Bridge expansion joint device

The utility model belongs to the technical field of the road and bridge engineering, a bridge expansion joint device is disclosed, it is including the shaped steel boundary beam that sets up in pairs,and each is connected with the waterstop between to the shaped steel boundary beam, and is right at each the shaped steel boundary beam with the medial extremity that the waterstop is connected has been seted up and has been fixed the first draw -in groove at waterstop both ends, it is wherein, right at each the second draw -in groove has still been seted up in opposite directions to shaped steelboundary beam medial extremity, the second draw -in groove is located first draw -in groove top still is connected with the pushing off the slag elastic plate between two second draw -in grooves seting up in opposite directions, recessed and its the transversal arc of personally submitting of pushing off the slag elastic plate. The utility model provides a current bridge expansion joint can't toeffectively protect the wat