This study addresses the failure risk of carbon fiber reinforced polymer cable anchorage systems during bridge deck tanker fires. Through numerical simulation, the most unfavorable temperature-rise curve was established. Experimental validation assessed the temperature response of the load transfer medium and the protective efficacy of three types of fire-resistant materials. Results indicate that at 2 m/s wind speed, the most hazardous thermal profile occurs 1 m directly above the tanker’s roof surface. Epoxy-based load transfer medium presents anchoring failure risks beyond 123°C, with temperature gradient attenuation dependent on material thermal properties. Comparative analysis indicates that the fireproof coating-insulating cement composite system provides superior protection compared with single-layer high-silica needle-punched felt. To ensure the carbon fiber reinforced polymer anchoring system maintains 3-h fire resistance integrity, the minimum protective configuration requires either 300-mm high-silica felt, 75-mm insulating cement, or a 2.38-mm fireproof coating.
Zhou et al. (Sat,) studied this question.