The invention relates to a bridge intelligent cable
system with a built-in
fiber grating sensor, which is used for cable bearing structures of a cable-stayed bridge, a suspension bridge, an
arch bridge and the like. The bridge intelligent cable
system comprises an anchoring cup (1), a dividing plate (5), a connecting cylinder (4), a
fiber grating sensor and a cable body (11), wherein the
fiber grating sensor comprises a fiber grating
strain sensor (9) and a fiber grating temperature sensor (10),
tail fibers of the fiber grating
strain sensor (9) and the fiber grating temperature sensor (10) are led out, the packaged fiber grating
strain sensor (9) is fixedly connected to an outer steel wire (3) at the position of the connecting cylinder (4), the packaged fiber grating temperature sensor is suspended on the steel wire (3) at position of the connecting cylinder (4), a hole (5-1) is penetrated in the dividing plate (5), and preserved steel pipes (7) are primarily imbedded in the connecting cylinder (4) and the anchoring cup (1) in advance. The invention can improve the
survival rate of the fiber grating sensor and the optical fibers during the manufacture and the application of the cable, ensure a reliable
embedding process of the fiber grating sensor and effectively lead fiber grating signals out of the cable body in a distortionless way.