Seismic response control of adjacent high-rise buildings linked by the Tuned Liquid Column Damper-Inerter (TLCDI)

Wang, Qinhua; Qiao, Haoshuai; Domenico, Dario De; Zhu, Zhiwen; Tang, Yi

doi:10.1016/j.engstruct.2020.111169

Cited by 59 publications

(19 citation statements)

References 38 publications

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“…is result implies that when inter-building passive control devices are installed to mitigate dynamic responses of the two adjacent high-rise buildings, the mitigation efficiency of the devices for wind-induced vibration control is better than the seismic vibration control. is anticipation is consistent with the previous works [8,43,44,48] from the authors dealing with wind-induced and earthquake-induced vibration mitigation with inter-building passive control devices. In these researches, different acceleration-dependent tuned inerter dampers, i.e., TMDI and TLCDI, were employed to control wind-induced and seismic responses of the two adjacent high-rise buildings analyzed in the present work.…”

Section: Conclusion and Discussionsupporting

confidence: 92%

“…After the installation of TMDI on the two adjacent buildings, the mean reduction coefficients of the top-level acceleration are 37.5% for Building 1 and 45.2% for Building 2 at the acrosswind direction, while the maximum corresponding reduction coefficients under seismic excitations are only 23.0% and 37.5% [43,44]. If TLCDI is installed to mitigate dynamic responses, the reduction coefficients of windinduced acceleration responses of Building 1 and Building 2 are 37.7% and 42.0%, respectively, while the corresponding reduction coefficients in case of seismic acceleration control are only 15.7% and 26.1% [8,48]. ese findings verify that both TMDI and TLCDI are more effective in controlling the wind-induced acceleration responses of adjacent high-rise buildings, as compared to earthquake-induced acceleration responses.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

“…Some seismological information of the 22 earthquakes is listed in Table 2. ese ground-motion records have been used in previous [47,48]. e individual and average PSDs of 44 recorded earthquakes are shown in Figure 5.…”

Section: Wind Tunnel Test and Ground-motion Time Historiesmentioning

confidence: 99%

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Comparison of Dynamic Responses of Parallel‐Placed Adjacent High‐Rise Buildings under Wind and Earthquake Excitations

Wang

Tiwari

et al. 2021

Shock and Vibration

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Two parallel-placed adjacent high-rise buildings are often linked to each other through passive control devices for vibration mitigation purposes. The mitigation efficiency of these control devices mainly depends on the characteristics of relative dynamic responses, namely, opposite-sign and same-sign responses of the two buildings. The present research first identifies an opposite-sign response factor to estimate the time ratio of opposite-sign responses. Subsequently, a structure comprising two adjacent high-rise buildings (with different natural frequency ratios) subjected to both wind and earthquake excitations is analyzed. Wind-induced responses are evaluated based on wind loads obtained from wind tunnel tests, while earthquake responses are determined through a suite of 44 natural ground-motion records. The results indicate that opposite-sign factors of the displacement, velocity, and acceleration responses under wind loads, especially at across-wind direction, are larger than those under earthquake excitations, and opposite-sign response factors under wind loads are insensitive to variation of the natural frequency ratio of the two adjacent buildings compared with those under earthquake excitations. The conclusions of this research may be helpful for wind-resistant and antiseismic design of parallel-placed adjacent high-rise buildings.

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Section: Conclusion and Discussionsupporting

confidence: 92%

Section: Conclusion and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of Dynamic Responses of Parallel‐Placed Adjacent High‐Rise Buildings under Wind and Earthquake Excitations

Wang

Tiwari

et al. 2021

Shock and Vibration

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“…And, the results showed that the adaptive TMD had better control effect and robustness than that of passive TMD. Wang et al [26] introduced a Tuned Liquid Column Damper-Inerter (TLCDI) system to control the seismic response of adjacent high-rise buildings. e results indicated that the optimum TLCDI system can significantly reduce the peak acceleration of both adjacent high-rise buildings.…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on Damping Effect of Double‐Layer Tuned Mass Damper for High‐Rise Structure

