scholarly journals Performance of fixed-parameter control algorithms on high-rise structures equipped with semi-active tuned mass dampers

2015 ◽  
Vol 25 (7) ◽  
pp. 340-354 ◽  
Author(s):  
Demetris Demetriou ◽  
Nikolaos Nikitas ◽  
Konstantinos Daniel Tsavdaridis
Keyword(s):  
Control Algorithms ◽  
Parameter Control ◽  
Tuned Mass Dampers ◽  
High Rise ◽  
Fixed Parameter

Application of Modular Air-Tuned Damper System in High-Rise Buildings

2019 ◽  
Author(s):  
Sebastian Mendes ◽  
Zhi Zhang ◽  
Pierre Ghisbain ◽  
Marguerite Pinto ◽  
Elisabeth Malsch
Keyword(s):  
Cost Effective ◽  
Tuned Mass Dampers ◽  
Interior Space ◽  
High Rise ◽  
Complex Shapes ◽  
Dynamic Analyses ◽  
Broad Domain ◽  
Wind Events ◽  
Tuned Damper

<p>High-rise buildings are progressively being designed and constructed in increasingly slender and complex shapes. Consequently, excessive wind-induced vibrations of these structures are a growing serviceability concern due to their flexibility. Tuned mass dampers (TMDs) are regularly incorporated into high-rise buildings for mitigating excessive wind-induced vibrations. However, traditional TMDs are only effective over a narrow domain of frequencies, require an immense mass and occupy a significant volume of interior space. A novel modular air-tuned damper system was developed which is more cost-effective and flexible in distributing its mass throughout a building to make efficient use of unused space. Importantly, the air-tuned damper system is capable of being tuned across a broad domain of frequencies to more effectively alleviate wind-induced vibrations. This paper presents a case study demonstrating the performance of a high-rise building under 1- year and 10-year wind events whilst equipped with the air-tuned damper system. Dynamic analyses were performed for evaluating the reductions of the building’s lateral accelerations considering different air-tuned damper configurations. The performance of the building under the different damper configurations is discussed.</p>

Optimal design of an array of active tuned mass dampers for wind-exposed high-rise buildings

2012 ◽  
Vol 20 (6) ◽  
pp. 903-917 ◽  
Author(s):  
Ilaria Venanzi ◽  
Filippo Ubertini ◽  
Annibale Luigi Materazzi
Keyword(s):  
Optimal Design ◽  
Tuned Mass Dampers ◽  
High Rise

scholarly journals Distributed Multiple Tuned Mass Dampers for Wind Vibration Response Control of High-Rise Building

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Said Elias ◽  
Vasant Matsagar
Keyword(s):  
Equations Of Motion ◽  
Vibration Response ◽  
Mode Shapes ◽  
Tuned Mass Dampers ◽  
Response Control ◽  
High Rise ◽  
High Rise Building ◽  
Wind Vibration ◽  
Wind Induced Vibration ◽  
Multiple Tuned Mass Dampers

Multiple tuned mass dampers (MTMDs) distributed along height of a high-rise building are investigated for their effectiveness in vibration response control. A 76-storey benchmark building is modeled as shear type structure with a lateral degree of freedom at each floor, and tuned mass dampers (TMDs) are installed at top/different floors. Suitable locations for installing the TMDs and their tuning frequencies are identified based, respectively, on the mode shapes and frequencies of the uncontrolled and controlled buildings. Multimode control strategy has been adopted, wherein each TMD is placed where the mode shape amplitude of the building is the largest or large in the particular mode being controlled and tuned with the corresponding modal frequency. Newmark’s method is used to solve the governing equations of motion for the structure. The performance of the distributed MTMDs (d-MTMDs) is compared with single tuned mass damper (STMD) and all the MTMDs placed at top floor. The variations of top floor acceleration and displacement under wind loads are computed to study the effectiveness of the MTMDs in vibration control of the high-rise building. It is concluded that the d-MTMDs are more effective to control wind induced vibration than the STMD and the MTMDs placed at top floor.

An Optimization Method of Multiple Tuned Mass Damper Systems and Application to Bridge With Moving Car

2016 ◽  
Author(s):  
Thuan Nguyen ◽  
Nanako Miura ◽  
Akira Sone
Keyword(s):  
Control System ◽  
Optimal Design ◽  
Vibration Control ◽  
Design Theory ◽  
Seismic Loading ◽  
Optimization Method ◽  
Tuned Mass Damper ◽  
Tuned Mass Dampers ◽  
High Rise ◽  
Mass Damper

Tuned mass damper (TMD) device has been a popular vibration control system for moderns as high-rise building, bridge to suppress excessive vibration due to environment or human loading. Moreover, multiple tuned mass dampers have received much attention in the researched. An optimal design theory for bridge implemented with multiple TMD devices is proposed in this paper. The proposed method chooses the objective function with the constraints on the peaks which are at the same heights over frequency ranges of interest. This proposed method successfully reduces vibration of bridge traveled by a car. In a future study, we will extend the optimal design theory for the cases with more than one car and the bridge under seismic loading.

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