The application discloses a kind of
active fire-fighting cooling systems and methods for suspension bridge main cable, including monitoring unit,
water supply unit,
spray cooling unit and
control unit, monitoring unit is laid in the bottom of main cable and stiffening beam top, real-time monitoring
bridge deck fire and main cable temperature;
Water supply unit is equipped with two, including water pump group and
water supply main
pipe,
water supply main
pipe one end goes into river, the other end is laid to midspan along bridge
tower, stiffening beam access to midspan;Main cable fireproof area is divided into multiple spray zones along midspan to two sides, each spray zone is equipped with
spray cooling unit, and spray zone is communicated with water supply main
pipe;
Control unit is connected with monitoring unit, water supply unit and
spray cooling unit.The application controls corresponding water supply unit to
open water supply according to the main cable temperature and fire location monitored by monitoring unit, triggers corresponding spray zone unit to start spraying cooling water, realizes the accurate cooling of main cable, and effectively solves the high temperature damage problem of main cable under fire through
active protection mode.