Shen

Wang

et al. 2021

Shock and Vibration

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A double-layer tuned mass damper (DTMD) has advantages of wide damping frequency band and strong robustness. At present, there is a lack of seismic design methods for high-rise structures based on DTMDs. In this study, a DTMD parameter optimisation method was proposed, with the objective of minimising the peak displacement response of a first N-order vibration modal with a vibration mass participation factor of 85%. Then, a scale model of a high-rise structure was fabricated, along with a corresponding DTMD. Different types of excitations were chosen to clarify the dynamic responses of the model with and without the DTMD, including Site-II ground motions, long-period (LP) ground motions without pulses, and near-fault pulse-type (NFPT) ground motions. The results indicate that the dynamic responses of high-rise structures under LP and NFPT ground motions are much greater than those under Site-II ground motions. The DTMD can effectively reduce the absolute displacement response, acceleration response, and strain response at the top floor of the test model. However, the DTMD has a time delay in providing the damping effect. A smaller damping ratio between the upper TMD and the controlled structure will lead to a more significant damping effect for the DTMD.

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“…33,34 The inerter element can also be used with other types of dampers. For instance, Wang et al 35 introduced an inerter element into a tuned liquid damper and formed tuned liquid column damper-inerter (TLCDI), and Javidialesaadi and Wierschem 36 developed a new nonlinear energy sink (NES) with an inerter. The inerter-based devices have been applied to control the vibrations of different types of structures.…”

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confidence: 99%

Performance evaluation of multiple tuned inerter‐based dampers for seismic induced structural vibration control

Chen

Liu

et al. 2021

Structural Contr & Hlth

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Recently, many kinds of tuned inerter-based dampers (TIDs) have been developed due to the mass amplification property of inerters. These devices normally present better control performances compared with the conventional tuned mass damper (TMD). For a single TID installed on a main structure, similar to the single TMD system, its control behavior is sensitive to the changes in the parameters of the main structure, and mistuning may occur. The control effectiveness can then be significantly reduced. To solve this problem, multiple TMD (MTMD) system has been developed. Similar to the MTMD system, this paper proposes a multiple TID (MTID) system for seismic induced vibration control of engineering structures. Four types of MTIDs, depending on the connection configuration of the dashpot, spring, and inerter elements, are considered. The optimum design parameters of the MTID systems are firstly obtained with the assumption of a white-noise excitation. The distribution of the optimum design parameters, the control performance, the stroke of each TID, and the robustness of the control system are then systematically investigated. Moreover, the control effectiveness of the optimized MTIDs is also examined under natural ground motions, and comparisons among the four types of MTIDs as well as the conventional MTMD are conducted. The analytical results show that among these control schemes, two types of MTIDs, that is, (a) the parallel connection of the spring and dashpot with the series connection of the inerter and (b) the parallel connection of the inerter and dashpot with the series connection of the spring, have pronounced control performances to suppress the displacement and absolute acceleration responses of the main structure. K E Y W O R D S inerter, multiple tuned damper (MTMD), multiple tuned inerter-based damper (MTID), optimum design, seismic control effectiveness 1 | INTRODUCTIONTuned mass damper (TMD) is a widely adopted vibration control strategy for suppressing earthquake-and/or windinduced structural vibrations. A TMD normally consists of a secondary mass connected to a primary structure by a spring and a dashpot with appropriate parameters. The TMD system is tuned (i.e., by properly selecting the spring

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Seismic response control of adjacent high-rise buildings linked by the Tuned Liquid Column Damper-Inerter (TLCDI)

Cited by 59 publications

References 38 publications

Comparison of Dynamic Responses of Parallel‐Placed Adjacent High‐Rise Buildings under Wind and Earthquake Excitations

Comparison of Dynamic Responses of Parallel‐Placed Adjacent High‐Rise Buildings under Wind and Earthquake Excitations

Experimental Research on Damping Effect of Double‐Layer Tuned Mass Damper for High‐Rise Structure

Performance evaluation of multiple tuned inerter‐based dampers for seismic induced structural vibration control

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