DSI awarded contracts for the supply of stay cables for 8 new bridges Delivery of DYNA Grip ^® System and DYNA Bond ^® System for cable stayed bridges

DYWIDAG-Systems International (DSI) is pleased to announce the receipt of orders for stay cables on eight additional bridges around the world.
Cable stayed bridges are very efficient structural systems with light weight superstructures and large spans. The most important elements of these aesthetically pleasing and often dramatic structures are the closely spaced stay cables which transfer the loads to the foundation via the pylon. It is essential that these tensile elements are durable and require low maintenance. They are generally designed to be restressable and replaceable and must be extensively tested according to the new fib recommendations (Bulletin 30).
DSI is proud to have been chosen to deliver its DYNA Grip ® System to cable stayed bridges in Germany, Czech Republic and for four new bridges in USA.
The DYNA Grip ® System consists of an anchor block in which the strands are anchored by 3 part-wedges with high dynamic performance. A ring nut is threaded on the anchor block to transmit the cable force via the bearing plate into the structure. A steel pipe which incorporates centering and sealing provisions for the strands is welded to the anchor block.
In addition, DSI has been awarded contracts for delivery of the DYNA Bond ® System for bridges in Croatia and Puerto Rico.
The DYNA Bond ® Systems consists of a conical steel pipe (bond socket), supporting a wedge plate where the strands are anchored with 3-part-wedges. A ring nut is fitted on a threaded end of the bond socket and distributes the cable force through a bearing plate into the structure. After filling the bond socket with cement or epoxy grout the dynamic loads are then partly resisted at the wedges and partly transmitted by the bond between strands and bond socket directly to the bearing plate and the supporting structure.
The details for the new bridge projects are as follows:

Domovinski Most, Croatia - 2 Pylons/64 Stays, Span Length (72+120+72m)
Freddie Mac Bridge, USA - 2 Pylons/6 Stays, Span Length (43.9m)
La Plata, Puero Rico - 2 Pylons/48 Stays, Span Length (80+160+80m)
Marsupial, USA - 6 Pylons/24 Stays, Span Length (3x 24+30+24m)
Ziegelgraben, Germany - 2 Pylons/32 Stays, Span Length (198+126m)
Prospect Verona Bridge, USA - 2 Pylons/40 Stays, Span Length (146+354+146m)
Pomeroy Mason, USA - 2 Pylons/48 Stays, Span Length (74+206+74m)
Nymburk Bridge, Czech Republic -  2 Pylons/24 Stays, Span Length (41+132+41m)