METHOD OF MAINTAINING AND REINFORCING CABLE ANCHORAGE PART IN CABLE-STAYED BRIDGE

摘要

The present invention relates to a repair and reinforcement method for an anchorage portion of a bridge cable. A repair structure for an anchorage portion of a bridge cable comprises: an anchor head anchoring an end portion of a cable of a bridge; and a socket which has an inner space through which the cable penetrates, accommodates an anticorrosive in the inner space, has an opening formed at one end portion so that the anchor head is located, and has a through hole formed at the other end portion so that the cables penetrate one by one. The repair method for the anchorage portion of the bridge cable comprises: an anticorrosive removal step of removing the anticorrosive from the inner space of the socket; a leakage portion reinforcing step of reinforcing a leakage portion of the anchoring portion; and an anticorrosive injection step of filling the inner space with a new anticorrosive. The repair is performed so that the anticorrosive at the anchoring portion of the bridge cable is no longer leaked, and at the same time, the corrosion problem of strands of wires on the outer end portion of a cable sheath is completely solved while maintaining the performance of the bridge.