Performance test of a tuned liquid mass damper for reducing bidirectional responses of building structures

Heo, Jae-Sung; Lee, Sung-Kyung; Park, Eun-Churn; Lee, Sang‐Hyun; Kang, Min; Kim, Hong-Jin; Jo, Ji-Seong; Cho, Bong-Ho

doi:10.1002/tal.486

Cited by 28 publications

(14 citation statements)

References 14 publications

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“…Heo et al . () proposed a tuned liquid mass damper (TLMD) to reduce bidirectional responses of building structures, and its control performance was experimentally evaluated. First, the control performance of a TLMD mounted on a scale‐downed single‐degree‐of‐freedom building model was experimentally evaluated by exciting this system with an actuator.…”

Section: Introductionmentioning

confidence: 97%

Investigation and optimization of nonlinear pendulum vibration absorber for horizontal vibration suppression of damped system

Fallahpasand

Dardel

Pashaei

et al. 2015

Struct. Design Tall Spec. Build.

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SUMMARYNonlinear pendulum vibration absorber is investigated in this paper to control resonance peak of linear primary system with horizontal vibrations subjected to forced and motion excitations. Pendulum vibration absorbers have been utilized as tuned mass damper for many years, but by this knowledge, nonlinear analysis of this problem has not been investigated anywhere. Harmonic balance (HB) method is used to solve nonlinear differential equations and analyze the stability of their results. Optimum damping and natural frequency ratios are derived by minimizing the maximum steady-state response of primary system with numerical optimization. The presented analysis shows that the pendulum absorber design based on linear model resulting in a small area around the original frequency for vibration absorption. For linear pendulum design, with a small deviation from the linear range, the amplitude of initial system greatly increased, and its performance will fall sharply. But if the design is based on a nonlinear pendulum with larger amplitude of motion, the resulting design will have a higher accuracy. In this paper, responses with inferior periods are inspected beside main period one. Different methods are used for optimized nonlinear pendulum. Finally, system robustness and chance of bifurcation will be predicted. Copyright

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Section: Introductionmentioning

confidence: 97%

Investigation and optimization of nonlinear pendulum vibration absorber for horizontal vibration suppression of damped system

Fallahpasand

Dardel

Pashaei

et al. 2015

Struct. Design Tall Spec. Build.

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“…In order to reduce the cost of the damper, there have been cases taking advantage of water tanks acting as the vibration-mass of TMD containing Australian Sydney Tower and Guangzhou New TV Tower [2] [6].The cases provide new ideas for application of TMD and TLCD and following them some scholars do some research in combined use of TMD and TLCD [7][8][9]. Y. L. XU [7] innovates a tuned liquid column/mass damper (TLCMD), which is composed of a tuned mass damper filled with column water, and studies the effects of liquid motion on the tuned mass damper effectiveness.…”

Section: Introductionmentioning

confidence: 98%

Control of wind-induced vibration by combined tuned damper for super tall buildings

2015

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The wind-induced vibrations of super tall buildings become excessive due to strong wind loads, super building height and high flexibility. Tuned mass dampers (TMD) and tuned liquid column dampers (TLCD) have been widely used to control the vibration for super tall buildings for decades. As an economical vibration control option, the fire protection water tanks installed in super tall buildings are commonly utilized as TLCD to control the structural vibrations. There are however many cases that the TLCD system alone can hardly meet the human comfort criteria due to the storage limit of water tank, and additional TMD system can be installed to further reduce the structural vibration. The wind-induced vibration mitigation effects of super tall buildings equipped with both tuned mass dampers and tuned liquid dampers (CTD, combined tuned damper) are investigated in this study. To assess the effectiveness of the CTD system, a comparison study is conducted amongst the TLCD, TMD and CTD systems installed in a real super tall building project. The results show that the CTD system is cost-effective and has sound vibration mitigation capacity. Considering both the economical advantage of the TLCD system and the high efficiency of the TMD system, the CTD system is a competitive option for wind-induced vibration control of super tall buildings.

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“…The fact cannot be denied that the earthquake has indeed an arbitrary direction, represented by a bidirectional ground movement [14] [27]. The bidirectional seismic inputs in buildings will induce translation-torsion coupled vibrations in buildings which is more severe with severe structural damage and should be taken into consideration [70].…”

Section: Introductionmentioning

confidence: 99%

Advances in bidirectional modeling and structural control

Paul

2015

2015 Resilience Week (RWS)

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This paper provides an overview of building structure modeling and control under bidirectional seismic waves. It focuses on different types of bidirectional control devices, control strategies, and bidirectional sensors used in structural control systems. This paper also highlights the various issues like system identification techniques, the time-delay in the system, estimation of velocity and position from acceleration signals, and optimal placement of the sensors and control devices.978-1-4799-8594-4/15/$31.00 ©2015 IEEE

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Performance test of a tuned liquid mass damper for reducing bidirectional responses of building structures

Cited by 28 publications

References 14 publications

Investigation and optimization of nonlinear pendulum vibration absorber for horizontal vibration suppression of damped system

Investigation and optimization of nonlinear pendulum vibration absorber for horizontal vibration suppression of damped system

Control of wind-induced vibration by combined tuned damper for super tall buildings

Advances in bidirectional modeling and structural control

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