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Comcast Center

 

Philadelphia, USA

1,300-ton Tuned Liquid Column Damper

The 58-story Comcast Center is the tallest building in Philadelphia. Wind-tunnel studies showed that the tower would be subject to significant wind-induced vibration due to cross-wind effects. Preliminary dynamic analysis found that a 1,300-ton tuned liquid column damper (TLCD) would be the most efficient way to manage wind-induced movement: it would be cost-effective and demand minimal space. The largest damper of its kind in the world, the TLCD’s unusual shape minimized its impact on usable floor space without compromising performance. The system delivered substantial up-front cost savings by enabling a supertall design that limited building sway without requiring additional structural material.

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