![]() ![]() The Independent: decay plot showing damper performance. Analysis modeling and softwareįigure 8.257. For the wind tunnel and damper there were other codes listed in the wind tunnel report for the design of the damper tank. 8.2.15.4.3 Structural and damping design Code and guidelines This force can act in the X or Y axis directions. ![]() Hence the total peak force for the 700-year return period extreme wind event is 235 kN. The lateral loads exerted by the liquid onto the tank walls is calculated using Newtown’s second law with the aforementioned building acceleration increased by a factor of 2 to account for the higher water accelerations. Given that the total mass of water within the damper is 189,271 L. The results of the wind tunnel study indicate that assuming the inclusion of an auxiliary damper system provides 0.5% additional damping, the peak building acceleration for the translational motions for the 700-year return period extreme wind is 63.5 mg (5.1 m/s 2). With the inclusion of baffle screens (or other types of energy-dissipating devices) the effect is reduced, such that the acceleration of the water within the liquid damper is only twice as high as that of the building. The acceleration of water within a liquid damper is typically 2 times that of the building’s acceleration but can be as much as 3 times higher. ![]()
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