Cost Effective Cable Stay Bridge Construction With Variokit Balanced Cantilever Equipment 4 From 5

VARIOKIT Composite bridge system

In this process, the false work is moved to a new concreting position along with the formwork.

Contrary to the cantilever launching method (compare page 24 FF), the concreted component remains in its position.

Depending on the shape of the structure, an upper or a lower mobile support is used.

the advantages of the upper system are high capacity on curves and free selection of the bridge cross-section. Moreover, the railway loading gauge under the new structure is not affected normally.

The valiant with the lower mobile support is advantageous due to lower cost implications.

Furthermore, pre-assembled reinforcing elements can be brought in with the crane (time advantage) and suspensions through the structure are not required.

Formwork Technology As a rule, bridge structures that are constructed with the help of mobile false works are designed as box girder cross- sections.

In exceptional cases, even T-beam cross-sections are used.

In the case of mobile false works, the false works is constructed from standard components of the girder wall formwork.

Steel beams with special connections and joints are mainly used for mobile support.

While planning, it must be ensured that the formwork and scaffolding systems arc well coordinated since there is a close interaction between both systems.