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The Behaviour of Tuned Liquid Dampers—Experiment and Analytical Solution

Ostermann, D.

In recent years the height of buildings increased dramatically. Today high-rises with heights of more than 500m are built, even in areas with high earthquake risks and strong tropical storms, as for example in the Middle East or in Asia. This makes it necessary to think about new ideas for damping vibrations of these buildings. One possibility is the installation of tuned liquid dampers. Hereby water tanks are installed in the building. The damping characteristics can easily be adjusted to the natural frequencies of the building by changing the height of the water filling in these tanks. In the current contribution a small-scale experiment will be presented and the results of the experiment will be compared to an analytical solution. It can be shown that a damper mass of only 1% of the mass of the building is sufficient to reduce the amplitude of vibrations by 50%.

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The Behaviour of Tuned Liquid Dampers—Experiment and Analytical Solution

Ostermann, D.

In recent years the height of buildings increased dramatically. Today high-rises with heights of more than 500m are built, even in areas with high earthquake risks and strong tropical storms, as for example in the Middle East or in Asia. This makes it necessary to think about new ideas for damping vibrations of these buildings. One possibility is the installation of tuned liquid dampers. Hereby water tanks are installed in the building. The damping characteristics can easily be adjusted to the natural frequencies of the building by changing the height of the water filling in these tanks. In the current contribution a small-scale experiment will be presented and the results of the experiment will be compared to an analytical solution. It can be shown that a damper mass of only 1% of the mass of the building is sufficient to reduce the amplitude of vibrations by 50%.

The Behaviour of Tuned Liquid Dampers—Experiment and Analytical Solution

Ostermann, D.

In recent years the height of buildings increased dramatically. Today high-rises with heights of more than 500m are built, even in areas with high earthquake risks and strong tropical storms, as for example in the Middle East or in Asia. This makes it necessary to think about new ideas for damping vibrations of these buildings. One possibility is the installation of tuned liquid dampers. Hereby water tanks are installed in the building. The damping characteristics can easily be adjusted to the natural frequencies of the building by changing the height of the water filling in these tanks. In the current contribution a small-scale experiment will be presented and the results of the experiment will be compared to an analytical solution. It can be shown that a damper mass of only 1% of the mass of the building is sufficient to reduce the amplitude of vibrations by 50%.

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Title:

The Behaviour of Tuned Liquid Dampers—Experiment and Analytical Solution

Contributors:

Ostermann, D. (author)

Conference:

Technical Council on Lifeline Earthquake Engineering Conference (TCLEE) 2009 ; 2009 ; Oakland, California, United States

Published in:

TCLEE 2009 ; 1-9

Publication date:

2009-06-24

ISBN:

DOI:

https://doi.org/10.1061/41050(357)141

Type of media:

Conference paper

Type of material:

Electronic Resource

Language:

English

Keywords:

Earthquakes , Natural disasters , Hurricanes , Damping , Vibration , Storms , Asia , Seismic effects , Risk management , Middle East , Construction materials , Earthquake engineering , Lifeline systems

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