What should be paid attention to during the installation of bridge expansion joints?

The bridge expansion joint is a steel-rubber composite bridge expansion joint. Because of its relatively low cost, excellent performance, strong bearing capacity, good anti-aging performance, low noise when the vehicle is running, long service life, and easy maintenance, it has been widely used in bridge engineering in my country. So, what are the problems that should be paid attention to during the installation of expansion joints? Let's take a look.

Make sure the azimuth altitude is correct. In order to make the installation height and centerline orientation of Mauler correct, a transverse suspension beam is placed every 1.2m along the width of the bridge. After confirming that there is no deformation or deflection during the temporary fixation process, all the anchor ribs and pre-embedded ribs on both sides of the telescopic installation are welded firmly.

Tight seams. After the welding is completed, in order to prevent concrete and sundries from falling into the gap, the gap should be tightly plugged with foam boards to prevent grout leakage. Debris tidying up.

Weld quality. In order to ensure the installation quality of expansion joints and ensure sufficient durability of expansion joints, the total tensile force of the welding of anchor rods and beam end embedded parts must be the same as the total tensile force of the welding of anchor rods and expansion joint steel. It is necessary to ensure that the locking plate is removed Finally, the expansion joint assembly can absorb the displacement of the structure without damaging the setting of the concrete poured in the notch.