Public road bridge roof beam expansion joint structure

The utility model discloses a public road bridge roof beam expansion joint structure installs between the adjacent roof beam body of public road bridge roof beam, be provided with rank trapezoidal surface on the roof beam body, rank trapezoidal surface includes A face and B face, form the T type groove that is used for installing expansion joint structure between the rank trapezoidal surface of adjacent roof beam body, install receiving the clamp plate, install at the waterproof stripe between two B faces and install be used for sheltering from two transverse joint plates that receive the clamp plate gap on two receive the clamp plate on the A face including the symmetry. The utility model discloses have good water -proof effects, the effectual rainwater of avoiding is bad to telescoping device production damage by water, the utility model discloses being provided with and making resilient means by rubber materials, the effectual interact who avoids receiving the clamp plate leads to the fact expansion joint