Author: R. Kashani (DEICON)
4 January 2016
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R. Kashani (DEICON)
Following the measurement of vibration and finite element analysis of the floors, 50 tuned mass dampers(TMDs) (two for each room) were designed, manufactured and installed to effectively address the vibrationchallenges of the first structural modes of the floors they were designed for.
After installation of the TMDs, the effectiveness of the tuned damping solution was evaluated via furthermeasurements. TMDs effectively dampened the first structural modes of the floors in various rooms andlowered their walking-induced vibration to acceptable levels.
This short article describes the rehabilitation of an office building in Baghdad damaged by a missile strike during the 2003 Iraq War. The author briefly sets out the damage to the building’s steel frame, explains how a structural model was created to enable the design of a supporting steel frame, and describes the installation of the temporary supporting frame and new steel columns using hydraulic jacks to raise the building’s upper stories.
This article illustrates how structural timber fared at the Grade II listed Dunston Staiths in northeast England.
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