JSK Vibrations help clients with vibration related projects in the construction industry.
 
Classic concerns 
-	Concern for vibrations in an upcoming or on-going project.
-	Oversizing of construction elements for vibration related load cases.
-	Need of tuned mass dampers or specification of tuned mass dampers 
(mass, dimensions, price etc.)

Services
-	Vibration measurements on a structure or part of a structure (Box girders, floors, stair cases, grand stands, balconies, stacks, wind turbines etc.)
-	Calculations and assessment of vibrations in structures before and after construction.
-	Design and delivery of tuned mass dampers, typically from 50-3000 kg.

Experience
-	Design of more than 50 tuned mass dampers for floors, stair cases, grand stands, pedestrian bridges and fitness centers.
-	Assessment and calculations of vibrational comfort for numerous structures primarily in Scandinavia.

Publication
-	J.S. Knudsen, N. Grathwol and S.O. Hansen: “Vibrational Response of Structures Exposed to Human induced loads”, 2017.
-	J. S. Knudsen: “Besparelser via Accelerationsberegninger”, 2019.
-	J. S. Knudsen: ”Faldgruber ved det Nationale Anneks”, 2018.

In the white paper “Vibrational Response of Structures Exposed to Human induced loads” a dynamic based model for calculating accelerations are presented. The dynamic model have some benefits  compared to the static based model in the Danish National Annex EN 1991-1-1 DK NA, which is explained. 

Previous cases have included measurements and calculations of office floor vibrations, composite beam vibrations, stair case vibrations, balcony vibrations, grand stand vibrations, box girder vibrations and pedestrian bridge vibrations.

JSK Vibrations can help with vibration control products, vibration monitoring device, shock vibrations, vibrations sensors, vibration diagnostics, vibration data, vibration standards and vibration requirements.

JSK Vibrations

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JSK Vibrations

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