Posts Tagged with Building & Structure

Monumental Staircase Vibration Abatement Using a Tuned Mass Damper-4

To effectively address the vibration issues of a monumental staircase in a healthcare educational facility,  DEICON supplied and three tuned mass dampers (TMDs) and have them integrated into the structure. The TMDs were designed and calibrated to target the first bending mode of vibration of the staircase, thereby significantly enhancing its stability and ensuring a […]

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Hydraulic Cylinders Configured as Viscous Damping Devices

Connecting the two sides of the piston in a double-acting, double-rod cylinder through an external adjustable flow control needle valve, transforms the cylinder into a fluid viscous damping device (VDD). Vibrational motion prompts the fluid to transfer from one piston side to the other via the flow control valve, dissipating vibration energy due to the […]

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Gymnasium Floor Vibration Mitigation Using Tuned Mass Dampers

In modern gymnasiums, floor vibrations caused by various activities can be a significant issue, particularly when the gym is situated on higher floors of a multi-story office building. DEICON recently addressed this challenge by supplying two tuned mass dampers (TMDs) to mitigate vibrations in the floor system of one such gym on the 2nd floor […]

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Vibration Control of Long Span Balcony in a Church Using Tuned Mass Dampers

Upon having the construction of a new church near completion, walking induced vibration was perceived on a long span balcony. DEICON conducted on-site measurements and identified the first two natural frequencies of the balcony. In addition, the participating mass and the damping ratio of mode 1 of the balcony were evaluated. DEICON designed and fabricated […]

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Vibration Control of Long Span Balcony in a Church Using Two Tuned Mass Dampers

Upon having the construction of a new church near completion, walking induced vibration was perceived on a long span balcony.  DEICON conducted on-site measurements and identified the first two natural frequencies of the balcony.  In addition, the participating mass and the damping ratio of mode 1 of the balcony was evaluated.  Tuned damping was used […]

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Monumental Staircase Vibration Abatement Using a Tuned Mass Damper-3

To address the vibration of a monumental staircase in an office building, the structural engineer of the project incorporated a 500 lb tuned mass damper (TMD) into the design.  DEICON designed, fabricated the TMD to be installed underneath the landing Figure 1 shows the tuned mass damper. The dynamic attributes of the monumental staircase, namely […]

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