Product Description
Bridge Expansion Joints, Modular Expansion Joints
Features:
1. Sturdy and Reliable
Our expansion joint boasts superior craftsmanship, with side and middle beams made from tough 16Mn steel, engineered to withstand the immense vertical loads from high-traffic, heavy-tonnage vehicles and lateral impacts. The welding of the anchoring components to both beams and the bridge deck ensures that vehicle loads are efficiently transferred to the abutment. This results in a structurally sound, durable product ideal for bridges with design loads of steam over 20 and hanging up to 120.
2. Sensitive Expansion
The displacement control system of this device incorporates advanced spring elements like rubber springs, PTFE pressure bearings, or inclined support members. This design guarantees uniform displacement and minimal friction, ensuring smooth expansion and contraction within each group.
3. Smooth Bridge Deck and Comfortable Travel
Our advanced design ensures that the beam expands and contracts freely while maintaining a smooth, unified bridge deck surface, delivering a seamless, comfortable driving experience.
4. Water Stopping and Corrosion Prevention
This expansion joint is equipped with a neoprene rubber sealing strip embedded in the groove of each steel beam group, providing excellent elastic deformation capabilities, waterproofing, and dustproofing. It effectively shields internal components and base bearings from erosion.
5. Large Displacement and Convenient Selection
Manufactured according to modular standards, this device offers displacement ranges from 80 to 1200mm. This flexibility allows bridge design and construction departments to select the appropriate specification, accommodating the actual expansion and contraction needs of the bridge superstructure.
Telescopic Resistance:
Single-Seam Expansion Joint
1. The compression force during contraction is 0.1KN/m.
2. The longitudinal shear force within the working range of the expansion joint is 2.0KN/m.
Multi-Seam Expansion Joint
1. The compression force during contraction is 0.1KN/m.
2. The tensile force during stretching is 4.0KN/m.
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