Modular expansion joint are the most frequently employed types of expansion joints in road bridges. By special steel welding elements arranged side by side and equally controlled they are supported on special load carrying and control systems, intermediate sealing elements with form- and force-fit clamping as well as marked by a continuous anchorage in the structure with permanent connection to seal and coating.Modular expansion joint are categorized into two basic designs:GQF-MZL Expansion Joint and Low-bedding Expansion Joint.
GQF-MZL Expansion Joint:
GQF-MZL type modulus bridge expansion device are the modulus
central beam,cross beam and coupled devices,and coupled devices,
and suitable to bridge with the expansion amount from 80mm to
1200mm.The individual displacement controlling and load
transmission system ensure the strss safety and realize the aim of
equal displacement,which can well adapt the beam displacement
expansion caused by temperature.
Low-bedding Expansion Joint
amount less than 80mm.