Expansion Joints of Highway Bridge Section Steel

• Customization: Available
• After-sales Service: on Line
• Certification: DIN, BS, ASTM
• Life: Permanent Bridge
• Across Way: Open Bridge
• Usage: Over Water Bridge, Public Iron Dual Purpose Bridge, Highway Bridge
• Material: Prestressed Bridge
• Product Name: Bridge Expansion Joint
• Weight: Customization
• Length: Customization
• Thickness: Customer Requirements
• Advantage: Durable
• Transport Package: Standard Shipping Packaging or Customized
• Trademark: YIZHUO
• Origin: Hebei, China
• HS Code: 4016931000
• Production Capacity: 20000 Meters/Month

Product Description

Product Description

The role of bridge expansion joints
    To meet the requirements of bridge deck deformation, expansion joints are usually installed between the two beam ends, between the beam end and the bridge abutment, and at the joint position perpendicular to the bridge. The expansion joint is required to be able to expand and contract freely in both parallel and perpendicular directions to the bridge axis, and should be smooth and free of bumps and noise when vehicles pass by; It should be able to prevent rainwater and soil from infiltrating and blocking; Installation, inspection, maintenance, and removal of dirt should be simple and convenient. The railing and bridge deck pavement at the expansion joint should be disconnected. The function of bridge expansion joints is to regulate the displacement and connection between the upper structures caused by bridge building materials and vehicle loads. Once the expansion device of the diagonal bridge is damaged, it will seriously affect the speed, comfort, and safety of driving, and even cause driving safety accidents.
 

    GQF-C, GQF-Z, GQF-L, GQF-F, and GQF-MZL modular bridge expansion devices are bridge expansion devices designed using hot-rolled integral shaped steel. The GQF-C, GQF-Z, GQF-F, and GQF-L expansion devices are suitable for bridge joints with an expansion capacity of less than 80mm. The GQF-MZL expansion device is a modular bridge expansion device composed of side beams, middle beams, crossbeams, and linkage mechanisms, suitable for large and medium span bridges with an expansion capacity of 80mm~1200mm.

Features
 

1.Accommodate any bridge deck expansion joint movement;
2.A smooth transition for vehicular traffic;
3.Durable neoprene trough to channel water away from the structure;
4.Replaced without the need for excavation of the anchorage system;
5.Lasts the life of the bridge deck under normal circumstances;

 

What are the structural requirements of type steel expansion joint?
1.In the two directions of being parallel and being perpendicular to the axis of the bridge are free to flex;
2.Firm and reliable;
3.There is smooth and there has no sudden jump or noise when the vehicle is passing by;
4.Waterproof and prevent infiltration of debris blocking;
5.It's simple and convenient to Installation, inspection, maintenance and removal of dirt;

 

Regarding steel expansion joints, the following points should be noted:
1.If the position of the embedded steel bars on the beam plate is incorrect or there is no pre embedded reinforcement,you need to use the reinforced fill bar;
2.Clean and link the anchor after cutting;
3.The welding seam of reinforcing steel should be enough and the welding should be firm;
4.The surface elevation of concrete should be correct;
5.If you want the effective telescopic performance,you should ensure the anchor should be firm;
6.The curing time of concrete should be enough.Don't open the traffic because of the lack of maintenance time.

details

Overall dimensions and installation diagram for various specifications of 0-80mm type

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