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Expansion joint replacement
QUICK-EX for modular joints
Dehnfugen
Eigenschaften
Integrierte Lösung im Grunddesign für einfachen Austausch der TENSA-MODULAR Lamellenfugen
Schneller Austausch, geringere Einwirkung auf Verkehr
Bestehende Verankerungskonstruktion bleibt bestehen
Kein Herausbrechen, kein Betonieren
Effiziente Wartung auch bei begrenztem Zugang
Principle
A significant portion of a bridge's life-cycle costs for expansion joints is related to replacement expenses. Traditionally, installing a new joint on an existing structure requires the complete removal of the old joint, including breaking out deck material and reconstructing the superstructure. Therefore, a design that simplifies the replacement process is an important consideration in a world where sustainability is truly valued and traffic disruption should really be minimised.
Applications
By designing the expansion joint with the intention of supporting easy replacement, the so-called "Quick-Ex" system for modular expansion joints (quick exchange) significantly reduces the time and effort required to maintain or renew the joint. The design of a “Quick-Ex” modular joint will enable the main mechanical structure, consisting primarily of the centerbeams that form the driving surface and the support bars beneath, to be easily replaced without any need for cutting or welding on the joint or any impact on the main structure. It will not be necessary to break out concrete, cut steel, damage asphalt or affect waterproofing, and therefore placing of these materials to reconstruct the deck will also not be required. The moving parts of the joint are simply unscrewed, lifted out and replaced as a package – far more quickly than would otherwise be possible and with an absolute minimum of impact on traffic.
The “Quick-Ex” design of the TENSA®MODULAR expansion joint with a joist beam and box detail
Assembly of a “Quick-Ex” modular expansion joint
A modular joint as positioned, before placing of reinforcement and pouring of concrete
A fully installed “Quick-Ex” TENSA®MODULAR expansion joint
“Quick-Ex” TENSA®MODULAR joint equipped with noise reducing sinus plates
