Technical requirements of bridge expansion device:
1 the use of rubber (CR, -25, suitable for temperature in -+60 c c c c c c c c c c c c c c c c c) or the use of natural rubber (i.e. NR, suitable for temperature at -40 C -+60 C)
2 steel plate used in the expansion device, quality requirements in line with the provisions of GB374, GB012, the use of profiled steel, (that is, 16MN or Q345) in line with the provisions of JT/T1591.
Install expansion joint device to meet the river bridge direction and route is not vertical to the anchor bar and the displacement control box oblique arrangement, anchor bar and displacement is expansion modulus telescopic device for various telescopic device and MZL160~1200mm 0~80mm of the control box of the welding in the horizontal tilt shaped side beam the anchor bar, angle and edge beam with the direction of the bridge and tilt of the change