Bridge expansion model: bridge expansion according to performance and installation methods can be divided into: GQF-C type, GQF-Z type, GQF-L type, GQF-F type, in which the number of modes GQF-MZL-type bridge expansion joint device is bridge expansion joint device using the overall shape of hot-rolled steel shaped design. GQF-C type, GQF-Z type, GQF-L type, GQF-F-type expansion joint device for stretching the amount of 80mm below the bridge joints, GQF -MZL type expansion joint device is Modular bridge expansion joint device by the side of the beam, the beam, beams and linked institutions, and for stretching the amount of 80mm-1200mm large and medium span bridges divided highway bridge expansion: mold bridge expansion devices and KS telescopic device and TST thermoplastic elastomer telescopic device