Development of V-Shaped Hybrid Mass Damper and its Application to a High-Rise Building

1994 ◽  
Vol 6 (3) ◽  
pp. 249-255 ◽  
Author(s):  
Koji Tanida ◽  
◽  
Masao Mutaguchi ◽  
Yuji Koike ◽  
Tamotsu Murata ◽  
...  
Keyword(s):  
Active Control ◽  
High Performance ◽  
Mass Movement ◽  
Experimental Tests ◽  
Servo Motor ◽  
Earthquake Excitation ◽  
High Rise ◽  
High Rise Building ◽  
Mass Damper ◽  
Easy Operation

A V-shaped hybrid mass damper has been developed with a view to reducing the vibration induced by wind or earthquake excitation on a 230m high-rise building. The passive pendulum mechanism comprised of a Vshaped sliding mass is combined with the active control of the mass movement driven by a servo motor, and the mechanical system has been further refined for compactness and easy operation of tuning the natural frequency. The high performance of the device has been verified by numerical analyses and experimental tests conducted in a laboratory prior to its installation in the building concerned.

Development of V-Shaped Hybrid Mass Damper and its Application to High-Rise Buildings

1995 ◽  
Author(s):  
Masanori Imazeki ◽  
Koji Tanida ◽  
Masao Mutaguchi ◽  
Yuji Koike ◽  
Tamotsu Murata ◽  
...  
Keyword(s):  
First Year ◽  
Building Structures ◽  
Large Space ◽  
Natural Period ◽  
High Rise ◽  
High Rise Building ◽  
System A ◽  
Mass Damper ◽  
Story Building ◽  
Auxiliary Mass

Abstract A hybrid mass damper system has been developed with a view to counteracting wind- and earthquake-excited vibrations of large high-rise building structures. In order to eliminate the large space needed to accommodate a pendulum-type mass damper adapted to the long period of high-rise building, mechanism has been devised for suspending the auxiliary mass on a V-shaped rail sliding on rollers. The base angle of the V-shaped rail is varied for adjusting the natural period of the mass damper system. A suboptimal algorithm based on the minimum norm method has been adopted for designing the auxiliary mass driving system. Three units of this damper system, each equipped with auxiliary mass weighing 110 tons, have been installed on a 52-story building. Satisfactory performance conforming in all practical aspects with design has been verified from vibration test on actual building after installation. As sequel, the functioning of the system during the first year of service is also reported.

Development of Large Tuned Mass Damper with Stroke Control System for Seismic Upgrading of Existing High-rise Building

2015 ◽  
Vol 104 (4) ◽  
pp. 1-8 ◽  
Author(s):  
Tomoki Yaguchi ◽  
Haruhiko Kurino ◽  
Naoki Kano ◽  
Takeshi Nakai ◽  
Ryusuke Fukuda
Keyword(s):  
Control System ◽  
Tuned Mass Damper ◽  
High Rise ◽  
High Rise Building ◽  
Mass Damper

Robust multi-objective optimization design of active tuned mass damper system to mitigate the vibrations of a high-rise building

2014 ◽  
Vol 229 (1) ◽  
pp. 26-43 ◽  
Author(s):  
S Pourzeynali ◽  
S Salimi
Keyword(s):  
Damping Ratio ◽  
Tuned Mass Damper ◽  
Robust Design Optimization ◽  
Design Parameters ◽  
Control Force ◽  
Multi Objective ◽  
High Rise ◽  
High Rise Building ◽  
Mass Damper ◽  
Damper Design

In engineering applications, many control devices have been developed to reduce the vibrations of structures. Active tuned mass damper system is one of these devices, which is a combination of a passive tuned mass damper system and an actuator to produce a control force. The main objective of this paper is to present a practical procedure for both deterministic and probabilistic design of the active tuned mass damper control system using multi-objective genetic algorithms to mitigate high-rise building responses. For this purpose, extensive numerical analyses have been performed, and optimal robust results of the active tuned mass damper design parameters with their effectiveness in reducing the example building responses have been presented. Uncertainties, which may exist in the system, have been taken into account using a robust design optimization procedure. The stiffness matrix and damping ratio of the building are considered as uncertain random variables; and using the well-known beta distribution, 50 pairs of these variables are generated. This resulted in 50 buildings with different stiffness matrices and damping ratios. These simulated buildings are used to evaluate robust optimal values of the active tuned mass damper design parameters. Four non-commensurable objective functions, namely maximum displacement, maximum velocity, maximum acceleration of each floor of the building, and active control force produced by the actuator are considered, and a fast and elitist non-dominated sorting genetic algorithm approach is used to find a set of pareto-optimal solutions.

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