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International Database and Gallery of Structures

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Hong Kong-Zhuhai-Macao Bridge resists laminar flows with Tuned Mass Dampers

The following images, photographs, illustrations, videos and media or "Hong Kong-Zhuhai-Macao Bridge resists laminar flows with Tuned Mass Dampers" include visual details and information about this product or case study.

Design of the biggest TMD for the Jianghai Navigation Bridge: The unstressed height of the springs is 4 m, compressed they are just 960 mm high. The total dimension at full vertical amplitude is 1,000 x 1,730 x 1,880 mm.

Half of the springs display of a left winding, the other half of a right winding: this prevents torsional effects when the spring mass moves up and down.

Rotation damper inside of the TMD, and tooth bar

Test of an original TMD for the Deep Water Viaduct in the test laboratory in Wuhan. The TMD displayed exactly the required performance in respect to natural frequency (+/-1 %) and damping (+/-10 %)

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