Dynamic behavior of two cable-supported footbridges – The Dublink LinK (Ohio) and North Atwater footbridges (California)

Hybrid event

This conference is presented in hybrid mode. You have the choice to attend in person at the ÉTS or online.

Attending the conference in person at the ÉTS allows you to meet the speakers and other colleagues while respecting health measures. The alternative of attending the conference in virtual mode is still offered.

General information

This conference will be presented in English. Cette conférence sera présentée en anglais.

The content of the conference (PowerPoint) cannot be shared with participants after the conference.

Description of the conference

The presentation will use two case studies of cable supported bridges to discuss the challenges associated with analysis for vibrations and the mitigation of both vertical and horizontal movements.

The Dublin Link is a signature pedestrian bridge across the Scioto River in Dublin, Ohio. The gracefully aesthetic, 230-m-long bridge follows an “S” curve alignment, with a steel superstructure that passes through the “eye” of the concrete pylon tower without any vertical support. The bridge deck is a steel box girder, with an asymmetric “V” form that changes shape as users cross while maintaining a 4.2-m clear deck width from end to end. The pylon has a total height of 53 m and measures a dramatic 33 m high from the walking surface to the top of the tower. A critical transportation link for pedestrians and bicyclists, the Dublin Link connects the site of the future Riverside Crossing Park on the east side of the river to Downtown Dublin’s commercial, residential and retail businesses on the west side.

The North Atwater pedestrian bridge is located over the Los Angeles River in Los Angeles, California. The 99-m-long structure features a 38-m-high mast and steel suspension cables. A symbol of achievement for the Los Angeles River Revitalization Plan, the signature bridge connects the rapidly growing Atwater Village on the east bank to the Los Angeles River Bike Path on the west bank and provides access to the extensive Griffith Park trail network. To accommodate pedestrians, cyclists, and equestrians, the bridge deck is divided into two separate 3.6-m-wide pathways. The pedestrian/bicycle path uses a hardwood deck and stainless-steel mesh railings, while the equestrian side is topped with horse-friendly rubber paves and a less transparent wooden picket railing system. TYLin designed a system of tuned mass dampers to reduce the magnitude of vibrations during severe equestrian loading to an acceptable range and prevent vibrations from continuing after horses pass off the bridge.

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