Cable Stayed Cradle System

A cable stay cradle system cradle system for cable stayed bridges is mounted onto a cable stay the opposite ends of which are attached to anchors on a bridge deck.

Cable stayed cradle system.

A cradle system carries the strands within the stays from the bridge deck to bridge deck as a continuous element eliminating anchorages in the pylons. The design of the cable stayed bridge supports itself. Figg s award winning cable stay cradle system provides better serviceability ease of construction and a longer bridge service life. The innovative cable stay cradle system designed by figg engineering group initially for the maumee river crossing and for use on future cable stay bridges will revolutionize cable stay bridge design.

The figg team has studied designed or helped build 33 cable stayed bridges with main span lengths up to 1 750 and is engineer of record on 9 cable stayed bridges in the united states. Each epoxy coated steel strand is carried inside the cradle in a one inch 2 54 cm steel tube. It has so called cradle system which carries the strands within the stays from bridge deck to bridge deck. The cradle system is disposed along the length of the cable stay and located in a pre formed opening in a pylon.

There are multiple span extra dosed and cradle system bridge designs all included as options for this type of bridge as well. It will allow this type of bridge to be even more economical thus attractive for many major spans around the world. The cradle system includes axially spaced sleeve centering plates that have radially spaced holes through. It can be an unstable design in certain environments.

Each epoxy coated steel strand is carried inside the cradle in a one inch 2 54 cm steel tube. List of the cons of a cable stayed bridge. With their inherent rigidity the use of cad for designing and improvements in the quality of building materials we can definitely expect to see more of these amazing bridges built in. In this new system a continuous cable stay runs from the bridge deck through the cradle in the pylon and back down to the.

The cable stayed bridge design system with all its variation is a cost effective and more aesthetically appealing means of spanning medium to long distances. You can also use cradle systems multiple span options like the jiashao bridge or extra dosed options to create the needed supports for a consistent deck that can support the expected weight that will be placed on the structure one day. A cable stayed bridge should not be installed in a region that is known to experience high wind speeds on a consistent. These cables are continuous which means that this bridge has no anchorages in the pylons and its cables can be removed inspected and replaced individually.

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