Production and Installation of D60 and D80 Expansion Joints for Highway Bridges

Function of Bridge Expansion Joints

1. Alleviate expansion and contraction deformation of bridges caused by natural factors such as temperature and humidity, reduce the stress on the bridge structureProduction and Installation of D60 and D80 Expansion Joints for Highway Bridges, thereby extending the service life of the bridge.

2. Protect the bridge structure from the impact of external environments, such as rainwater and dust, thereby reducing bridge maintenance costs.

3. Can bear the weight of the bridge deck, distribute the deck load, and ensure the safety of the bridge.

4. Can buffer the impact of natural disasters such as earthquakes, protecting the bridge structure from damage.

Features of Steel Support Expansion Joints:

① High structural strength; ② Provide continuous support for wheels, ensuring good driving comfort; ③ Connection with the beam body uses pre-embedded steel componentsProduction and Installation of D60 and D80 Expansion Joints for Highway Bridges, ensuring reliable connection; ④ Strong resistance to impact and vibration, with good durability; ⑤ Can accommodate large horizontal displacements.

Features of Combined Expansion Joints:

① Rely on the shear deformation of the rubber body between the upper and lower steel plates to accommodate structural deformation; ② The angle steel of the expansion jointProduction and Installation of D60 and D80 Expansion Joints for Highway Bridgeseffectively strengthens the end strength of the beam body.

Features of Modular Expansion Joints:

① Complex structure; ② Good sealing performance and excellent waterproofing and drainage; ③ Suitable for bridges requiring large expansion capacity; ④ High overall structural stiffness with good durability; ⑤ Good driving comfort.