[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.21022/IJHRB.2019.8.2.117

Reduced-mass Adaptive TMD for Tall Buildings Damping

Weber, Felix (Maurer Switzerland GmbH)
Huber, Peter (Maurer SE)
Spensberger, Simon (Maurer SE)
Distl, Johann (Maurer Engineering GmbH)
Braun, Christian (Maurer SE)

Publication Information

International Journal of High-Rise Buildings / v.8, no.2, 2019 , pp. 117-123 More about this Journal

Abstract

Tall buildings are prone to wind-induced vibrations due to their slenderness whereby peak structural accelerations may be higher than the recommended maximum value. The common countermeasure is the installation of a tuned mass damper (TMD) near the highest occupied floor. Due to the extremely large modal mass of tall buildings and because of the narrow to broad band type of wind excitation the TMD mass may become inacceptable large - in extreme cases up to 2000 metric tons. It is therefore a need to develop more efficient TMD concepts which provide the same damping to the building but with reduced mass. The adaptive TMD concept described in this paper represents a solution to this problem. Frequency and damping of the adaptive TMD are controlled in real-time by semi-active oil dampers according to the actual structural acceleration. The resulting enhanced TMD efficiency allows reducing its mass by up to 20% compared to the classical passive TMD. The adaptive TMD system is fully fail-safe thanks to a smart valve system of the semi-active oil dampers. In contrast to active TMD solutions the adaptive TMD is unconditionally stable and its power consumption on the order of 1 kW is negligible small as controllable oil dampers are semi-active devices. The adaptive TMD with reduced mass, stable behavior and lowest power consumption is therefore a preferable and cost saving damping tool for tall buildings.

Keywords

Adaptive; Control; Damping; Semi-active; TMD; Vibration;

Citations & Related Records

Times Cited By KSCI : 2 (Citation Analysis)

Reference
Cited By KSCI

1	Ali, A. M., Alexander, J., Ray, T. (2019). Frequency independent hysteretic dampers for mitigating wind-induced vibrations of tall buildings. Struct. Control and Health Monit., DOI: 10.1002/stc.2341. DOI
2	Aly, A.M. (2016). The Use of Bracing Systems with MR Dampers in Super Tall Buildings. International Journal of High-Rise Buildings (IJHRB), 5, 31-41. DOI
3	Aly, A.M. (2014). Vibration control of high-rise buildings for wind: a robust passive and active tuned mass damper. Journal of Smart Structures and Systems, 13, 473-500. DOI
4	Asami, T. and Nishihara, O. (2003). Closed-Form Exact Solution to $H_{inf}$ Optimization of Dynamic Vibration Absorbers (Application to Different Transfer Functions and Damping Systems). Journal of Vibration and Acoustics, Technical Briefs, 125, 398-411. DOI
5	Den Hartog, J.P. (1934) Mechanical Vibrations. McGraw-Hill Book Company, The Maple Press Company, York, PA.
6	Weber F., Huber P., Michalski A., Distl J. and Braun C. (2018) New Reduced Mass Controlled TMD for Tall Building Vibration Mitigation. Proceedings of the CTBUH (Council on Tall Buildings and Urban Habitat) 2018 Middle East Conference, Dubai & Abu Dhabi, UAE, 20-25 October 2018.
7	Zemp, R., de la Llera, J. C., Roschke, P. (2011). Tall building vibration control using a TM-MR damper assembly: Experimental results and implementation. Earthquake Engineering & Structural Dynamics, 40, 257-271. DOI
8	Weber F., Distl H., Fischer S. and Braun C. (2016a). MR Damper Controlled Vibration Absorber for Enhanced Mitigation of Harmonic Vibrations. Actuators 2016, 5; DOI: 10.3390/act5040027. DOI
9	Kim, S.-M., Wang, S, Brennan, M.J. (2011). Robust broadband vibration control of a flexible structure using an electrical dynamic absorber. Smart Mater. Struct. 20, 075002. DOI
10	Kang, J., Kim, H.-S., Lee, D.-G. (2011). Mitigation of wind response of a tall building using semi-active tuned mass dampers. Struct. Design Tall Spec. Build., 20, 552-565. DOI
11	Pinkaew, T. and Fujino, Y. (2001). Effectiveness of semi-active tuned mass dampers under harmonic excitation. J. Eng. Struct., 23, 850-856. DOI
12	Rezaee, M., Aly, A.M. (2018). Vibration Control in Wind Turbines to Achieve Desired System-Level Performance under Single and Multiple Hazard Loadings. Structural Control and Health Monitoring, DOI:10.1002/stc.2261. DOI
13	Soong, T.T. and Dargush, G.F. (1997) Passive Energy Dissipation Systems in Structural Engineering. John Wiley & Sons, Chichester, England.
14	Weber F. (2014). Semi-active vibration absorber based on real-time controlled MR damper. Mechanical Systems and Signal Processing, 46(2), 272-288. DOI
15	Weber, F., Maslanka, M. (2014). Precise Stiffness and Damping Emulation with MR Dampers and its Application to Semi-active Tuned Mass Dampers of Wolgograd Bridge. Smart Mater. Struct., 23, 015019. DOI
16	Weber F., Huber P., Distl H. and Braun C. (2016b) Real-time controlled TMD of Danube City Tower. Proceeding of the CTBUH (Council on Tall Buildings and Urban Habitat) International Conference 2016, Shenzhen, Guangzhou, Hong Kong (China), 16-21 October 2016.
17	Weber F., Distl H., Spensberger S., Benicke O., Huber P. and Braun C. (2017) New Real-Time Controlled Semi-Active Tuned Mass Damper for Human, Vortex and Wind Excitations. Proceedings of the International Footbridge Conference, Berlin, Germany, September 6-8.