Connecting device for hogging moment area of steel-concrete composite beam and construction method

The invention relates to a steel-concrete composite structure hogging moment area connecting device and a construction method.The steel-concrete composite structure hogging moment area connecting device is arranged between a steel beam and a bridge deck slab and comprises a rubber-polytetrafluoroethylene composite plate arranged in a steel beam hogging moment area; the rubber-polytetrafluoroethylene composite plate comprises two layers of rubber plates located on the upper layer and the lower layer and two layers of polytetrafluoroethylene plates arranged between the two layers of rubber plates, the rubber plate located on the lower layer is connected with the upper surface of the steel beam, the rubber plate located on the upper layer is connected with the bridge deck slab, and the two layers of polytetrafluoroethylene plates are allowed to slide relatively to generate friction. And relative sliding can be generated between the two polyfluortetraethylene plates after concrete pouring is finished. Relative sl