Korea's first bridge vibration control device inside the main girder

In order to reduce vibration caused by the wind load, TMD vibration control device was installed inside the main girder of the bridge and this is not only the first time in Korean bridge construction history but also is a very rare case on an international level as well. This is especially more meaningful since TESolution designed, manufactured, installed and tested the device and was involved in most of the procedures.

The photo shows the exterior of the TMD and testing of the device and we were able to prove that our vibration control device indeed is very good at reducing vibration by significantly increasing damping ratio. Also, wind load as well as the vibration caused by the moving vehicles were also well under TMD's control. Since this TMD is permanently installed inside the bridge's main girder, we expect it to continuously play an important role reducing vibration in the future.