Summary         

• A multi-group expansion joint (often called a modularor multiple-gap expansionjoint) is a specializedstructural assembly used inlarge bridges and heavy infrastructure to safelyabsorb massive thermal movements, rotations,and structural displacements exceeding 160mm-2400mm by dividing total movement across multiplesmaller, sealed individual gaps.

• Cutting / welding / assembly /painting / waterproof testing

• Very high producing rate

• Professional team & exquisite workmanship

• Considerable after sale service

• Excellent dimension rate

• Very competitive price

Application 

Common Applications

Long-span highway and railway bridges;

Viaducts and large elevated roadways;

Large industrial structures subjected to extreme thermal shifts.

Features 

Multiple Gaps: Splits large deck movementsacross a series of parallel steel surfacebeams.

Sealed Profiles: Uses watertight elastomericseals between beams to block water anddebris.

Control Systems: Employs elastic springs orcontrol mechanisms to keep equal spacingbetween gaps.

Multi-Directional: Accommodateslongitudinal, transverse, and verticalmovements plus rotations.

Parameters

Installation parameter table