reinforced concrete slabs.