Ground anchor type suspension bridge rotary cable rotating saddle lower force transmission device and construction method

The invention provides a ground anchor type suspension bridge rotating cable rotating saddle lower force transmission device and a construction method.The force transmission device comprises an arc saddle body, an arc sliding pair, an arc stop block and a pushing limiting set, the arc saddle body is fixedly connected with a saddle head of a rotating cable saddle, and the arc sliding pair comprises an upper bearing plate, a sliding plate and a lower bearing plate which are arranged in an attached mode; the upper bearing plate and the sliding plate are arc-shaped plates, the surface, facing the sliding plate, of the lower bearing plate is an arc surface, the upper bearing plate is fixedly connected with the arc-shaped saddle body, and the lower bearing plate is anchored on the anchorage; the number of the arc-shaped check blocks is two, and the two arc-shaped check blocks are fixed to the ends of the two sides of the upper bearing plate in the longitudinal direction and abut against the two sides of the arc-sha