Construction—EMEA—Luxembourg—Bridges
Finally, the decision was made to push the
strands in from the bridge deck towards the
pylon using different compaction clamps.
Thanks to the equipment that had been
especially adapted by DSI, the up to 80m
long stay cable strands could be pushed in
completely. Afterwards, the stay cables were
stressed in two steps using the Con-Ten
Method developed by DSI.
After a construction time of approximately
3 months from site setup to technical approval,
the complete work was handed over to the
customer without any complaints. In particular
the fact that there were no visible welding
seams on the stainless steel components
including the continuous ducts illustrates the
high quality of the products and processes
that were used. The quality was decisively
influenced by the ATIS post-treatment robot
supplied by the Alpin Technik Company.
The robot was developed during construction
work and used once stay cable assembly had
been completed. The robot applied the final
polishing to the continuous stainless steel
ducts using special rotation brushes shortly
before the bridge was opened to traffic.
DSI Unit
DYWIDAG-Systems International
GmbH, BU Post-Tensioning,
Germany
DSI Scope
Design, development, production,
supply, installation, engineering
services, technical support
DYWIDAG Products
Types DG-P37 and DG-P31,
20-80m long DYNA Grip ® -Stay Cables
This new development by DSI and Alpin
Technik will be used for the regular main
assessments of stay cable bridges with
stainless steel ducts to permanently maintain
the stainless steel appearance and surface
structure.
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